VOL. 127, PART 1 The Society celebrates
31 MAY, 2003 150 years in 2004
Transactions of the
Royal Society of South
Australia
Incorporated
Contents
Wiebkin, O. W. A reason to celebrate one hundred and fifty years of science
in South Australia = ]
McArthur, A. J. New species of Camponotus (Hymenoptera: Formicidae)
from Australia - - 3
Kayaalp, A. 8S. & Bye, J. A. T. The water = salt balance of the reservoir
catchments of the Mount Lofty Ranges, South Australia = — 15
Whittock, S., Steane, D. A., Vaillancourt, R. E. & Potts, B. M. Molecular
evidence shows that the tropical boxes SERIE HS
Subgenus Minutifructus) are over-tranked -— -— = 27
Ross, K. E., Bidwell, J. R., Williams, M. & Boland, J. Trace metals seatkaniae
with seston collected from Spencer Gulf, South Australia,
near a lead smelter: spatial distribution, temporal ee
and uptake by bivalves ~ = - 33
Richards, S. J. & Burton, T. C. A new species of Choerophryne Sa NAE
Microhylidae) from Southern Highlands Province, eee
New Guinea 47
Timms, B. V. & Geddes, M. C. The Fairy Shrimp genus Branc Ta =
1903 (Crustacea: Anostraca: Thamnocephalidae) in South
Australia and the Northern Territory, including descriptions
of three new species = -— - - - ~- = = = 53
PUBLISHED AND SOLD AT THE SOCIETY’S ROOMS
SOUTH AUSTRALIAN MUSEUM, NORTH TERRACE, ADELAIDE, S.A. 5000
TRANSACTIONS OF THE
ROYAL SOCIETY
OF SOUTH AUSTRALIA
INCORPORATED
VOL. 127, PART 1
FROM THE ROYAL SOCIETY ROOMS
A REASON TO CELEBRATE
ONE HUNDRED AND FIFTY YEARS OF SCIENCE
IN SOUTH AUSTRALIA
Summary
“... the birth of a lusty infant ...” This was Dr. R. S. Roger’s evocation of the South
Australian Institute in his Presidential Address as published in the Transactions and
Proceedings of the Royal Society of South Australia in 1922. Further, in his definitive
History of the Society, he described how its “junior member”, the Adelaide
Philosophical Society, was fawned on January 10" 1853, one hundred and fifty years
ago. Eventually, that Adelaide Philosophical Society had bestowed upon it the Royal
patronage, a status that we, as the Royal Society of South Australia Inc., have proudly
maintained for nearly one and a quarter centuries.
Franses af the Royal Sactery af S. Ause (2004), E27) 1-4
FROM THE ROYAL SOCIETY ROOMS
A REASON TO CELEBRATE
ONE HUNDRED AND FIFTY YEARS OF SCIENCE IN SOUTH AUSTRALIA
Preamble
‘athe birth of a lusiv infant.. 7 This was Dr ks.
Rovers’s evocation of the South Australiana Institute
in his: PreswWential Address a. published tthe
‘Transactions and Proceedings of the Royal Society
af South Australia in 1922. Further. in bis definiuve
Lhistory of the Society, he deseribes how its “junior
member. the Adelaide Philusophieal Society, Wis
lawned of kunuary (Oth (853. one hundred ane Ailty
years avo, Eventually. that Adelarde Philosophical
Society had bestowed upon it the Royal patronage. a
stals (hat we, as the Royal Society of South
Australia Tne,. have proudly maintained lor nearly
one and a quetier cenuuries,
Traditionally, edeh new volume of the Transactions
ot the Rayal Society of South Australia has. in its
business-like way, daunehed straight mite a
presentation of scientific nevelly on page one.
Unashamedly. the ultimate page of the Transactions
Is generally the last page of a Boef Communication
(hal represents some “breaking” screntilie
knowledge, Only when the occasion wises, have the
liditors added an obituary to eelebrate the
outstanding eareer id science ola recently deceased
Fellow of the Soviety,
Today. we break with that format, We have opened
the first Volume of the Transachons for 2003 with a
celebration of our Soeicty’s infuney and adolescence.
Council suggested that Eo prepare that eclebrition.
Particularly. T intend to celebrate the importance 9
suine of the carly contributors to our establishment.
Whilst that establishment occurred ina colony
inured Front Londen to’. diffiise useful Knowledge
among the colonists... dts critical mass ol
population would have only had a dimited intrinsic
poolol intellectual diversity. T hope that my Pocus on
these early bewonings will stimulate an emergence
of some of our present Bellows to become charged
with similar invigeruting inttidtives or a greater
invelvement In the Royal Society of South Australia
of the fwenly Grst century. Notably, such imitiatives
might be virned at our Soeiety’s current need to
disseminue aw yvreaer excitement of sciemtilic
curiosity to a veneral community whose quest for
knowledge clearly remains unfulfilled. Perhaps such
indiatives might involve management or poliy-
mitking within the Society, Gur need for help with a
ringe of aspeels of our publicatigns is always a
priority, Alternatively, our readers may be moved to
auement or drive w novel approach to the seientitic
programme, Personally, Tap particularly interested
in cheouraging our younger Fellows ta realise thei
worth, Indeed. while the average uze of our
Fellowship night be considered us ‘mature’. the
sentlemen who latnehed (he Society were, in fel.
very young.
The Birth of a Vision
In 1853, five ventlemen gathered 1 Me John Lb,
Young’s house in Stephen's Place. Adelaide. to
formally establish a Suciely “.... lor the diseussion
of all subjeets connected with science, Hterature iid
the urts”,
Young, togeiher with the Chairman of this
preliminary mecuny. Jolin Howard Clark. a tormer
cdilor Of The Register, had been fellow students at
King’s College. London, Both Were 23 years of age
Although Young was a professional engineer, tis
first position afler His arrival im South Australie in
October [SSO was gs din Assistant-master in the
newly founded propnetury High School of the S.4
Company's premises on North Terrace. Later, he
opened a school in Ehernever Place. off Runule
Street Eust. Clark was the first Honorary Secretary of
the infant Society and held that olhee for nie years,
Then. a glotton for challenge, he heluf a position of
Hon Treasurer tor eleven yours —a difficult period
during an economic depression. Ironically, on the
celebration of the Twenty Fifth Anniversary of the
Philosophical Society of Adelaide on September
30th 1878, shortly before Royal aecession. his death
had to be recorded by the Commer.
Also. in attendance af the three preliminary
meetings al Yous hottse, as well as at the
inaugural gathering ta iuineh the Society, was
Charles Gregory. Feimuighe. He was it 35 year old BA
eraduate fram Trinity College. Dublin whose qune
appears for the Hest time in the Seuth Australian
Almunae for 185) as the Headinester of the High
Sehool, He is cited as the originator of the scheme ta
launch the Saviety.
Dr Willam Grosse ahd a My Jones, whose history
is obscure, mnude up the remuining members of the
inaugurating committee. Afier being co-opted its
Vice-Presidentin 1355. us well as presenting a paper
on Respurution in Auposr, Grosse was still recorded
as a full member twenty five years later, This record
appeared in the format of the first issue ob the
: IS0 YEARS UP SCIENCE IN SOUTHIANUSTIRAL TA
Trunsactions and Proewedings of the Philosophical
Society lie ps fot toe dissimiker from the
“Lrimsuetions of the Reval Soerety of South Australian
Inc Today. Noniely presentutiaims to the Society
“appear as fully peerreviewed, Council-ipproved
papers. The Transactions hive ventinued to be
published ever sine.
By January 1854 the infant Sociery had grown to
(hirty-five members, it had. properly constituted set
of Rules aie it had adopted its first Anti Report,
Arnong its Olficers it hawk alfracted Fis Pxeelleney
Si Ph) Youoy as President.
‘The Men
Ih uddition oy) committing their effort to huth rhe
fortnation and onwotn contributions ts the meetings
of (he Philosophical Society, these youre men Were
more Chan just academic. Both Young and Feinaigte
were “seiaed with gold fever and went lo the
Victorian Digeings™, Another founding Member,
Edward Davy, “a versatile deere. 2) fad oS,
Already been recownised, ...7, back in England. “...
usa formidable rivaltu....Cooke and Wheutstone in
(legruphy’. Once in Adelaide, he pursued a
carver as a juurmulist and was editor of The Adelaide
Pyiuer, Later he was a mitmager of the Yatala
Copper Smelring works and wis Controller of the
Government Assay Olfiee where gold tokens were
being coined for the lirst time in Australie Shortly
Wer iis he heeume a farmer and then pan a
wiUeshow,
W.W.R, Whiridge wis a journalist and pastoralist
ard, beh (he edlitoy of the Avis Bxaniier and
subsequently of The Register, he advocated the
Value. und proceed the ari. of publicity: especially
of the papers at the Adehide Philosuphical Society.
Not only was hed very Jilerary man whe presented
an ert pauper on Cussius Lenginus The
Philosophers Cyite in Pebruary, 1854, but mm Ps5Y,
he lalked on “cat lew experiments mide by the
writer... on"... Ozonometric Slindurds,...°) Sadly
he died a the age al 36 vears,
Among these founding members. the premier
renaissuinve mil must be awarded ta Mr Bo Hersehel
Babbage, Among his papers read aver the first five
yore OF reported mectings, Babbage’s inclided one
on The Art of the Duguerrealyping”, Olhers ranged
from ~*~) Mereerolevical Observations’. through
“The Presence of Basie and ‘Trap Rovks in Cold
Formation im the Colony and “Phe Connection
Berween Deficient Motise-drainage and Disease”
Historieaty. his dettiled discussion abouta praposcd
Fapedition into the Interior was of polities!
significunes and it was (he Lord Bishop of Adelaige
who moved the vole cot thanks! This diversity is
perhaps ulsurprisiny when one recalls that thts
Babbuse’s father was the oneted! Enetish
malhermauichin. conlroyerstalist vad father al the
vonputer. Charles Babbage.
To enliven the diversity of our own titles. out
Proerunane Ollicer muy like ty lake note al iyo
abstracts in P¥54 ind 1835, Charles Davies spoke on
“Spontumeous Combustion’ and Huan
Spontaneous Combustion!
The “Continement” Before (he Birth
and Post-parturition
The preearsers to the formation of the Adelaide
Philosophical Society cum be fraced back fo the
Adelph) Chambers. London in August 1834 when the
South Austritain Literary and Scientific Asseciunlon
wis fended (a fortnight alter the Colony had
recelved Royal assent), Alter various misadyentires, a
library chest oF somewhal darmaged books eventually
wrived in Adelaide. together with the Royal Charter
lor the Colony. The stile of such goods and the delay:
in awnival, did pet augur well for the suceess of the
Association and. indeed, further meetings in South
Australia soon ceased. Over the nest ten turbulent
years, allempts to develop “The Adelaide Mechanics’
Instilute” faifed. This Institute wits developed alone
the similar tines lo the bodies of mechanies that had
heen formed baek in Briktin by the Quaker George
Birkbeck. “These Insdtites were deemed to tiprove
(he souls ad the earning capacity of mechinies, The
very elilish middle class, Adeluide Subscription
Library was ase fistituted, [loo was modelled on the
hest English examples with high subscriptions and
exclisive membership. The perspicacious Charles
Mann, Crown Solicitor intellectual and subsequently
i Member of the embryonic Philosaphical Society,
had identlied that the pressure of employment
nevessury for carly estiblishtment of inimignaion in
the new colony had been responsible tor the demise of
the South Australian Literniry and Seientilie
Association, Hts view now uppled to the Adelaide
Subscription Library, ‘This august body simytarly
declined, However. by 1848. Tollowing un upproach
by the Mechinics Institute, an amalsamutin
surprisingly uve rise, even aller some early
rismanwernient, ta the o lusty tnlint., oO. the South
Austrian Instilate. Incorponition of the six-year old
Philosophical Society wilh te wis effected in 1859
While the litison was not wholly advanhigeeus 19 the
Philosophival Society. i haa estiblished itsell as a
presenter OF material of high standard Upavards of
300) papers had been read by IS70 at nearly 170
mectings, Moreover bilef absteaets of the
‘Tripsactions of the Philosophical Society, appeared
during a periad of inconsistent annual reporting as
uppendices in the Annual Reports of the South
Australi Instiute,
150 YEARS OF SCUENCE IN SOUTIL AUSTRALIA 3
Celebrate and Commit
So, pulling aside the difficulties that the infant
Society endured, up until its accession to become the
Royul Society of South Australia, we can celebrate
2003, with some historic pride, as the one hundred
and fiftieth anniversary of the inception of our
predecessor in 1853.
Perhaps, during the next 27 years. before our Royal
patronage of 1X80 can be formally celebrated, we
can be jolied into ensuring that we bow build on the
firm toot-hold that our predecessors have provided
us Over the past 150 years. We must square up to the
challenge that we have recently confirmed in the
revision of our Constitution and Rules. The
promotion and diffusion of scientific knowledge
includes
(i) W maintenance of our high standard of
publication,
(ii) high orders of diverse presentahons to our
Fellowship and guests.
(ii) Stronger encouragement to our younger
investigators and
(iv) w commitment through our Fellowship to
widen the benefit to the general community wilh the
fruits of our corporate and individual curiosity.
Inaddressing these aims | would like to see several
developments.
While maintaining the very high quahty of peer
review, the Transactions and other publications
should be made into even more widely accessible
modes of dissemination — by format modification
and electronic availability:
The promotion of our already broad programme of
presentations and meetings needs to be tinlored to
encourage audiences to fecognise the broader
spectrum of interactive knowledge that has become
denied by the more specialist meetings frequented by
many of us practicing scientists, (The raison d'etre of
our Society may even nourish the mumfestation of a
phoenix from the ashes of a defunct ANZAAS!),
Given the huge reservoir of expertise and
experience in our membership, the Royal Society of
South Australia Inc. has a responsibility to generate
4 more recognisable profile and catalyse 4 s(ronger
uuthority between the knowledge bases of the
relevant institutions around the state and ourselves,
und beyond. That responsibility includes addressing
the Optimal way that the contents of our library. 40%
of which is unique within South Australia, can be
accessed.
Finally. while we all acknowledge that a vibrant
and actively developing membership base is crucial,
of more importance is what resource we can offer
ihat membership. We need to be cognisant of what
our resources really are, Acquisition, upgrading and
management of [hose resources are Our Co-Operative
responsibilities. In the current politically correct
vernacular. we might have described our “lusty
infants” as resouree-deprived. Bul they were
endeavour-rich, Can the Royal Society of South
Austraha Ine, mateh their resolve in the next one
hundred and filly years | believe that we can and
will,
So, us we celebrate the resource-rich status that our
forefathers have laid down, cun we take this
opportunity lo ask ourselves what contribution each
can now make to provide the legacy lor the next 27
yeurs towards the celebration of the anniversary of
Royal accession?
Ole W. Wiebkin
President
3/ st May 2003
NEW SPECIES OF CAMPONOTUS (HYMENOPTERA:
FORMICIDAE) FROM AUSTRALIA
By A. J. MCARTHUR*
Summary
McArthur, A. J. (2003) New species of Camponotus (Hymenoptera: Formicidae) from
Australia. Trans. R. Soc. S. Aust. 127(1), 5-14, 31 May, 2003.
Seven new species of Camponotus are described from Australia viz. C. fergusoni, C.
longifacies, C. pawseyi, C. pitjantjatarae, C. rudis, C. scotti and C. simpsoni. They are
compared with species that are similar in appearance viz. C. chalceus Crawley, C.
sponsorum Forel, C. tasmani Forel, C. inflatus Lubbock, C. lownei Forel, C. hartogi
Forel and C. lownei Forel respectively.
Key Words: Formicidae, Formicinae, ant, Camponotus.
Transactions af re Rawal Sockets ap 8. Aust. (2005). (271). SAE
NEW SPECIES OF CAMPONOTUS (HYMENOPTERA: FORMICIDAE)
FROM AUSTRALIA.
by A. McoAgiiiuie’
Suminary
Me Atri, A J, (2003) New species of Camponotus (Lymenoplera: Formicidae) trom Austrahtu, Huns, Ro See,
Soda, 127, S- bb, 31 May, 2003.
Seven new species of Compunorys are deseribed trom Australia viz. Co fergisani. ©. lengifucies, C. plaveseyt.
C. pitjanypotane. C. rudis, C. scot and C. simpyoni. They are compared with species that are stmilar in
uppeartnee viz, Co ehaleeus Crovley. © speumsorun: Forel CO taymean Forel. ©. influtus Lubbock. CO loynel
Forel €. hactogr Foreland C. fowner Forel respectively,
Kiy Worps: Formicidae. Pormicinaey ant, Comypenctiues.
Introduction
The practical identification of Australian ants to
sub-lamilics and genera has became possible only
recently (Shathick 1999), The stinvless sub family
Formicinae contains the genus Cumponodis and ts
species are found living in large colonies in most
habitats. ‘The taxonomy of Cempononmy is
incomplete: it is perplexing due to its polymorphism
ie. the wide variation in size, shape, pilosily and
mlegument displayed by inajor and miner workers
from the same colony, Ecologists and others using
alitsas indicators encounter mostly minor workers—
{he most numerous caste. In this paper emphasis is
therefore viven to descriptions of minor workers.
Several ultenipts have been made to split
Caumporons speees of the world intg small groups
to facilitate identification, the most thorough: being
where pboul 40 sub-genera or species-groups ure
listed (linery 1925). However some of Emery’s
characters are not readily applicable and many of the
Old Sub-genera. im Cemponcluy are unttastworthy
(Bolton 1998), [tts oulside the scope of this paper lo
ussizn Sub-genera of species-group names here.
Three species-zroups m Carnie in Australia
huve recently been published along with descriptions
of unique characters with which the three species-
woups can be distinguished. These are (1) C.
nivriceps speeres-group. distiiguished by the
anterior margin ofthe clypeus proyecting with a wide
median concavity (MeArthur & Adams 1996). (iC.
miterovephahis species-zroup. by its swollen. fore
ferurs and truncated heads (MeArthur & Shuuuck
2001) and (iii) Co wiederkefiri species-group by J
shaped setae on the underside of the head capsule
(Shattuck & MeArthur 2002), Llowever, Hone of the
new species deseribed herein nor their relatives
‘South Auetabend Wluseum, Nerth Terrace, Adelaide, Seth
Atal alia,
possess characters lo place them in any ofthese three
species-groups. Positive identification of the new
species should be possible from the diagnoses und
descriptions given herein and supported by the
characters in Table Land Figs 12 - 1S. Distribution
maps of the localities oF material examined are
included,
Material
Collectors of manerial examined
AJMOA. J. MeArthur: AJP ALJ. Pootins ALY, AL.
Yen: AMM, A. M2 & M. J, Douulas; AML. A.M.
Leas AMA, A. N Andersen: APS. Aldgate Primary
School; AWE A. W. Forbes: BBL, B, B. Lowery;
BBS, S. Aust. Dept. for Environment & Heritage.
Box & Bulloak Survey: BPI, B. Pike: CL. C. Rekert:
CHW, C. HLS, Watts: CPC, Parkers DC D, Creevey:
DH. 2D. Hirst; DM. D, Merrill; DMR, D, Mackenzie:
DSS, 5. Aust. Dept. for Envirenment & Heriiage.
Deep Swamp Survey: EGM, E.G. Matthews: EML-
S, Aust, Dept. for Environment & Heritage, E. Mt.
Lofty Survey; PMR. Friends Mt. Remarkable CP:
FRS, S. Aust. Deph for Environment & Heritaye.
Flinders Ra. Survey: FSS. S. Aust. Dept. for
Enyironnient & bleritage, Fleurieu Swamp Survey;
GRC, G. & R. Churcher, GCM, GC. Medlin, GPC.
G.E Gross; GPU, G. Pint GUL, G. HH. Love: GK.
G, Kluske; GLH, G, L. Howie, GLU, Gluepot
Survey: GW.G, Weber: HAP. H. A, Potter: JEB. J. b,
Bromell; JOG, J, & D. Gardner, JAR J. A. Portest
JAH, J. A. Herridge; JIM, J) J. MeAreavey; JBE, J,
Berentson: JC. J. Clark: JOB. J.D. Erskine; JDM.
D. Majer: JDM, J. Hinkley: LPT. A. Saent Lvany:
JL, J Landsberg: IMU. J. Mugford: STH. J. Tharmer;
ITO. J, Torna, JWAL J, Wainer: KO, K Ottewell:
KSC. K. Schneider: LIA, L. Jansen; LWA, L.
Wetherill: MA, M, Adams: MGE, M. Gemmell
MLU. M. Ludewins: MTL, S. Aust. Dept Jor
Environment & Ileriige, Mt. Lofty Ra. Survey; MTY,
6 A. J. Me ARTHUR
M. Tyler: NSE, N. L. & S. J. Pargher: OPR. Operation Lillywhite; PMA, P. Magarey: RDR, R. D. Robinson;
Raleigh; PAL, P. Aitken; Pit}, S. Aust. Dept. for REC, R. E. Clay; RFO, R. Foster; RGS, Royal
Environment and Heritage Piyantjatara Lands Survey: © Geographical Soc. Bookmark Survey: RHA. R,
PJF. Po J. Fargher: PJMG, P. J. M. Greenslade; PLI.P Harvey; RHM, R. H. Mew; RHU, R. Hutchinson:
TABLE 1. Morphological characters of the new species, character states dre given in Tale 2 with relevant structures in Figs
1 & 2, Measurements were taken from type specimens.
Major workers Minor workers
Character r, .
- 2 e =
= & = e ‘5 = = son
s 3 #8 & 5 $ &€ & & =
Ss S ££ © F&F FS & S&S FS SF &F & EF
s o io) u u u U u wu U 1) u u wu
heal, sides st xt th «SRIF SRE est sth sti stm xt xt stip PxAr
head, vertex st sl sl sl x st st x x 7“ st x x {x
frontal carinae Ww wW w w n Ww W n n Ww W " W
clypeus, anterjor Vv ¥ V Vv v y v st x x y cr x x
clypeus, pilosity sp sp sp sp sp sp sp pl pl pl sp sp sp sp
clypeus, integument rt ghep ep tp Ip eltp gl h el h Ip Ip Ip gl
clypeus, carina di ab di di di in di di ab in in di di di
pronoium, dorsum x x fx fxm stim fx xX stm Xx sl Ix tka tx Ix
mesonotum Ix x tx x st x tx {x tx x tx Ix fs Tx
metanotum dio win win in w.di owadi in ab ab ith in ab ab in
propodeum, dorsum st x tx st st st tx v v v sl Ix st Ix
angle. © 135 in 35) 135) 100) 135) 1350 135) 140,w 135i 135 100) «135 120
dorsum /declivity 15 in 2 2 =<] 25 | 3 3 3 2 1 2:5 |
node. summit bt sh bt bt sh br sh xX x x bt sh x ht
node, pubescence pl sp pl pl ab ssp sp pl pl pl pl ab sp) ab
selue. pronoun 10 4 >30 6 - 6 20 10 4 >30 6 4 2 20
selae, Mesonolum x 4 =30 «10 6 6 20 5 2 =30 10 6 2 20
selae, propodeum 5 0 230 6 4 6 15 4 1 =30 6 4 ia (5
setae. under head 20 iS 330) 10 0 0) 15 1S 30 0 nt) 0 0)
setae, scape ada pl ad ado adin sp ad akin 45° ad ad addin 40°
setae, mid-tibia m ad pl ad ad addi 45° oad ad 45° ad ad add pl
color, head th th re-bk bk bk re-bk bk bk rebk bk bk bk oo re-bk =o bk
color, scape br rh ore-bk sobr yb th bk bk rb bk br yb rb bk
color, pronotuci be-bk orb ote-bk bk bk oo re-bk bk bk tb bk bk bk =o re-bk bk
color, mesenatum br-bk orbs re-bk bk bk re-bk bk bk rh bk bk bk ore-bk bk
color, propodeum br-bk orb re-bk bk bk ore-bk bk re rb bk-re bk bk ore-bk bk
color, node rb th re-bk bk bk ore-bk bk re br bk-re bk bk = re-bk bk
color. gaster br-bk orb sore-bk bk bk ore-bk bk bk br bk bk bk ore-bk bk
color, legs br vb) ore-bk br yb rb br bk rh bk br yb rb vb
head width mm 2k Wl? 3220 26 22 24 L& 12 O75 15 19 O95 L2. b2
head Jength mm 28 16 3.0 23 2.1 2.3 Ls 14 10 Lo L& 11 4 t2
pronotal width mm 20 14 21 #18 nS 01.5 125 Lis O8<.7) 13 Lo 95 LO LO
TABLE 2. Stares of characters in Table t.
ab absent di distinet n narrow sl mostly straight
ad adpressed tx flatly convex pl plentiful tr tapering to front
bt blunt Ip fine, dense punctations th red brown Vv concave
bk black el glossy re red w wide
br brown h hidden by pubescence rt reticulate 7 convex
cr crenulate in indistinct sh sharp yb yellow brown
cp coarse punctalions a margined sp sparse
NEW SPECIES OF CAMPONOTUS 7
C\ Frontal carinae
Clypeus
Tentorial pits
Nie), Head of Co fanci/eeies minor worker todicuting some
ol iis structure.
Mesosoina
Propdeiin doran
Vetsnoruin Anule
Mesenaiuin,
Hiren tuts re ‘an
dw ]iy uty
t tpt
Vorperden!
‘a
hig 2. Side view ar ¢
some Uf its structure,
fergusant major worker indivaing
Vie 3. Locales of
fergisen material examined
Riot, Riot South Australian Museum Expn.: RIB. R.
J. Bartell: RLE, R, Leys; RRO, R. Robinson: RSB. RK.
S. Bungey; RVS, R. V. Southcott: RWT, R. W. Taylor;
SB. S, Barker, SDS, S. Aust. Dept. for Environment
& Meritage. Sandy Desert Survey; SEF S. Aust.
Dept. for Environment & Hentage, S. E. Fauna
Survey: SEG, Scientific Exploration Group: SEP, S.
Aust. Dept. for Environment & Heritage, S. Eyre
Pen. Survey; SMI, S. Hinkley: SML.S, Aust. Dept
for Environment & Heritage, Sth. Mt. Lofiy Ra.
Survey; SOPS, S. Aust. Dept. for Environment &
Heritage. South Olary Plains Survey, SOS. 5. 0.
Shattuck: TG, T Greaves; THA, T Hands: TH, T
Herbert; TST, T Stegules: TSW. S. Aust. Dept. tor
Environment & Heritage, Tilley Swamp Survey; VS,
S. Aust. Dept. for Environment & Heritage,
Vertebrate Survey: WAM, Western Australian
Museum: WMM, W, M. MeArthur.
Abbreviations of collection locations
ANIC, Australian National Insect Collection,
Canberra, Australian Capitol ‘Territory; SAMA,
South Australian Museum, Adelaide South Australia,
Other abbreviations
CP, Conservation Park; NP. National Park.
Genus Cumponotis Mayr 1861
Characters that enable the new species to be
identified are shown in Table 1, states of characters
in Table 2, explanation of terms in Figs [| & 2.
Diagnoses and brief descriptions of each species
follow,
Camponotus fergusoui sp. nov.
FIGS 2,3, 12
Holotype
One minot worker pinned in SAMA. South
Australia, Ferguson CP, 34° 58'S 138° 39° E, 24th
Qet. 02, G, Weber,
Paraivpes
South Australia. Wolseley, 0.8 km WSW, 36" 22° S
140° 54’ FR, 15th Dec. 95, S. Aust. Dept, for
Environment & Heritage. Box & Bullowk Survey,
One mittor worker pinned in SAMA, two miner
workers pinned if ANIC,
Ofher material exqinined
Localities are shown in Vig, 3. South Australia:
Adelaide, AJM; Adelaide, PMA: Alpana 4 km W,
FRS: Angaston, JALIL Anstey Lill, CP: Bin Bin,
DSS; Bunyeroo Ck. JAF, Carisbrook Res... AJM
PJF; Chain Of Ponds, SB; Conmurra 4.4 km N. SEF;
Coolinda, JMU; Dunggali CP, REC; Frances | kin
M
(80
5
Bat)
"54
Bs
@ O40
:
2 920 CL sponsorium
=| | ad
5 aC longifacies
00
1 es)
Head width mm
(1.60 180
hig 4 Graph showing workers of Cl leneifageies lave
hurrower frontal caringe than warkers of C) sponsorun.
Defmitton af terms is given in Pig, |.
hig 6, Localities of C fonvifacies material examined.
NNb, BBS: Gawler 7 km NbyW, GPG; Gluepot,
SEG; Goolwa tint W, RVS: Melrose, OM; Monarto,
LIA; Montacute, LdA; Mt. Compass 21 km ESE.
FSS: Mundulla 5.6 km SSW, BBS: Murray Bridge.
MLU;: North Adelaide Parklands, DG; Paney, SEP;
Pinkawillinie CP, JAF; Pooginagorie 3,7 km NE,
BBS; Scott Ck.. THA: Sevenhill, BBL; Strathalbyn,
RRO; Summerfield 2.5 km SW, EML: Teatrick,
BBS: Tepko LS km SW. EML: Upper Sturt, JATL
Victor Harbor, SEG, Wattle Institute, AJM RSB:
Warraweena 3 km SSW. SEG; Wolseley 2.8 km
WSW. BBS. Victoria: Ararat, GPE, Walpeup, ALY.
Worker diagnosis
Similar to ©. chaleeus (Crawley 1915). Minor
workers distinguished by a covering of very fine
dense white pubescence covering the reticulate
integument whereas in CL chaleeuy pubescence 1s
sparse, integument finely punctate: both teostly
ALJ MeARTITUR
200
5
& 1.460
3
oy
Gq
3B 120
8 x CL sponsornm
= ( Jongifacies
OBO
Loo 1.50 200
Head width oom
O50
ig, 5. Graph showing minor workers of C. longifdcies have
longer heads than CL sponserum but the opposite prevails
in major workers. Definition of terms is given in Fig. b-
black. mesosoma usually with some red: propodeal
dorsum concave,
Worker description
Major worker. Head sides straight, weakly tapering
to the front, vertex straight; clypeus with a few fine
long setae, without pubescence; weakly projecting
forward, anterior margin evenly concave: metanotun)
a distinct furrow; node parallel front and back,
summit blunt; propodeal spiracle clongated:
mesosomia and node covered with white fine short
jdpressed pubescence.
Minor worker. Head sides straight, tapering to the
lront, vertex convex; clypeus anterior margin median
section wide, nearly straight, projecting forward,
dense pubescence nearly hiding the integument:
pronotum, mesonotum and half propodeum form an
even convexity; node with a long flatly convex
summul, Also see Table |,
Biology
Minor workers observed leaving and returning, to
nest during the day. The heads of major workers were
sometimes. observed blocking a nest enttance in
heavy soil (G, Weber pers. comm, 2003).
Etymology
Named after Ferguson Conservation Park, South
Australia,
Camponotus longifiacies sp. nov.
PIGS 1,4, 6,13
Haloivpe
One minor worker pinned in ANIC, New South
Wales, Narrandera 30 mi. W, 34° 45° § 146° OF,
29th Aug. 76, B. B, Lowery.
NEW SPECIES OF CLMPONQTUS 0]
hig. 7 Localities OFC. paniseuy aniterial examined.
Paratypes
Two minor workers and two mujor workers pinned
in ANIC und SAMA, From same locality.
Ofer material examined
Localities are shown in big. 6. New South Wales:
Berrunm Stue Forest. BRL; Condobolin, BBL:
Trundle, BBL. Queensland: Mt. Isa LOO) ki NW,
BBL. South Australia: Attunga, BBS: Belair, RITM:
Cumbrat. J TH; Chitunces Lme. GPG: Dangyali CP.
KSC: HWintyitya 26 km SSE, Pity; Mt. Lindsay 0.5 kni
W. Pigs Nappyalla t kin W. RDR: Radium ERIE PSs
kn S, PAL: Salisbury, AJM: Tomahawk Dam 3 kin N,
JAF: Vokes HUE &E kin S. SDS; Western Australia:
Byford, BBL, Lake Marmion, JAF. Mt. Whaleback,
JDM,
Marker iiagneasis
One of the smallest Camponcns. similar to C
spolserual (Forel 1910), Distingutshed by the
closely placed frontal carinae shown in Fig. 4 and by
(he long tice in minor workers although mterestinely
the face of major workers is more squire ay shows in
Fig, S: clypeus i major workers wiih deep wide
tentoriil pits, mid section of elypeus is rarwsed up
between tentorial pits into u fatash plain above
cheeks bounded by two longitudinal ridges. without
cuyina. elypeus anterior margin has a deep central
coneuvily bounded by two small teeth, whereas in ©
spomserun major workers clypeus not ratsed up, mul
section of anterior margin convex with a weak
central concavity and distinet carina.
Worker desevipiton
Mayor worker, Mesosomea
conveaily, propodeum angle
summit, pointed in all directions.
forms an
indistinet:
even
node
Minor worker. Head sides straight tapering to the
front. pronotunt und mesonotum form an even
vorverity: node elongate, summit blunt; propodeum
angle wide. Also see Table 1.
Biology
B. B. Lowery inscribed on Tabel “Nest in sandy
soil, pasture and Calliteis, neat crater”,
hivinoloay
So named beenuse of minor worker's distinctly
long face,
Camponotus pawseyi sp. nov.
FIGS 7. 14
HMoloivpe
One miner worker pinned in SAMA, South
Australia, Canunda, 37° 39'S 140° 160 Ee, P8th Jon
91. C.K. Paysey,
Paratype
Chree minor workers and two mayor workers
pinned in SAMA and ANIC. Fron same locality
Other malerial examined
Localities are shown in Vi, 7. New South Wales:
Condobolin, BBL: Matakana 7 miles N. BBL;
Trundle, BRL. South Austraha: Arkaroola, FRS:
Beachport, AJM: Bin Bin 7 km SSE, DSS;
Blanchetown, GFG: Bordertown TS hin W. AJM:
Burks Is.. AJM: Calea. BBL: Calea 5.5 km NNE-
SEP; Calperum, GCM: Cambrai, PIMG: Chaunves
Line, GEG: Culburra, RVS; Custom 1.2 kin SE, BBS:
Danggal) CR KSC: blein Lane. AIM; Ferries
MeDonald CP AJM: Freeling Heighls 6,8 km ONE.
PRS: Gummon Hill, ERS: Gammon Hil 5.7 SSP.
PRS; Gluepot, DMR: Gluepot 14.3 km WL GLb:
Gluepot Res, GLU: Goolwa | miles W. RWS:
Hlumbidpe CP, GPG: Mideaway Tub 10.5 km SW.
SOPS: torn Camp 0.4 km W, ERS: Katehalby WH,
SEP: Lake Gilles CP JAP: Lake Gilles CR JAF DEL
Lake Gilles CP, THA: Loxton. AJM JDL: Mary
Seymour CP RIU: Mawson Plateau, THA: Melrose.
DM: Mintipa 20 miles NW, AJM: Moorundie. GRC:
Morgiwt § miles SW, BBL> Mt Rescue CR JAP
hOM: Munyaroo CR GPG: Murray Bridge 6 miles
W, PAL GPG: Nullarbor Caves, PAT, Nulungery 7
miles NW: Oodla Wirra, RIT: Plokawillinie CP.
JAF DI: Pinkawillinie CP JABS PL Linvoln 13.2 km
ESE, CiKS Rudall, GFG; Rossel Camp, SEE: Sinchir
Ciap. SB, Telowie 4km ENE, PRS: Tomahawk Dain
3 km N, JAP, Wolseley 3.2 ki) ENE. BBS} Worlds
End 3 km E. SOPS: Allivator Ch, PIMG: Blinmatt
10k NW. PUMC: Cambrai. PIMG: Cumnrns 4 kin
S. PIMG,; Fairview NP PIMC: Gamback Park, VS:
Innes CR PIMG: Kadina [0 kor S. PIMG: Lance
i) A.J. McARTITUR
Pig. 8. Localities of C. pitjantjatane matenal caumimed,
Bore 3.4 km W, FRS; Mambray Ck., PJMG;
Moockra Tower, PIMG; Murray Bridge, PAT: Murray
Bridge 15 km NE, MLU; Napperby, PJMG;
Poochera, RWT RIB; Pt. Kenny, TG; Pt. Lincoln 3
km E, PJIMG; Sandford Dam 2.5 km N, JAF;
Teharkuldu Hill § miles E, PIMG: Waddikee 6 km FE,
PIMC: Waikerie, BBL: Warden Hill, FRS: White
Dam, AJM MA, Victoria: Bolangum Flora Res.. SHI
PLI; Dimboola, AJP: Hattah [5S km SSE, ALY:
Hattah 19.2 km SW, ALY; Heath, BBL: Millewa
South Bore 3.7 miles N, ALY; Mt. Bolangum. ST:
fatho, HAP. Western Australia: Armadale. LWA;
Beverley 70 km W, AMM; Bickley, BBL: Boyup
Brook, AJM WMM; Cape Arid NP, AJM SB;
Darlington, AJM WMM; Kambalda 35 km $, JAF:
Lake Leschenaultia, SOS: Madura 41 miles E, TG:
Norseman, BBL; Perth, LWA; Ravensthorpe, BBL:
Serpentine NP, SOS; Wagin, CHW.
Horker didanosis
Minor worker similar to C. fasmani (Forel 1902).
Distinguished by its uniformly convex vertex
Whereas in CL fesmani ib is straight. In all other
respects, sintilar to C. tasntani.
Worker description
Major worker. Forehead swollen; anterior head
(side view) weakly truncated, clypeus coarsely
punctate with a distinct carina, anterior margin
median section projects with a central concayity:
mandibles striate: propodeum dorsal surface flat:
node sunimit blunily pointed; whole ant covered with
plentiful erect setae! colour variable between black
and red.
Minor worker
Head sides straight, eyes near corners of head,
hig, 9, Localities of C. rueis material examined.
clypeus anterior margin projecting convex crenate: 7
or & teeth; whole ant covered with plentiful erect
setae, pubescence hiding integument; propodeum
dorsum deeply concave: node summit convex: colour
yanable between black and red, Also see Table 1.
Biology
Nest in ground, AJM has observed major worker's
head blocking the entrance. soil excayaled from nest
never seen near entrance. sometimes upper portion of
entrance shatt lined with silk.
Etymology
Named after C.K. Pawsey, a naturalist from
Millicent, South Australia.
Camponotus pitjantjatarae sp. nov.
FIGS 8, 15
Halotype
One minor worker pinned in SAMA. South
Australia, Mt. Lindsay 6.4 km W, 27° 02' § 129° 49!
b, leéth Oct, 96, 8. Aust. Dept. for Environment &
Heritage, Pitjangatara Lands Survey.
Faraivpes
One minor worker in SAMA and two minor
workers in ANIC pinned, From same locality,
Other material examined
Localities are shown in Vig. 8. Northern Territory:
Alice Springs 30 km N, BBL: Kunoth Pdk, JWA;
Uloru, JWA, South Australia: Maryinna Foil 11.5 km
SSE. Pi; Maryinna nll 9 km SE. Pig; Cheesman Peak
4.7 km NNE, Pit); Mt. Lindsay 44 km W, Pitj: Mt
Woodroole, Pig. Westem Australia: Mt. Willoughby,
JAM; Goldfields Rd.. WAM: Mt. Gibson, RLE KO.
NEW SPECIES OF CUMBONOTUN a)
Horkor diagnosis
Simikir to ©. faflatus (Lubbock 1880), Miner
Workers distinguished by mostly straight sides and
vertex of head forming a triangle in front view:
absence of erect selac on underside of head whereas
©. inflaius bead sides are conyes with plentiful long
erect setae on underside of bead and elsewhere.
Horker description
Major worker head sides mostly convex, clypeus
anterior murgin. projceting. convex with a weak
mediin concavity, node summit blunt: metanotum
wide shallow indistinct,
Minor worker, Head Iriangular, sides strught, node
parallel front and back, summil conver: scattered erect
setae on front of head, mesosoma, node, gaster, none
on scapes and legs: pronotunt feebly margined in front:
pronotum and mesonotunt for a uniform convexity:
propodeum dorsum straight, Also see Table 1,
Liv nnlogy
Named afier the Aboriginal inhabitants of the
Musgrave Ranges in the north of South Australia
where the ant is found.
Camponotus rudiy sp. nay,
FIGS 9, 16
Hoalarype
One minor worker pinned in ANIC. New South
Wales, Condobolin, 33° 05'S 47" 00°F, Eth Jan.
67, B. B. Lowery,
Peereriypres
Two minor workers pinned in ANIC and SAMA,
From same locality.
Other material examined
Localities ure shown in Vig. 9 New South Wales:
Bilpin, BBL. Northern Territory: Bullita, ODR.
South Australian Bucks Canyp Well. RGM JAF;
Clare, JIM: Ravine Des Casoars, PIMG: Safari,
TSW: Streaky Bay. JIM: Western Ri, GPG: Yorke
Pen. JJH. Western Australia: Esperance. BBL;
Esperance 40 km W. BBL) Mt.Whaleback. JDM:
Mundaring, Weir, GIL; Ravensthorpe, BBL.
Worker ciagnasts
Similarto ©. /owwe? (Forel 1895). Distinguished by
finely and densely punctate integument whereus in
Cc. lawne! it is mostly finely reticulate: with 5-10
erect selec on underside of the head and propodeum
whereas C. fawnter has
propodeum is longer than the dorsal surface, in both.
Horker deseriplion
Major worker, Head sides and vertex mostly
10. Declining surface of
Fig. 10, Localities oF C seared material examined,
stright; clypeus anterior margin median section
forming two projecting lobes with a coneavity
between; metanotum very wide.
Minor worker. [lead sides straight and mostly
parallel, vertex rounded, eyes placed at posterior
third oF the head: clypeus with a few long ereet setac,
sparse pubescence, unterior margm projecting
convex; mesosoma dorsum evenly conver,
propodeum angle in rear view very narrow. Also see
Table 1,
Etymalowy
So named becuuse of the fine dense punetations
from Latin rudis: rough, unpolished.
Camponotus scotti sp. nov.
FIGS 10, 17
Holotype
One minor worker pinned in SAMA, South
Australia. Scott Ck, CR 35° 04° S 138° 42" EF. 12th
Dec, 99,1) Hands.
Paratypes
[hvee minor workers pinned in SAMA and ANIC
South Australia. Jupiter Ck, 35° 09'S 138° 40’ &,
(Oth May. 93, A, J, MeArthur & $.O, Shuttuck.
Other material exantined
Localities are shown in Mig, 10. South Australia:
Woakwing Ra, AJM; Yumali § km 5S, AJM:
Adelaide, NBT; Aldgate, BBL; Aldgate, APS:
Ashbourne, RRO: Baros Reservoir, MTL: Beachport
Jackies Walk. AJM; Belair, AJM; Belair, BGM JAF;
Belair, GEG: Blackwood, MTY GPG: Bradbury,
JMU; Bridgewater, JEB; Bridgewater, PIMG, Brown
Hill Ck.. DM; Coorong NP. PIMG, Cortina, AWP:
12 A.J. MeARTHUR
Fig LL. Localities Of. saipsene inalerial exanuieds
Crafers, RVS; Echunga, AJM: Ferguseu CP. AJM;
Fensuson CP, GW: Gawler Heysen Trail, AJM,
Gemmells, RRO: Jupiter Ch., AJM SOS: Lirabenda
Mylor, AJM PJF; Littlehampton, JTO: Malinongy
hekerts Serub, CE; Mambray Ck, AJM: Marble Ra.,
Gri: Melrose. AML: Millewa. NSF: Moriahta.
SML: Mt. Ela 2 km SSW, MTix Mt. Lafly, AJM
PIP: MtLotty, RIDA; Mt. Lofty Golf Club, THA,
Mi.Remarkable, PMR: Nuriootpa 5 kin NJ MCh:
Orroroo 12 km SSW. PIMG: Parawa, SEG; Pelican
Lugoon, DIY Quorn 13 km S. PIMG: Renmark,
AIM: Roeky Ri, OM JAF, Seott Chi, AIM:
Sevenhill, BBL, Taylorville, ROS; The Bh Talyala,
GLI Victor Harbor @ miles NL BBL: Waite
Arboretum. AJM RSB.
Harker cliaenoyis
Slightly similar to C\ farieed (Forel 1902) and ¢.
mex (Porel 1902). Distinguished by short white
semicircular setae on propedeum dorsuoy in side
view. underside of the head seapes and tibiwe licking
erect selec, spurse creet setae on head, mesosomu,
node dnd gaster, front of head finely and shallowly
pubetate otherwise finely rebeulate, frontal curinac
wide, propadeum dorsum stright, limbs and scape
red brown otherwise colour variable from red to
black often in patches, node parallel fore and alt,
summit blunt: polymorphic. Also see Table 1.
Worker deveripuion
Mayor worker, Metanotum a shallow transverse
notch in largest major workers but fading in sinalles
workers, head wider at the back, vertex stranht,
unterion clypeal margin weakly projecting wilh two
lobes on either side ol a shallow concavity, frontal
carinae wide elypeus coarsely punenite.
Minor worker, Head sides near paruleL vertex convex.
aiterior clypeal margin projecting evenly conver.
Biola
Often found foragin on tree trunks duritiy die dary,
nest in ground,
Eiymoloey
Named alter Scott Ck. CP where the ant was tirst
recounysed.
Camponotus simpsani sp, Nov.
FIGS 11,18
Holoiwpe
One minor worker pinned in SAMA. Western
Australia, Cape Wellington, 15° 09" 8 124° 505 1,
2hh Aug. 99, Riot Seuth Australian Museum
Expedition,
Paraypes
Miree amor workers pinnedain SAMA and ANIC.
From same locality.
Other material examined
Loealities are shown in Fig, Lb. Australian Capital
lerritory: Bhick Mountain, BBL. New South Wales;
West Wyalong 23 miles W, BBL. Northern Lerritory:
Darwin, SOS, Queenshind: Mingela, BBL,» Warwick
30 ki 8, PMG: Waverley, ANA JL. South Australia:
Lake Gilles CP 32.568 13646, JAF DI, Breukneek
Ri. PIMG: Calpatanna WIL, JAP; Cambrai 25 kin F,
IDG, Cambrai 32.2 kin EL TST; Ceduna, JAP
Ceduna 20 km &, JAP; Boulass Serub, JAF LGM:
Freeling Heights 2.8 km NNE, PRS: Gluepot. GLU:
Kurralingas. THU: Luke Gilles CP RLE: Mt.
Remarkable NPL PRS; Munyaroo CP IBE; Maserave
Ra, Pitty Pinkawillinie CP JAF: Poochera, RFO BPI:
Poochera Jl km FL RIBS Roeky Ri. PIMG;
fandanya. FRI: Telowre CP PRS. Victoria
Inglewood, JUL. Western Australia: Armadale, LWA:
Cape Arid SPO AJM SB, Coronation Ts,, Riat: Faure
Is. JAP, Mundaring Weir IC,
Horker HMagnosis
Similar ta ©. dewnrer (Forel 1902). Distinguished by
the ubsence of Jong erect setae on the underside of
the head; reduced numbers of long ereet setie on all
other parts. In both, propodeum declinine surliee
longer than the dorsal surlice; integument mostly
Finely reuculate; black, lews lhter,
Horker deseripiin
Major worker, Head sides musthy straight and
paraiich clypeus unterior margin projects forward.
medkin section deeply coneave, bounded by two
teeth.
Mitior worker, Mead sides staivht tapering. lo be
front, yerlex convex, eyes close to corners; clypeus
wide, frontal margin uniformly convex, projecting
NEW SPECIES OF CAMPONOTUS 13
Fig. 14 C. pawseyi sp. nov Fig. 15 C. pitjantjatarae sp. nov
Fig. 16 C. rudis sp. nov Fig. 17 C. scotti sp. nov
Scale lines = | mm
Fig. 18 C. simpsoni sp. nov
14 A, J, McARTHUR
forward: node high, short longitudinally, summit
blunt: mesosoma dorsal surface forming an even
convexity. Also see Table |.
Biology
Nest in ground.
Etyvinvlogy
Named after Antony Simpson a benefactor of the
South Australian Museum,
Acknowledgements
This work has been made possible by grants trom
Australian Biological Resources Study, the support of
the South Australian Muscum and CSIRO Entomology.
The South Australian Department for Environment and
Heritage Biodiversity and Monitoring Section provided
many of the specimens for study. Special thanks are due
to S, O. Shattuck, J. A. Forrest OAM, and E. G.
Matthews and to Annette Vincent for the drawings.
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Noe, 8, dnst, 126, 63-90,
THE WATER AND SALT BALANCE OF THE RESERVOIR
CATCHMENTS OF THE MOUNT LOFTY RANGES,
SOUTH AUSTRALIA
By A. S. KAYAALP! & J. A. T. BY?
Summary
Kayaalp, A. S. & Bye, J. A. T. (2002). The water and salt balance of the reservoir
catchments of the Mount Lofty Ranges, South Australia. Trans. R. Soc. S. Aust.
127(1), 15-26, 31 May, 2003.
This study was made possible through a new observational programme, which
determined the chloride and sulphate rainfall accession, and access to the monthly
data files for the reservoir systems 1n the Mount Lofty Ranges during the period 1985-
1996, together with the statistics on borewater and farm dam irrigation. The principal
result is that 27% of the salts input into the reservoirs arises from borewater irrigation,
38% is due to groundwater (salinisation), 20% 1s pumped from the River Murray, and
15% originates in rainfall. This budget indicates that irrigation has a major negative
impact on the Adelaidean water quality, independently of the negative impact of the
River Murray water, which is usually emphasised. An adequate programme of
monitoring borewater irrigation is required to test this conclusion.
Key Words: Catchment water budget and salt balance, Mount Lofty Ranges, South
Australia.
Trensartions of the Rowe deci ofS, Anse (2003), 127 (1), 15-26,
TEE WATER AND SALT BALANCE OF THE RESERVOIR CATCHMENTS OF THE
MOUNT LOFTY RANGES, SOUTH AUSTRALIA
by AJS, KAYAALP! & I, ALT, Bye?
Summary
Kayvaate, WS. & Bye J. ALT. (2002). The water and salt halunee of the reserver culehments oF the Mount
Lally Ranges, South Australia. Tres, Ro See Stayt, E2701). P5262 31 May, 2003,
This study was ade possible titough a new observational progmimme, which determined the chloride and
sulphate rainfall accession, and aecess to (he monthly data “les forthe reservedr sysiens in the Mount Lofly
Ranges ducing the period 1955-1996, together wilh [he stiwistics on boreweler qed Rar dan irmabon. The
principal vesult is thac 27% of the salts input inte the reserveies arises Trout borewater imitans 380e is due to
eroundwiter (sulinisation). 20% is pumped fromthe River Murray and (5% orminates fi caintall This bidet
indicates that Weiwahon has a major negalive impach on the Adelaide water quality, tidependently of the
neaeative impaclot the River Murray water which i usually cryphaemed An adequate prowranyinic OF Monit tie
borewaler innigation is required io test this conelusion,
Key wokbs © Catehment water budget and salt balanee. Mount Larty Ranges. South Australie
Iniroduction
The Mount Lofty reservoir catthments are situated
in (he mounttin range inland from the Adelaide
plain, South Australia, and supply water tor the State
cupnal, Adelaide. Understanding the water and
soluic balance is essential to assess the history ol
salinisation, and to prepare for future development.
In this paper we address this importint suc using
volume and salt balance techniques, applied to eaca
reservoir cuchiment.
Before the onset of agriculture in the pristine
cHyioament, cat fiver systems discharged jit
Cull St. Vincent from the Mount Lolly Ranges, Five
of these river systems (the Onkaparinga River, the
Myponga River. the Torrens River, the Gawler River,
and the Litde Para River) have been subsequently
chimmed lo create water storaves (Pig. 1). and liree ol
these river systems (Dry Creek. Brownhill Creek and
Sturt Creek) have been significantly modiGed. but
shill discharge, epysodicnily, essentially as
Slorimayaler conduits.
The existence of the five reservoir catehments
cnubles the contemporary volume and sal{ balance to
be delermined, and by inference, compared with the
pristine environment and also allows an assessment
to be made ofany likely chinves in water quality due
10 future development.
The relevant natural parameters of the reservoir
citehinents, Which account for the water quality ia
) Selma ol Cheynistey, Physics aod Bortly Seienees. The Plirnters
Liliversily ab SOUT ASO at GPO Bos 2H Agee. AA SOO.
Australia
Covent adress: Pasminge, Port Mire South Auseutia Sa
NUstlil bial Royadlpa le piste con aul
Sehoolol Hach Scumess, The biiversuy of Melbourne, Vicrorna
WTO. Austin
(he pristine environment are rainfall and
cvapotramspiration, supported by groundwater
recharge/discharee, In the developed state, the water
quality is also controlled by ittigation disebarge and
pumping from the River Murray.
The Natural Faviranment
In this section, we brietly review the hydrogcolowy
ofthe Mount Lolly Ranges, which is responsible far
the groundwater discharge. und the meteorology of
the Mount Loiiy Ranges, whieh determines. the
rainfall aceession.
Hydrogeology
Phe Mount Lofty Ranges are considered to extend
from Cape Jervis to Mount Remarkable and consist
mainly of Adelaidedn sediments, highly inet
morphosed in places. Lower Proterozoie rocks occur
over relatively small areas near Inglewood, Alduate
amd Yankalilla, Sebists and yneiss, with augen
gneisses and metaquartvite are exposed in the
Adelaide bills in sinall aeeas south of Uraidhe arid
east of Ballomnah, Phese rocks constifure (he
erystuling busenicnt. In many places the forks are
deeply weathered or have undergone retrograde
metamorphism, As a result they usually have a low
permeability (Shepherd 1976).
Groundwater in the Adelaide region, vecurs within
two main geological enviroments, fractured rocks
and sedimentary basins, The main part of the
Adelaide hills (whieh includes the reseryour
calchmenis) is made up of fractured rocks, I this
environment. the type of rock and degree to which i
has been fractured by geological processes governs
(he dmount of water that cun be stured, Water within
fractured rock circulates alone fissures. and fults,
and its presenee can be very difficult to predict, Phe
IG A. S. RAYAALP & JOA T. BYE
I3K°E
T
Gawler River
*
.
.
.
Torrens River
o
ADELAIDE
e
se aeett®
Onkaparinga River
139°E
MANNUM
MURRAY BRIDGE
Fig, L. The reservoir systems of the Mount Lofty Ranges. South Australia. B Barossa, 1 Happy Valley, HY Hope Valley,
KC Kangaroo Creck. LP Little Para. M Millbrook, MB Mount Bold) MY Myponga, SP South Para. Wo Warren
reservoirs. ma Mannum-Adelaide, ino
main groups of fractured rock aquifers are, the
Barossa Complex, the Adelaide System and the
Kanmantoo Group (Selby 1984).
Sulimsed soils in the Mount Lofty Ranges have
developed as a result of native vegetation being
replaced with pastures, afier which groundwaters
have risen and mobilised salts. The mineralogical
and chemical processes associated with the
formation of salinised soils have been investigated
by Fitzpatrick et al (1992) Deeply weathered soils
containing, large amounts of stored salt are found
adjacent to younger, shallow soils (hat release sall as
they form. Two main groundwater systems occur in
these catchments: a perched water table develops
between May to October on the shallow bedrock,
and permanent localised groundwater occurs in
deeply weathered parent material and fractured rock,
Murray Bridge-Onkaparinga . ss Swan Reach-Stockport pipelines.
Salt release occurs in winter when groundwater in
upslope positions is recharged by [resh rainwater, see
The annual aceession cycle. This fresh water dilutes
the salty water in down slope positions thereby
aclivaling the weathering-salinisation process.
During Summer, salt concentrates in the
groundwater by capillary rise and evaporation, and
erystallises at the soil surface in saline scepage areas
and croded patches.
Meteorology
By comparison with other Australian cities,
Adelaide is the driest capital, with the least rainfall
and the lowest relative humidity. February is the
hottest month with an average mean maximum
temperature of 29°C and a relatrve humidity of 40 %o,
and July is the coldest month with an average mean
THe WATER & SALT BALANCE EOP THLE RESERVOIR CATCHMENTS OF THE MOUTH LOFTY RANGES 17
ininimum temperature of 7°C and a relative hurnsdity
of 76%. The anmial ruinfall mercases. trom about
$00 min on the Adelaide plains, up to aanaximun of
aboul 1200 mm on Mount Lotty. ti the five reservoir
catchments, areal average raiolall varies from a
maiximum of 890 nt in the Mount Bold reservoir
catchment, to 710 min in the South Para reservere
ealchment (fable 5),
The general rainfall pattern shows a broad Winter
muximunr berween May and August due to the fairly
frequent oceurrenees OF unstable moist westerly air
musses, During the Summer months, oecastinal
heavy ramlall occurs, offen associated with nurth-
west cloudbands originating in the tropical Midian
Qoewin, however, the high rate of evaporation implies
thatthe Summer rains, generally, are pot elective for
wertcuiture,
Severe weather events inelude snowfall which
occurs inthe Moant Lotly Ranges on averipe once
per year, and localised Nooding events associated
wilh mtcnse ruimtull ( Bureau of Meteorology 2001)
Mothuidology of the water ane salt bedanee snd
‘The min purpose of this paper ts 10 present the
annual salt balaice for the reservair catehments of
the Mount Lofiy Ranges. The analysis is based on
moothly mean records af the various quantifies in the
mass und salt budgets aver the period ( 1985 — 1996),
The resulls Were processed to give the ainual mean
values. and also the monthly mean annual evele
(Siyialp.2o0ty. Although the main locus is on the
annual balances. the annual cyeles will also he
sumimansed, as they provide a physical insseht into
the mechanisms which maintiin the annual balances:
The warner uad salir hudeews of rhe reservoir
CUtChMnents
Railull os the matin driving foree of ihe
hydrolowiealeyele and alsa the major water inpul te
the catchment. Another important taput te the
salehment area is groundwater pumping for
irrigation. The reservoir culehment water volume
and. Salt bilunces, can be written as follows,
dWidt= P Q iQ -Q, -Q., (1)
dsl PC + 1), FQ E +O £ -)) , (2)
where QO, is runol, P is preemiation..Q, is irrigation
volume due to borewater, Dy is the dry ehloride or
sulphate accession, Q,, is the groundwater discharge
(QO, > U)-or recharse (O,, < 0) and Q), is the
evapolranspiration (including, «small contribution
Kayailp AS42001) Appheation oil! caiilill chemiste aa
imote Ha dai to lydroleueal modeling, Vid thesis. The
Hlindigs Vintversiy bP Seuth Muastraha. 274 pp (fb npub)
trom free waler evaporation }, Cy, Cy, Cyand Cy, ure
the chloride of sulphate concentrations in runoelt,
berewater for irrivation. preeipilalion. and
vroundwiter respectively, and W oand 8S are
respectively the groundwater volume and silt
storage, Lgas.(1) and (2) haye beet solved to obtain
the vroundwater discharge (Q,). and groundwater
uccvssion (Q,,C,,) using, (1) Q) and O,C, obtained
from the reservoir mass and salt balance, (ii) the
aceession (Po and PC)) obtained trom raintall
chemistry dita. and (ai) the irrigation accession (Q,
and Q,C\).
Th the analysis, itis assumed that the annual mean
budget over the recard period is i steady-state
bulanee such that the rate af storage of groundwater
volume, dWidi 0, and the rate of storage ol
groundwater salt. dSidt 0. see firey ctl
vartahiliiy. This assumption enables the annual
evyelus. based of mouthty mean values. in whieh
dWidt and dS/dt are very importint lactors. also te
be computed. We present. firstly, the varias
components ol the amual mean budget it Tables: |
6, and then show the annual eyeles in Pigs. 3 5.
The essential data sets
The reservoir catchmeai runot! and salt bafairce
This data set consisis of monthly chemistry anc
low records over the penod January 1985-
Aveember 1996 for the five Mount Lolly Ranges
reservoirs of Teseby oll systenis (big, |).
G) Meunt Bold reservoir (catehment
seb kar)
(a) Myponid reservoir (catchment weal | 24 kin),
(al) Torrens reservoir system, which aneludes (he
Millbrook. Kangaroo Creek and Hope Valley
resetvuirs, (catchment areca: 323 kim).
tiv) South Para reservoir system, which includes
Warren atid Barossa resetyairs, (catehiient
area: 416 kine).
(v)) Little Para reservoir (catchment area: 82 kim"),
ared:
whieh were obtained from the Department of
Environment, Hentage and Aboriginal Attias
(DEMAA) and the Austealnin Water Quality Contre
{AWOC),
The mass und salt balance for each reservoir (or
reservair system) have been calculated from budvet
equations which take into avcount the effects of
supply regulation throngh cutehment iallaws. and
outflows and the change of storage, where the inflow
is due to mitural eatehiment cunoll (jive liding raurtall
directly onto a reservoir) and water (eansterred [ront
other calchmenis ind from the Murray River by
pipelines. and the outlaw is due to evaporaben,
Waller WonsuMplion. water transferred to other
18 A.S. KAYAALP & J, A, T. BYE
TABLE 1. Antal ranetf, mean Cl and SO, concentrations ane salis accessions,
'RunotP Mean Cl Mean SO, cl SO,
(MI) (mg/l) (mg/l) Accession Accession
(t) iw)
Mt Bold 83 160 9L 680 119.1 20.7 9900 1896
Mypongs 18 480 98.0 14.7 1812 271
‘Torrens 53 160 53 640 126.5 28.0 6720 1500
South Para 29 640 30 960 72.4 10.1 2148 313
Little Para 8652 9816 [32.0 11,7 1141 15
‘using the River Murray pipeline chloride data set
* using the River Murray pipeline sulphate data set
TABLE 2. Animal rainfall, mean Cl and SO, concentrations and salts accessions.
‘Rainfall? Mean Cl Mean SO; cl SO;
(Ml) (mg/l) (neg/l) Accession Accession
(t) (t)
Mt Bold 343 031 364 643 4.0 0,83 1380 304
Myponga 96 462 4,7 1.04 456 101
Torrens 249 231 255.439 3.9 0.84 972 214
S.Para 294652 303 816 3.9 0.83 1140 231
L. Para 59639 60 107 2.6 0.56 156 34
‘and - as for Table |
TABLE 3. Annual irrigation, mean Cl and SOs borewater concentrations and salts accessions.
Irrigation! Mean CP Mean SO,- Cl SQ,
(MI) (me/l) (mg/l) Accession Accession
(t) (t)
ML Bold 10099 303 58 3060 SkG
Myponga 1179 363 39 428 46
Torrens 5045 G05 87 3052 439
South Para ¥ 502 55 - -
Lute Para 283 835 84 236 24
“not available. 'J.Kneebone (personal communication), *S.Barnett (personal communication)
TABLE 4. Farm dam capacities and evaporative fluxes, and borewater and jarm dam annual irrigation.
Farm dam Farm dam Borewater Farm dam
capacity (MI) imigation (MI) Irrigation (MI) evaporation (MI)
Mt Bold 6300 1183 10099 SUT
Myponga 560 80 1179 480,
Torrens 3600 735 5045 2865
South Para 1100 162 - 938
Little Para 280 25 283 255
TABLE 5. Annual groundwater accession and evapotranspiration.
‘Groundwater? Accession 'Ground— Ramifall 'Evapo-*
(Ml) (t) water (inm/d) (mm/d) lranspiration
D D Cl SO, (mimn/d)
Mt Bold 18020 17337 S460) L006 O13 O42 2.44 2.05 2.14
Myponga 2556 3178 9IX 124 0.06 0,07 2.15 1.82 1.83
Torrens 4456 9733 2696 X47 0.04 0.08 2.12 174 184
South Para - - - - 1.94 ~
Little Para 898 672 749 57 0.03 0,02 1.99 1.74 1.71
‘und? as for Table |
THE WATPRAY SAL BALANCE OF TITHE RESERVOIR CATCHMENTS OF TILE MOUTH LOFTY RANGES [9
LAND 6. Consolidated aimnual reservede worer end salt bulunves.
Volume Chloride Sulphate Sum Mean C| Meun SU,
(Gh) (kr) (kt) (mg/l) (my/l|
Runolf 100 21:7 4.1 25,8 112 20
Ryinfall 162 4] 0.9 5,0 34 O83
Irrigation 7 7.3 Ll Kt 419 65
Groundwater 29 10.3 2:1 |2.4 384 60
Livapotranspiration 91 - - - - -
River Murray 41 3.5 \.1 4.6 135 37
‘Note that Volunie is the mean of the Chand SO, budwet determinations, | GEO" 1.
catchments and reserveir spill. These processes can
be represented by (he (nass balance equation.
AV=Qy" Op -Qy-(E-P)A @)
where Q, is tubotl Qy is the water transterred frorn
Ihe Murray River pipelines, Q, ts the outflow. Fas
evaporation, fis rainfall. A is the surface area of
reservar, and AY is the change in storage. Eqn (3)
fissiimes i) standard reference density. The monthly
funoll (Q,) was computed for cach reservoir (or
reservoir system) from eqn (3), using obseryvalional
records of all the other volumes, and also (E-P).
‘The salt balabee equation is,
CAV IVAC =Qy CylOy Ce- OQ), (4)
in which, CL Cy, Cy ave the chloride or sulphate
concentrations in (he reservoirs. runoll and Murray
River pipeline respectively and Cy, = Cy is the
outflow concentration, The monthly salt aecession
(QyCy) for cach reservotr was determined from eqn
(4+), using the observational records,
From the monthly values of Q, and Q).C),, obtained
from the solutions of eqns (3) and (4), the average
monthly values of Oy. QuCy and Cy for the period
1985-1996 to be used in eqns (1) and (2) were
obtained, from awhieh the annual runoll values (Table
1) were oblained,
In the analysis, only monthly data in which Cs) was
avilable were ised. hence, due to missing data,
sinall differences in estimates of the annual eanott
were Obtained from the Cl and SO, records for all
reservoirs or reservoir systems, except the Myponga
Peseryoit, see Figure |, The details of these
culculitions are given in’ (Kayaalp 2001)!
Throughout fhe text, the miss and salt aceessions are
viven to the aeeuraey of the chemistry and flow
hevords,
Winer salt fapait die ta rainfall
The chloride (CD and sulphate (SO) rainfall
wecessions hive two components. wel uccession,
Wiel is due to rainfall, and dry accession, whieh 1s
duc to deposition of ucrosol particles. ‘These
accession rates have been calculated using data from
anew rainfall chemistry program, conducted during
the period, 1292-1994 (Kavaalp, 2001)'. and alse
from historical datu sets. in purneular, Pludton and
Leslie (1958) and Hutton (1976), The details of the
study are given in Kayualp and Bye (1998) and
Kayaalp (2001)',
Wor Avcesston
It was found that the variation of annual chloride
concentrauion im raintall (wet chloride) with distance
from the coast ean be expressed by the exponential
function.
Cy eC, eye’ {5)
where ©); is chlomde concentration (mul). C) is an
asymptotic concentration, § is the distance from the
coast imd wis a constant distimee, and in which ©, is
2,98 mg/l, C) is D1.) my/l, and wis 11] kim, Using
eqn (5), the mean annual wet aceession (PC, \)
distribution was computed using the annual mean
rainfall map, dnd determined for cach reservoir
catchment using a planimeter. A well defined
maximuoy in chloride accession of over 3t / ki
occurs along the centrul ridge of the Mount Lolly
Ranges, and inland the accession reduces to less than
0.5 1/ km’ (ig. 2).
Dey Accession
Dry accession was also found lo be represented by
a formula whieh shows av exponential decrease
tolund from the coast,
b,, DD, (6)
where Doj. Dy and 1, ure dry chloride aecession
rates, X ts the distance front the coast, dis the decay
distanee, and inwhich DB, 1043 ke/kim /month, and
d) 2.7 kinnand Dy is 60 Ke/kiveinotth, Note chit the
dry deposit is mainly confined to the coastal fringe,
hut also (eludes a residual (niform deposition (D.)
mikand,
fuble 2 shows the total uccessions (PCr | Dn),
20 ALS. KAYAALP & J. A. T. BYE
x
+
i)
°
%
oe
36°8
36°S
i
138°R 139°E
lig, 2. Mean annual wet chloride accession rates in South Australia, Contour unit: (kg/km)
fb WALTER & SALT BALANCE OF THE RESERVORE CATCUMENTS OF THE MOUTH LOPTY RANGES 21
where Cy = Cy, and Dy = D,, for chloride, and Cp >
Cu, and Dp Deas for sulphate. The sulphate
iccession wus estimated Using the mean sulphate fo
chloride rahe of 22 (Kayaalp and Bye, 1998). This
niuw is somewhat greater than the corresponding
ratio for seasalt (07) due to the injection of sulphate
Tron land soueces,
On comparing Table 1 and 2, its apparent that the
catchment efficiency (ruqollrainkll) varies. hyn a
miximum of 24% for the Mi Bold resemvot
catchment to a minimum of 10%, for the South Para
reservoir valehiment
Irpicettion decession
In this study, irfigation volume data were abled
fran estimates prepared bv DEHAA from land use
mapping, and borewater chenmsiny data were
obtined from AWOC using samples taken randomly
ilunng the period, 1978-1998, Before application. it
WS Necessary fo pre-process the itrigation volume
dati lo cestimale the volume origmating [rom
borswatee in the walersheds.of the reservoirs, mm ewe
stapes:
Ui) The DEMAA data sets refer to the whole of the
catchment, tather than the watersheds of the
reservurs, The reservar component of the (otal
iviyation volume (Qr) was estimated simply by
mulliphying the DRWAA data by the ratia of the
witershed area to the urea of the whole catchment -
U0) Uhe total irrigation yalume cobsisis of two
compouents, Op OQ) + Oy oan which Q) is the
borewater irrigation volume, and Ow is the irrigation
due du farm dams. tn urder to determine Q) 2a farm
dain assessment study (McMurray, 1996) was used
io estimate (y), Table 4 shows the maximum storage
of farm dams: in ihe watershed areca of the
catvliments, and also the storage remanniny ater an
evaporation of | m (which is representative of the
evaportive loss durum the irrigation season).
computed using Equations (1) and (2) of MeMurray
(1996). We assume that the remuinine store (Tuble
4), whieh constitutes about so of the muxnnun
storage, provides the farm dam irrigation (Qi).
Using this csiimate. we obtain the borewater
irrivation volumes, (Qi) aim salt aecesstons (Qu ))
shown in Table 3, and note that the firm dams
contribule about 1]"o of the irrigation volume:
In all catchments, the sulpbate’chloride ratio is less
Han that beetrng in the precipitatian, This ts
purticulirly so for the Little Para (0.10). South Para
(O11) und Myponga (O.11) eatchments (Table 3).
There is a very considerable scatter ii the chlovide
und sulphate concentrations between bores, with
mein chlorite concentrations varying belween a
moasimum of $35 me’) in the bitte Para catuhment
and a ominmun of 303 meg) oy the Mount Bold
sucliment, ind mean sulphate concedtratons
varying over a range fron 87 my/l in the Torrens
vatchment to 39 mg) in the Mypenga catchnient
(Kayaalp 2001 urpub,)’.
The wrigation daty are undoubtedly of poorer
quality thas the ruael? and rainfall data. however, on
the assumption that the salts brought to the surfave
each year, are, oh average, totally mobilised into the
drainage system, Tables | 3 indicate that ierigation
forms a vital camponent of the annual mean salt
balance. The mean monthly mobilisation of the salts
is discussed below.
Determination of groundwater accession
The ainital neal accessiim
On using the estimates. of ranafl, raintill and
Ingulion wecession in eqns (2). we cur deterarine the
groundwater discharge salf accession. and on
assuming ihat the coneentrahions of elunde and
sulphate in the groundwater aceession in euch
salehmeal ure identical with those of the imation
accession, be.) = Cy) in egn (2), we can also obtain
Ue groundwater diseharge. and = fenee the
Cvapotranspiration. Here. proundwater meludes all
water sources offer than rainfall and borewater
inmgation. We note that the esimnates of wroundwaler
discharge. obtained trom the chloride and sulphate
data sets, using the assumption thar CO), = ©). are
similar, except for the ‘Torrens cutehment in which
the estimate fron sulphate is approxinialely twice
that front chloride. The reason tor this anomaly is
not known, Atall events. the groundwater discharge
is almost neehishle in compansen with the
evapotranspuation (Table 5).
The resulls (Tables |-2) indicate that the
vatcliments in the Mount Lofty Ranges have been
exoortinu between }-8 and 7.0 times as much salt by
runoff us they receive by rainfall, The South Para
gatchment has by lar the lowest ratio (1.8) uod the
Mount Bold (7.1) and Torrens (6.9) catchments have
the highest rarios.
On ()iveraging the chloride and sulpliate data sets
for cach reservoir catchment inthe water balanees.
und (ii) assuming that the salt secession (CAcludings
the raintall aceession) in the South Para reservoir
catchment is equally divided between yroundwaler
und irrigation aeeession, we cun construct a
consolidated budget for all the reservoir catehinents
(Tuble 6), The average salts output-impot mo, SO/S1
3.2, ‘Vhe raha of evapotranspiration to ram fall is
similiar between cutehments (Table 4), and in total,
he evapotranspigition (91) TUE Miivear) wecounts
lor s6% of the manhll (}062 10 Miyear), and henve
the vollune ouipul-inpul rate WOW =i. 14. Table
4 shows thot, ineluded in ihe evapo-truaspination
Nuts. ts o smd component of evaporation fom the
firin dans af LO" Miyoary pe. about 1a. Phe
49 ALS. KAYAALP & JA.T, BYE
Jan Feb Mer Ape May Jun Jul Avg Sep Oct Noy Dec
2
# 15
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dan Feb Mar Apr May Jun -lul Aug Sep fictt Nov Dae
= 025
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eon
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5
za
23
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dan Feb Mar Apr May Jon 4 AG Sep Oct Nov Der
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c= — = -_ f ;
3 | dan Feb Mar Apr May Jun Jul Aug
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Jat Feb Mar Ay May dun dul Aug Sep Oct Nov Oar
Pie, 3 The annual eyeles of water volume duc to.
precip lilion (Py Minot (Qe) tigation and groundwatc
(QQ) Qo), evapetranspiration (Qrr), and the rate of
sturage (dWidt), dnd storae (Wy. for the combined
Mount Bold, Myponga, Torrens and Litthe Para
culehimenmts. Note that the individual graphs are on
different scales.
catuhment efficiency (runoll/ramfall) is 19%, and
4% of the combined runoff and. evapotranspiration
oliiates from irrigation and groundwater
discharge,
The salt balance (represented by the sum oF the
chloride pnd solphate) indicates that salinisation
(uroundWwaler discharge) accounts for 48% of the
put al salts by ruooff into the reservoirs in the
Mount Lofiy Ranges, whereas 33% is supplied by
iptigation, and 19% by cainfall, Irrigation, therefore,
is # very significant contributor to the reservoir salt
balance,
The anal decvession evele
The unnual cycles oof — groundwater
recharge/discharge and ehloride and sulphate
accession were computed using an evapo-
transpiration eyele ( whieh was obtained from a
novel method using the stable isotope concentrations
in rainwater ), and by assuming that the irrigation
vecession occurred uniformly during the Summer
months (November-April ) (Kayaalp 2001)! The
results for the lour reservoir catehments for which a
full data set was available (Mount Bald, Myponga,
Torrens and Litthe Para) have been combined, and,
expressed in units of mm/day and myg/in?/day,
respectively, the catio of whieh yields the
concentration in mg/t.
The water balance (Fig. 3) indicates that the
precipitation maximum occurs in July, whereas the
evapotranspiration maximum oceurs in October, and
Wso that a runoff maximum of lesser magnitade
gecurs in August, with @ negligible runolf daring
mid and fates Summer (January = April). These
processes are mediated by a groundwater
rechurge/discharge system in whieh the maxinnum
recharge occurs in June, and the maximum discharge
oceurs in November, and resolis in a maximum
storage ol groundwater (W) of about 190 in in
August, relative toa zero minimum in groundwater
storage at the beginning of the year In particular. i
is apparent (hat the spring Cvapotranspiration is
largely maintained by the release of groubdwater,
rather than directly by rainfall Wis also clear thal
the groundwater storage (W) and the rumoll (Qe) are
highly correlated, and on averaging the groundwater
storage over the year, we obtain 87 hint, i
comparison with a loss of 186 mar by runoell Tence
the groundwater contribules a basellow (Barnett and
Zulphic 1999), which is 47% Of the stream
discharge,
The corresponding sall balances (Figs, 4 and 5)
show that the maximum) leaching of salts oceurs in
August-September in association with the maximum
in rungllY, with a negligible loss of salts by mnell in
mid- and late-Summer, The rate of storage ol salts in
the wround has a maximun in May, and the runoff or
galts is scen to be due principally to leaching. The
miximum storage oF salts (S) im the ground of 13
w/in? (Cl UT g/m?, SOs 2 gim* ), occurs in June/July,
relative fo @ zero minimum in’ November A
comiparisol of the fate of storage, and the aeeession
due to grrigalion and groundwater indicates that 1)
Summer, the salts broweht to the surface are
reabsorbed by the groundwater system belore being
lewehed oul by the runolf resulting from the Winter
rains,
THE WATER & SALT BALANCL OF THE RESERVOIR CATCHMENTS OF THE MOUTU LOFTY RANGES 23
20
15
PC.+D5. (mgim*/day)
s
dan Feb Mat Apr May dun Jul Alig Sep Oct Nov Dec
QnCe (mgim*iday)
3
dan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dac
z
3
a4
=
= ao
7
oOo
a
=
o
isj
Jan Feb Mat Apr May Jun
dul Aug Sep Oct Now Dec
450. | an Feb Mar Apr May
dSidt (magi day}
S (gim’)
eonseaeoeccacr
Jan Feb Mar Apr May Jun ul Avg Sep Oct Noy Dec
King 4. The annual cycles of chloride ion due to
precipitation (PCy + Dy), dunolfl (QeCg). irrigation und
groundwater (QC) — Quy) ahd the rate Of storage
(dS/di), and storage (S) for He combined Mount Bold,
Myponga. Torrens and Little Pura catchments,
Note that the individual wraphs are on different scales
In summary, the annual cycles of W and S deseribe
w steady-state environinent (over the period 1985-
1996) in which. the water volume and salts
limeclocks ure assumed to be on average reset cach
year, by mobilisation into the drainage system, such
that the pulse of salts introduced by irrigation im
Summer is mobihsed through groundwater leaching,
and eventually runs off into the reservoirs some six
months later.
Sources of salt accession contributing to
the recent history of salinisation in the
Mount Lofty Ranges
River Murray contribution
The budget calculations (eqns (3) and (4)) have
made use of the data from the River Murray
PCe+D> (malmiiday|
ee ad
Jan Feb Mar Apr May Jun Jul Aug Sep Och Nov Cec
68
Q,0, (maim'iday)
a8
2
Jan Feb Mar Agr May dun Jul
Paes sey Oe ee
Jan Feb Mar
Avg Sep Ost Nov Dac
=a =>
n S&S &
QC+GaCa (malm*day)
i—J
Apr May Jun Jul
Au Sep Oct Nov Deo
Ja Feb Mar Apr May Jun Jul Aug Sep Oct Noy Dec
Fig, 5, The amual eyeles of sulphate ion as for chloride ion
in Figure 4,
pumpage to the reservoir catchments in Adelaide to
determine the funolf discharge and solule
concentrations. The prime focus has been to
determine the various catchment inputs and outputs,
In practical terms, however, the River Murray
pumping strategy is of great importance for the
niaintenance ofan adequate supply of good water lor
the Adelaide region. Table 7 shows the annual mean
inputs to cach reservoir or reservoir system from the
River Murray over the period (1985-1996) used in
the budget calculations, which ean be compared with
the runoff statistics in Table 1. Over this period, 17%
of the supply to the reservoirs came from the River
Murray. It is ifiteresting to note that the solute
concentration varies significantly — between
reservoirs, this is apparently due to the pumping
strutegy, The weighted average of the River Murray
24 A.S. KAYAALP & JA. T BYE
TAT 7 ditidal River Murray pumpage, mean Cl and SOQ, concentrations und salts aecessions,
Flow Mean Cl Mean SO; Cl SO,
(MI) (mu!) (mel) Accession Accession
(L) (t)
Mt Bold 17217 WF 26 2016 360)
Myponga 2 - ~ - -
Torrens 14910 143 3 2136 420
5. Pura S907 155 35 756 ISO
(., Para 3807 149 34 504 44
Total AOKI 134 27 5472 14
TABLIS. Historical total dissolved salts(TOS) reservair concentrations, and chloride und sulphate inflaw and reserverr
concentrations for the peviad (1983-1996).
1985-96 1979-8]
cl cr §0.' SOF TDS TDS
(mg/l) (ingil)
Mt Bold 126 «6119 27 27 311 (373)
H Valley 135 2K 327 392
Myponga 123 UK ) iS 2h1 S(4
horrens 155) «(a0 31 29 364 420
5. Fura 1200 84 At, 4 432 268
{Para loo 137 28 19 42] 470
Weig. Ave 35 lh | 27 2) 331 371
1992-96 1994-09 1996-01
TDS TDS TDS
(mg/l) (g/l) (rig t)
200) (409) (342)
430) 460
283 3hY RY
359 346 45|
295 352 403
422 446 473
304 396 350
‘yeserverr cancentration. Tallow concentration, ( ) inferred from Happy Valley TDS coneentration. The TDS. concentrations
and reservoir coneentnitions fave been derived from United Water data files (United Water, 2001).
TABLE 9. Revernoie fiflaw coneestrations (aig) fier past
aid fiititre Soonui TOS.
(1) (2) (3)
(| SO, Cl SO, (| SO,
Mi Gold 139 ly \34 260 101 2]
Myponga ON is ta IO 1K 26
Torrens 161 3661 33 97 9
S.Paru 106 W - - 97 |
L. Tara Is2 2 [82 In 65 14
Weighted average [40 26 136 25 Y7 I
(1) With a doubling of the River Murray pumpage solite
concentrations forthe pertod (1985-1990),
(2) With a doubling of the irrigation aveession tor the
period (1985-1994),
(3) With a salts equilibrium, and with the ratio
(evapotranspiralionérain tall) =0.96,
chloride and sulphate coneentrations — are,
respectively, 23% and 31% greater than the runoff
concentrations in the reservoir catchments, and the
consolidated budget indicates that 38% of the sults
iNpul originates from groundwater, 27% from
borewater irrigation, 20% from the River Murray,
and (5% from rainfall (Table 4). The resulting solute
concentrations entering each reservoir are shown in
Table &. together with the concentvations in the
reservoirs.. The weighted average reservoir chloride
and sulphate concentrations are respectively 16%
and 29% greater than the inflow concentrations, due
to evaporation, see eqns (3) and (4). Mount Bold
reservoir is least affected by evaporative loss.
Interannuedl variability
Table & also shows the total dissolved salts (TDS)
over several recent periods, which can be compared
with the Australian guideline for human drinking
water, whieh should not exceed 500 ma/1, There is no
clear trend between 1979 and 2001, due to the annul
variability of rainfall and River Murray pumpage,
and possibly irrigation usage, which would be
expected to be greater in low rainfall epochs,
These results are consistent with the basie model
used in this study, in which the hydrolovicul balances
are interpreted in terms of a long-term mean (over
the period [985-1996) and a mewn annual cycle.
Past and fiture scenartas
Finally, it is of interest to discuss the effect on the
system of changes in the mewn inputs. ‘Three
Notional situations are considered:
(Ll) The River Murray solute coneentration is
doubled. This change has been suguested as a future
scenario (Murray-Darling 1999),
(2) The irrigation accession duc to borewaier is
doubled, without any change to the groundwater
accession derived in the balance calculations. This
scenario provides a measure of the worst-case impuct
OF irrigation on the catchments.
(3) The River Murray accession and the accession
THE WATER & SALT BALANCE OF THE RESERVOTR CALPCIMENTS OF THE MOUTH LORTY RANGES 25
due to irrigation and yroundwitler dre removed, ind
tle evupotranspitation is resel to correspond swith
(hit Oceurting in a pristine environment priv Lo the
iipacl oF uicultural development,
Table 9 indicates that the cffeets produced by a
doubliog of the River Murray solute concentration.
and by doubling the irrigation accession are
approximately squal On comparing — with
conlemporary values (Hible 8), we find that the
fespeetive increases are 21% and 17" for chloride.
amd 24%) and 19% for sulphate. In the pristine
environment in whieh SOUSE =1. the salts
concentrations. eal be determined directly if the
volume auipul-inpul raion (WO/WI is known. An
inspection of the results Cor the period (1985-1994)
obtimed by Jolly etal (1997) for 89 stations within
the Marray-Darling Basin catchments imdicates that
for dratmage divisions i which SO/ST =~ 1, WO/WL~
O04. Le. 96% of the tuinfall is used for cvirpo-
jrupspiration, This estimate is almost identical with
that given in Barnett and Zulphic (1999), who
assume thal under native vegetation in the Torrens
catchment all but 30 nim/year is tenspired, On Using
this ratio. we find that the (weighted averuge)
chloride and sulphate concentrations are respectively
OF meband 2b mae/l (Table 9), whieh, remarkably,
ane very similar to the contemporary values of 116
me/hand 27 my) (fable 8) especially lor sulphate
Discussion
In (his paper a water and salt budget for the Mount
Lolly Ranges -reservou catchments for the reference
period ()985-1996) has been presented. whieh
mikes ase Oba new aialysis oF the salt aceession due
to raintdll whieh issummarised in Pie. 2, aidhalse an
catinate of inivation accession. The principal resulls
ire Suomnutised in Tible @.
In general teyms, the Mount Lofly Runges
reservoir calehments ire characterised by a hil salts
ouipul-inpul ratio, SO/S1 5.2, Large sally mitios ate
typleal of catchments in whieh after the clearing of
native vegetation. the runoff leachas out the salt
stored in the round (Peck and Hurle 1973). On
compiring with the results for the Murray-Darling
drainage divisions (Jolly etal 1997), we find: that the
salts ratio is amonyst the largest values whieh eeu.
and algo that the volute output-iput ratio, WO!WI
S014. is typical for the high salts rato catchments.
although there is a large Varjability between drainage
divisions. These conclusions indicate that the
contemporary Mount Lofiy Ranges catchments are
fundamentally a hydrological discharge environment,
notwithstanding the results of water balinee studies
in the Fourth and Sixth Creek stb-catehments and
the Birdwoud-Gumeracha area of the Torrens
calehment, whieh Sugeest a weighted-avernipe
recharge of 0.26 min/day (Barnett and Zalplne
4999). Table 8. which compares the reservoir
coneentnitions and inflow concentralions, gives
confidence on the estate of the salts Gutput by
runoll, so hal the sally miput by rainfall would need
io be greatly inereused lo change this comelusion,
The relalive propertions of groundwater and
irrigation accession, however. cut only be aeearately
determined using good (ime series data ofthe latter
We conelude that it is very important that
borewuler irrigation should be adequately monitored
iy order t6 yuantily accurately its contribution to the
salts balnee, so that provision can be made for the
management of Adelagdein water quality tito the
twenly-lirst century. The understanding of the
process of chinge witiated by the anset of
agriculiinre, sinee Su George Kingston. on exploring
the River Torrens i Noverabet E836, observed that
“a mile further on the water beeuime quile pure
oaversing six miles of plum of exceedingly tine
land ‘(Jensen lO80), 1s onr onyoing chillenge.
Ackaowledyements
The uuthors are extrentely grateful for oany asetil
comments hy uve referces on several uspeetsol iis
paper,
References
Bapeeres Row Aheie, DL11999) Mount Lotty Ranges
wiimdwater ussesdinent. Peetiimy af the Forrens earal
catchment PIRSA SO/OKS0 Bepuriment of Primary
Tndlustoes aid Resaiifees South Austealia
Rireui of Meteataly, (2001) Bireaa ot Meteurilugy
data Files
Pirzearien, RAW Natol, & Selb, POG (1993) Tren)
sIeposits ind inicro-ornpsims pecurring in sale
sullidic souls with altered soil wauler ceeime inthe MA
Jolly Ranges: South Australian Int Biomineralication
Processes of Tronand Mungantese- Modern and Ancwat
lowireniments. fas UEC AW Skinner arab RW,
Vivpatniek, 263-2a6
Tt hon. FT tS 76) Ciylorite bo ratiweter fa rdiatian ber
Uistanve trom fhe oeean, Sevreh 7 T7208
Herton. dT) & Dpsiile LL lOSR) Accession of No
Nitrozenous dons dissebved in runavater ta nails in
Mictorla, Aust, Agric, Res, 9 492-5117.
Jrowsies L&R, CP9SD) Colonial aeclitcctiitce ma Sau
Australian. pb Righy, Adehitde Bae pp
ford BOWL ine Tok. Zia bo AWE TD Astscin. 00 Ae
& Warner, GR, O87) Water aad salt balalices af the
catehiments of Ue Murraye Baring Basr CSIRO: Laid
ant Water, Lech. pt, 3297
26 A. S. KAYAALP & J. A. T. BYE
Kayaacp, A. S. & Bye, J. A. T. (1998) Salt budgets of reservoir
catchments in the Mount Lofty Ranges, South Australia.
Hydrostorm’98. Adelaide, South Australia, 295-299.
Mount Lofty Ranges. Dept. Environment and Natural
Resources. S. Aust. 24 pp
Murray-Darling (1999) Murray-Darling Basin Ministerial
Council 1999. The salinity audit. A 100-year perspective
39 pp.
Peck, A. J. AND HurLe, D. H. (1973) Chloride balance of
some farmed and forested catchments in south western
Australia. Water Resources Res. 9 (3) 648-657.
Sevsy, J. (1984) Geology and the Adelaide Environment.
Handbook, 8, Bureau of Mines, South Australia 168 pp.
SHEPHERD, R. G. (1976) Hydrology: Groundwater. Natural
History of the Adelaide Region. 87-89 The Royal
Society of South Australia. United Water (2001) United
Water data files.
MOLECULAR EVIDENCE SHOWS THAT THE TROPICAL
BOXES (EUCALYPTUS SUBGENUS MINUTIFRUCTUS)
ARE OVER-RANKED
By SIMON WHITTOCK, DOROTHY A. STEANE*, RENE E. VAILLANCOURT
& BRADLEY M. PoTTs
Summary
Whittock, S., Steane, D. A., Vaillancourt, R. E. & Potts, B. M. (2002). Molecular
evidence shows that the tropical boxes (Eucalyptus subgenus Minutifructus) are over-
ranked. Trans. R. Soc. S. Aust. 127(1), 27-32, 31 May, 2003.
Australia’s tropical boxes, Eucalyptus deglupta, E. brachyandra, E. howittiana and E.
raveretiana have been classified as subgenus Minutifructus, a taxon described on the
basis of a single morphological character, a terminal inflorescence. Molecular data
indicate that these species emerge from within subgenus Symphyomyrtus. There is
also some evidence to suggest that they may not form a monophyletic group.
Consequently, we recommend that subgenus Minutifructus should not be maintained
as a separate subgenus, and that the four species should be included in subgenus
Symphyomyrtus.
Key Words: Eucalyptus deglupta, E. brachyandra, E. howittiana, E. raveretiana,
Minutifructus, Telocalyptus, taxonomy, DNA, phylogeny, classification.
Freer vite Rovil Society ofS. Anyi, (2004). 12700), 1732,
MOLECULAR EVIDENCE SHOWS THAT THE TROPICAL BOXES
(EUCALYPTUS SUBGENUS MINUTIFRUCTUS) ARE OVER-RANKED
by Simon Wirrroc, Dororhy A. STrAnn, RENEE, VAILLANCOURT & BRAbLEY M, PoTTs
Summary
Wrprack. 5. Sven DUAL VaArcaycoukr, ROB, & Pours, B.M. (2002) Molecular evidence shows that the
tropical boxes (Lucafypins subgenus Mriii/ricties) are overemked. Tras. A See 8. Ate, E2700). 27-42. 31
Mary. 2003.
Australia’s (ropted! boxes, Aicedypnesdeolipten E. brachyundin. & howinian and E neveretane have been
clussified vis auibeenus Wiaiprucies. a tien described on the basis of a-siighe mneepholowicul character, a
ferminal nflarescenee. Moleculat data indieate that these species emerge (rom within subgenus Syirplivenry cay.
There is also some evidence fm suggest Uni they may not fom a monophyletic group. Consequently, we
recommicnd that subvenis Minittrvctiy should not be muintitined gear separate subgenus, and mac the four
speeres Showll be peluded tre subwenus Swi ven ye ries,
Key Wards Bucalyphis deglapta, & braclvamla. lh. hawinting, Bo raveretana. Maniirncues. lelacalypnes,
AM i p
taxonomy, DNA, phyloweny. classification
Introduction
Miealypius subgenus Minud/rucnis (sensi Brooker
2000: lormerly subgenus ~Telacalvpius’ sensu
Johnson 1976) comprises Australasia’s four tropical
box species. This subgenus 1s characterised by
compound terminal inflorescences with very small
buds and truil, and discolorous, densely reticulate
leaves (Brooker 2000). Opereular development
Appears to be homologous between subgenera
Sviapivomyrtus and Mintifeueiis, indicating a close
phylogeneti¢ link between these bisa (Ladiges ef af.
1995). Snealppiey subgenus Mini rucies is diy idedd
ily Wwo sections: the monotypic seetian Hywararie
(the name referring to the equatorial distribution of
A delupia in the Philippines, Nidonesia and Papus
New Guinea) and section Damesfice [referring to the
ueeurrence within Austr OF Ao breed vanedlret
(nerthern Westerns Australia), Zo heveditiane (north-
eastern Queensland) and / raverctiedu (ventral-
eastern Queensland), in contrast (o A, deelupta), The
souping of the four tropical boxes into a single
subgenus was first suggested by Johnson (1976) with
the addition of the informal subgenus 7efoce/yplus bo
the seven existing nformal subgenera of Lacas/ipuus
(Pryor and Johnson 1971). Prior to 1976, Pryor and
Johnson (1971) had divided the tropical boxes
belween (Wo sections af subpenus Syip/yomnpenes:
section Maualuria, ser, Degluplae (EL dealipla, &.
raverenua and BL brachyandra) and seeaon
Hawitaria, sey Hawiriianee US hawltreaaea),
Chippendale (1988) followed this eicunscription.
Sehool of Plant Seenee aid Cooperative Researeh Cea: bor
Aiwiantable Proelichont Porestiey. Grivecsity of Paxiianny, Private
Oye F5, Clobort, Tvernanig TOON Auseentia
Coorlespaniding ation, Lindh, Darathiy Sted (itis ec sul
deseribing two series on the basis of djtlerences i
inflorescence und frat morphology. Meriferies
(corresponding to Pryor and Jolimson's: seetiun
Eguatoria ser Delite) and Fowitldiue ina
recent publication, Stuane ef al, (2002) sugeestedt
thal subgenus Adimi/reers (serie Brooker 2000)
may be nested within subgenus Suaplyomvrnes,
Their dati and sive results from Sale er af (1993,
1996) indicate thal Winutifructes should nol be
taked as a subgenus. Mn addition. no molecular
studies Wo date (Sale et ul. 1993, 19062 Steane ef al.
2002) haye supported a monophylerie relationship
among the species of subgenus Minwlifruetuy.
However the sampling of taxa trom suby.
Minwtifrnens has been Gimited in all these studies,
with two species being the Mmaximun in any ane
stily, This paper reports on the addition of two more
species from subgenus Avimudifredis io the 1S. data
set of Steane ver al, (2002). and the analysis of all
species belonging fo this tixon in a new molecular
data set derived from five segments of the
chloroplast genome (rtleteaP spacer, a/pB-rheL
spacer: pybAs/roik spacer, parbal sequence of arark
partial sequence of mdfhP).
Materials and Methods
Most of the samples in this study have been listed
in previous publications (Steane ef af 1999. Stwane
ehal, 2002), Additional samples are listed in Table |
DNA was extracted trom tresh or lrozven tissue ats
deseribed by Freemiun ef at. (2001). 1S sequences
were generated and unalysed as deseribed previously
(Steane ev a/, 1999). The primers used for PCR and
sequencing of five regions of the chloroplast genome
are listed in Table 2, PCRs were carried out as
deseribed by Vatllineourt and Jacksuny (2000),
18 S WHEPTOCK, DA, STEANT, ROE, VALLIANCOURT & ROHL POTTS
Hsient b Nia samples aved te this study pamples not listed here were tram Stédic eral, 1899 ur Steane et al 2002)
SC subsenus/sectiom code. NSW — New South Wales; OLD Queonshind: SA - South Australia: TAS — Tasrain
VIC Victorias WA- Westen Australia. *Sample tneluded in chloreplist DNA study: “Sample inchided in TTS study,
Specres Subenus Section SU Specimen — Location
Ty diversivatayt Snip veape ney Ineluse SJ DN T4398 Walpole, WA
Fy sahabnlin® Svan ve urns Muiedenarin SM 4149 Tinderbox. Southern TAS
Fy uhearbniliw™ Spl var ventas \alenaria SM IWts53 Otway Ranges. VIC
Le ulobilis ssp bleasiie" — Spapliveniyrnes Maiden = SM 44 ML. Bryan. SA
bh hawittrenue | Miniter Dene sticne MD MS1993 Atherton, QLD
FE hawitiene 2"! Miritifencs Dementicne MD = DN2526 Northern Ranges. OL
& hesentunig 1*! Srplivom eens Meartelenerta SM ANBC Buls Ridge. VIC
612808
be heesenmnnne 2 SPV PRES Mindenarie SM UTKIT Central VIC
BO neracanys 2h Aventdta Al DNi238 Johns River, Natth Coast, NSW
& retverttiana © Minti ens Domesticde MD 52255 Mr Annan Gardens. WSW
A stter® SPA VOntts Parner sD DNS41 Southern WA
Tate 2. PCR amd sequencing primers used at this study. “Region refers tothe revian af the ehipraplasé gename thai was
ningeted, “Primer HAR is the mine of the primer und ils direction (Forwurd/Reverse). “Reverse of primer math 4 of
Manos suid Steele (/ 997),
Region Primer (F'R) Relerence Primer Sequenec
tn-miiF TABe (F) Tuberlet ct af 1991 5 COAAATCGGTAGACGCTACG 4
TAB) (RR) Taherlet eral a9 S ATTTOAACTUGTOACACGAG 4
iplierhel spacer ep (de) Savolainen ehah ad S GAAGTAGGATTOAPPOATTORO 47
rhels (Ry Savolainen erat (994 S TACAGVIGTOCOATOTACCAG V
CieME Uk)
CiPM2¢ R)
G McKinnon
t) Mckinaon
PSNI rHIK spacer
FS AGACUGTITTCORGTGCG ¥
S ACKAGY TOCOGGOTTOOA 3
mk So ond uk (Py Manus sod Steele (997 S CTANSCUGTAGAGTACTOCL 3°
mak 4r( RY Manus ane Steeke (997 S CATCTTICACCOCGGTAGOGAAG 37
nih OA’ 972F (FP) Olmstead umd Sweere 1994 Ss GPETCAATTOCGOTTATATGATG 3°
1OBR (Ry Olnstead ant) Sweere 1994, S GCATAGTATTIGTOCGATTCATRAGG 4°
except thal the wdAP primers required 4 mM M,C,
Cycling conditions for all PCRS were: iottial melling
av 95°C for S min 3s eyeles of 94°C for lamin. 46°C
for Finin, 72°C for | minga final extension period of
72°C for S ming Sequencing was carried out as
described previously (Steane er u/. 1999), Sequences
were aligned by eye. The I7S sequences were
ingerporited into the ITS daty set of Steune ef ef,
(2002). All chloroplast sequences were combined
into asingle matrix. Gaps of hwo or mere bases were
scored us binary “aap” characters: (.e.. presences
abschce of gap) and the corresponding nucleotide
vharacters were excluded from the analysis, Two
feyions of arbicuity were identified ii the epDNA
dita set umd were exeluded trom the analysis: firstly.
14 bases of a single base microsatellite region in the
wul-nrul sequence: and secondly, three bases of
ambigaous alignment due to the mtraducton of gaps
into the apB-rheL spaeer sequence. Phylogenetic
anilyses were carried out using PAUP 4.063
(Swofford 999), Afalysis of the cpDNA data set
consisted ofa branch and bound search, the data set
was booistrapped 100 times using 100 replicates of
rundom addition sequence (MULTREES OFF). ITS
dala were analysed using heuristic search strategies
usmg rite as the functional outgroup (see
Steane er a/, 2002), The ITS data set was
boatstrapped S000 times using closest addition
sequence. steepest descent and MULT REES OFF,
Resulis
the chloroplast sequence data set comprised 26
samples (representing 15 species of Eucalyprs and
cight Gutwroup taxa), 3461 aligned bases (of which
X4 were potentially phylogenetically informative)
wund |4 gap characters (5 informative), lable 3
summarises the parlitioning of information between
the different regions of the chloroplast genome.
Branch and bound analysis of the epDNA data set
yielded 76 trees of length (excluding auta-
pomorphies). | = 151. (leneth including aute-
pomorphies, |, 332), consistency index (exclude
aulapomorphies), Cl = 0.669, and retention index, il
~ 0.845. The strict consensus is shown in Figs t- The
strict consenses shows that all species of subgenus
MOLECULAR PHYLOGENY OF TROPICAL BOXES 2H
Tani 3 dufienuation conten of aligned chlaraplast sequences. “bariuble sites” unludes iiformative and qulapamorpliy
lies. “informutive sites includes only potentially plivlagencrically lafovmative sites, Percentdves are culeulated us a
perconnige vl the uligned sequence length
RKogion Alinta Variable siles Informauve sites Informative sites Total inform,
lenth (hp) (Yo) (oy (otal ides) characters
(ral-irnk 721 M55) 13. (1.8%) 2 (4) 13
wipBerheL spacer BBR 41 (4.6%) Io (18%) (6) 14
pshA-irals spacer 4 27 bS") Hh (zat) Oar tl
mak 3 end 877 SY (10) 2!) 2s (TN) 0) 25
mh OA SSl 50 (8.0%) 19 (3.3%) bil) 2)
Votal 3461 247 (7,1) R4 (2.4%) 5 (14) 89
Mimiifrucius (godes MD and ME in Fig. 1) arise E glabulis 1 SM
from within subgenus Svauplvenvrusy (code starting
with °S’ in Fig. £). The monophyly of subgenus
Miuniifeuetus cannot be verified from Fis. |
‘The ehloroplast data presented here represent new
additional evidenee - with strong bootstrap and
bravely support - for the genetic differentiation of
Angephora and Caoryabia (together — with
Arillasiruay) from the other eucalypts, and for the
possible puraphyly of Corvahia (Steane ef al, 20022
Udovieie and Ladiges 2000).
The addition of eight new samples to (he “full” PPS
data set of Steane ev al, (2002) did not change
siznifivantly the overall topology of the strict
consensus oblained in the previous study (Steune e¢
al, 2002), The heuristie search of the ITS) data
vielded a total of LS1135 trees, |= 399 (1, = 405), CL
(444. and RI ~ O.889 ATL four species lrom
Subsenus Minwifrvetus enterge trom within
subgenus Spaphyonyriis Vhe “Syaphvemyrius”
portion of the strict consensus is shown io Fig, 2, The
four species of subgenus Minufi/rucius are divided
between two sister clades. Eucalyptus deulupta
(section Equatoriad) and FL brechvanedra (secuon
Domestica seusu Brooker) ure more closely alened
with sections Aasertaria, Latoangulatd and
Meidenarig (Clades Bound C from Steane ef uf.
2002: Fig. 2). Buealypnis howirttne and &-
ravercliana (both section Domestica) appear to be
ionophyletic with secriuns Biveetae, ddnetarie and
Dumaria (Clade Az: Steane et af. 2002), The same
E, glabulus 2 SM
E globulus 35M
J
E kitsoniana | SM
E, kitsonlarla 2 SM
E, raveretiana MD
E. howifliana 2MD
E.deglupta 43ME
E. brachyandra MD
Subgenus
AMinutarintys
Subgenus SyupAyomytus
e
E diversicolor St
E stoate: SO
I
E. tenuipes Cb
&. jackson Eli
E diversvalia ssp, diversialin FL
E curtisii 1 Ac
E_ mictacorys 2 Al
E quilfayle: OC
F. baileyana UR
Angaphora leiocarpa
Corymbja maculata CP
Corymbia calophylia CR
Corymnbia intermedia CR
topology within subgenus Syayeloeaitis was Arilast um
obtained when the eight new species were added to A
the “smaller Simphvanverms data set” (SSDS) of Stogtiveiie
Steane ef al (2002: resulls not shown), Bootstrap Altesynicanpia
and braneh support values. for the sphiting of
Lophosteman
Fig. |. Strict consensus (1 151, ht = 332201 0.669 R10 845) of 76 Inost parsimonious trees obtained from chidistie analysis
of cpDNA sequence dak lronr 1S species of Bucs ples aint cight outgroup Lika, Bootstrap percenuiyes over 50%) are shown
vbove. and braneh lenetlis (from) a sinale ee) are shown below, internal branches. Cipital letters followings species names are
ihe subgenus section eade for each species [see Steane er a/. (2002) for full details}: Ac = subgenus dcernsces Al - subuenus
Alveataie, Cly~ subgenis Cubaidea CC - subgenus Crticifirmes: CP = Corvindra, section Palitaria. CR ~ Canimbtiisechion
Kofiteio: LL subgenus Bical, section Langisivia: MD - subgenus Wirti/ricis, section Demesticus ML ~ subgenus
Minuti{rienis, section Ryudforiu: SD - subgenus Svaphyeanvetus, section Aanrarid: S1- subgenus Syaiplivenyrais, section
/nehisa: SM - subgenus Svnphvonvetus. section Meidenarias UR - subgenus Eudevini, section Rerentane
All S. WHITTOCK. DOA. STIANE RE
subgenus MWinvnfiiius beiweem these clades,
however, are low:
Discussion
Since IY76 when Johnsen added the intornial
E platen 38M
sonata 25)
a E aromaphinlia ei
£ glatuius | 3M
SYMPH1SM
E ovata SM
fd E kitsumania VSM |
SYMPH SM
SYMPH2 5M
£_ niteans 25M
— corainse 5M
= Es Soe SM
E. glabyius | SM
i= Tnaictera SM
durin 8M
E. michaelanit SA
E hall Sé
& gtantie 1 SL
E. granadis2 Sb
grandis VSt
— alia SE
platyprivila SE
E_ houseana SE a
LATO? SI
£. uraghyia 2 BL
E brassiaiia St
E camalduignsis SE
E, glaucina SE
E tereticarnis SE
1
4 c
mimi
ry
Ee E aoa ate ‘e
aT upla
E deglupta 3 ME
ri : E.deglupta 4 WE
5 E deglupta 2ME
E, brachyandra MID
E popuines SA
D E fanstluwrearia SA
—, howitiana 2 MD
' E melliodoyass
(Ucn SA
raveretiana MO
howittiana =MD
, albons 5A
erebra SA
polyantherriag SA A
microihaca 5A
| Spalhulata SB
wandew SB
cornlita 3A
, dundee SA
fests wptittales SP
staatal | SD
, stoater 2 SO
UNM SD
&. balladarnensie SB
E. = Srouevee 3B
E. falvata 5
1 E dehnats SB Dp
E optima 58
E saloronopnkve SU
= E pachyplylla 56
~ DIVERSICOLOR 51
7 E guilfoylo.CG
110. © ancraceys | Al
= E micracutys 2 Al
pola aly
m
mmmmn
nim
fuvestat Fig. 1,
Greene etal. 2002
Vig. 2 Portion] sinel consensus cladogram (| ~ 399, li 465,
Cl» DASH, RE O889) [rom chudistio dinilysis of PTS
sequence dald (ihree new Samples of subwentis
VWinwirncias were added to previously published yalin sel;
see Stoune ef af. 2002) showing positions of specius from
siibuenus Aiiitifeictas wihin subgenus. Syaphyeny eng.
Boolstilap percentages over S0"% ure shown wboyes aie
broneh lenuths (on asingle ree) are shawn Melow ifernal
branches. Chies AL B. ¢ and 2D 6P subgenus
Svaiphvomveny (Steane eal, 2002) are shown: Chide A
comprises seems Aenetatio (SA) Bicone (SH) 1,
Phavsperma (SPY and Dimmaria (SD) as well us £
envio onl eS siveeiie from subperiis Affinity:
C finle 18 - scetions Lifaaneulaae (SL and Ayer (Sh)
Chile C -scettons Aeideneii (SM) aml Rueentus (SR):
Clarke 1 - secrinnn /vedivere (SI) and Bivertae (SB) TL See
levend to Via. | for other subsenus/section codes.
VAL LIANCOURT & RIL, POTTS
subgenus “felocelvpins’ to the seven existing
subgenera of Bycalytiis (Pryor and Johnson 1971),
the tour tropical boxes, &) dewlupnd, & bruchvundrat.
LK hewitt und 2. raveretiona, have been
rouped together ina single subgenus. However, in
their original “Informal Classification of the
Ruealypts” Pryor and Johnson (1971) placed these
four species i two sections of subgenus
Svinphvaonveius.. Encalyplus hawitiane was placed
in the monotypic section Hearitaria, and the other
three species conslituled section Aynateria, The
phylugeneGe order of Pryor and Johnson's (1971)
classification placed section //aviiitama quite close
to section ddnatarid (congruent with our results: see
Fig, 2) In 1976, Johnsen combined sections
Kynataria ond Howitaria and separated them (as
subgenus Telocalyyptus) from subgenis
Spniphyoryenis, on the basis of their “wuly terminal
inflorescences”.
Both seis of molecular data presented herein
support the oliginal postulition by Pryor and
Johnson (197]) that species from subgents
Minutifructus aetually evolved from within
subgenus Syiphvooweriis, his is supported Lo same
degree by hybridisation data, although the
possitilily that the ability to hybridise is 4
pleisiomorphic trait can not be dismissed, Crosses
between eucalypt species trom the different major
subgenen are nol successful, although hybridisation
dues veeur between the monotypic subyenus
Idiagenes (FE claeziand) and its very close ally (see
Steane ef af, 2002; Udoyiere and Ladies 2000),
subgenus Hueelyplus (specifically, By venrenailes;
Stokoe ef af. 2001). Manipulated interspecitic
crosses wiwvalvings ie smill subpenus Aditi eens
und twa species Of sibgenus Semphvanryrtis
Jseelion Lufoansudatac (sensu Brooker 2000),
wophvlla s deghipa and &. pelfita x dewlapna;
Vieneron and Bouvet 2000. Siarot 1991: Griffin ef
vi. LORS] huve beon suecessfil to some extent, Apart
from these there have been no reports of natural
intru- Gb inter-yenene hybrids involving subgenus
Minutiiones (Grittin ef al, 1988), although (hese
May be (he only crosses ever tested, Our VS cata
(Fig, 2) show that 4) deg/upra occurs in a clade with
section Liloaneulutie (as well as seeious
Eysevlanin, Malena and Kacey), a vhs tay
help to explain the relutive suceess of ihe
Latoanenlate & EO deelupia erosses since, in i
broad sense, the more closely related cuculypt wike
are, the Wisher the likelihood of Successtul
iilerspecilic crosses (see Polls ef af, 2002; Steane ve
a, 2ON2),
Despite the assertion by Eldridge erud 11993) that
BE. devlupta bas neurly all the features of Brooker’s
(1986) “proto-cuealyptus’, the molecular evidence
indicates. that 2. deulupla evolved [ron a
MOLECULAR PHYLOGENY OF TROPICAL BOATS 3]
symphyvomyrl ancestor after differentiation from
other subgenera (carly Tertiary: Specht 1996). Thus,
the suggestion that /. dee/upte may represent an
aneient ancestral cuculypt can be putaside. in favour
of the hypothesis that £. dee/hupar evolved outside
Australia fram oa symphyomyrt ancestor, either
vicariantly (eg. as ae result of fragmentation and
westward Migration of pieces of the Australian plate
during the Miocene; Ladiges 1997), or as the result
of long-distance seed dispersal (ew. by winds Cam
1973, Pryor and Johnsen 1981),
The relationship of AO Aewittiena to the other
iropical boxes is of particular interest, given thot
Pryor and Johnson (1971) and Chippendale (198s)
placed £0. howled in its own monotypic taxon,
The chloroplast DNA data presented here indicate a
sister relationship between oO hewittiana and.
raverifiana. Both fhese species gtow ih ferthera
Queensland, and their close genetic relulionship nay
representa vicurniit allupaitie pattern of speciarion-
The scwrevation ol 2. heavidiana from the other
tropical boxes. on the basis of a suite of whar are
most likely aulaponiorphie characters, makes the
group al the remaining three species [ew series
Myriiformes (sensu Chippendale 1988). or seetion
Ayuclorin (sense Pryor and Johnson 19749]
paraphyletic.
The inmeve by Johnson (1976) to amalgamate the
tropical boxes into a single subgenus was bused oui
single character state (terminal inflorescences) that ts
rire in cucalypts, but could potentially he
homoplasious. Although neither source oF molecular
daa convincingly supports Affaires as i
nionephyletic group, bootstrap and branch support
for polyphyly of the taxon ure low. More data are
required to determine whether this taxon 1s
monophyletic. or whether the associauon of F,
howd and & raveritiqna with seetionns
Adinutaria and Pumacia is realor simply an artefact
of homoplasious (TS sequenec data. The elloroplas!
DNA dua (Fig. 1) certainly do not support such an
alliative, Repurdless, subgenus Waiwifienis 1s over
ranked jind should be reduced to seenonal level
within subgenus Syapyenivetas,
Acknowledgements
This research was funded by am Australian
Researel Couneil Grant, The authors are indebted to
those persons and organisations who provided
iadterial lor this. study, in particulurs Dean Nicolle
(Curreney Crech Arboretum, South Australi. Jobe
Nightingele (Australian National Botanic Gardens.
Canberra), Nutalic Papworth (Royal Tusminiin
Botanie Gardens) and Sharon Wilson (George
Brown Darwin Bolinie Gardens).
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TRACE METALS ASSOCIATED WITH SESTON COLLECTED
FROM SPENCER GULF, SOUTH AUSTRALIA, NEAR A LEAD
SMELTER: SPATIAL DISTRIBUTION, TEMPORAL
VARIABILITY AND UPTAKE BY BIVALVES
By Kirstin. E. Ross*, JOSEPH R. BIDWELL, MICHAEL WILLIAMST
& JOHN BOLAND#£E
Summary
Ross, K. E., Bidwell, J. R., Williams, M. & Boland, J. (2002) Trace metals associated
with seston collected from Spencer Gulf, South Australia, near a lead smelter: spatial
distribution, temporal variability and uptake by bivalves. Trans. R. Soc. S. Aust.
127(1), 33-45, 31 May, 2003.
Metal input from point-source discharges results in concentrations in the receiving
areas that vary in both space and time. In order to assess the spatial distribution and
temporal variability of metals in the Upper Spencer Gulf as a result of metal input
from a lead smelter, seston was collected over six week periods at eight sites around
the gulf.
Prisca ofthe Ravel Seerern ofS. Aust (N04), T27CT), S345
TRACE METALS ASSOCIATED WITH SESTON COLLECTED FROM
SPENCER GULF, SOUTH AUSTRALIA, NEAR A LEAD SMELTER; SPATIAL
DISTRIBUTION, TEMPORAL VARIABILITY AND UPTAKE BY BIVALVES
by Kurstin E, Ross , Josern R, Biowet, Micnven WinitAms? & JouN BoLasn
Summary
Ross. Ro. BibWwhLi, J) RO AWILLIa MS. ME Boas dh (2002) Trtee metals dssociuted with seston callected
from Spencer Gull, South Australia, neara lead sragler spatial chsuTbution, lemporal variability and uptike by
bivalves. Trams. AL Sue Slit, 12712 33-48, Sh May, 20028,
Motil mput from pain-suirce discharges results in comeentralions in (be receiving areds (hal vary in both
apdlvesind time, by order to asses the spatial distribution ind teaiperal yurtabdicy of metals in the Upper Spencer
Gallas a cesull of inetal imput from a lead smelter, seston was collected yer sis Week periods ab eight sites
around the ell, A total 24 cotlections frofa the cizhit seston sampling sites was made, Levels of metals mi the
seston were elevated al the four sites closest to First Creek (the sinelter effluent discharge creck) Steston
collected fram site Wo (he Site closest to the smelier) conlitined ihe Inwhest levels ef wll meusired metus.
Levels ol Pb in W6 seston ranged from 973 pore te 3060 ue. while levels of Zn. Cd, Cu and Mir al this site
runged tram 2630 98530 w/e. 41.2 356 pip Jeb 2 ywe andl 24) - 92) jie g, respeelively. A stone
seasonal (iiTuerice Hi seston metal levels Was folind at all sides except Wo. The extentor this seasonal inflnenee
was evaliled usin fine sertesainglyses ind the influence imeerporved to deteriiine overall trends, Seusonal
yariiiion pecounts for one third te hall (he-variation in deposition annually, Most sites cxhibited higher tctal
Jevels in winken eoresponding with the decreased seston deposifon in thal season, spd conyersely. inerensed
mel eaneentralions mh Summer eorrespondis veih hivher depesilion fares. There was to simficanl change
over Hime in depasinen mites at any af the sites exeepl We. for which there was a decrease tr total deposition
aver The monitoring: period. Mast sites showed statistically significant changes in seston ainietal levels over the
three years of the study, The site.closest to the effluent outhlll (Wo) was the only site Chat showed a significant
inerease in metal concenrravions aver the monitoring penod, This study indicates that frequent repular
monitoring ef seston inetals allows variation ating Hom-seasanal diflerenges to be taken into aewount. allow
lanporal Changes to be elucidated. ‘Vo cyaluate hroayvailubility uf metals associated with seston in the Upper
Spencer Cul (for which there were lirge quiintities of inetal data. experiments were condieted Using seallops
(Peete alba Tate) (Simmer) and scallops did initissels (V7 eeiliey edits Linnaeus) Gillin expostre), Mussels
were vise placed al the seston sampling site closest to the effluent outfl and removed at tilervals. aver We ste
week sampling period i aun to detcemine the wate of poeta) uptake, Tissues were anilysed Tor levels of Pb,
cd, Cu. Zand Mn and the levels at Gach site: eompared wih that in the seston, A stone relationship wats fauna
henween the levels of Ph und Zn in sestun and scallop Pb und Zn uptake. whereas Cu and Cd levels in seston
showed no celationship with thoseait scallop tissues. Lead and Zn in mussel Gssne were rekited to Phand Za i
sustun, and (here were alse weaker relatipaships beween the Jevels oF Coland Cu in the mussel lssic and seston,
athough celurionships. will these mctals were not-deteeted in the seallops, The temporal sceumutation stucky
iicheated that mussels Were roguliing some meus. wilh Zi and Mr levels raitialby increasing, then levelling
off. Cadmium Jevels were high in the seallops collected from the referenve site, and Shinwed ao signiicant
meréause an reirieval after si Weeks near the smelter Cadmium in the mussels mercised srnificantly ayer the
six aveeh expesure period, Copper levels were also high in the sealops: Von blared icke Bay, and decrensed
significantly uflersis Weeks in summer, Copper levels remained staric for both mussels sind scallops ta qulunm-
Neither Cd nor Co showed a relationship between the levels in seston wid seallops in either exposure,
During four seston collections: the total organic carbon (POC) conteal and the particle siae distribution of
seston collec tina evel af (he sites was determined, Suypnisingly oo relittorships were found between cuhe
POC content or particle size of seston und metal conventions in the bivalyes, supgestiog tat the mujer
WiMbevce in Nssue metal level as the total coneentation of the mekds im the seston. These results are enitiemed
(perteulirky in the case of Ph and Zn) by the relationships between seston metals and bivalve tissue levels,
Kivwouns: trace melas, seston. Spencer Gull seailop, mussel, Peete afba. WWyrilas celulis
Introduction
Wildl ang) Visteries Sciences. lexstn A de ME Universiy. 200
Nuigh Hall, 2258 TAME, College Sram, PS TIS USA
HL hentsn Ge Gann cile
Depiehient ol “daly. Okita Shite Uriverate Stillwater
(hy 7-7
Sehoot ob Phatincetiaal Molenhir ant Migdedical Sei nees.
Uiiversity af South Austotlia, Auebuide, 54, 8000
Seloliol Matheniatios, Untsersity of South Austialia, Miisssul
Takes: So. StS
Localised tice metal polation from iddsttial ar
municipal wastes his been entlied as one ob the
major issues facing the Atstrabiin frartae
environment (Zann S985). Since metal levels
assocrated with water purtiedhite mater and
sudiment can vary Over ime. determining the extent
of trace metal enrighment reqoires not only an
understanding ef the spatial extent of contamination,
34 K. F. ROSS, J, R. BIDWELL,
but also of the degree of temporal variability
associated with metal levels in the various phases.
The aim of this study was to determine the spatial
distribution and temporal trends in seston metal
levels in the Spencer Gull, an area that receives an
effluent with elevated metal concentrations from one
of the world’s largest lead/zinc smelters. Seston for
the purposes of this study is defined as the living or
dead. inorganic and organic particulate matter
temporally suspended in the water column (i.e. that
proportion that eventually settles into a collecuion
tube). As an extension of the studies of seston metal
levels, uptake of metals by organisms feeding on
sesion was assessed, Molluses are commonly usec
hiomonitors (Rainbow 1995), because they are filter
feeders, tolerate a range of contaminants and are
widely distributed (George 1980; Morse et ai. 1993:
Connel ef al 1999), Experiments were conducted
usmg scallops (Peeren alba Tate) and mussels
(Mytilus edulis Linnaeus) translocated = [rom
reference sites and placed at the seston collection
Ward Spit
Maas
Mangraves
Fie. |. The study area
M. WILLIAMS & J. BOLAND
1
South Australia
Pecten alba collection site
(Hardwicke Bay)
PORT PIRIE
@ Adelaide
300) kilomet res,
Mytilus edulis collection site
(Kangaroo Island)
Smelter
Pon Pirie River
SESTON METALS AND BIVALVES IN THE SPENCER GULD
sites. Peeren alba are indigenous to the area where its
M. eduliy is a cosmoapolitin species suitable for
drawing between-site comparisens (Rainbow 1995),
The study area
The smelter is located at Port Pirie on the Spencer
Gull of South Australia (Fig. 1) and has been in
operation since the [S90s. Processing mainly Pb and
Zn, addition to lesser quantities of other metals
and alloys. the facility has been a source of metal
input mo the gulf for more than one hundred yeurs.
The extent and impact of elevated metal levels was
assessed Lirouge a series of studies conducted in the
lute 1970s und carly 1980s (Ward e7 af. 1982; 1964:
Ward & Young 1984) Ward, ef af |984: Ward &
Hutchings 1996). In allition to some of the highest
ever reported levels of metals in sediments (5000
ta/e Ph. 16,000 tse Zn and 260 weve Cd), these
studies also demonstrated that marine plants and
animals (for example, Posidenia australis, Prine
bicolor, Penaeus latisieatis. Portinus pelagi us)
near the smelter had accumulated inetaly in their
tissues (Ward ef af 1982) Ecolowical effects
included the absence of some species from
communities in heavily contaminated sites and the
presence of some species that appeared particularly
resistant to high metal levels (Ward ef a/. 1982).
Llistorically, waste metals from the Port Pirie
sineller were derived from stack emissions ind dust
blown from the site, release of liquid effluent ond
loss oF metal ares and concentrates during loading of
ships (Ward eral 1982) Most of these sourees have
heen tmininised ov clitinated as facilihes were
upgraded and more ngorous environmental policies
adopted, However. the wastewater effluent continues
(i be a significant souree of trace metals, notably Ph.
24, Cd, Cu and Ma (Ward ef af. 1984), Currently. the
wyerave effluent discharge levels are around sO0.000
miday. The effluent ts released into a rapidly
Howing small dul ereek (First Creek) that leads to
the Open waters of the gulf Th their studies of the
smelter receryvine system, Ward ef a/. (1954)
Meusured trace melt ievels in suston. They chose
(iis phase because a lame proportion of the
orgunisnis within this systein are fitter Feeders (Ward
etal, (984). The objeerive of the study was to again
exumune metal levels in seston beeause of the
ceolovical siznificunce Of this phase.
Materials and Viethods
Sampling
Seston samplers (Fig. 2) were placed at cight sites
(St S82.83, 54. Wi. W3. Wo, W7) (Fig. 1). The W-
Sites ipproximiaite those used in the study by Ward e¢
wl (1982) The Sesites were chosen to follow
prevailing currents and tidal movements within the
bed
w
TARLE 1 dite Coeurdinates Jor Seston sampling sites.
Seston sampling site Site co-ordinttes
51 33° 07.982''S 137° 54.298! E
52 337 05,605' § 137° 58,724" E
33 33° 03-914" § 137° 51.130" E
s4 33" 10,766" S 137° 47.682" b
Wi 337 03.644 S 137° Se0lU EF
WS 33° 06.691" S 137° 49449" [
Wh AX" 08,034" S 137° 57.728" b
W7 337 04.422" 5 197° 48.1075 FF
2 35mm
+>
rape to attach
cement weight
Fig. 2) Seston sampler
area (Ferguson 1983) (Table Lt Fig. 1), Phe seston
sumplers were made oF PVC jibing (if 35 mm x
400 mm long. total volume = 385 mi), with inserted
baffles lo prevent ce-suspension of collected seston
(our tubes per site). The samplers were attached toa
conerete block such that the opening of the tubing
faving up was approxinuitely One metre ubove the
sediment (Ward er af. J984), Two bueys were
athiched to the sainplers to jake the site visible. The
collected seslon was recovered as close ia six week
intervals as weather conditions allowed. Samples
were retrieved by pulling them from the water ina
4th KL, ROSS.) RO BIDWELL. M. WILLIAMS & J BOLAND
Inder to piimise cisturbanee Of the colleeted
seston. Lach lube was capped and the sanjplers
retumed to the laboratory. On retrieval, new lubes
were placed in the sumpling rack to initiate the nest
collection. PWwerty theee collections at the eight
seston sumpling sites were made between July 1997
and November 2000,
Seton digestion and analyyis
Seston collected from each tube was fillered
through pre-weighed filters (Whatman! 42 ~ 25 un
followed by MLAS um filters Millipore’). the ters
and seston dried to a constant weight (-70°C). The
first 13 sets of samples were digested with 20 inl
TO! HNO), (Anata) and TO mi 70%, Tero
(Analar). Pive millilitres 37% HCL (Anolar") was
added (o the aqueous fraction remaining Tron the
diaestion and was made up to 50 mi with Milli RO’
water, The other ten sets of samples were digested in
HO. and HINO, followed by HCL (the change due to
a chinge in policy of regarding the use oF HCIO, at
dur resewreh institution) aid made to SO pl with
Milli ROY. Tilter papers aeid blanks and river
sediment relvrence standard (Standard Reference
Material (1645. Washington, DC) controls were
used, Samples were analysed — for metal
concentrations using atone absorption spectroscopy
(Varian"). The difference in results for the two
digestion techniques found tm the sediment stundiund
were used to “edrreet® iter samples for differences
in metal recovery unsing Tram the different
Uigesticitts.
Seston characterisation
During four of the collechiods in autumn, the toil
orginie carbon (TOC) content and the particle: size
distribution of seston eulleeted from each of the sites
were delermingd. The particle size frucrions above
wid below 75 (ii were determined hy wel sieving
and siibsequent drying ut lO0"C for 2b bh. The
Huction below 75 ior was further characterised
ust at Lirser Mastersizer (Malvern Tystruiments
bach) All fractions (above 63 am, 63-4 yon and those
below 4) aire reported as a percent dry weight of
the toil sediment. TOC was determined using the
modified Mebius procedure deseribed by Nelson &
Salniners (1O82)
Peclen alba pané Mytilus cclulis s/pedies
‘Two separale expasure studies were undertaken, In
the firsr (summer exposure: 20/11/98 AA /99), PB
d/ha were the only organisms used. In the second
(QUIT expusine! 6/4/99 — 18/5/99), scallops and
A) edalis Were used and additional mussels were
Placed wt the site elosest to the effluent autfull and
colleched wl iplervals lo -assess remporal pike of
irate onelals, Seallops were collected trom
Hardwieke Bay on the Yorke Peninsula of South
Australia, and mussels from Kangaroo Island
upproximately PS ke from the South oAustration
mainland. ‘These sites hud previously been reported
to have low. inetal concentrations (Zany (99s, Ward
vd al, 1984), Both species were held in flow through
tanks far several days for depuration priar te
translovution, Thirty scallops (20 1 summer and
10 i) autumn) and bine mussels were retuned
for digestion (o establish initial trace metal
concentrations (desiunated as reference vonven-
tritians). Mussels (pliced frst in mesh orange bags)
und scallops were plaeed in plastic cages attached tu
the seston samplers al cael) seston sampling site (rig
1) and left in place for six weeks, Scallops were
placed al all sites io the summer exposure and ut-sites
$2.53. S4, WE and W7 in the autumm exposure,
Mussels Were placed at all sites except WI in the
wulumn.
Ar the end of the field expasure. seallops and
Ifussels were batlirned to the luboritory and euch
Whole body dried Lo constiunt wermht at 70°C price
io digestion in HNO, and HCIO, (Anata), Tissues
were analysed for levels al Pb, Cd, Cu, Zn und Min
Using alomie ubserpuan spectroscopy, A biological
suuindard. mussel issue (GBW O85 71) obtained bom
the National Researeh Centre for Certified Reference
Materials (CRM). (Ciraham Bo daekson Ply Lid,
Victoria. Australia. wos digested cum) aimbysed inthe
sume manner as the Sanples.
lemporul uplake
Mussels were placed at Wé (ihe seston sampling
site closest ta the effluent Guu) und Sta 6
Indiviellals remewed for jaueysis on days 3, 7, 14, 28
und 42 over the sia week caposure period iy aul
to determine the rate of metal uptake. Only A, etieliy
Wis used lor Unis study stave the foradon was both
shallow (and therefore subject to rapid temperature
Fluctiuitionsd and had high levels af suspended
sellids.
Sterlivlical anedlyses
Initial evaluation of the data sets indiguled a
seasonal influence on bath seston deposition ind
metal coneentralions al most sites; ‘Tinie series
analyses were therefore conducted on each metal and
deposition data set by re-urdering the data by time ul
your, irrespective of year colleered Cosine curves’
(y- ytaucos(2atT +h)
whites ¥ inca metal Concentvation aver [he
sampling: pemod at each Site. aand b abe Trequeney
and magnitude variibles. 7 365 days. and ¢ = cli
of dalleetion (ala possible 365) were fitted to these
re-ordertd data sets, which allowed trequeney and
W7
Wo
W3
Wi
st
TAGE 2. Seaset selaronstiyas the mloiniitip betisen season und metal levehifepasition | as derermined by the coeii wares dererninaton (Re values benveor vnpiryeal data
iad fitted carve Wilties)
SESTON METALS AND BIVALVES IN THE SPENCER GULE av
So Pe ese magnitude of change to be characterised, The
$ zr # = £ S52 coelficient of determination (reported as R°) between
Sema esaegsttezt= = the fitted values (as determined by the cosine curve)
Suscts gs aon S/S 2 aind the empirical values was determined to assess
2. = s r = 34 the strength of seasonal influence. The residuals (the
cr values remaining aller seasonal mfucnce was taken
25 ity account) were then graphed against lime (in
3 ¢ 6 KE £23 chronological order) to deduce any changes in both
ee 2 | = = = = e gs] 2 3 Sr Eee teal vig cries over phe
socotesstscHtalte olan 3), The values between season in
iat 3 = = r. x Zp metals level/deposition ure indicative of the strength
7 \ ' ‘ 1) Se of the seasonal celationship, ‘These residual values
gz are either the resull of veneral (unexplained)
: 25 variability or can indicate possible temporal trends,
a = FS A = zZ3 Trends a the residual values over lime were
AtTSeTatietaat ales characterised with regression analyses. All results
sec SSRorssls 2 reported as shutistically significant resulis ire al the e
a = mw MBa = 0.05 level. Results where p<0.1 are also included.
‘ a and ure indicated as such. Statistical analyses were
7 a, a Ea performed using Microsoft Excel spreadsheets.
ha ft s 2 = Z 2 Seston and bivalve data were compared with
ys un) SO ete FE ES a regression analyses (least-squares regression with
cee a = te cZ= % ze = seston metal the independent variable and bivalve
5 7 0 & Flee metal the dependent variable) using Microsoll Excel
! Se spreadsheet software, “The relationship was
2 Z considered significant ab p<0.05. The Ro values
a. ™‘: (voefficient of determination) indicute what
5 2 & les pereentuge of the variation in the bivalve metals is
SUF LAER 5 Es i Sil = due to the relationship with the seston metals, amd
SES EPESRO ES zs 8 thus a measure of the strength of the relationship.
> 7 & Fle 3 Regression was used sinve thallowed extreme values
#5 that could be skewing the relationship(s) to be
BE removed and the resulting tine compared with the
x oF Hoe tee = 5 milial resression line, TOC und partich size were
rom 2 Ss EES compared with bivalve metal coneentratiuns usin
SETA TO SaS € a vorrelution anilyses. Seullop tnice metal aptake
aS a Sar = io S/o during different seasons and mussel and seallop
Po FS Bo gt yy 2 uptake were conipured using correlation analyses,
oF These results were also considered significant when
e~€83 = > ar g p<0.05, und ie reported as the currelation
_ Ss 3 aS a = coelicient squared (R?) (Zar 1984).
pe a ae Tx eed os ee,
- 3 § s. F502
- a= 2 Spatial distribution
a ae Levels of metals in the seston were clevated
r 7 j _| mes (compared with the other sites) at the [our sites
2e¢it2e 3 Bees closest to First Creek and the shipping channel,
ris tase 3s am s|ses Seston collected from site Wo contained the highest
Sm aR Ragots t= ase levels of all five significant Inetals, Levels of Pb in
ee ee = BE a Weseston ranged from 973 we!e to 3060 pee. while
! ; ie levels of Zn, Cd, Cucand Maral this site ranged from
Hes 263) 9530 ye 412 35H yi. 51 ZU wie
5 243 s, and 241 92] jiy/e, respectively. Metal levels were
fe. Bea & 2 |? 88 also clevited im sestan From site S2. This site: is
Pg RT ee | hae € located approximately 5 km trom the mouth of First
3 |S=Eh Creck und on the edge of the shipping channel
38 KE. ROSS, J. R, BIDWELL, M, WILLIAMS & J, BOLAND
a b
GOO 4 F274 Initial concentration ra
aut : fozo) Inittal concentration alll S500 {1 Average concentration ie
we ==) Average concentration ie SU tex) Final concentration Ky
feexq Final concentration a
anh 7M) 4
= — oun,
zB St
Fam a 2 sua
3 i i
2 be = 400
an | be
a kM 300)
4 Rol
ki be
ka Ke din 4
Tu | ba be
: i 5 5 Re too
fy I 7 He i ts ot)
S3 S4 Ws W6
2H) 120 4
240) tien Initial concentration rin | 224 Initial concentration =
200 -—> Averuge concentration Sy (= Average concentrition |
Inn late Final concentration : 100 i ees Final concentration A
111 as
id
2 \4 a au
= 2
z =
£ z Ww
E =
z 3
3
i 4
i 5 J
ae "
Wi ws
e | f
a 160 wee, Initial depositiag
Average deposition
gnu 4 40 a Eh Ws
===) Initial concentration 4) 40 4 mexy Final deposition
70 Ss Average conecafration D
(==> Final concentration ~ 1204 rd
a x =|
ge on H s 5 EI a £
a se 100 = = = |
a = f= =|
z aun z = = } Oo =
2 2. kD i= =| eI = E
5 a 5 | 3 eI
= ‘| ei =| 5 I) eI
3 5 bu E = EI 5 eI
is = | = = = rai
Ee} B 4h | = = |
| EI = E E E
2 Ug - BE & &
BB ee Ge E HORE
: : = " 7 LA L = >
wi wi Wh W7 51 Sz 53 Sd wi w3 We WT
Fig. 3, Levels of lead (a) zine (b) cadmium (¢) copper (d) manganese (¢) (mg/g) and deposition rates (1) (mg/day) associated
with the seston. Initial and final values indicate the change in seston metal concentration/deposition over the sampling
period (1997 — 2000). These are estimated using the residual values (following incorporation of seasonal influence),
(initial and final shaded bars indicate p<0.05, unshaded bars p<0,1, no initial and final bars indicates no statistically
significant change),
SERSTON METALS AND BIVALVES [IN THE SPENCER GUL uw
enterine the Port River. Levels of Ph in S2 seston
ranged from 170 SIX pw’. Sites WI and S1 fad
the third highest levels ef metals in seston. with
levels of Pb ranging frais 35,0 222 dap. Sites 53,
Sd. WS and W7 had lower leyels of metals
assaciuted with the seston. Mean seston metal
coneentations dre presented im Fig, 3a-e. Average
sesion deposition danged from ~7 muday (Wo.
W7) to 120 meday (WI) (Pig. 3),
Seasaidl variation
Phe influenee of season vn seston deposition as
detenmined froni the model (y= y% ~a cos [anv |
h)} as presented in Table 2. There were stynitigant
(defined as 730" of the variability in depusition
espliined by seasonal variation) Seasonal trends im
seston deposition rales al all sites cacept Wo, Season
ueeounted for ayer half the varialion io seston
deposMion at sites $3 anid WI and approximately one
Hot of the variition in deposition at sites ST. 82.54
and W7, ALall sites Cxeept SL, seston deposition was
slightly higher in the summer than the winter. Site
Wh, lowuted closest to the outfall had the weakest
relationship belweet) season und seston deposition
within Be value of 0.1. Table 2 also presents the
viriables associated with the Htled cosine curves &l
and ty) tor cauleot rhe metals at cach site,
As With depositivn, sites WI and $3 had the
slronpesh relationship beiween tor] metal levelsand
sensor. wilh approximately 40% of the variability in
metal levels atimbuted ly season al Iese sites (Table
4). Vieute 4 (40 at S3) is a representative graph
illustrating the relationship beiween seasen and
metal levels, S2 and S4+ alse hud strong scasonal
changes in seston metal concentrations, Notably,
Wo. while showing ho seasonal relationship
deposit. wus found to have a relationship
betwee total metal levels and season (mean Re =
(35), W7 ba wweak relationship between metas
levels and season. despite 30% of [he variation ip
deposition being explained by season. ST hud no
relitionship beeween metal levels and seasen.
excep? for Mn.o and W3 bad uo relatively stone
relanonship bewween Zn and season. und weaker
rehationships between Cd and Cu amd season, and
none wilh Mir and season,
All sites exhibiting seasonal variation ia seston
inet! concenthibons except Sl had higher metal
lovels in winter eotrespooding with the deercused
sestan deposinon in winter, and conversely.
inereased =o meta} concentrations in Sunimer.
corresponding wath Hieber deposition rates.
Temporal ters
Vimre was no siunificant change over lime in
deposition rates atany af the sites except WO. for
whieh a deereuse in toni deposition was observed
aver the munitoring period (Pts. 31).
Lead copeentrations in the seston decreased
signilicantly al four sites over the course of the
monitoring study ($2, $4, WI. ST - altho at site
St p owas ©U.1) but inereased siznilicantly atl Wo,
with -30% of the variability at these four sites
explained by temporal changes (Fig. 3a). Zn levels
decreased siznifivanthy at six sites (S41, S283. 54,
WI and W3). and remained unchanged ar W6 (Fig.
35), There was d less Sivnificunt deerease in 7a
seston concenttalions at W7 (pet. t) Figure 5
present examples of strange (82) Re — 0.56) .and poor
(W6: Re = 0.0L) relationships belween change in
seston metal levels and ame. Cd levels deercased a
S32 and Wl. and jhereased significantly at W6 (Fig.
3c). S2 also had a decrease in Cd coneenteations,
although ata less signiticant level (= 0-1). Copper
concentrations decreased significantly at ull sites
(allhoush St atp> 0.1). except Wo dnd W7, wath nb
change (Fig. 3), Mn concentrations deereased at ST.
$2 and S4_ und increased at Wh (Fig. Je).
Those sites showing the inpst significant changes
in seston Metal levels were S4 and WI (deerease in
lolul metals), lollowed by $2 (dieereasey, SI, 51, W3,
W7. The site closest to the effluent oottill (We) was
the only site that showed a significant inerease in
metal concentrations aver the Nonitorme periad,
Stinducd reference material
All Standard reference material (SRM) Zn, Cu and.
Mr recovery values fell within the eoniidenee limits
ol recovery valies published by the supplier
(17204169, [09219 TKS297 jie. respeetively)
Additionally. there was no sivmlicant dillerence
heiween the 2 digestion methods for these three
metals. Lead digested with HClO VINO, fell within
the SRM supplier values (714228 fief), although Ph
reeavery was lower using the 1L0./HNO, digestion
(by 11%6). Cu recovery was lower than the SRM
values for both digestion methods, with a difference
oF 5%) When the change was made to 1LO.WHNO,.
Therefore Ph and Cd yalues were “corrected” by
mulfplying the empirical yilies by 117 and | 05
(Pb und Cd, respectively), Given the difference in
binding constants between Pb and Cd (Balistrier) &
Murray 1984). (lis not elear why these results were
obtained. Nonetheless, the resulis were consistent
and reproducible and were therefore used to allow
comparisons between the Wo digesta methods lo
he made.
Bivalves
The seullops all died at WO in the summer and
Were therefore nol pluced arihis site in autunin, Arall
other sites there were few or no deaths of enher
scallops af aiyssels during the six-week oxpostae
perc.
AN K. bs ROSS, J. R. BIDWELL. M. WILLIAMS & J. BOLAND
Tanne 3, & pales for the regressions.of scallop anid metal
seston levels,
Pb “n Cd Cu Mn
Scallops (summer) (87 O88 O45 0,23 Fed
Scallops (autumn) £90 (73 0.04 0.001 0.002
Mussels 0.99 (099 862 O44 O.001
Numbers in italics indicate a significant relationship
(p-0.05), underbned numbers indicate no change in
(sigmficant) slopes when regression analysis performed on
The dart points minus $2 and W6.
4
lath
Try
a
jaw 4 eh,
x x
Ri] Pail ie
= at ~
2 wo d a
a a
ta
3 xa]
s
ue) 4
uv
nit)
u +h
i 100 200) ade
collection day of year
Vig, 4. Example illustrating the relationship between
empirical seston metal concentration und the fitted eosine
curve (graph presents ine it-site 53)
Relationships hetween seston metal and bivalve
metal
Table 3 presents a summary of the relationships
between the bivalve and seston metal concentrations.
There were significant relationstips between seston
and bivalve Ph and Zn concentrations in both
exposures (p<0.05). There were also significant
relauionships between Cd in seston and mussel tissue
und between seston Mn and scallop Mn (in Summer
only). Seston metal levels at site $2 in the scallop
Study und sites W6 and S2 in the mussel study were
significantly elevated compared with other sites, In
order to determine the effect these points had on the
Tegression curve, the analysis was also performed
wilh the points removed, The slope of the second
regression curve Was then compared with that
generated with all the data points. Representative
graphs illustrating the effect of removing extreme
values ure presented in Fig. 5,
The slopes of the relationsinp between Pb levels in
scallops and Pb levels in) seston) were not
sigmifcantly altered aller removing the $2 data point
(Mable 3). In the mussel exposures. there was no
significant change m the slope when the W6 point
5a
700
oni)
Suv)
og’g zine cesidoal + mean ($2)
Wik
AU
5b
dint (
(THD ye
aon
ug/g zine residual + mean (WH)
400
AK)
wy
hituw
Fig, 5, Examples illustrating the relationship benveen
seston metal conceniralion and time nfter seasonal
vanation is taken into account. Graphs indicate strong
(vine al site S2) (a) and poor (vine al site W6) (b)
relationships,
was removed. although remoying $2 resulted ina 2-
fold increase in the slope of the regression curve.
There were significant reluhionships in both “Zn
comparisons (Rt = 0.73 und 0.88), although when ihe
$2 point was removed from the autumn data, the
slopes were no longer comparable. This is possibly
the result of fewer remaining data points (4) in the
autuinnt exposure compared with summer (6). The
relationship between mussel and seston Zn was
significantly altered by removing W6 from the data
sel (R? = 0,92 vs. 0.02) although this relationship oo
longer held when W6 was removed trom the data set
(R° = 0.02). This was also true of the relationship
between mussel Cd und seston Cd (R° = 0.62),
wthough no relationship was detected between
scallop Cd and seston Cd, There was no relationship
hetween bivalve Cu and seston Cu. There was a
significant rehitionship between Mn levels in
scallops exposed in the summer and seston Mn,
SUSTON METALS AND BIVALVES IN THE SPENCER GULF 41
TAKLLAL Summary of R- values found henveen metal levels
i xcallaps and metal Wvels ih mussels deployed at the
sevinur samplinis sites.
____ Metal R value
Lead 75
FATS (55
Cada 0.04
Copper (7
Munwiniese ONY
Nombers in italics indicate a significant relationship
(yr 05)
though the slope of the repression curve changed
sivnilicantly when S82 was remeved from the data
sel,
Comparison benween Po calbis and Me edulis: ard
seasonal comperivans CP alba)
Lead and Zn were the only metils for which there
wilh a relationship beuveen (he two bivalves (Table
4). Levels of Pb in summer exposed scallops were
not significantly different [rons those exposed in the
auton ‘There was also no significant difference
hetween seallop and mussel Ph concentrations.
Scallop Zin was not significantly different between
seasons. although scallop Zn concentrations were
higher than mussel Zn atall sites. This contrasts with
the initial concentrations of Zn in the bivalves, which
was slivhity bigher i) the mussel (issues Compared
with the scallops. Cd levels in scallops exposed ih
the summer were higher than thase exposed in the
auturon, and Cd levels in seullops 1 bath seisons
were fneher than that tn mussel tissue. Scallop Mn
wus significantly higher (han mussel Mri wall sites,
und also in initial unexposed bivalves. Table 4
presents ao sunmnury of the relationships in mela
Uptake between mussels and scallops.
TOC and parneulute size distribution
There was no relationship between TOC or particle
sive and uptake of uny ol the meus examined in
ciiher scallops or mussels.
Temporal uptake
Lead and Cd concentrations in niussel tissue
THereased significantly until day 28, ufler which the
voncentatbus levelled, indicating mussels bad
reuched steady ste. Cd coneentauons deerensed
significuntly following initial trtnsfer to the
exposure site, While Zn levels inereased gradually
until day 28, On day 26, concentrations of Zn
increased significantly Tollowinge an accidental
release of Zn electrolyte solution from the smelter
(2/5/99). The level of Zn in mussel tissue lakea on
day 46. however, tac returnect to pre-spill levels
indicating some reguhition af whole body Zn.
Interestingly, Zn was the only metal for whieh tissue
levels corresponded with the aecidental release.
alihough all metal levels were elevated in the
effluent (Pasminee Port Pirie, Wopub, data), Cu
concentrations in the mussels were variable
throughout the expostre period, and Mn
concentrations decreased following placement atthe
study site, followed by a significant iercase. Mn
concentrations did not appear to reach steady state,
Discussion
Spatial distrburan ap ners
While exhibiting varying binding affinities
(Balistrieri & Murray 1984), metals can generally be
said lo have a preference for the fine particle size
fraction of sediments (Lead vf uf 1999). In this
study, seston wis not sub-divided into particle size or
mass. Morse er gf. (1993) state that simply reporting
average tolal concentrations can be misleading
beeause of the variation m metal levels associated
with different gram stves. In our study, we attempted
(o account for some of the influence of partele size
by conpsideriiig seasonal miluences an seston
deposition und metal levels, Under conditions of low
wind and turbulence. suspended paruculate matter
concentrations are lower and are probably camposed
largely of finer sediments and conversely, stronger
winds resuspend a vreater number of larger particles,
whieh are comparatively low in metals (Morse ef al,
1993). Therefore gram size distribution within seston
samples is likely to be the resal of physical
conditions, which in tui is a result of season in thy
scallop lead (suyonien) (ug/g)
w — . = _
“ 1 ny isu -
estom fool (sp iiuier) Cg a)
Fig. 6. Graph ilhisteating a case for whieh cemoval at thie
vaxtreme dade bas no sieifican etleet (a panda signi eat
elfeet(h) on theslopeat tic line. Grbroken line indicites
lihear reeression line using all data pots (1) [grey] 93 8
confidence jitervals). Wrolken tine indicates Tittear
repression fine minus the extreme paints [unfilled pom)
( grey dashed 95 y contidence intervals)
(2 Kb
Upper Spencer Gulh By considering seasonal
vartbility, we have a better indication oF overall
leportd changes in trace metal conventrations.
Seasonal variibility docs not however account tor
particle size differences between sites. Normalising
ler grain sive, ising metal:Fe ratios of defining the
total Hiiiber oC available binding siles dre methods
that allow between-sile comparisons to be mide wath
preuter certainty (Morse of af 1993; Turner &
Milhward 2000; Balisteree? & Murty 1984), This
sludy, however also assessed the: relationship
between total seston metal levels and biowvailabiliy.
In ais study. strony relationships were apparent
between seston Ph and Zo levels and Ph and Zn
uptake oF both scullops and mussels, indicating that
sestun melals are a good indication of the
owvailible frsetion of metals. [eis under this
assumplion that between site comparisons une
feported,
Not surprisingly, WO, the sile closest to the effluent
dischurge site hud the highest concentrations oF the
five inetals meusured. However, seston trace metal
coneentratqans sere Wok a fuietion of distance trom
the Ourdl, Stoqwas fhe same distance trom Firsl
Creek as $2. although S2 had higher levels ofall five
metals. Stand Wi bad comparable levels of metals
n-seston even fhough WL is further away tron) the
wutfell than SI (- 8 ker trom W6 compared with 14
km) The conventrarion gradient for most metals
followed the ventral current flow ih the area
deseribed by Feretson (1983), While beth S2-and
Wi were Jocated otf the shipping channel which
could cause resuspension of metal bound sediments,
thereby influcneing seston metal levels the
compurable deposition rates at $1, S2and WL makes
that seem unlikely. In a study of inetals and
particulate matter conducted in the North Sea.
Fappin ei al. (1985) concluded that movement of
particulates as aenerally linked do water circulation
ised ins in.
The four sites further afield ($3, Sa, W3, W7) had
Soniivantly lower concentations of most metals,
However, then ‘background™ statins remains
uncuntirmed (see lemporul irends). The levels of An
and Cd al these four sites were similar to one anather
sod lower than rhose found at die other faursites (S14.
S20 Wa, Wo)oalthough levels of Pb and Mn at $3
were higher (han al the other three sites, as was Cu at
WT. This sdawests thitt desrgnating one or nares af
these sites as representing: backeround levels lor ali
Wetuls ws nut possible, Our backwround siles were
chosen bused on (those published by Ward er el
PUY VARE JIS & BONSALL, VA, 1806) Ald tient of
NOV) Hictal conn aned of celible frarinic sealoud in (he Por
Priv Tele Busel revoir ef South: Aratialig Soil Agasuraliuy
Reset gl Dev loporent festiiite (Aqudtie Scenes Henley
Herich SUC Vustrithe
ROSS, JR, BIDWELL. M. WILLIAMS & 1 BOLAND
(982). As noted in the texl. however there were
changes i metal coneentrauons at ull Sites.
Suigwesting that iris likely that there has been saiie
smelter influenee, However, Ward and Correll
(992) argue thal remote site, global mean and
minimuny value methods of estimating baekpround
coneentrations ure less robust than the distance
extrapolation method used to choose background
sites lor this study, Lach of the four *backgraund’
sites ci be used to determine background
voneentradions for particular metals, however no ane
site has no varahon mall meralsaneasured,
Seasonal variate
Deposition rates were significantly higher armas
sites m the summer months. At that time of year both
on and offshore winds are strongest on dhe Upper
Spencer Gul (Aust, Bureau of Meteorology 201),
Srna! & Tlaas (1997) alse reported significant
scasatial variability in suspended particulate matter
coneentrations inthe Netherlands.S | and W6 did mat
follow Uris pattern, probubly hecuuse of their more
profecied locations (Fi. 1). St depositian was
slightly higher iv the summer thu the winterte
cause for this is not known, Wh showed no
relationship between deposition und season.
probably resulting from both ils proximity to the:
smelter outtall with the resulting influence of
variability in suspended matter exiting, First Creek,
dnd its protected location
Temporal trends
The Jack of change over the three year mutiitorine
period in seston deposition rates at SI S283, 84,
WI, W3, and W7 sugsests that only natural
influences are playing a role in seston deposition at
these sites. Conversely. there was a sipnifieanet
deerease fh deposition rates al Wé, indicating either
an overall deerease in gral size being discharged
from the smelter (hrotwh inereased residence tinie ol
the effluent in the ponding process poor lo discharse)
or, altematively, that thene is continuine “dilution of
larger, nauural particles by the smaller smelter eluent
wins. Pils uceumukition of finer wrains i) areas af
deercased How regimes has been reported elsewhere
(Puig enuf 1999), commonly aeeurrine when fister
Mowing creeks meet the oper sea,
Generally, Metal levels ab all sites except the sity
Closest to the smelter outfall (Wo) deersused or
remamed unchanged over the course af the study,
This decremse ts likely to be the result of the long
term (~ 20 yeur) decrease in the levels of anietals
bem released by the smelier. his conclusion is
supported by effluent metal data (Pasmineo Pan
Pirie. unpub. dati) and by the deerase in razor fish
lisse Met) Concentrations in the Upper Spencer
Cull reported by Edyyane & Boxall!
SESTON METALS AND BIVALVES IN ITIP SPENEEIGE LE 13
The seston coneentrahion of metals at Wo.
couversely, cither increased significantly or
raiained unchuneed. over the monitoring period.
Ihe wie a number of possible reasons for the
dillerent trend in metal concentrations found al Wo
compared with fhe other stles. Firstly, ab 1s possibly
the result of the deereased deposition over the sume
period, due (a inereased retention time of the eluent
prior lo release. and correspondingly smaller gram
sizes AL all other sites the deposition mass remained
unchanged (alter seasonal variution was fken, into
weount) Sinee sthaller partiele sizes have
peoportiomly greater binding sites (Led ef al
1999), the amountol metal beeoming bound wilh the
smaller particles would result in un @verall increase
WW the (0/2 patio. Secondly, the seston oreral levels ar
this site could be reflecting shorter term changes in
ihe effluent metal Toads. While over the lone terra
(2)-years), metal louds huye decreased significantly,
Pb and Cu released Jrom the smelter have inoreased
shahtly over the shorter term (the three years al the
moniloring period [Pasininco Port Pike. unpub.
data). Allernatively. a tack of iransport trom the W6
area, a shallow, intertidal region. could be resulting
ever increasing metal toads entering the area and
Hot belt exported elewhere. Wthis ts the case metal
concentrations in the area will not change until there
is no further discharge fram the simelter and even
Hict the rate of change os likely to be very slow,
Since dere was nu discernible eeneral rend between
changes in seston metals. effluetit metal loads and
mielal binding constants for the results at We, it is
thought that a combination of these faeters 1s
iflectna the overall temporal changes detected m
the seston metal levels ar Wo,
Factors tifluencing sestan metal npeke
The proportion of metal ions diat wall beconie
bold to particulate matter, and the strength af
binding are governed by a number of tivlors, These
include the binding constant of cach metal, and the
composition of the particulate matter (Balistert d&
Muray 1OX4: Mayer 1989: Decha & Luoma 1994)
Addinonully. seston characteristics (particle size
distributron, total arsine carbon) will influence. the
rate and amount of met! becoming assoerited with
orgasm tissue, In this study no relationships were
found between either TOC content or particle size of
seston und nicial concentrations ia the bivalyes,
sugvesting that the major milvence in lissue metal
levelas the lolul concentration of the metals wi the
Sesion.
Sevan metal concvatralions and bivalve tisste
coArentatins
A primary purpose of this study wos lo assess Ue
relationship between seston mek levels inthe Upper
Spencer Gulf and optake of metals by tiltorteeding
bivalves. Positive relationships between seston and
lissue metals were detected with Ph and Zn, aldrough
the reluhonship did aot hold in seme cases when
extreme values were removed, While metals can be
taken up through the dissolved [riction or mgestion
Of particulate form (Luan 1995), of the five metals
it this study. Pb ts the one with the highest binding
constant for suspended mutter (Bahsinen & Murray
(984), This suggests thal itis fikely that the mujursty
of environmental lead will be in particule torn.
Extremes of 2n contantination (as detined by
elevated fevels of Zn inthe seston) Were reflected in
vlevated levels of ynetals ) both bivalves. However,
this relationship ooty held with ihe scallops once the
extremes were removed, sugvesting A vdtlis were
repulating 2n levels. This is supported hy the results
frowi the temporal uptake study. Raipbaw. (1995)
noted that whide mussels reflect extreme changes in
7n bioavailability. they do nol show lesser chamees
in accumulated budy Concentrations of An. Seallops
are therefore possibly better monitors of the
bioavailable fraction of Zn in the environment,
Conversely, o reluuonship between Cd m seston und
Tnussels was detected that was not present with
scallops
No relationships wen: detected between seston and
bivalve tissue Cu (all exposures) aind Mn (except
scallops in summer), There are a qumber ef possible
reusens for his, lirstly. (kh may be beesuse tie
particulate metal is not relatect to the propurtion. al’
bioavailable inelal = [possibly beeawuse the
bioavailable frachon is roainly the dissolyed
fraction). Seeondly, tissue metal may be being
reatifated by the oranism (either pre- and past
assimilation). Biyalves have been shown to be
vapable of modifying the digesdve processing of
food to reduce exposure to high. biewvailuble Cr
concentrations (Decho & Luoma 1496). Thirdly.
individital bivalve vaytability may have been too
great to deterinjne the “true” uptake or [he expesure
Time Was too short, and We measured tissne
concentrations were net representative ol tonal
possible uptoke, Additionally. number of other
fuctors (Such us the Compusition of the sestan) may
differ at each site and therefore alfeer the rekitionstiays
hehyeen toll seston tnetal wd bivalve uptake, For
example. metals associated wih natural seston are
generally assimilated at lower efficrwneres than
metals bound with unicellular aleae (Chong & Wanye
2000).
While total cadimiuin in A oa/he fas been shown to
he dependent on the locality of seallap collewtion
(Walkerera/, 1982), this was not found in this study.
Notably, scallops trom all sites (eluding thy
reference collection site) had levels of Cd above tat
recommended hy ANZPA (2000) The divestive
44 Rob ROSS. LI BIDWEELOM, WILLIAMS & J. BOLAND
Hand of the seallop Pecten maximus Linnaeus hes
been found to contain high coneentrations of Cd,
even when collected him apparently unpolluted
waters (Rainbow 1997), Rambow (1997) noted
abnormally high tissue Cd) concentrations in
scallops. and suggested that this is a resull of very
high feeding rates. Cu uptuke in mussels was more
closely related to seston Cu levels thin in scallops.
However ib has been suggested thal mussels ure not
vood indiculors a! environmental concentrations of
(ty beeause they ane good regulators of this metal
(Rainhow 1998) Allison etal. ()998) found that Z1,
Cu and Miy i pscudofueces were oflen higher than
levels in the suspended particulate matter (in
luboratery exposures), mdicating that the mussel (M7.
edulis) Wud rejected particles enriched in these
reuals.
Massel ets a surrogate scallop species
There were significant differences between species
ip both total tissue metal coneentrations and
relahonship with seston metals, Given the
differences between wo bivalve species, to assume
Metily in bivalves represent the brouwvuitluble fraction
for al species is erroneous. As Ruinhow (1995)
notes, uw Suite of biononitors, refleeting all metal
hrouvatlabilily in all available sources 1s necessary,
Using M. edulis provides the opportunity to make
comparisons between sites. which ts very important.
luowever, PB alha is un indigenous species. vind
therefore possibly more relevant to the particular
system tinder investigation,
Conclusions
Long term, trequent nonitorine of temporally
suspended seston Ts an appropriate method of
assessing (race metal disuibution. Phe only way ta
elucidate trends in metal levels is to aequire
sufficient dita to incorporate variation caused by
seasonal tiTuences, These dite indicate thal seston
metal concentrations are decrensing at most sites
within the Upper Spenece Gulf) reflecting long term
dverall load deereases from the smelter, Metal levels
m seston at the stle closest lo the smelter have nob
decreused. This ts etther'a refleetion of the shorter
term metal louding froin the smelter, possibly a result
Of smaller, metal rich particles heing released
following ponding of the effluent, ar because (here iy
litle exchange wath the open sea at His sile,
Seston Pb isa reasonable indicator of the spatial
distribution of Ph among bivalves in the Upper
Spencer Guilt, The relationships between Zn, Cd, Cu
and Mn seston and the bivalves wis variable,
although one or both bivalves were uble fo detect
extremes [or most metals.
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A NEW SPECIES OF CHOEROPHRYNE (ANURA:
MICROHYLIDAE) FROM SOUTHERN HIGHLANDS
PROVINCE, PAPUA NEW GUINEA
By STEPHEN J. RICHARDS* & THOMAS C. BURTONT
Summary
Richards, S. J. & Burton, T. C. (2003) A new species of Choerophryne (Anura:
Microhylidae) from Southern Highlands Province, Papua New Guinea. Trans. R. Soc.
S. Aust. 127(1), 47-51, 31 May, 2003.
Choerophryne allisoni sp. nov. is described from mid-montane rainforest on Mt. Sisa,
Southern Highlands Province, Papua New Guinea. It is distinguished from all
congeners by its very small size (two males 11.5 and 11.6 mm SV) and reduced snout
overhang. Males call from within leaf litter on the forest floor during and after heavy
rain. The advertisement call is a short “bleat’ with 5-6 notes, a dominant frequency of
4220-4959 Hz and a note repetition rate of 15.6-15.8/s.
Key Words: Anura, Microhylidae, Choerophryne allisoni sp. nov., Papua New
Guinea, new species, advertisement call.
Transeetions of ie Reval Sactety of 8. Avest (2003), 12701), 47-31
ANEW SPECIES OF CHOEROPHRYNE (ANURA: MICROHYLIDAE)
FROM SOUTHERN HIGHLANDS PROVINCE, PAPUA NEW GUINEA
by Srepntw J. Ricnarps’ & Thomas C. Burton’
Summary
omens. So & BoRtor, TLC. (2003) A new spevion of Choermphevce (Anum: Miccolylidae) Horn Southern
Vighlands Provinee, Papo New Cuinea. runs A, Seed. dat, 12701), 47-3). 37 May, 2003.
Chowephryne alisnne sp. nov. is deseribed from inid-mantane rainforess on Mt Sisu, Soulbern Tighhinds
Province, Papua New Guinea. Iris distinguished fran wll congeners by tis very small sie (hve tales [LS and
(Lomm SV)aind reduced snout overhang. Males call from within leat litter on the forest floor during and aller
heavy fou, Che advertisement eall isa short ‘blous with 366 notes, « dominqat frequency of 4220-4954 Th and
Wnole repention pote af 13.66 15,8/s.
Key Worpss Anura, Mierohylidue Cheerophiynie uffiseil spy tov
ndvertisenient call.
Introduction
‘The fasonomic and nomenclatural status af frogs
in the nierohylid genus Chaerophevae has been
Jubile for the past 90 years, with the number of
recox ised (axa and their generic positions changing
several times (Wandolleck 19): van Kampen 19) 4;
Parker 1934. Menzies & Tyler 1977). Ina recent
review of Chaerophevne. Kraus & Allison (2001)
recagnised twa taxa, Co prohoxecidea van Kampen
und ©) rayfeliifer (Wandolleek), and deseribed 4 third
species, ©. lonerrasirix, based on maternal from
westem Papua New Guinea.
The three species in Chocraplirvaie are small frogs
with clongated, protruding shouts (Kyaus & Allison
201). Choaeraphryne probosetdea is known tram
widely scattered locations in lowland and foothill
forests across much of northern New Guinea.
Choerophivuic rostellifer is known trom the noarth-
coast ranges and Iunistein Mountains in northern
Papua New Guinea. and a single location on {he
south side of the Star Mountains, Chueraphryne
foneirastris has been reported only trom Mt Menuwa
in the Bewani Mountains (Kraus & Allison 2001). fh
[his paper we desenibe a fourth Cheeraphryne thal
diflers trom congeners in ils extremely small size,
relatively shorter snout, und ditlerent advertscmicnt
call.
Methods
Measurements (to 0.) tom) were made with dial
calipers und a ymeroscope fitted with an ocular
nmucrometer and follow Zweilel (1985) and Zweilel
Vertebrates Depurimcnt. Seu Auatrilian Muse, Neri) Mapes
Adlelijde SA, Sn
Departhient of Phares) ba brabe Minversety
PO, Boy 19) Bendige, ¥js, 3547
Hearilipas
Papua New Criinea, new species,
& Parker (1989) with additional measurements from
Kraus & Allisow (2001). They were snout-vent
length (SV), tibia feneth (TL )arm length (AL), head
widih at the angle of the juws (TIW), head length its
a straight-line distinee from angle of jaws lo tip of
snow (HL). eye diameter (EYER), tmter-nariul
distance (IN), eye-naris. distanee (EN), snout
overhang (30), width of third Nager dise at right
angle to digital axis (SED) and width of penultimate
phalans of third finger (SVP), width of First finger
dise (JF ID) and first phalany (1 FP). and of fourth toe
dise (47D) and fourth toc phalanx (47TP), as tor third
linger, The lympanunt af the mew species 1s
indistinet. precluding = uveurate measurements,
Superficial dissection ofthe pectoral virdle and snout
was undertaken to determine the geneyic statis
Advertisement calls were recorded with a Sony Pro-
Walkinan tape recorder and Sony PCM-2200
microphone, and 13 calls from two tales were
analyzed using the AVISOPT SAS-Lab Pro sound
analysis program. Temperatures adjacent to calling
males were measured with a Miller & Weber quick-
reading thermometer, Specimens are deposited in the
South Australian, Museum, Adelaide (SAMA) and
the University of Papua New Gitinea (UP).
Results
Generic Naenosts
The new species licks clavieles or any pre-vonal
elements of the pectoral girdle. Phe ote ramus of the
squamosul is much clongated, The mm. depressor
weindihulae arises trom this ramus, but lacks any
origin from the dorsal fiseia, Reduction of the
pectoral girdle is shared by — A/berfons,
Aphantophryne. Choerophryne, Cophicalus atu
Copii, and the conditions of the ole ramus and the
in. depressor mandiiee are shared by lberivius
and Choeraplirvne alone. The proeesses of the
4s SO RICHARDS & 1.0 BURTON
premaaxitlave ure dirveled anteriorly: a character
unique to Choeniphrie.
Choerophryne altisant sp. wv.
(FIGS 1-4)
Holowpes 3 SAMA RS56075, Mt Sisa, Southern
Highlands Proyinee, Papua New Ghumea, O° 07,547!
S, 142° 46.091" E, allitude 2000 m_ 204.1999, Coll,
S.J. Riehurds,
Paratype, & UP 9962, same data as for lolotype.
Definition
Avery small species (fd U1.5-11.6 mim SV) with
A moderately elongated snout (SO/SV 0,034-0,035)
and short loys (TLS ¥ 0.34); first Finger reduced, tips
of digits rounded or expanded inte small dises. disc
of foorth tae larger than dise of third Finger:
advertisement dal OF S-6 nates each with 2-7 pulses.
A B
bine b. Cheerplavite alliseal sp. toy, Dorsal view of v\-
holatvpe (SAMA RS56075) anu B. paratype (TP 9967)
Seule War) Sy
fig, 2. Choerapheyne aliisoni sp. noy. i tite (holatype,
SAMA 56075), SV 11.6 tam
Deseriion af Halatwpe
Adult <¢ (with veoul slits and calling wheu
calleeted) with the following measurements (rim)
and proportions, Those of the adult 4 paratype are
viven im parentheses. SV 1.6 (11.5). TL 3.8 (4.8)
AL 4.2 (4.3): TW 4.4 (445) 1 3.9 (37 EN Lot
(LI IN OS (O08) EYER 15 (14): SO O04 (4h SFP
3 (0.3); 3PD 04 (04): TPP (L25 (0.25): PD 25
(U.25): 4TP 0.4 (4): VED OS (0.5): TL/SY U33
(0.33), HWiSV 0,39 (0.39): TIL/SVY (L238 (O28):
HLFIW 0.71 (0.71), EXSY O13 (0.12)0 IN/SV
O07 (0.07); ENISVY O09 (O10) SO/SYV 0.034
(O.035); EN/IN Las (138): TDASV 0.04 (0,04):
IFD/SV 0.08 (0.03)
Head moderately narrow GPWiSY 0.39); snout
harrow, Clonale, projecting well beyond lower jaw:
conthus vostralis broadly rounded, slightly curved.
loreal region shghtly concave, nearly verticals eve to
naris distanee yreater than interdarial span Cb NAN
1,34), ynpanie membrane poorly defined, posterior
and dorsal poriions of annulus indistinet: two palatal
ridges, anterior ridge low, indistinct, posterior ridge
with elevated, very distinet tubereles,
Relative lengths of fingers %-4e2> 2 fest Viner
reduced, reaching, only to base of second. without
expanded tenminal dise but with faith todieation of
cirenm-murginal groove; tips ol fingers 2-4 nat or
only slightly expanded, with distihet cireumn-
marginal grooves; fingers without subsarticular
tuboreles ur webbing. Relative lengths of toes
43-52 >1) first foe partially fused to second) tips
of digits rounded or expanded jrto small pound dises
wilh circum-marginal grooves; lees wilhoul
subartigular tubereles or webbing, no metatarsal
tubercles: expansion of terminal dises greatest on
finger 3 and toe 4: fourth toe dise larger than third
Hiiwer cise,
Skin shehtly rugose dorsally im life, smooth
dorsally excep! for few low, scatlered tubercles in
preservative (Pigs 1,2); shehtly granular ventralby
Colour and patrerns tn life. dorsum dark brown,
speckled laterally with) small white spots und
dorsally with scattered red pigments; snout anterior
to and below eve darker than rest of dorsany an
rerular very dark brown bar extends fram behind
cach eye postero-dorsally orlo dorsuin, converging
at vertebral line and forming a broad V2 Dark bar
continues posteriorly as a broken vertebral line
before diverging, again as dar inverted V-shaped
stripe. exicoding postero-hiterally from mid-lne past
lumbar region and reaching groin Front groin it
continues Hansversely across cach thigh and Ubia. A
triangular patch of paler ereyebrown extends fromm at
line between eyes to anterior edve of V-shaped
stripe. Dark brown to black pizientation surrounds
vent) a pile mid-vertebral stripe From tip oF snout
NEW SPECIES OF FROG FROM NEW GUINEA 4
diverges above vent and continues laterally along
posterior edge of thigh and tibia: darker brown
pigmentation forms a poorly defined short stripe
laterally. Ventrally with dense brown pigmentation
Fin. 4. Choeraphryvne alliveni sp. nov A, Palmar view of
lef hand. B. Plantar view of right foot of paratype
(UP9962). Plantar view has been inverted to permit
direct comparison with palmar view, Scale bar
}imm
on belly; brown pigmentation disrupted by numerous
unpiginented spots on throat. and by large
unpigmented patches on ventral surfaces of thighs
and arms: a pale stripe extends from tip of lower jaw
to vent, and a second pale stripe extends at right
angles across chest from elhow to elbow. Palmar and
plantar surfaces with extensive but patchy brown
pigmentation. Iris pale gold flecked with dark brown,
Colour in preservative same as above except that
scattered red pigments and darker pigment laterally
on snout have faded.
Veriation
Measurements and proportions of the paratype are
similar to holotype (see above), The paratype differs
from the holotype in having a pale diamond-shaped
inter-ocular bar surrounded by a dark-brown border,
und in the following features of dorsal colouration:
an hour-glass shaped patch of dark brown
pigmentation across centre of ihe dorsum results in
two large, triangular grey-brown patches dorso-
laterally and another paler patch postero-dorsally;
two pale spots slightly anterior to the lumbar region;
an indistinct dark brown stripe originates at the
dorsal midline posterior to the pale lumbar spots and
diverges postero-laterally, extending across the thigh
and tibia: patches of dense, dark brown mottling on
the dorsal surfaces of the limbs. The first finger on
one hand extends only to base of second finger, but
on other hand extends about half-way along second
finger (Fig. 3), First toe extensively fused to second
toe (Fig. 3)
ddvertisement call
The call is a single short *bleat’ with 5-6 notes.
Two frogs (Table |) called at intervals of 4.5-6.8 s.
Each note consists of 2-7 pulses, although most notes
p=
Frequency kHz)
Nwo fh anwn cw
0.1 0.2 0.3
Time (s)
Fig. 4. Audiospectrogram of a single call ol Choerophrvne
allivoni sp. noy. holotype (SAMA R56075).
Ww 4, RICHARDS & PO BURTON
hive 3-6 pulses and there isa clear trend for the
muinber of pulses lo increase in the two terminal
noles oF euch eall (Fig, +). The dominant frequency
is 4220-4959 He. the pulse rate is 125-300/s and the
Wote repeLuen rate is 15.6-15.8/8. Call parameters
tire presented ih Table | and a single call is
iHustruted in Freure 4.
Cumparixan With dther speckles
Choerophivne allison’ is the smallest member of
the venus and is unlikely to he confused with any
other species. Co raste/tifer shares with allisani a
substuntially reduced first finger, but differs from
(he few speeies in its larger size (SY 13,9-17,8),
longer lees (TL/SV 0.44-0,54 vs (32-033; Kritus &
Allison 2001) and advertisement call. The vall of.
rosiellifer hus siznifieantly more pulses/note (~ 14 vs
2-7 in adlisent), a lower donut frequeney (~3570
He vs 4200-5000) and slower nate repetition rate
(-7'S vs ~15/5). The opposite trend in note tate
would be expected i temperature were responsibly
lor (hese differences because Callison’ recordings
were mide al substantially lower temperatures than
those of ©. pastel/ifer, Advertisement valls will alsa
serve to distinuuish the new species Trom calliny
male ©. laierostris and C, probascidea, (he call of
C. probuscidea consists of three notes ullered atu
rate Of 1.59 notes per second and tas a dominant
frequeney of around 3230 Ha. The cull of ©.
Jangirostrix has 3-4 notes delivered ata rate of ubout
07's and w dominant frequeney around 3100 tle,
Fiueh pote consists of } 1-14 pulses, Chovrophrvne
whwentis turther distinguished fram ©. donyinasily
and C. prahascidea by its extremely sinall size and
(he following characters: first finger reduced (vs hot
reduced, und with a distinet terminal dise). and
snout overhang moderate (SO/SVY O04) ys snout
averhiing long (07-0010 for Co prohaseidoic, and
O-ONT for €) lontdroxtris),
Distibution
Known only rent the type loeality ih iid-
montine rainlorest on Mt Sisa. Souther Mighlanas
Province, Papua New Guinea,
Tanith bo didvenisemuni aalliinecieranes af Chuerdphevic allison spo aay
Hahitatand habiis
Choerophryie allisoné called trom within beat
hitter on the forest Moor afler heavy ruin at night, No
culling was heard on dry nights, and Wo analy
were observed on or above the litter, The type
locality is ona broad, gently sloping spur runoing to
the north-east of Mt Sisa suimnit ridge. At this
allitude (2000 m) the forest is in a transition zone
between Nothafauns-dominated yvexetalion with a
rather open understorey, and a more dense higher
altitude moss forest. The species wis absent from
stunted moss forest neur the summit of Mt Sisa at
2500 m asl,
Etymalagy
This species is named for Allen Allison of the
Bishop Miuscum, Hawaii, in recognition of fis
contributions to New Guinea herpetology and in
pratitude for his assistanve to the authors over many
years. The irony in a troy of such small stature
being endowed with Allison’s name has not escaped
the authors” allention,
Discussion
The deseriplion of ©, a/liven? brings to four the
number of Species known dn this gens
Relationships aniong the species ace obseure (Kraus
& Allison 2001) and the discovery af C. allivens
provides lide further insight. The new species rst
closely resembles C. ras/e/lifer in having. reduced
first finger, and its size is closest to that speeies,
However mm its very short limbs, reduecd snout
overhang and poorly developed digital dises ©,
allixoni ix quite distinet from is three congeners,
These characters presumably refleot the terrestrial
and pear-fossorial habits of this species. Both of the
specimens collected, and several others. heard
calling at the type locality, were under leaves on the
forest floor, Co loirastels, CL prohaseidea and C,
rosrellifer are at least partially scansorial, and use
their thoderutely long limbs and expanded diet
dises lo climb inte low vegetation. In-contrast the
short legs and poorly developed discs of ©. allison
Dativatre presented ais mean (SD) ani mune,
Temperate was reeirded ahour | en below the litter siipfice adjacent i calling males
Freeh Te, Lor ell eallrep, notes; note note rep, pulses pulse dominant
wills Jen hae eall length rate rep. rate frequeney
(ally (nules!s) (pulses's) (He)
SAMA [5.0 7 UW 2TH COSY) TAT 5 (0159 [Sb (0.317) 2-7 236.92 (3724) 4620
KSG6075 Ww273-0,286 (U,0053) 15.32-16.26 IS3-S4-300.00 (LSto84
008-0, 028 4220-4N KS
he A 15.6 HWA UObaT) 23s 6 tLolb4 LSS VF OTN 3671) 4759
0334-0346 (O.00S9) (W358) [25.00-297.03 PSD
W.009-0,031 [S.43-1A34
HYG Ig
NEW SPECIES OF FROG FROM NEW GUINEA S|
are typical of microhylid frogs leading a terrestrial
or semi-fossorial existence.
Acknowledgments
Type material was collected during a survey
organized and funded by World Wildlife Fund-LSA
(Moro, PNG). SJR is particularly grateful to Tanya
Leary, Ted Mamu, Dan McCall and Max Kuduk of
WWF for their assistance and support. Libe and
Negini from the local Hult community were excellent
assistants during the field survey. Rose Singadan and
Paulus Kei (University of PNG) provided support in
Port Moresby and John Genalogani (Department of
Environment and Conservation) assisted with the
export permit. Jim Robins of the National Research
Institute has been most helpful with Research Visas
during the course of SJR’s research in PNG. SJR
was supported by a grant from the Violet Scott Estate
during preparation of this manuscript, and additional
funding for laboratory equipment was provided by
the Mark Mitchell Research Foundation.
References
Kraus, PF. & ALLISON, A. (2001) A review of the endemic
New Guinea microhylid frog genus Choerophrvie,
Herpetologica 57, 214-232.
Mrnzivs, J. 1. & Tyter, M. J. (1977) The systematics and
adaptations of some Papuan microhylid frogs which live
underground.,/. Zool. (Lond.) 183, 431-464,
Parker, He W. (1936) A monograph of the frogs of the
family Microhylidae. (British Museum, London).
VAN Kampen, PN. (1914) Zur fauna von nord-Neuguinea.
Nach den Sammiungen von Dr. PN. van Kampen und K.
Gjellerup aus den Jahren (910 und 19LL. Zool. Jahrb.
(Syst), 37, 365-378.
WANDOLLECK, B. (19LL) Die Amphibien und Reptilien der
papuanischen Ausbete Dr. Schlaginhaufens. Abs. Ber
Kon. Zool. Anth-Ethn, Mus, Dres. 13, 1-15.
ZWeiFeL, R. G, (1985) Australian frogs of the family
Microhylidae, Bull Am. Mus. Nat. Hist. 182, 265-388.
ZWerEL, R. G. & Parker, F. (1989) New species of
microhylid frogs from the Owen Stanley Mountains of
Papua New Guinea with resurrection of the genus
Aphantophrvne. 4m, Mus. Novit. 2954, 1-19,
THE FAIRY SHRIMP GENUS BRANCHINELLA SAYCE, 1903
(CRUSTACEA: ANOSTRACA: THAMNOCEPHALIDAE) IN
SOUTH AUSTRALIA AND THE NORTHERN TERRITORY,
INCLUDING DESCRIPTIONS OF THREE NEW SPECIES.
By BRIAN V. TiMMs! & MICHAEL C. GEDDES?
Summary
Timms, B. V, & Geddes, M. C., (2003). The Fairy Shrimp genus Branchinella Sayce,
1903 (Crustacea: Anostraca: Thamnocephalidae) in South Australia and the Northern
Territory, including descriptions of three new species. Trans. R. Soc. S. Aust. 127(1),
53-68, 31 May, 2003.
The genus Branchinella is represented by nine species in each of South Australia and
the Northern Territory, 13 species in all and with just one species endemic in each.
The most widespread and common species is B. australiensis, while B. dubia, B. latzi,
B. lyrifera and B. pinnata are locally common. Two of the new species (B. insularis n.
sp. and B. tyleri n. sp.) occur in limited areas and the third (B. lamellata n. sp.) is a
member of a group of arid-zone species. Despite a great increase in the number of
species reported from both jurisdictions, large areas are still inadequately surveyed.
Key Words: Branchinella, new species, biogeography, environmental ecology,
gnammas.
Tretiiscte Hal af he Bowad sacle af ds. Alést (2003), H2701), 53-68,
THE FAIRY SHRIMP GENUS BRANCHINELLA SAYCE, 1903 (CRUSTACEA:
ANOSTRACA: THAMNOCEPHALIDAE) IN SOUTH AUSTRALIA AND THE
NORTHERN TERRITORY, INCLUDING DESCRIPTIONS OF THREE NEW SPECIES,
by Brian V. Timms! & MICHAEL C. GeDpEs*
Summary
Tivis, IV & Ca bibs. MLC. (2003), The Pairy Shitinp genus Branehined/g Sayce, 1903 (Crustacea Angsteated:
Hhanmocephaldacy in South Australia and the Northern Territory, including descriptions of three new species.
Trans, R, Sac. 8. dust 1271), 53-68, 3 May, 2003,
The genus Hranchiaelie is represented by nine species in each of South Australia and the Norther Territory,
J4 species i all anc with just one species endemic in each, The most widespread and common species ts
AL anstratiensis, while B dubia, B. latsi, B. Wife and B piniatn are locally Common, Two of the new species
(B. ihwulaviy iospand B. tyleré asp.) occur in limited arcas and the third (2. lamellae, sp.) is a member ofa
group al and-sone species. Despite a great inerease in the number of species reported (rom both jurisdictions.
lanes areas gre sll madequitely surveyed
Kry Worps: Branchmella, new species. biogeography, envireninental ceolouy, wnanimas.
Introduction
Currently there are 26 deseribed species of
Branchinella in Austratia (Geddes 198}; Belk &
Brtek 1995; Timms 2001, In Press). Only three and
SIX Species respectively (otal seven) have been
reported from South Austraha and the Northern
lerritory (Cieddes 1981) and none are endemic.
Possibly the reason for this lack of diversity is the
pauvity of collections (7 and 35 respectively) and the
Tinted coverage of both regions, Over the last 20
years mary more collections. have bevome available
(46 und 23 respectively), wilh many from previously
unsampled areas. These colleetions contain. three
Hew species and many new records. The aim of this
paper is to document this diversity. though many
arens OF bulh regions remain to be explored for
UMOSLACANS-
Materials
Most ol the uddiional collections are housed jn the
south Australinn Museunr (herealter SAM) or iit the
persomal collections of the authors, A few ure stored
in the Maseunm and Art Gallery ol the Northern
Territory (hereafter MAGNT), the Western
Australian Museum (WAM) and the Australian
Museum (AM) in Sydney. Many of these colleetions
dre front the wetieral public, but significant samples
lrom remote areas were provided by PL Aorteldt & BP.
Cockerham (Gawler Ranges, SA) MJ.
USeliibot Liaviramnental and Le Suigdees, Laieesity al Neweasle
Callaghan, SSW, 2808, cri h woh imskamewestythe eli silt
Deputent oF Ravitaniaental Binlowy, Civiversiiy of Adehote,
Adeline, SA, S005) cruil Heke vedesrtdelyile eligi
lylor
(Vietoria and Roper Rivers, NT: Andamooka, SA), P
De Deckker (Kangaroo Is, SA) and the senior author
(Lake Eyre environs, SA), Collvetions mentioned in
Geddes (O81) are listed under Geddes J98) So or
Gediles 198) NT, with details available in that
publication. The additional material is listed under
New Material Sad or New Material NT and all
relevant date given. Site locations of the eolleetions
previously mentioned in Cieddes (1981) and of the
new miterial are shows ia FIG 1, Synonymies
include main entries only, full synonymies are given
in Geddes (T9RT).
‘Taxonomy
Tramnocephalidae
Brenchinclla Sayee. 903.
Branchinetla affiniy Linder
B. affine Linder, 1941, pp 257-61. fiz. 36: Geddes.
JOR), pp 271-2. He lO,
Records
New Material Sd: Dam 5 km south of Yarnea
Homestead, Gawler Ranges, 32° 25'S, 135° 28! bs,
coll Po Aerleldt & PL Cockerham, I4-s-84, SAM
CO050; pool cust of Pandie Pandie, 26° 11'S, a9"
31 Ro col) BV, 10-sii-0e Gidgee Ck near Neales
R.. 27° SRS. 136" 04° EL P Tudson, 2-iv-01,
Birrabiamt Waterhole, west of Lake Pyre, 28" 13'S,
J95° 32! 1. Pritehared, 2-81-01, New Material NT
Eva Downs Station! 8° 005 S) 134° 52" E, colle
Lita. P8-iv-70; Napperby Station, 22" 54’ §, 132"
48" B. coll P. Lata, 21-v-70: Temporary swamp 7
kin 1c of Docker RL. 25° 04'S, 129° 40" bod. Blyth,
J-vn-79; trockhale on Uluru, 25° 21S, 131" 03) b,
Se B. V. TIMMS & M. C. GEDDES
Facet, AE A
Se Tl,
seis ol
DARWIN as
got
SNKATHERINE
&
\ ae
NORTHERN
ee.
TENNANT CREE
®
4
@.
at
SPALICE SPRINGS
TERRITORY
|
SOUTH
i
AUSTRALIA
lametres
Riecards
@ Old (41)
A New (5) ‘ me S f
\BOURNE
Ca
Fig. |. Map of South Australia and the Northern Territory showing distribution of localities cited by Geddes 1981 and the
new localities cited in the text,
THE PATRY SURIMIEOINUS AAINCTUNALL A SAYCE 55
coll J, Blyth. 6-vii-79) same site, coll. Horner & 1.
Archibald, 24-7835 same site, coll D2 Carter. 4vii-
0}. same site coll 1. Annable. T0-yii-0b
Carine nls
Some of the present material exhibited stnificant
differences from the recorded mye oF variability for
the speeies (Geddes 1981). All (he specimens fom
Doeker Ro and Nupperby Station in the NT lacked
the medial swellinys-on the proximal segmenp of the
sevond antennae. ‘The sume specimens also tad only
a few small lateral protrusions on the pseude-
scuinents OF the frontal appendage, Otherwise Hey
had the typical features OF Bo a/firiy.
These are the first records of this species in both
SA and WT Morswadely distributed ats it is elsewhere
i Australia (Gieddes 1981; Vinims & Sanders In
Press: Timmins fn Press). (hough in SA it seems to be
absent from the far south and in the NT from the far
north (FIG 2), Toffler occurs m farbid waters, but
hay also been found in the clear waters of pools oh
hop ah Chora,
Branchinella atbored Geddes
Rronchinellu arboved Geddes. 1981, p 285-X. fig, 17.
Records
New Material Sat Gydeee Ch near Newles R.. 27°
Se. (30° 048) FP. Ludson, 2-1v-01,
Now Material NT Temporary swamp 67 Kit Th ot
Docker R., 25° 04S. 129° 40° LoS, Blyth. levai-79.
Cs
Despite these records being up to 1700 kin west of
the present known dtstabution of aw NSW-sw Qld
(Geddes 1YKL Timms & Sanders In Press). all
specimens ares will) the deseription of the type
mmulerial, This species is uncommon in SAand NI} atl
these ure the first records ait in both areas (FIG 3).
Branchinella unsivatieusis (Richters)
Brune hipis australicusix Richters, 1876, py daed, pal 3.
Branehinella waustratrenses (Raghlerst, Save,
1903. pp. 234-9. pl.30: Linder, 1941, pp. 256-7. fiz,
45: Geddes, OSL. pp 256-00. figs 12,
Reeciidls.
Geddes 1881 Sas pool near Mt Sarah, 26" 55'S,
35° 5°12 farm dam near Caprieton, 32° 26'S, 13a°
32" FE: Upper Onkaringa Ck (ie. Onkaparinga Ck?)
cu AN OS'S, 138° 45" Ey Bordertown. 36° 18" 5,
0° 46" bk, WAM © 12408. Geilder 1987 NT dam.
Brunciie Downs, 8" 46" S. (337 52" FE: dan al
Warrezo Mine, Temmunt Creck, [9° 24° 8. (33° 53°
fs pool near Lhitehes Ck Mine. 20° 44'S. (35° fa!
I Yaluogarrie- Ck, Mt, Doreen Str, 21° 49'S. 131"
10) 1 Napperby Sm, 22° 45° S. 132° 29" Ey cement
dam, Garden Stn, 23" 24’ S, 134° 12’ LE. New
Material Sale Couper Ck, 28° 3865S, 138° 48! b coll
Mrs Hiller, xi-!904, SAM C6046: pool. Elaabeth
Downs, Adelaide, 44° 42'S, 138° 41° LE. eal. Miss
Poemann, 25-v-70. SAM Co043, pool, Holden Hill
Adelaide. 34° 31'S. 138" 40° Ecol, W. Weaver, 9-
ix-71, SAM Co045; Eucala Ck. (7 kot W Pimba, 31
12'S, (36" 40° EL coll, A. Bdwatrds, 2-s-75. SAM
CO0AS: pool few kin SW Bool Lagoon, 37° 07'S,
140° 41° E. coll J, Glover, 24-s-78, SAM Could: a
samphire swamp, & kn alone track ftom Olympic
Duin to Lake Blanche, 30° 29'S, 136° 4s" be 11a
81; Noaded vrasslagd 18.7 koi along track Olympic
Dam to Andamanka. 30° 27'S, 146° a9" E, 1251-81;
cate wallow 26.4 ke along track Olympre Dam to
Andambala, 30° 29' 8, 137° 02" b. 12-41-81 all coll
M. J. Pyles Swamp dam, Sturt Vale Station, 33° 14"
S, 139° 93" BE, coll, Ny tdwards, 27-<-82) stonew lI
dam near Hiltapa Homestead, Gawler Ra. 32° 10'S,
(35°04 BE. 14-8 SAM C6036; dum 3 kin boot
Yurea blonrestead, Gawler Ra, 32° 25'S, }35° 2a"
Bo ddex-84. SAM C6037; Woolshed Dani oer
Yarnea Homestead. Gawler Ra. 32° 23'S. )a5° 3"
I. t4-x-84, SAM C6039; daniat Yarnea Homestead,
Gawler Ra. 32° 23'S. 135° 31° B. 1S-x-k4d, SAM
Cée040; swamp 4 hin kb of Lino Homestead, Crawler
Ra. 32°39" S. 136° 43" 1, TRex-b4. SAM Cau3s, all
voll, PB Aerfeldt & Po Cockerham: Marshes Well
Dam, Nonning Station, Gawler Ra 32° 24S.) a8"
25' EL coll, To Palssen, (2-x-85, SAM C641:
Lynwood Park, via Penola, 37° 40" S. 140 57 Ob,
coll, R-G. Beck. 6-x-84 Yelloch Ck. Carolside Stn,
37 00° S, 140° 37° Jo coll. Vo Tsymbal and D
Schulze, 12-y-98; dam at Hawker. 31° 33° 5S, 138°
25° coll, N, de Pren, me0U, SAM CO042;
Birdsville ‘Vrack near Bobbiemongie ‘Turnolh 26°
35'S, 139° 37° Eocall, BVT, 9-98-00: Gideee Ok
near Neales Re, 277 Sa’ S. 136° 04° LE. coll. Pe
Hudsun, 2-iv-Ol: claypuns at Millers Ch, near
Coward Springs, 29° 24'S. 136° 47° FE, no coll, no
due, SAM '6040. Mew Warerat NT: Meunt
Doreen, Central Australia, 21° 40" $2 13d7 10 BL
woh dnkinown, 28-v-70, MAGNET Crts67) [iiitst
Biull. 200 kay Woof Alice Springs, 23° 23'S. 1S
02° Bocoll, PEM Is. 1-87,
Comments
All of the pew material examined lay willun
known variations for the speeies. 1s by far the most
coramon species in the eolleetivis of the South
Australian Museum. This is probably becwuse it is
the largest fairy shrimp inthe study urea and henee
more easily seen by the public. plus if fives in many
habitat types. The 32 records.ol jim SA wid ST are
widely disinibured (PIG +4), bul there are none im the
most northerly parts, a similar pattern lo that in WA
(Timms In Presso.
36 B.V. TIMMS & M. C. GEDDES
ed 3 »
OB affinis (8)
#6 insularis (2)
a6 lamellata (1)
EIB. pinnata = (8)
‘, 465 arborea (2)
OB dubia (14)
@ B. latz) (10)
©68 australiansis (32) 46. budjiti (2)
a@Booccidentals © B. lyrifera (17)
@ £. tyler (4) @® 6. probiscida (4) \
Figs 2-5, Fig. 2. Distribution map of B. affinis, B. insularis, B/amellata and B. pinnata in the study area. Fig, 3. Distribution
map of B. arborea, B. dubia and B. larzi in the study area. Fig 4, Distribution map of B. australiensis, B. occidentalis and
8. tyleri in the study area. Fig. 5, Distribution map of B. budjiti, B. Iyrifera and B. probiscida in the study area.
DHE PATRY SHRIMP OENLS RR AVOTINELLA SAYCE
Branchinella budjiti Vins
Branchinella budjiti Timms, 2000. pp. 247-50.
fig. |
Records
New Material Sy yoadside pool ca. 70 kim s
Codnadatla. 27" 50'S. 135° 44° EL coll, BVT. 20-xy-
(0; Gidgee CK near Newles R. 27° 58" 8, 136" 04 by
coll, PL Ladson, 2-iv-0).
Camnenly
Specimens in both collections ure a httle different
from the maternal deseribed from the Paroa (Timms
2001), The diagrams. (FIG 6) are of speemmens from
Oodnadalt, though the same feanires. were seen on
the Neales material, On (he second anleniae (FIG
GA), (he antennal appendage ar the junction between
proxinml and distal segment is proportionally bigger
(han in Paroo specimens — it is about hall of the
Jenplh oF distal segment. whereas (7 Paroo specimens
iis about one third of the length, Nivierences in the
(wo drawinys are easily reconetled when itis realised
the Qodnaditta specimen is viewed Veutrally and the
Puroo dype material is drawit in dorsal view. The
distal sclerotivedl segment of the second antenna in
the Oodnadatta speemmen is shaped differently to that
in the Parow specimens - there is hardly a medial
brulee. and the 20° bend gear the base is more
inedially placed in the Qadnadatta specimens.
‘The lrontal appendage is also different (FIG 6C),
fh the Paroo material itis distinerly forked into two
rychinwulac branches with anvle between the two
about (00° In Oodnadalla specimens the bye
branches are are not rectangular-shuped and are
joingd distally by an even conedye surface. The
Nuch lareer central area of the Dodnadatta. lorm is
completely devoid oF ventral papillae compared 10 4
central drew in the Paroo specimens where papillae
are less numerous, There is also litte differentiation
of ventral papillae i Oodnadatta form cumpured
wilht-a murked diflerchee in size between (hose on
the central rib and those on the lamella.
Ihe Jinal significant difference ts on the
mediodistal corner of the endopodite of the Nth
thoracopad (PIG 6). In material from ihe Parge there
are about 10 sere with rounded knobs on one side
basally (FIG 6D). bubin the Qadnadutia specimens
there are only ca + such knobs, though they are
loner (ETC 613).
li is possible these Oodnadalta speeiuens
represent a variety oe subspecies of Bo hyulfrii, bul
further specimens and study is needed helore u
deeision ean be made, They live in ponds/claypans
northwest of Lake Eyre of similar bigh turbidity as
the habits Bo budji? sensu strivtus occupics in the
Puroo (Timms & Sanders fi Press), This isthe first
record of this species pulside the Paroo,
a)
=
Branchinetla dibia (Sehwart)
Podoohirus dubtus Schwarte. 1917. pp. 78, fig 4
Kranehinella dubia (Schwartz), Smimav. 1932,
py. 15i-2: Linder, L941, pp. 268-9; CGieddes, 1981 pp.
275-8, Nig. 12,
Reeords
Geddes 1081 NT Cherub Ch, Eva Downs Slit, 17°
59'S, 134° Ss’ fh. MAGN Cr48ox; Llomestead
Dam. Fva Downs St. 18 00'S, 134° 52) BAM
P 19233: Carella Ck. Brunette Downs Stn. 14 22°.
135° 53° B: Dino Waterhole, Brunette Downs Stn.
}8° 43'S. [136° OX! Er Brumette Ck. 18" 33'S, 136"
07’ [. Gidyeu Ch, Brunette Downs St, TR? 34° 5,
135° 58) E: Brunene Ck.1R° 39'S, 135° 57" E; dam,
Beonette Downs Sin. 18" 465 S, 145° 51! Es dan at
Warren Mine, Tennant Creek, 19° 235. 133°S3' bs
Milne BR. Georgina Stn. 21° 33° 8. 137° 07" G, New
Materia’ NT. pool 30 kan § of the Vicloria/Delumere
Highway junetion, 15° 43! $. 14d" 39" TL Tai S3:
pool by Roper R. Rd, 10 km oe Stuart Highway, 15°
O'S. 133" 105 i, 134i-83; pool by Stuart Highway,
145 kms Katherine 15° 167 S$. 1337 OB, 13-11-83;
pool by ‘Stuart Highway, 21 kit N of Day Waters
tumoff, [6° 26" S. 1330 22° Ly 1347-83: all coll. by
MJ, Tyler: swamp. Keep R,Nat Pk. 15°41" 8, [20°
02" LC coll. MJ. Tyler, M_- Davies, G, Walson, 8-11-86,
Comments
8, dubia is coanmon i) the verth of the Northern
‘Territory (PIG) 3), as ib is the in north af Western
Austvalia (Timms In Press) and to a lesser extent in
Horth Onieensland (Creddes P98).
Branchinella insalariy sp. noy,
(FIG 7)
Tipe material
Hololype: one male, length 13.5 mm. catalogue
number C028 SAMs Allotype one Jemiule, length
unknown as last part of abdomen missing, C6029
SAM: Paratypes: 2 males, lengths unknown us last
part af abdomen missing, C6030 SAM,
Type locality
A small lake tert of Raratta Lomestead,
Kangaroo Island. SA, 35° 58" 8, 136° 57’ B, coll, P.
De Dekker 10-«-78.-
Osher Material
Thiree males frony a freshwater swanip just north of
Salt Lagoon, Mungareo Island, SA. 35° SO" S. 137"
38) EL coll, P. De Deekker Sx-74, C6037 SAM,
Eiynatogey
The name teters to the fuet beth peeords for this
species came from an iskind.
58 B. V. TIMMS & M. C. GEDDES
Vig, 6, Male Branchinella budji’ from Oodnadatta area, (a) Second antennac, (b) endopodite of Sth thoraeopod, (c) frontal
appendage, (Ud) male B, budjita from claypan at Muella Station, nw of Bourke, endopodite of Sth thoracopod, (e) 8,
famellaia n. sp. from claypan at Bindegolly lakes, second antennae, (f) frontal appendage.
THE FAIRY SHRIMP GENUS BRANCHINELLA SAYCE 59
Fig. 7. Branchinella insularis n. sp. A-D male holotype, E female allotype. (a) first and second antennae. (b) frontal
appendage. (c) rigid portion of penes, (d) Sth thoracopod without first anterior seta of endite | and posterior sctae of all
endites and exopodite, (¢) head.
(ith KV TIMMS & M,C, GEDDDS
Description of mate
First gantemuae (FIG 7A) slightly longer than
proximal segment of second anteniaes apes. bearing
two shork huirlike setue apically and three longer
ham -like setae sublerminally, Sceond antennal (FIG
7A) proximal segments fused basalamediully, distal
huives free and parallel ta body axis, Distal Tree
portions eylindrical. each with «medial large
rounded protuberance bearing very small papillae.
Proximal segment of second antenna bearing
Incdindistally an antennal appendage in the same
anid ay distal segment olf secand antenna and ea (4
times the length of the distal sewment. Apes of
antennal appendage pomted and with a small
papillae subapically. Distal segment arenate both m
dorsal (FLG 7A) anid lateral view (oat shower), tls
medial surface rounded wilh a few werk fans verse
ridges on distal hull apex expanded to lurm a knob.
Frontal appendage (FIG 7B) aboot same length as
second antennae, (eunk wide wilh lwo simple
branches, subequal in length. Most trunk aod braneh
pscudoseginents well defined, cavh pseudoseement
with a lateral digititorm ventrally direeted
protrusion, tehminating ina medially curved spine,
Protrusions longest proximally on the trunk. and on
the basolateral part of the branches. Basal sie ul
euch brunch expanded laterally und nearly sy wide us
jhe base of the trunk, but narrowine apically sod
become symmetrical lor much ofits length. Apex
ofench branch blunt
Rigid basal portion uf penes (PIG 7C) luraely
fused and bulbous ventrally, with two separate
(ubular projections reaching (2/3rds) under the nent
postpenital sepmient, A small rounded lateral lobe nn
the postenolatenil partion of the bulbous swelling oF
the basal portions. Structare of eversible portion of
peties UdkKNOWH,
Filth thoraenpod (ice 7B) with both ies ana
second endiles large and evenly convex. endite |
vboul 3 times larger than endile 2, Endites 3-3 small
asymnieirical protuberances: submargin of all
ondites clothed i numerous minute hajelike setae.
Anterior setig of endites 1 to Sin farmula 2.1,2,2,
with distal anterior seta on each of endites 1 and 2
with a small subtending spine, One distal anterior
sel euch on endiles | and 2 peetinate. and ane distal
unterior seta each on endiles 3-5 pluorose. Mnidites 3
and + with proximal anterior seta almost bare, and
about half the length of the other sety. Posterior sevice
in Tormulae S45. ead 17-20, 3.2.2. Endopodite
subquadiate, mateins evenly rounded, bearing
pluose sete thal are smaller basivlly and loner on
the distal margin. Plumese setae shorter than setac
olihe endites and exopndite and subtendered basally
hy 2-3 spines. Pxupadite elongate oval, three times
longer thay wide. bowing numerous marinal sce.
Ppipidite namrow, 5-6 tines longer than wile,
cylindrical with § truncate apex. Privepipodile barge,
hyo times longer than broad and with a large apical
lobe: margin smooth. arcuate wath grester convexity
a apteal lobe.
‘Telson with cercopods subequal to three abdominal
segments, cercopods bearing plumose setae on both
lateral and medial margins. Setae of uniform length,
exuopt {hase nearest the base a litde shorter
Deseripion ot female
Length unknown, bul about the same as male.
First srtennae CFLG 7) slightly longer thea
secund anteniue. Similar huiretike setae as in male
Second antenne (FICE 7) almost twice as lone as
length of oye plus. eye Slalks leaflike, 3-4 times
longer than wide and apically ucule. Many spines an
outer distal margin.
Thoracopods as in male,
Brood pouch cylindrical, bul lengli relative: to
wbilomen unknown as later missing. Cysts relatively
few (<20): surface al palywons with raised edies anil
sunken centres.
Comets
B fasilaris 15 & member al Group Hol Geddes
(198) (rontal appendage a? a trunk und two simple
brinwhes, simple digitiform processes of the: tronfal
appendage, later! swelling to the base of the penes.
and small to moderate sive). Within the group at is
must similar ty A a/fanys. The medial protuberance
on the proximal segment of the sceatd antenmae is
much more pronounced in & vavidieris than in 8
ajfinis. Ihe apex of the distal scument at the second
anlennac is more expanded in A dyileriy, ane ie
frontal appendage has longer disitiform processes,
sspechilly near the base of the trunk and on tie
basolateral expansion al the branches. 2 fysidivets
has an antennal appendage atthe distomedial corer
of the proximal segment. whieh is absent in &
aliinis, a as present tn BL deurieidate also ot his
group. is oF simpler consiruetion tm B. isidaeis —
ad simple liperiig red with a weak papilhte
subupically, compared to a triangular hametla
sermited by many papillae on ils distal surfiee. /?
msuhity lacks the characteristic array of small
oulgrowths ane the medial surlice of the proximal
segment of the Second antenna in & deatedlatd,
In Geddes” (1981) key to Ausharian species af
Branchinellt, B fustlaris straddles couplet Uso Uyis
has lo be reconstituted:
9% Provimal segment of male second ainnenoae with
an outgrowth from ihe distal end. Sa
~ — Proximal sexmeat oF male second antennae
Withour Such OuiRrAWwIhs 0... vac AD
Yo Male frontil appendage with lonwer digit(fony
Processes feat base of unk and also
THE FAIRY SHRIMP GENUS BRANCHINELLA SAYCE Ot
Fix. 8, Branchinella lamellata n. sp male holotype, F-G female allotype. (a) first and second antennae, (b) frontal appendage
without first anterior seta of endite | and posterior sctac of all endites and exopodite. (c) rigid portion of penes. (d) penes
(c) fifth thoracopod (1) head. (2) brood pouch,
laterobasally on the two branches .....B. inswlaris
- Male frontal appendage with digitiform
processes of equal length or absent... 12
B. insularis has been found only on Kangaroo
Island, southwest of Adelaide (FIG 2),
Branchinella lamellata sp. nov.
(FIG 8)
Type material
Holotype: one male, length 17.2 mm, C6032 SAM;
Allotype one female, length 15.6 mm, C6033 SAM:
W) OY TIMMS a& M,C, GEDDES
Hiavatypes 2 males moun length 1S. 7 nm, rinve 152
108 tony, five femules mean length 14.9 yy, pane
{4.56 103 min C6034 SAM,
{ype lovalitn
A Gluypin near Warburton Crossing, Clittin Hills
Station, nouthieyst South Australig, 277 027 8. 138"
SA’ Ecol, BeV. Timms. S-xti-2000-
Other mtatariel
A Calegrass samp, Bindegolly Nat Pk, Old, 27°
S60) 8. 144° FR" coll, ML Handley, evi 200 2
niles. t female OM W25799
Elvnrotiiy
Name alludes to the huge frontal appendaye whieh
jb HNpressively lantelhir i construction.
Beseriplion af inale
Hiest antennae (FIG RA) slightly danger than
proximal segment of second antennae: truncated
upesx bearing de short sett und a lew huiretike setae
subterminully, Second antennae (FIG 8A) with
pLOanmal segments projecting laterally 50" and fused
hasally: Proximal sezment bearing a distalomedial
recumypular protuberance about twiee as long. as
hrowd. und with rounded extremities. Proximal
Sewicht willl a posteriodistal, (ritnwular antennal
wppendage approximately half the length of the
sepment length, Antennal appendage lamellar,
smauil, bul with a series oF papillae on the distal
marein, loss Wuunereus apietlly, One papilla
Sublermindthy ont the basal margin. Distal segment of
sveond suileniie selerotized, bent medially 90° ut a
busdl noleh on its medial side, exphinute m plane of
zintenna, und derminating in an aeute point. Distal
seuent subequal to proximal sevinent and onty halt
as wile
Frontal uppenfave (FIG SB) kumellar und about
Houble the size of the second antenna. Trunk shert
—10 pseudusepmicents, distil gost bearing small
lent) digiuitorm processes. Branches fitsed into a
lamellar sheet with posteriolweral projections on
each side, bach projection bearing live long
basolateral digiform processes, Apes of prajection
extends us a narrow. hifiireate process with lateral
papillac. Lamellar sheet with pupitlie lateroventrally
and laterally. Apex of sheet broadly tiangular and
hilureaicd distally. Distomedial projection with well
spiced small papillae ventrally. These papillae
extend to the cenval pegion of frontal appendage,
Kreicl basal portion of penes fused and extend Lwo
sezments (FICE SC), with a rounded protuberance
posterioliterally, bversible pertion of penes
extending to first postgenital segment (b1G XD).
Many short. narrow spines on central and
subterminal parts, mostly on convex lateral margin,
A few broad-based spines dnostly in a longitudinal
dorsal row, more numerous subterminally.
Fifth thoracopod (FIG XE) with both first and
sevond endites binge and evenly convex, first endite
about 3 times larger than the second, Fndites 3-5
cach asmall asymmetrical protuberance; submuanain
of all ondiles clothed im numerous minute: hair-like
setae, Anterior setue of endites to 5 in lormula
2,1,2,2.1 with & seta on eavh of endites | and 2 with
a small subtending spine. Distal seta cach on endiles
Tand 2 peclinale, and distal seta enel on endites 3-5
plumose. Pudites 3 and 4 with proximal seta almost
bare, und about half the length af the other setit,
Posterior setae in Tormulae -45, ev 17-20, 3.2.1-2,
bndopudite broad. slightly longer than wide. and
Nringed with setae. Setae shorter und stouter thin
solace of endites and cxopadite, ‘Three well-spuced
setae With bulbous bases on medial marein, many
closely spaced selue on distal margin but wath
bulbous bases smaller Many shorter setae without
expanded bases on the Jiteral mire. Pxopodite
low und murrow, about One und iw hall times the
length ot the endopodite. Setie of exupodite vary iis
in lenwth. longest distally. bul overall shorter ihan
wndite setac. Epipodite eylindricul, about three times
Jonver (hun broad and tapering distally to ou truneate
apex. Praeepipodite twice as love as broud with
distoliteral corer almost angular: margin smooth.
Thoraeopod | similar to thoracopod S but smaller.
Thoracopod |lalso reduced in sive and endiles lack
most of their ordinary setae,
Telson together witty cercopods about as Tara ies
two vbdominal segmenis and vereopuds hewn
plumose suiae on both margins. Setae untlory ty
length except for the shorter basal ones.
Dexeriplion af femiile
Firstantenitae (PIG &F) stort slighthy: longer than
seeond antenna, Sintila sete apically as in niles
Second antennae (FICE SEF) short, about 2.5 x longer
than wide. apically rounded. but with a simul disaed
dcule apex. Many setae Surrounding wipex.
Brood pouch extendiiz to 3rd posteenital
ubdominal segment (FICE 8G) Surface of eysis
bearing laree, regular polyzons with mised edges and
depressed centres.
Thornicopods and cercopods us in male, exeept that
medial and distomedinl setae of endapodite lack
bulbous bases.
Commenls
The Bindegolly specimens (VIG OF & bare a linle
different trom the type material most qetably ia the
atructure of ibe second antennae and the Frowtal
uppendage. In the type material the length and wid
of the frontal appendage are subequal, but i the
Bindegolly specimens the woth iy almost iwice the
THe PAIRY SEIRIMP GENUS BRANCHUNEL EA SAYOCL he
leneth. Lateral papillite are more numerous, there are
6 (instead of 5) larger digitiform processes on the
basolateral margin and ventral papillae less
numerous inthe Bindexolly specimens. Interestingly
We famella is thickened at the basal margin.
indicating thal (his ts the position of the fron
appendage branch and that linnella apically oF this ty
ay oulgrowth. On the seeotd antennae the lamellar
Giiterowths on the medial surface oP the proximal
seument, ure more pronowiced in the Biidepolly
specimens. The outgrowth al the funetion of the hwo
sctyments has fewer papillae. including none an the
ventral margin, ‘The distal sovment ol the second
antennae (4 proprotionally wider than the counterpart
ithe lype specimens,
B. lamelteta is most closely related to RB. Aneljite
(Himms, 2000) Their seeond antennae are very
similar, but the medial projection is unique to 2.
limellata among the Thaininocephalidae. While both
species have lamellaform frontal appendages with a
lew Jonger dimatiform processes on the lateral
margin, the general shape of the uppendayes are
diflerent, Phe two species are easily differentiated
however. by the shape of the distal margin = a
tianular protrosion forked apically in B famedtune.
compared to i concave or anvular embayment inB
inedpith.
Wliic the lamellar trontal uppendage sets B
lamedlara (and BO hadfi) apart, it shares many
features with Group Ho members as defined by
Geddes (L981), These inelide the Small to moderate
size, short distal endites wath 2-4 anterior setae or
endites 3-5 of thoracoped |. and swellings lateral to
the penes, Phe ulluce is strengthened whet it is
realised that the frontal appendage does indecd have
(We stteture oba (lank and two branches, (hough the
Nrinches Tavwe lamellar oulrowths apically. Sa B.
lamellae isan aberrant member ofthe group, and 4,
dudfity is even more on the tringe of the group
(Vins 2001).
In Civdkles” (1981) key to Australian species of
Branehinela, &. lametlata weys with dilfieulty 16 B.
lari, The key needs lo be moditicd with un exim
coupler between Gand 7, which will serve also to key
Be buelstu:
6a Mrontal appendage lamellar on a short trunk 6b
Frontal appendage with eylindyicul
brinches and a short or long trunk... me
4b Lamella of frontal uppendage with a ‘Irjangular
protrusion apueabby oe RL hamelart
——hunelhi of oral appendage with a concave
on angular embayment distally 00.0.8. hadi
BK flanellata is known from ats type leeality an
norticust SA (FIG 2), aidalso 525 kin fo the mst,
nei Uhargomindah i southwest Queensland,
Branchinella lat Geddes
Branchinelta latet Creddes, \9O8), pp 273-5, le td
Rec wrds
Geddes LYS) N1> pool 1) kms Barrow Creek. 21"
a5’ S, 138 47° Ps Yalwougarne Ck, Mi. Doreen
Sin. 21°49 S.137° 10" E: poal Mt Dareen Sin. 22°
02' §_ 131° 20" E: Boundary bare, Mt, Allen Stn. 22°
23'S. 181" 57° EAM P18224 to P19226: pool Mt
Allen Sta,, 22° 75! §. 132" 00" Es paul Napperby
Stn.. a" 45'5 )32°29' Lb; Wigley waterhole, Todd
R., 23° 34" 8.133" 53" E: pool MU Bhitherskite, Mice
Springs. 23° 42° S, 1337 43" Es toek pools, Uluru,
257 2S, IBN BR, New Materia? NT 10 kan
Hatehes Ck, 20° 47'S. 135° 12" Bo coll Ph Lav and
D. Howes, 24-171-70-
Comments
Nhe large majoriy oft fafa’ records occur within
a 300 km radius of Alice Springs (FIGE 3) wilh one
record ftom seurhwest Old (Geddes, 1981). which
may approximaie its mataral distribuden, or could
result from the collecting activities of Alive Springs
based collectors. Interestingly it was efee (i 152)
found in rock pools al Uluru. bul these poals only
have had 8 a/finty m reeent yours. (1979, 19D),
2001 (see comments on B. affinity)
Branchinella lyrifera Linder
Beanelineda tijera Linder. 1941 opp 253-5, My.
34.
Records
Geidiles 198} Sa> claypan WL. Fyre. 28° 59° 5,
138" 26'S: pool in Stuart Ck... 29° 40°58. 137° U7" EE.
Geddes LYS) NT dam Brunette Downs Sin, TA) 46!
§. 135° 51’ BLAM P19230: Upper Amazon Lagoon,
Atroy Sta. 19° 17'S. 136° U4 bh, MLAGINT Cra87],
pool 19 km SE Soudan 19° 46" §. 135° 36" Es punt
65 kin N Alice Springs. 23° 09'S. 133" 43" E.New
Material SA: roudside pool, Bolivar, 34° 46° §, 138"
35 Toco, A. Hitighey. 7-69: dam Sof L, Phibbs on
road (o Stuart Creek Sti, 29° 39'S, 137" 05" Beall,
W. Zeidler, L3-s1-74. SAM C6047: Breribiuis
Waterhole, westofbuke Byre. 28" 13'S, 135° 32) 0,
voll. J. Pritehard. 2-47-01 claypan at Nilpinna, 28"
(6) S. 138° 448" Ie, 1x00: pool near Ulloomurra
Waterhole, 27° 08'S, 98" 44" 1, 3-11-00) paul neur
Pirricougoonoy Waterhiole. 27° 10'S. 13h’ 44° Fs 4-
xi-00; pool near Goyder Lakoon Waterholy, 26° 38°
S, 139" UT" LE, @-xn-00. pool at Corkwood Yards.
Tgirdsville Track, 26° 59'S, 138* 21 b, B-xreO0k
poal by Birdsville Track near Bobbiemengre
Turmoll, 26% 35'S. i = 37° BLY-Ki-00; paol east of
Pandie Panic. 20° 5, 139° At x H-xr-O0; dam
35 kim S Pandie angio ‘26° DVS. 139" AL 0
HOU, all call BYE
ov I. ¥.TIMMS & MC, GEDDES
Contents
A. lyrifera is widely distributed (FIG 5) bul is
apparently absent from the far north and fac south of
the study aren, as ibis in WA (Timms In Press). Ut
typically oveurs in turbid waters, as it does elsewhere:
mi Australia (Timms & Sanders In Press).
Branchinella vecidentalis (Dakin)
Branchinjella — dustraliensis — (Richters) var.
vevidentalis Dakin, 1914, pp, 294-5, pl. figs. 1-5,
Branchinella vecidentalis, (Dakin), Linder, 1941,
pp.252-3; Geddes, O81, pp 260-1, fig. 3.
Reeards
Credelus TOS] Sas claypan Woof L. Fyre. 28° 50" 8.
130° 28" BL New Material SA: Emu Ck, 29° 43" 8,
136° 19" EL call W. Zeidler, 5-xiie74, SAM CO0S1:
claypaun al Nilpinna, 28° 06" 8, 135° 45" bE, coll,
BVT. 1 -aii-00.
Cannnens
B, occidentalis is sparsely distributed in the Hort
of South Australia (FIG 4) and elsewhere across
Australia (Geeees LUX 1), and prefers turbid claypans
as il does in the Paroo und in WA (Tins & Sanders
In Press, Timms Ui Press),
Branchinella pinnata Geddes
Branchinella pinnate Geddes, 81, pp 278-81,
tig 13,
Recards
Geildes IYN! NTs No. 3 dam Warrego Mine.
‘Tennant Creek, 19° 23! S. 133° 53" kK: 10 km N
Hitchas Ck. wine, 20" 48° S. 135" 16° EL AM
P19227 Ww P19229; 7 kin S Barrow Ck, 21° 34" 8,
133° 49" E10 kin § Barrow Ck., 21° 35° S, 133° 47)
be LO kin N Ammaroo, 21° 38S, 138° 15" BL New
Marerial NTS Roper Ro Rd. #2 km EK oof Sturt
Highway, [4 59" $, 1337 07" FL coll MJ. Tyler, 13-
ii-h3; pool 4) kim S Top Springs, 16" S0°S, 1317 32?
b, Goll, MUL Tyler, 12-i/-83> Morphett Ck waterhole,
90 kin N of Tennant Creek, 17" 54° 8, 134" 05! T,
onll A. Pernie, 13-vi-¥5, MAGINT Cri 2786
Comments
B_ pinnita oeeurs in the middle Northern Territory
(VIG) 2) as well as inland Old and northwestern NSW
(Cieddes [YS)) Tins & Sanders ly Press)
Branchinella probiscida Henry
Braunchinella prohixeita Wenry, 1924, lal, pl.
20, figs. 5-4 and pl. 30. Gis 1-4: Linder, (41. p.
257, Geddes. L981, p.269-70, fig. 9.
Recurds
Geddes L987) NT: pool, Napperby Stn. 22° 51" S.
132° 36’ FAM P19234, New Material SA: cluypan
400 m N airstrip Olympic Dam. 30° 29" $8. 136° 53°
fy coll. MJ. Tyler 11-ii-81: Mooded grassland,
IS7km along track trom Andamooka to Olympic
Dam, 30° 27' 8, 136° 39° B, coll, Me Tylen 12-1
81: pool near Oodnadatta, 27° 35° S. 135" 27" E,
coll. P. Hudson, 3-iv-01.
&. probiscida remains an Uneommon species in the
NT und now has also been recorded fram SA, bul
only sparsely and from inland areas (FLG 5),
Branchinella tyleri sp.nov.
(FIG 9)
Type materteal
Holotype: one male, length 10.3 mm, MAGNE Cr
O(3175; Allotype one female, length 10.2. tm,
MAGNT Cr 013175; Paratypes five males mean
length 10,0 mm, range 9.3 — 10.6 mm, three females
mean deneth 9.9 mm, range 9.0 10.4 mm. MAGN
Cr 013176,
Tyre location
Pool 6-7 km upstream of bridge over Victoria Ro on
Vietoria Highway, NT, 15° 26'S, 137° 12" F, eall
MJ. Lyler. 9-71-83,
Ohen material
Pool 20 kim by Delamere Highway Sof
Vietori/Delamere Highway junetion, [5° 28" 8,
131" 370 E, | 11-83; pool by Delamere Highway 114
kin’ S of Vietoria/Delamere Highway junetion. 14°
11'S, 131° 50) EL 111-83, MAGINT Cr 013177,
pool by Stuart Highway 226 kin S of Katherine, 13°
44" S. 133° 25’ Ey 14-ii-83, all coll, M. I, Tyler,
Livinology
The name honours Michael Tyler renowned
herpetolovist and also collector of many fripy
shrimps it remote areas of Australia,
Deveription of male
First antennae (FIG) 9A) slightly longer than
proxiinal segment of second antennae; apex
iruneated, bearing four Wair-like setae. Second
antenna (FIG 9A, B) fused together basally for +
15% of its total leneth gnd with proximal and distal
sewients subequal aa lenuth. Proximal segment
cylindrical, busomedial surfage bears longitudinal
paich of small papillae each Lerminaling in a small
spine. Papillate region elevated proximally. mound-
hike with papillae terminating m longer spines.
Nistal segment sclerotized, stout basally, narrowing
abruptly, evenly arcuate for remainder of length.
Apex slightly cxpatided, Weakly developed medial
lransverse ridges on distal ball.
Frontal appendage (iG 9B) slightly longer than
THE FAIRY SHRIMP GENUS BRANCHINELLA SAYCE. 65
.
fats
Pie. 9 Branchinella wleri on. sp A-E male holotype, F-G female allotype. (a) head (b) frontal appendage (c) lateral view of
head. (d) rigid portion of penes, (¢) filth thoracopod with posterior seta of all endites and exopodite. (f) head. (g) brood
pouch,
Ob BOVOIIMMS & M,C) GE DDES
second unlennue and an preserved specimens tangled
inte 4 fiaht mass (FIG YC),
fob longi) diaded into unadorned pseada-
seyments. Two lateral branches separated by a-smiall
humellir protrusion (fap) bluntly forked (FIG 9 B,
LC), Taich branch of Vrontal appendage berirs about U1
long. (iin, digitiforin lateral processes, with abother
5 provesses distornedially, The digitiform processes
beur Woy papillac arranged in uppasite pais on
ther lateral edges. Branch unadorned medinily an
basal 2/3rds, and laterally on distal thitd. bach
branch terminates ina knob clothed in sharp spines.
Rigid basal portion of penes (FIG 9D) largely
ised dnd tapering distally, with distal 20% free,
cylindrical wid extending postertorlyabout 1/3 along
first posivential segment, No Jaleral projections.
Structure of eversible portion oF penes unkrown,
Fil thermeopod (FIG 9) wath both first and
seeund endite large und evenly vonves, the frst
about 3 times. lirger thin the seeond, Enditey 3-5
cach a small asymmetrical protuberance: submargin
of all endites clothed i-numerous minute huirlike
setie, Anterior sete of endites | ta 8 in formula
24.2.2,7 with a sett on cach of endites | and 2 with
vamall-subtending spine. First peelinale seta and
spbe with a (hick base and spine of second peetinate
shi with base [ringed with a few thin, short spies.
One seta cach on endites: | and 2 pectinate, and one
stl each on endiles 3-8 plumose, tnelites 3 and 4
with second seta almost bare and about 2/3rds the
leneih of the other Seti. Posterior senie i forinulac
“AS et 17-20, 3,2.1-2. Endupodite quudrate but with
a shghtly expanded mediodistal cores and a weak
depression on the distal surface near the distonredial
corner Sete smaller and stouter than the ordinary
setae of endites and exopodite, gradually devreusiny
jn size both dyedially und lateriaily, se that the busul
sections of endopodite without setae, Ali setae
plumose and surrounded ar (heir base with many
short thin spines: fsxopedite clongate oval with setac
lunpest apically and shortest basally. Epipodite
subrectangoliy, three mes looper than wide. with
ypex usynimetnically truncated, Praeepipodite three
Lines loner than broad, drehate margin with many
stall serrations dishully grading tito fewer larger
serrations pros iniathys
Telson with cereupods mearly as long as four
abdomimul sements and bearibg plumose setae on
both) mareins. Semiec Shortest ut buse oF vercopods und
lamest ubout 3/4 alame the length of the cercopods.
Description of fentale
larstantennae shehtly shorter han Sevond antennac
(PIG). Similar hairlike setae apically as in mute
Seeond antennae Jeal-like (FIG OF), abour three tines
longer than wide und tapering gradually toa thin
apex. Many small spines on outer distal Mariine
Trunk short (<20% of
Thoracopods und cercopuds as tm male.
Brood pouch (FIG 9G) compact with only a stich
expinsion of (he genital segments anda short neek
extending at most to pst postgenital segment.
Cannents
The complexty branched aature of the frovtal
appendave und the lack of lateral projections fo Ihe
Hgid base of the penes suggest A rdert is allied ta
Geddes’ (M981) Croup Tl species. OF these It hears
ureatest resemblance Ww &. dubia, B. wellardi and B
pinnate because Ue digitifoni processes of the
Jrontal appendage ave nor further manified. None of
these species hus the lateral and medial arrangement
of digitiform processes as in Ho tyler, Bo welled
shares two notable leatures with & fefer? = Whe pared
papillae on ihe digitiform processes and the lametlar
Gulgrowth at the distal junction of the two kitenil
branches. [However Bo wellard? Was divitharia
processes on both maging of the lateral branch and
lacks the terminal spine-coyered expansion of the
hilerul branch seen in A. aerd. These terminal spines
have a simple analogue in the single strony lerminal
spine on each lateral braneh in 8 dihfa. bot there is
no expansion ol (he upex as in #, (elev? nur the larse
nuinber of lateral digitiforny processes ant the
medial digititornm processes as in HE avilery.
In Geddes’ (1981) key to Atistraliain speeies ot
Branehinella td. tuleri keys Vo B. wellardi, so an
extra couple) at eouplel 1S is needed to separate
These Twos species:
(Sa Lateral branch of frontal appendage term idling
ina spine-covered knobs diaitiform processes of)
Jateral branch at any one seelion on one nrangin
wonly.. Baten
| itera) “branch of ‘frome il ‘append. age
lorminaling 17 (he same digit lorm processes tal
line hoth margins of the branch —....B. west
& pyle oecurs only in the Vietoria River districr
andadjacent aren tothe eastin dhe Northern }enilary
(FIG 4).
Discussion
The relationships of the new species to other
Menibets of Branedinella ts apparently clearer than
for other species recently deseribed (Timms 2001. by
Press), with Bo insudaris cayily accommodated ints
wroup UB veel into eroup UL and B. laimetland is
Heat group Hh, While there ace diffieuttics with some
species, (he vast majority al species shaw
relationships to one of three vroups as irinlitlly
proposed by Geddes (}981). claboarated hy Timms
(2007. 1) Press) und added to here. However in wn
analysis of relationships using DNA technolosy
VHP PAIRY SHRIMP CUONUIS BRAVOHINELL AT SAYCT a7
(Remigio et al. im press) only Croup UL ys a robust
prouping. so ihe relationships of these speeies.
exeepl! perhaps 2) v/ers. is unkiown.
this study has inercased the species of
Branchinella known trom South Australia from three
to mine and in the Northern Territory from six to nine:
hive speeies ovcur in both, so that overall 13 species
are known from both areas, Three of the species are
new, but only one endemic species is known trom
each uren, Bo fayalaeds for the south af SA and 2.
mer from the north ofthe NIL Consideniy the large
combined aren (2330000 ki) oF the two
jurisdictions and the broad latitudinal spread, this as
note large numbec fel 18 species in WA - Timms tn
Press). Moreoveronly LI of species-are endemic in
cavh jurisdiction and [5% overall, compared to 30%
in WA (Tinins Th Press), The two study areas are of
simmliw size, so urea cannot be ulfeclins species
richness. but lack of isolation and lower habitat
Vuriely miy he. SA & NT share many biogeopraplhic
areas With Lhe eastem states, while liree areas of WA
we biogeosraphically distivet. At cxaniple is the
sharmig of four arid-zone onestracans (2. wrhereu, B,
budiin, B. lamellata, and B. fetz/) between central
SA, central NT, sw Qid and nwNWSW. This relative
lack of isolution is expressed tn the low endemicity in
SA wand the NT. Perhaps aso there ts not the habitat
spectalization as there is in WA und especially in the
Paroo, where there are 1+ species of Brevelinelta in
U 2.000 kine area in many types of waters (Tinmms &
Sanders li) Press). As ai exaniple, the speenilized
habitat of gnammas on rock outcrops does not seem
to dave a specialized species in SA of the NT. In WA.
these are oceupied by the endemic & Jongirasiviy in
the wheathelt and adjicent areas and by another
endemic B. hesixpina in the western Nullarbor
(Timms tn Press), By conttast, de gnamimnas of Levee
Poninsuli in SA seem. tu tuck fairy shrimps (LAL.
Bayly, pers.com. LWT, unpublished data), while tock
Holes ja the southern N Pane inhabited by widespread
Species suchas Baffin. B lai ( see above) und
Srreplaceplalus sp. (Bayly 2001).
As tor much of Austialia. including WA. the niost
common und witlespread speeies are A a/findy aud &.
dusiraliensiy (Geddes 198l. Pinus lin Press), Olter
widespread but less common speeies include &,
Ivrifera, Bo vecidantatis, und Bo probiseide. OF he
remaining species, twa (8, dubia anid B pialara) are
shared across tropical Australia, (our (2) arhoree, Bi,
dindyiti. B fate, B. lamellani)y seem to be urid-vone
speetulists, while Uwe of the mew species have
localised distributions, & fier in the Vistoria R
distet oF the NV and the other, Bo fasularis, on
Kangaroo Island
\ras difficult to assess the true distribution ane
rekitive dbundiinee OF (airy Shrimps in the study area,
us thuny pemole arcas Gave still not been visited al
the jppropriate time. e2 northwest of SA,
southeastern NT. burtheriiare some species like the
large B australiensix are probably proportionally
overrepreserted jf the collections, because they are
more easily seen by a curous public AL least another
twe undescribed species seem to exist, one from an
unknenvn site in the Northern Vervitory for whieh
MG holds two subadult males. and another from
Luke Tortens for which the material seems lo have
heen Jos| The later could be most interesting es if ts
relubvely darge (2. Tudson. pers. com.) and lives iit
the hyposuling waters ofan episedic lake (Williams
ct al. L998), and so could be a localised member of
the B. micholisé wroup ol species, The chances of
collecting itagaiiare low as Lake Torrens rarely fils
(Williams ctu. 1998). This factor combined with
remoteness. of many partsoy the study area means it
8 UilTicult to collect fairy shrimps adequately,
Nevertheless this study bas greatly improved
knowledge of Bravehinedie in South Australia and
the Northern Territory.
Acknowledgements
We are grateful to Wolfgang Zeidler, formerly of
ihe South) Austtalign Museum, anid Gavin Dally of
the Northern Territory Misenns of Arts and Sciences,
for.aceess te specimens. We alsa thank Olivier Rey-
Leseure lor drawing the maps, Ann Stafford for help
with computer gruphies und Christaphir Ravers for
helpful comments on the mansticrnpe.
References
Bayiy, hoA, Eo (2000) Tnvertebrate Geeurrenee ind
suveession wiicr episodic flooding of acento Austen
rows Whe A Res Sue Tian clint M4 24-32,
Brik TD. & Beare J (1995) Cheeklist al the Anostren.
Hinlrabialogig 298) S1S-353.
Grubs, MOC, (Yel) Revision at Ausudlian species af
Biiiiehinelhy (CMstudceet Anostiacap laa J lee
Freostian Res, 42: 259-295
Rania, FA, Elvis GB. Va Tbk BD. Ne Press}
Phylogenetic syatemanes of the Austrian fey shennp
venus Beinehine/le (Crustacea Alosatvtua) Bascal di
mitochonden! DWA sequences, of Cyt Hial
Tas, BV. (2004) Twer new spruces at tatiry shrine
(Orustaces: Anostrics Thimnocephatidae
Batehinetiny trai dhe Pano, ute Austalia.
Ree Auat Adis Sa: Del T5a
68 B. V. TIMMS & M. C. GEDDES
Timms, B. V. & SANDERS, P. R. (In Press) Biogeography
and ecology of the Anostraca (Crustacea) in the middle
Paroo catchment of the Australian arid-zone.
Hydrobiologia
Timms, B. V. (In Press) The Fairy Shrimp Genus
Branchinella Sayce 1903 (Crustacea: Anostraca:
Thamnocephalidae) in Western Australia, including a
description of four new species. Hydrobiologia
WILLIAMS, W. D., de DECKKER, P. & SHIEL, R. J. (1998)
The limnology of Lake Torrens, an episodic salt lake of
central Australia, with particular reference to unique
events in 1989. Hydrobiologia 384: 101-110.
VOL. 127, PART 2
28 NOVEMBER, 2003
A special issue of the Transactions of the
Royal Society of South
Australia Incorporated
containing papers on the Encounter 2002 Expedition
to the Isles of St Francis, South Australia
Guest Editors: Sue Murray-Jones (BSc, PhD)
Scoresby Shepherd (B.A., LL.B., M.Env.St., Ph.D.)
Anthony Robinson (PSM, BSc, PhD)
Contents.
Robinson, A. C., Murray-Jones, S., Shepherd, S. A. & Wace, N. M. The Encounter
2002 Expedition to the Isles of St Francis, South Australia:
Formation of the islands, imtroductory narrative & marine
conservation recommendations — = = = = = 69
Arnott, T. K., Laurence, S. E. & Wace, N. M. The Encounter 2002 Expedition to the
Isles of St Francis, South Australia: Settlement History - - — 75
Ferris, G. M, The Encounter 2002 Expedition to the Isles of St Francis, South
Australia: Geology and geochemistry SHE the granitoids and
voleanies of St Francis Island — — = ae St 87
Robinson, A. C., Canty, P. D., Wace, N. M. & Barker, R. M. The Encounter 2002
Expedition to the Isles of St Francis Conservation Park, South
Australia: Plants and Vegetation -— -—- -— = = ~ = & 107
Robinson, A. C,, Armstrong, D. M., Armstrong, G. P., Dalzell, B., Canty,
P. B., McDowell, M. & Hall, L-M. The Encounter 2002
Expedition to the Isles of St Francis Conservation Park, South
Australia: Vertebrate Fauna - - = = - = = = = 129
Womersley, H. B.S. & Baldock, R. N. The Encounter 2002 expedition to the Isles of St
Francis, South Australia: Marine benthic algae - - -— - = 141
Turner, D. J. & Cheshire, A, C. Encounter 2002 expedition to the Isles of St Francis,
South Australia: Structure and preduetivity of benthic macroalgal
communities -— = — —~— = --— —-- = = = = = 153
Irving, A. D., Fowler-Walker, M. J. & Connell, S. Associations of forest-type with
morphology of Eecklonia radiata and abundance of understorey
dines SS 5 ee ee
Baker, J. L. & Edyvane, K. S. Subtidal macrofloral surv ay oes St as and Fenelon
Islands, South Australia - - = ———— 177
Hirst, A. J. Encounter 2002 expedition to the Isles of St Prancis, South
Australia: Peracarid crustacean epifauna of subtidal macroalpal
canopies — = = = = = = — eS Se ee 189
Gershwin, L-A. & Zeidler, W. Encounter 2002 expedition to the Isles of St Francis.
South Australia: Medusae, siphonophores and ctenophores of the
Nuyts Archipelago - - - - = = = = = 205
Watson, J. E. Encounter 2002 expedition to the Isles of St Francis, South
Australia: Annoted list of shallow water Hydroids with description
of a new species of Campanularia — = - -— = = = = 243
Rouse, G. W. Encounter 2002 expedition to the Isles of St Francis, South
Australia: Myzostoma australe (Myzostomida), a new rina
associated worm from South Australia -— - —-— = - = 265
Shepherd, 8. A. & Brook, J. B. Encounter 2002 expedition to the Isles of St Francis,
South Australia: Reef fishes -— - -~- — = ~ - - = 269
PUBLISHED AND SOLD AT THE SOCIETY'S ROOMS
SOUTH AUSTRALIAN MUSEUM, NORTH TERRACE, ADELAIDE, S.A. 5000
TRANSACTIONS OF THE
ROYAL SOCIETY
OF SOUTH AUSTRALIA
INCORPORATED
VOL. 127, PART 2
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES
OF ST FRANCIS, SOUTH AUSTRALIA: FORMATION OF THE
ISLANDS, INTRODUCTORY NARRATIVE & MARINE
CONSERVATION RECOMMENDATIONS
By A. C. ROBINSON*, S. MURRAY-JONES?, S. A. SHEPHERD & N. M.
WACES
Summary
Robinson, A. C. Murray-Jones, S., Shepherd, S. A. & Wace, N. M. (2003). The
Encounter 2002 Expedition to the Isles of St Francis, South Australia: Formation of
the islands, introductory narrative & marine conservation recommendations. Trans. R.
Soc. 8S. Aust. 127(2), 69-73, 28 November, 2003.
Key Words: Southern Australia, sea level change, islands, marine conservation,
marine protected area.
Plate |
A An aerial view of the Isles of St Francis from the east (Photo A. Robinson).
B Overlooking Trivia Bay on the west coast of St Francis Island (Photo P. Canty),
CA Carpet Python (Morelia spilota imbricata) on St Francis Island (Photo A. Robinson).
D The expedition camp on Petrel Bay, St Francis Island (Photo A. Robinson).
E Farmhouse ruins on St Francis Island with Egg and Smooth Islands in the background (Photo P. Canty).
Plate 2.
F Diver surveying the invertebrate fauna of vertical surfaces (Photo I, Svane)
G Golf ball sponges (probably Te¢hya sp.) (Photo J. Hayvenhand)
H Familial felicity among ascidians. Numerous small Polvsvacraton aspiculatwm attached to the tunic ofa large Herdmania
momus (Photo J. Havenhand)
| Diver collecting algal specimens (Photo R. Swanson)
J The tall ships ‘Fuilie’ and ‘Enterprize’ in Petrel Bay, off St Francis Island. (Photo P. Canty).
Hhavisin Hears of ie Kayal Socied af 8, lust (2003). 127 (2) 6073
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA: FORMATION OF THE ISLANDS, INTRODUCTORY
NARRATIVE & MARINE CONSERVATION RECOMMENDATIONS
hy ALC, Robinson, S. MURRAY-JONFS', SAS Siero & oN. ML Wact
Summary
Rouisson, ACC. Miiewdonis. S. SHpenk S. AL & Wack NOM. (2005) The Lieounter 2002 bapedition
I The Isles ol St Francs. South Australia; Formation of the istands, iiteaduetoey nunatve & anieine
Conservalion revominendations fhaas Ro Nive 8
fest, V27(2), O73, 28 November, 2003
bY Wires: Southern Austr, set level chinwe. Shands. Heride consersaiilor. murine preteted dred,
‘hrom Heir dpipearaiee, their aridity ane
wer hing else which inakes them cistasiefiul, Pim
Hol seprixed (hat they lene heen named apfier the
fiver SUES idie rtaos weries af preweri. for then:
phavide the mast perfect example it 8 proxsitile lo
LIV OP it ‘
Report ol Nicolas Gaudin (X02
This was the unflaterng comment of the French
explorer, Baudin, about the Isles of St Francis and St
Peter, which together muke up Nuyts Archipelage,
Named by Pieler Nuyts in 1627. the famous
explorers Matthew Finders and Nicolas Buudin
both visited these offshore islands in }S02, There is
norecord of the French having latided a shore party:
which may explain why Baudin wot iso wrong,
The Nuyls Archipelago (Fig. 1) was formed by
sea-level changes during the Pleistocene. Phe sea
level Was approximately ESO m below the present
level 17 000 years age (tthe peak of the last glaejal
phase (Belperio e/ a/, 1983). This exposed extensive
areas of the continental shelf and fine calearcous
sedinient was blown inland forming vast Acolian
dune systems. extending roubd the Australian
Hunk coust from the Plead of the Bight to Catlin
Buy. Goolowreally, they are known as the
Bridvewuter formation and they overlic basement
Precambrian shield rocks of ihe Gawler Craton
(Thomson 1970),
During the lust 17 O00 years the sea-level has risen
due dy the ehunge ta water chimates, and the
current Coustline formed around GO00 years ako. An
Miodhiversity Sarvs &: Minories. Sejeee de Conaer vate,
DopiriMent Tar Gisiroliwat a Herts. CPO Bos )047
Aduhtide, Sh SOME,
Couet Pontection Brineh, Nate! & © altura) Meri
Demet fear Dis ronmienie & blernaie GRO os Pe,
Viele, SAV S00],
SAME \giutic Seenees. PO Boy 722 Henley Hegel SA 527
) Roe St Yarlimle SOT Jeou
cxdininaton of the bathymerie contours (hi. 2)
reveal thal the Isles of St Praneis would have heen
vonneeted to the mainland and ipost of the other
islands by a tidge approxunitely 5 bin wide, wilh a
Hal] Of sea-level of only 40 m below the present haw
water, With the probable exeephan of Tart Island
and Cunmin Reef all ishinds would have been
broadly councoted to one another by a lesser Hall of
34m. They were isolated from the renainder of
Nuyts Archipelago approximately 1) 000 yeurs ago,
but remained asa group with a shared coastline watil
10 000 years ago during the postglacial custalic
sea-level rise (Belperio ev cl. 1983). The Isles of St
Francts therefore shure both a physteal and
historical distinetiveness from the other islands ol
Nuvts Archipelago dnd from the mainland, whieh
produces o certain biogeographic unity.
the basement rocks ave only exposed near the
shores, where they show massive sheet structures
(Vig. 3), The granites have generally weathered to
course, rounded surfaees. except where they are
intruded by dykes of less resistant material. whose
dillerential removal has produced a fretted eousiting
of narrow inlets and gullies: The Acoli calearenite
lies directly over the erystilline basement rocks and
ist toast 40 i thick in clit exposures. Where ihe
baseinemt rock outerops above seq level, the
overlying dune limestones terminate abruptly in
clitts and rocky previpices, excupt on headlands.
where limestone slopes more vently to the
inderlying basement (Figs 4 5),
The study of the flora und Suuna of South
Australis more (hun 1350 offshore islands has a
long history dating back to the original wark on the
VegelaHion Of Nuyts Archipelago by Robert Brown,
the botanist on Flinders vestiguéar, and
coutinuing te the present day An extensive
bibliography of published warks on these shuns
aut be found in Robinson ed al (1996). The islands
of Nuves Archipelago have, since 1967, been
7 A.C. ROBINSON, S. MURRAY-JONES. S, A, SHEPHERD & N, M, WACE
= =
PURDIE Bi Lauhins lsLaAnt
SOUTH AUSTRALIA
“ST PETER ISLAND
GOT S.ann
p
ws —
EVRE ISLAM *~
Ny i evans isuaun EYRE ISLAND
lacy
Pa a
ae
qo
FREELING SLANT > PR ANCL ISCAS
SMOLITH IE a
HOS (ISLAND
9 2
WAST ISLAND wads
so) FRANCS SLAro
Lier
Sa MASILLON ISLAN0
cs -
— Heme Lan [5c arll
+ HART ASLAND CANNAN REEF
9 10 20 3 40 50 Kilometres QLIVEISEAND
—_— “1
Fiy. 1, Map of the islands of Nuyts Archipelago. Box delineates study area of the Isles of St Francis.
divided into two Conservation Parks managed by
the South Australian Department for Environment
and Heritage. The group of islands that are the
subject of this series of reports (Fig. 1) all fall within
the Isles of St Francis Conservation Park, [1 consists
of a cluster of 1] islands of varying sizes and
exposure. The base for the two weeks of the
expedition was on north facing Petrel Bay on St
Francis Island, which provides the only safe
anchorage in the island group,
The Royal Society of South Australia has a long
history of sponsoring expeditions to the State's
offshore islands, including an expedition to Nuyts
Archipelago and the Invesugator Group in 1922
(Chilton 1922; Lea 1922a, b, 1923: Osborn 1922,
1925: Wood Jones 1922, 1923, 1924; Osborn &
Wood 1923; Cleland 1923a,b; Proctor 1923; Tindale
1923: Waite 1923a, b; Wood 1923; Hale 1924:
Glauert 1925), This was followed in 1969 by an
expedition to Pearson Island (Mawson L971; Paton
1971; Shepherd & Thomas 1971; Shepherd &
Womersley 1971; Smyth 1971; Symon 1971,
Thomas & Delroy 1971; Twidale 1971; Burn 1973:
Seed 1973: Watson 1973). In 1971 the Society
sponsored an expedition to the Isles of St Francis
(Robinson & Smyth 1976: Shepherd & Womersley
1976), The present expedition followed an original
idea suggested by Rob Lewis, Chief Scientist. South
Australian Research and Development Institute and
was part of “Encounter 20027, a celebration of the
anniversary of the explorations of the South
Australian coastline by Matthew Flinders and
Nicholas Baudin in 1802, In addition it was seen as
a follow-up to the original 1971 Royal Society of
South Australia expedition.
The scientitic program took place from 14-26
February 2002 and comprised a terrestrial and a
marine component. The terrestrial party established
a camp at the base of St Francis Island in Petre! Bay.
while the marine component mostly stayed aboard
the fisheries research vessel Ngerin. Small bouts
were used to ferry scientists between islands. The
following persons took part m the expedition’s
scientific program:
INTRODUCTORY NARRATIVE 7I
SPAM BAT
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een ( + Cibut.
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us f
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THEA PY Baby
Fig, 2. Bathymetry of the Nuyts Archipelago from the Australian Navy hydropraphie survey by H.M.A.S. Moresby Mareh-
May 1972 by permission of the Hydrographer R.A.N. (designated A on reliability map), The following sheets of”
soundings were also used: Yatala Reet’ to Nuyts Archipelago (1:75 000), Pearson to Nuyts (1:75 000), Approaches to
Theyenard (1:50 000) and Demal Bay sheets |, 2, 7 (1:25 000). Further data used from previous surveys include:
Admiralty Chart No 1061 Cape Catastrophe to the Great Australian Bight (1: 600 000) (reliability C), and inserts thereon
for Streaky Bay (1-148 000) and Denial & Smoky Bays (1:148 000) (reliability B) and Sircaky Bay 1 Point Sinclair &
Nuyts Archipelago (1:126 720) from the surveys of Cmdr Howard and Lt. Goalen in H.M.S. Beatrice [877-78 (reliability
©), Inferred depths, for which no nearby soundings are available, are indicated by dotted lines. Contours are in metres al
10 m intervals below low water, Indian spring tides.
Terrestrial program: Tony Robinson (leader of
the terrestrial party and involved in vegetation and
seal studies), Peter Canty (vegetation), David
Armstrong and Graham Armstrong (python biology),
Gary Ferris (granite geochemistry), Brett Dalzell
(seal studies und python biology), Matthew
McDowell and Linda-Marie Hall (vertebrate
sublossils), Terry Arnott and Sarah Laurence (land-
use history and archaeology).
Marine program: Dayid Turner (macroalgal
ecology) and Robert Baldock, (algal systematics),
Anthony Cheshire (algal ecophysiology), Meegan
Fowler-Walker, Andrew Irving and Sean Connell
(ecology of marine macroalgac), Alastair [Hirst
(macroepifauna of algac), Thierry Lapeérousaz
(animal collections for SA Museum), Th Svane and
Jon Havenhand (fauna of shaded hard surfaces), Greg
Rouse (systematics of polychaetes and crinoids),
Jeanette Watson (systematics and ecology of
hydroids), Peter Fairweather (intertidal ecology).
Scoresby Shepherd and James Brook (distribution
and recruitment of reef fishes), Lisa Gershwin
(systematics of gelatinous plankton) and Rhett
Swanson (underwater photography), Suc Murray-
Jones assumed responsibility for the logistics and
assisted in the intertidal surveys and algal
ecophysiological and macroepifaunal work.
Operations support: Neil Chigwidden (Ngerin
Master), Chns Small, Neeria (Mate/Engineer), Dave
Kerr (.Vgerin Mate/Engineer), Ralph Putz, (Ngerin
7 NA
fia 3, Sheet strctires WHRID St Priticis Grane, easton St
hiurets Isfanu,
Mig CUTS alone south goast St Praets Eskine) stow nis
NAGLE stra lieal on
hig 5. Steep aided cliffs with tind citenete Tasers
uncontlormably averlving gianite,
ROBINSON & MURBAYJONDS, §, A, SHEPIIERID A KOM WAC T
Deck Hand/Cook), Brign Davies (Dive Superson),
Rick Juines (Boat Operations),
Outcomes: The for terrestrial stidics i thts
spveiul issue haye consolidated Tistorieal atid
hinlovicul anformiulion not wenendhy aeeessible, Ty
nddinion. Arvetr Lowrenve & Niwel Woee have
pawided a pbuckvrouml to (he first Eurapean
setlement un the istamed ind hive, lor the first lite,
deciimentedl the relies tenting Front the farianiss
era, Ferris has provided thew tilormatua on the
siructure and geouhermistey oF the anerent jocks Tat
farmthe archipelago. The tolal Mor at the istinds
tovether With wes inerpretation al the youehaton ol
St Praneis (Slund aid an ussessment of the chunye in
areas disturbed by various aspects Of the former
settlement of Lhe islands, siiee 197], are presented by
Robinson, Canty. Wace & Barker, Finally, the
vertebrate fauna of the islands. with) particular
emphasis on their importan! populauions of seals. sea-
Jions and carpet pythons were assessed by Rubi nsutt,
Armstrong. Armstrong, Dulzell. Canby, MeDewell &
Vall
The nine murine studies in this special wsue hive
substantially extended our knowledge of benthic
vommmunilies for the region, Womersley & RBallock
have sununarized the extensive past aid recent alyal
volleetions by providing a species list ol benthie algae
for the urelipclage. The struetue af algal
ussemblages and their primury productivity uve
been assessed by Tumer & Cheshire. while Irving ev
ui, have examined the relations of Bekloia wil 1s
undersiorey. Also qicluded is a [992 study al whe
diversity of algal communities by Baker & Edyvine
The crustieead nyaderoepiliina ussociited wih
various Hiteformsy of algae were examined By Tirst.
Systematic studies in the Cnidaria and Clenophora by
Gephwin, Zudler and Wutson produced euht pew
species of Lydromedsie and new records of the
gelitinous plankton (Gershwin & Zeidler) as well us
ole Hew species und several new records ob the
hydroids (Watson), Rouse, while collecting, criiiils.
hus deseribed a commensal speeies. of the
Myzostormada (Polyehaer). which ts (he Jirst pcot al
of the fumily for seuthert) Australi. Shepherd &
Brook have desermbed a very abundant fish lant
due, they considered, to the “offshore island” effect
which enhanees fish abundance by the impart of
productivity from the Surroutdin seas.
Lasily. because of the variety sd) pelatively
unspoilt nature ol the marine ecosystems surround je
the Isles of St Francis, we include recommendations
for the location of i Marine Protected Area (MPA)
within the archipelago. Despite the fet Whar studies
were dove on only a few islands, and offen on their
sheltered sides die to the prevailing swell it beanie
apparent that ‘the greatest biodiversity would be
INTRODUCTORY NARRATIVE M
protected by mausinizving the number of habitats to be
protected. (n-addition the sh study showed distinet
differences i habitat between juveniles and adults of
some species, Nolwbly Jabrids, AS waive cnersy and
livht are key forcing functions for benthic
communities. a MPA should conta representatives
al habititts on expoked. to sheltered areas trom the
Intertidal to deep water. SL braneis |. ised F contains
virtually all Ihese types of habitat on its exposed and
sheltered sides. and hence this ishurd, together with
Masifionjind Penclon Is.und their seal calonies, with
surrounding waters, May apiially achieve the gouls
ou representauive MPA for the archipelago,
Acknowledgments
The South Australian Research: and Development
Institute (Aquatic Seienees) Committed a significant
amount oF funding to the expedition through the
proyision of RV Negeri, support craft, ancl eres. The
South Ausirahan Department for Environment ani
Heritage supported the terrestrial program. The
University of Adelaide provided wasmall bual, and the
Australia Geographic Society contributed financial
support for the expedition.
References
Brerimeio, AL TS, Datos OR, & Gosia VOA (LORRY A
review GE Polovene sea levels om South Australia fa
Hlopley. Do (hab) “Austen Sea Levels i the barst
ISO Vea A Review) Merirtnent af Creagraphy,
Jrnmnes Cook Lniversin af North OQuaewnstant,
Monusruph Series, Oeansiiunal Caper a 37-47.
Brie, Ro CTA) Reurseat Istand Pxpeditvon 1869 1,
Opisthobronchs /eaiy. & Seo So dave. 97 201-206
Chibi. ©. (MM 22) The blond and Foun ol Nay ts
Atchipelage ant the fivestivalor Grranp: be Amphipoctia
und fsopuca, Mie, 47, 34-38
Corbasp, 4h B. (P9 2a the flora and launa of Nini
Archipelugn and the Investigator Cronp 8 The bids of
Ponrson Isfands. /bet 47 119-) 20,
92a) The flora and “ttita of Nuys
Avhipeliwo and he lryestivator Group t+: The
Rasidamycetous lunei of Pearson Islands. Gira
Ausualian Bight, Jbl 47 365-366.
Giarbrer be (1925) Che Port and fauna of Nayis
Arehipelave and the Investigilar Group TP? the
scorpions, With doseriptions of sate species fron other
localities Wi South Austin, Mies 48. 85-87,
Hann Th Me (1924) The flora und Mana of Nuyts
Archipelago and the livestizatar Group Lo: Crustaeen,
(hid AB OF.
Pian AJM. (1Y22q) The Mera ahd find of uyts
ArMipelage and the lywestealor Group + Coleoptera,
fhid 46, 295-303,
(M922h) The More and from of Nuys
Scehipchipa and the lnvestigator Croup db: The
Coleapten af Pearson Ishand. thick 47. 355-3601
(M923) The Moe nd fran al Nuyts
Archipelage ind the Investigator Croup l2: Stemach
conlenls of Pearson Ishind Birds. Jia 47 361
Marys PM. (T8771) Pearson Ishind Expedition lous:
Helminths, fiat 95, 164-183,
(snows, 1 en ws. (1927) The Mora and fuioa of Nays
Archipelaze aod the Divestizetar Group 3; 4 sketch of
the coulopy of Pruklin Ltands, /hid, 46, 14206,
(1925) The flora amd fauna of Nuyts
Archipehige and the Investigators Group Ts: Notes on the
vepelinon ott linders tstarul fbid 49. 270-284
dX Wool IG. (1924) The fora and (im al?
Siva Archipelive sind the Inyestigiiler Group. t.
Feoloyy of Poursor tstands. (fre, 47, 97-114)
Paros, 8 Ch97 1) Pearson Island Expedition 160 6.
Winds Aided YS. 140-153.
Proctom: J. Bo (1924) The flon and tau of Nuves
ArelipelaLo wed the hrvestigatar Group Ss Phe heads
Mil AT. 79-8
Ruibinsos, ALC. SMT CI97O) Phe vertebrote fu of
NUVIs Archipelago, Sout Australia /biel 100, 171-176.
Canty. Po Moosry, Bg RObDOUR OP (L990)
“Soul Austrahas Offshone Islands’, Australie
Herjiaee Comrmossion, (Australian Cioverament
Publishine Service)
Shin Wo (1973) Pearson Psland Cxpedingn £4ou tl:
Crogtaeca: lsapoda. Themis, Ro See, So lise 87 VOR 1 2.
SHAME SAL THOMAS, EM (T9871) Pearson Island
Expedition L960 1: Narrative, [iy 95, [2{-122
[ame > & Womens py TL B.S. (1971) Pearson Island
Expeditiun 969 7) Sub-tidul coolopy al benthic alae.
Thiet 95. \5S-16%
& M76) Suubetidal uloal ave
sciterdss cevlogy of St Vravicrs Istind. South Australis,
ined TAD. 177-192
SMvTH M. (T97)) Peurson island Expedition (969
&: Reptiles. thi 95, 147-14.
SyMon. Db. C971) Pearson Tshind Expedition 19a
4) Contributions (6 the kind Mora. (id YS. 132-146.
THOMAS, bo M. & Dbkoyvo be (1971) Pearson fstund
Pypedibiun (969 4: The Pearson Iskand wallaby, did
95, 143-145,
Trisom. Be P1970) A review Ob dhe Precambrian and
Lower Palieozoie etonies of South Australia Ai
94. [93-22].
Tivbatt, NR (P9235) The flurs and fini of Nuyts
Archipelago and the Investigator Group 13: Ovapiera
MMi) 47. 362
TWIbs re CR. OTT) Pearson Istind Tapeditioen 169 2
Ceomorpholasy, (hid, 9S. 123-130.
Wath, Bo RO (19 24u) Phe ore und tawow ol Nuys
Arclopelige and the Investigator Group 7) the fishes
Tid. AT, 95-986,
— (19h) The flora aid) fund ot Nuves
Athipelago and tie Investigator Group 1: Shakes of St
Priners (shud together with a note on the mame af the
veouruphcul geauup. fue 47, 127-12
Wosrsos stb (i974) Pedrson Ishin Pspestinon |Y69 u
Hydroicds. (hid, 87, 133-200.
Wad. dt. G (1923) The fora and trun of Nuyis
Archipelago and (he Inivestigatar Croup (Appendix ro 8)
paelate vl soil samples fran Pearsun stand. Joik 47.
}}-T bs,
Wool fosrs 1) (1922) The Nom and Rian of Nuyis
Archipelagy com the dnyvestigdiar Group 2:
Monodelphiin manmnals, Jind 46. ES 1-198,
rs (1923) The flora and fauine of NWuyts
Archipelage and the Tivestigalor Croup 6. The
Didelphian manrials. bid 47, 824,
(1824) The flora und) Fauna ef Nuyes
Archipeliwa and the bivestizatin Croup 15; Che Pearson
ee: rotund Ue Flinders thine wallaby, Mind 48
|e 14.
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF
ST FRANCIS, SOUTH AUSTRALIA: SETTLEMENT HISTORY
By T. K. Arnott’, S. E. LAURENCE! & N. M. WACE?
Summary
Arnott, T. K., Laurence, S. E. & Wace, N. M. (2003) The Encounter 2002 Expedition
to the Isles of St Francis, South Australia: Settlement History. Trans. R. Soc. S. Aust.
127(2), 75-86, 28 November, 2003.
The settlement history of the Isles of St Francis is described. The voyages of Nuyts in
1627 and those of Flinders and Baudin in 1802 all visited these islands. Sealers and
whalers worked the islands but very few details of this period were recorded. St.
Francis Island was finally settled around 1859 and the pastoral history is described. At
least two shipwrecks are known for the islands and these are described from written
records. Finally, a catalogue of the remaining physical relics of the pastoral era 1s
provided together with a location map, descriptions and photographs.
Key Words: Isles of St. Francis, history, exploration, sealing whaling, pastoral
remains, shipwrecks, South Australia.
Femmccnans ap itie Ravel Sorte ap S. Met (2005), F272), PSK6,
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST’ FRANCIS,
SOUTH AUSTRALIA; SETTLEMENT HISTORY,
by T, K. ARNorrl, SE. LAuRENCI | & NM. Wace
Sumunary
Anson, To kK. Darmiscth SL && Wacr, NM: (2003) The Mncounter 2002 | xpedibion to the Isles of
St Prinis, South Australia: Settlement History, Trams, R. Soo, 8. fuse 1272). 75-Ko. 28 November. 2003.
The selilement history of the Isley of St Francs is deseribed. The voyawes of Nuvis ie 1627 and those of
Hinders dnd Bauidin in 1802 all-yisited these ishinds. Sedlers and whalers worked the islands but very few details
Wh this period were recorded, St Fringis Ishind was Vinally setuled around E839 and the pastoral history: is
deseribed. At least two shipwreeks are koowe for the istands and (hese are deseribed trom written records.
Vinally, @ catalogue ot the remaining physted! relies of the pastoral era ts provided together with 1 loeation mip,
deseniplions ind photographs,
KY Wokds) Isles af St francis. history. explanition, sealing. Whaling, pastoral remains shipwreeks. South
Australia
Introduction
Nhe islands af Nuyts Atchipelagzo were probably
the carliest discoveries by Europeans in what is now
Soull) Australia, They marked the castern extent of
The voyages OF Pieter Nuyts in 1627. His names for
the largest (wo iskinds of St Peter and St Francis
Were retuned by Matthew Flinders who was the next
hatropean to yisit the islands in 1802, On Unis voyase
he tater cheountered French navigator Nicalys
Badin - a meeting that is celebrated by the papers in
this special issue of the Transactions of the Royal
Sociely of South Australia reporting the results of the
Encounter 2002 Expedition.
Sealers and then whalers followed the reports by
Flinders of a hie resource waiting lo be exploited
wrong the many islands across the southern shores
oF Austrahia. The istinds were held as a pastoral luase
from T8S8 but when they were actually stacked is
unclear We do know that Lhomas Furley: Mosier
(Lloyd and Witham Berry Arnold finally settled on Sy
(ianeis Iskind wound [890. We ane fortunace jn
having a series of interviews wilh Clara Elizabeth
Siwyer who lived on St Francis Island trom 1901
until 1924, She was the daughter of William Arnold.
and her recolleeuons provide a vivid insight inte
daily [ile i this remote part of South Australia.
This paper combines all ayailable sources to
prodiice a histoneal background for the Isles of St
Francis and then describes und documents, for the
first time, the physical remains of human settlement
on St Francis: Island.
Hermie Broneh, Nituirah de Cultural Merilie Daeetonite
Depurtnent for Lavivanment & Hevitiwe. CPO) Bos [O47
Adelaide SA SOUT.
“1 Rodway St, Yorvalomla, ACL 2600
Methods
Iistorical sourees were combined into.u history ol
the Isles of St Francs, In particular, a series Of tiree
interviews vondicted between 1969 and 1972 with
Chira Sawyer provided a human dimension vo this
history.
During the 2002 Expedition. all the physical
remuins from the period of settlement on St Frances
Island were visited, accurately lovated with a GPS
(AMG coordinates using Datuin WGSS4), measured,
photographed und. where possible, their original
function wis established,
[had been hoped that evidence of use of the island
by sealers and whalers during the pre-seitlenent
period might also be found and specifically tireeted
searches were made for such evidence,
The 60 ton schooner Hosen was wreeked in
1860 on the north-west shore of St Francis Island and
searches for relies of this wreck were made both on
the beach ind underwater this area of Petre! Bay.
Results
Eiapeant Discavery
The Isles of St Francis and St Peter were first
visited by Europeans in 1627 when Pieter Nuyts, an
alicia of the Duteh United Rast India Company
(V.0.C), and Cuptuin Francois Thijssen, commander
ofthe Duich vessel Gilden Zeepurdt, explored this
section of the Australian coast during the course ol a
voyage trom Holland to Batavia. His venerally
assufied the islands were the most easterly paint of
contact on their traverse af the southern coustline
befor: returning westwards for Cape Leeuwin and
then north to Batavia (Sehilder 198s, 1989)
Th For ARNOT Sb LAURTNCTE & NOM. WACE
Nuyts ciroumuasigated the group of itunes yi
January 1627, nung the two largest St Pigter and St
brine. commemorating Nis and ‘Vhijpsen’s patron
mime saintly - these wre the cirhest revorded
Luropedn plaice names in South Australia.
No vecount of Nuyts’ voyaire has been found tn [he
VOC, archives, und there is nothing to indicate
whether (he Dutch landed upon the St Praners
Islands. although from an anchorme sviibel an
Hessel CGierritse’s chart of 1628. they may have done
se (hills L970). The ishinds are named on Dutch
charts Fro about 1628, and included on world maps
such 28 Johan Blicuw’s Funious Grooten Atlas of
Ih42-05, All the 17h amd Sth century charts an
which the islands of St Peter and St Prancis are
Marked show a continuous W-E coastline nanjed
"Nuyls Land? linking Cape Lecuwin lo the thands,
thos. defivting the northern edee of the Great
Australian Bight,
Given the remuteness al the logation. it 1s 10
stirprisits that (| 726 Jonathon Swell chose these
islands as Che setting for Lilliput, the mythival land
ol tiny peuple. in bts epic story Gnlliver Traveds
(Roboison eral, 1996),
No other visits by Europeans to these istands are
known. until the survey by Captain Matthey
Flinders. in command of TIMS) Jnpestigater. ip
February 1802. blinders praised the accuracy ol ihe
carlier Dutch charts, and mamed Nuavis Archipelago
in Frenour of als discoverer, as well as Si Praners and
St Peter Islands,
Flinders vharted the islands and the adjoin
coasting, anchoring in Petrel Bay, St Franeis Island,
where a himding party including: himself and the
botanist. Roberl Brown, walked across the tsland to
(he south-west coast. Flinders noted the presence of
hair seals, siiall kungaroos. penguins. Cape Barren
Creese. multon birds ("Mount Pitt Birds”) and
sules, Parties from the 4ivesrfuerer also landed to
collect plants qnd-animals for food, taking a total ab
1260 mutton birds on Pebriary 3 and February 8).
Later in P802 (les May) Nuys Archipelage and
the Wearby vousts were visited by the Trench
exploration vessel Le Geagreple commanded by
Captiin Nicolas Baudin. and agua in February: 1603
by Le Cuspariva commanded by Captam M. Louis
Preyomel. While Freyeinet named Henelon and
Masiflon Ishinds. itis clear from the deeaunts of the
breneh that the only ishind landed Ypon tr the
Heoway, RoCk02) Sl opnblished Diary al Bobom Brawl the
Belial Museiin (Natural Ehstaryb Lanta. OMgelli ot
Herburtiine Avettilignse, (anheres)
Dovuras, BO CEASA! Reparre by Bo Douglas Naval enitean ob vt
sieves Ol Thal portant oP the centsy bytoe belweadrr Pont Pow len
near the Western Getuuliiry af Wis Mreaviiva. sand the West end al!
Kongstear ishind. Sauith Anstinthiat: Parl ameniany lapers-
PME fnghuak 400, sce Wace und Powell 15, cabey Holy,
~ Sot tedira/aneteuinie 20 September Ths. Zed
wehipelage was St Peter (Brown 2000),
None of these carly visitors recorded the presence
of Aborigines oo any of the Nuyts Atchipeligo
although both Flinders ane Frevetnel ater then
presence ou the adjoiing mankind trom smoke seen
ashore. Freycinet makes the categorical statement ve
natives live on anwol tie stands (Cooper 1083 ). ana
no sione tools ar other indigenous arteliels baye been
found ou them. With present sea levels. St Francis
aid is nearby islands would have been beyond the
reach of local mainland Aborigines, who, at the time
of European contwel, hal fe suitable watereral
(Davidson 1935, Tindale (97-4. Lampert 1981),
Sealine
Ih is feasible that the fshinds of Nuyis Arehipelago
were Visiled by sealers belore Flinders? and Baudins
surveys of 1802-3. bur neither of these panvqguttoys
Hoted any evidenee of such visitors, American
seulers. Were opeldling at King George Sound m
Western Australia and al Kangaroo sland in bss
(Sexton. 1990),
Sealers from Tasmania were certaioly visiting
Nuvis Archipelago by the 1830s. The schouner
Miniberh (Caputin Jot Chart) tran Poy, Palyymple
made several voyages alone the south coast of
Australia, “/anedims ait afmtuse every reek beaween
Rass s Straits abe Denhtfil Island Bay’ ww Western
Australia (Marl 1854. quoted iy Bride L88s). Captiin
Hurt certainty visilud the St Prange Grotiyr in (832,
When he discovered a small aullying tshind whieh
was Dat placed on Flmders’ chant. and whieh was
later named after li. It was afier this voyawe that
the Affzaherh returned lo Lanmceston willl earge of
1340 seul pelts. 10 000 wallaby skins, seal orl and
salt Cumpslon 170). Some seal pelts and oil rom
this venture probably came from the St branes
Istumds. Sporadic seule probably conta
through the 19th and possibly early 200 centafres.on
the Isles of St Francis,
Whaling
Foreign and colonial whaling ships hunted Sperm.
Southern Right adhd Lunmpbick Whales in Seuth
Australia’s waters, predominantly during the winter
months. The Ameren vessels Afro and slimasan
took Right and Humpback Whales in bowlers Bay.
anu tioted the Nuyts Islands when sailing Irom Were
to Port Lincoln in September (840. but did nol stop
iO Investigate whales imonpst the islands al the end
of the season. Estimates of the numbers of whaling
vessels visita the South Australian coast durin a
whaling svason have been placed between 130 and
ZW
Shore-based whaling skitiens wepe being
cstiblished an the Soulh Australian coust from the
hue P8208, with the early 1840s being a peak period,
SETTLEMENT LS TORY 77
In the Great Ausuratiun Bight they were set up to the
west of Nuyis Archipelage at Fowlers Bay. and to the
vast i Streaky Bay. Sueale Bay and Coffin Bay, as
well us on Flinders Island south-east ol the
archipelimo (Kostoglou & McCarthy 1991). Whaling
Slutians Were alse established closer to St Francis
Iskind, al Point Peter in neurby Denil Buy, and
within the wrehipelage a) St Peter [sland (operated by
Hobart-based whalers) aud al Goat Ishuid. There is
ny doubl that the sheltered anchorage ar Petre! Bay,
St Francis Island, would have provided a usetil base
lor both shore-hased and pelagie whaling dperations,
although there is no historical evidence to support
His. Due lo deehimne whale stacks caused by over
exploitation, shore-based whaling operations alone
the west coust ol South Australia are belreved to have
ceased by dround | 850",
SH yey
Reports of official explorauon of the carly
mainlind, shoetly afer the foundation of South
Austad in 1836, have nothing fo say about the St
Mrancis Islands, although giving seme information
thout resources Wwhiel) later attracted visitars te their
witers A contemporary accouiit al the voyage ol the
Repu (Capiim Cart) to Denial Bay in 1839 ip
support of leyre’s first attempt to cross the Nullarbor
Plain ta Western Austrailia. mentions abundant
Whiles in Sureaky Bay’ In 840 the yessel
Herein called ab St Peter Islind for (Ynoutton
bird) exes, intending to contact and supply Teyre at
the slarlof his journey to Western Australia, but no
luamding as known to have heen made on the St
Francs Cirauip (hyve 1964),
The Goverment schooner
Yalofae (Captain
Douvlas) was sent by Captain Mart (then Treasurer of
South Australiy) to esunine the area im | 8358.
Doulas anchored in Petrel Bay. and daried anid
Hixed the positions oF Think [sland and Cunnan Reefs.
Depowls of penguin guano were diseovered on
Musilon sind. but were vorsidered to be too small
And champ te be ol mie uses
Niripn eiks
Meritenidlter
The 60 fod schooner Meitenede (Captain Harris),
bound from Port Adelaide for Fremantle. wis
houwhed in a sinking candivoen and subsequently
wreeked on the north-west shore of Petrel Bay, St
Vhotlipe Bnet (Whee Depatient too brviremiient apa
Heriae SA
© Seett lievdie Riser 2h Gelber (S34l ay
Doria TEER Sey Me
Phos le LESahy Mid
Nit letvtrarticas Rewtyiie, TA dune tASY Sy
‘Werdee Bruel) fhe Depannient top LAV reeniiient aiid
Herihipe. SA
Pruners Island (Wig. ba), on 20 May LSdt. The vessel
had vonmnenced ils voyage with a general carne ain
one passenger alinost one month earlier on 27 April
bit was hampered by strong winds aud rough seas,
With provisions punning shor, Captany [Waeris
anchored off St Peter Ishind on }6 May and sent hrs
crew ashore lo obtin meat and water, The vessel
departed three days later bul wus soon found to have
sprung wleak and was taking so much water that the
pumps could nat cope. forcing the captain to head tor
St Francis Island.
Theesix crew and the passenger creelod tents. and
upom imbally findme qo water oo the iskmd by
digging. they sent a boat to St Peter Island for soyne,
und elt news Of the wreek with that tskind’s only
inhabitant, While waiting over three months on St
Francis hefore rescue. they survived on Mourn butter
and other woods which were part of the cara, ane
‘on Wildl fow! ait? eves which (hey collected on the
iskiiel. The passenger, Mr Cieake, w wheelwriht by
(rade. made paddlewheels: tor the bout and further
‘aleinpts were mude by Captain Harris and some of
the crew to leave the iskud. bat these were
USsHecess lL.
When concerns were raised ia Adelaide that the
vessel had oot arrived tit Western Australia, the
Government schooner juselet was sent to searely the
West coast of South Australia. The crew of the redler
‘alled malo St Peter Island where they were informed
the Maitemera was wrecked ou St Franers Phau
The survivors were reseked and much of the cara
salyauedt on | September 1X60 and subsequently
renirned to Port Adelaide.
Unie Pessed
According fo & report! in the Sowth dustrafict
Reovisrer on) Jtine 889 about a shipwreek on
Fenelon Ishind, a lishing vessel (name aor reported).
‘Ufisherman ened bis hoy. wanted vespectividy Llavel
aad Arrald (probably Thomas Llavd and Wilh
Arnold) left Streaky Bay on a fishing Voyaue,
probably in catty Mity 1889 On 8 May PS89 the
vessel was gaehored olf Penclon Island when a
severe squall foreed the wachors to drag and drove
the vessel onto the rocks above high water mark.
holing the bottom of its hull, Afier spending eight
days on Febelon tskind the bwo erew rowed north 16
St Vrancis Island am their dinghy, where they
survived for the next twenty days on ‘ahevtles, cre 7
Following a report lo potiee thal the vessel wats
overdue a suureh yas instigated, The lwo survivors
were rescued [rom St Francis Island on 4 June [S80
hy Mounted-Constable Dowling and taken firstly to
St Peter Ishind ame then to Smoky Bay on the nearby
inainbanct!.
Clint Sawyer reported thal Lloye was wreeked on
Fenelon Island while sealing there some tie before
78 TK. ARNOTT, S. E. LAURENCE & N. M. WACE
Fig. 1, Physical remains on Si Franeis Island. The numbers in brackets refer to Fig. 3. AL Site of the wreck of the Heitematar
in Petre! Bay. St Francis Island. B. William Berry Arnold and son’s inseriplion near soak (196) C. Rear view of ‘ald
house’, smokehouse/hanging room and machinery shed/blacksmiths shop
D. Soak. dani and catchment wall ()¥e).
BE. Interior of puano mine i Petrel Bay (20), FP. New lighthouse (24).
he settled on St Francis Island!!, No-one has
specilically searched the shores of Fenelon Island to
see iPany wreckage still remains.
' Sawyer. C. B. (1969) Interwew with Mrs Clara Elizabeth
Sawyer by Dr DF. Dorward on 9 December 1969. Notes of the
inlwrvicws now in the South Australian Archives, State Library,
Adelaide
'S\waer. ©) b (1971) doterview with Mrs Chiara Elizabeth
Sawyer by Mr. A. Shepherd. May 1971. Notes now in South
Australian Archives, State Library, Adelaide,
Mast Bay
A deep cove on the south-western coast was named
‘Mast Bay’ by the Arnolds. The name relers to a
vessels mast that was pulled up the cliffand erected
by Willian Amold as a derrick at the Petrel Bay
landing. There are no other recorded vessels Jost at
St Francis Island, so the mast may have drifted from
elsewhere into the bay.
Settlement
The first lessee of St Francis Island was Robert
SETTERMENT HISTORY a)
Barr Sram. whose appheation, made in 1859 alse
included several outlying ishinds. but the stands
were Hot stocked for another thirty years. Barr Smith
held the lease until [X70 Honey Dale held the lease
for St Praneis. Franklin and Goal Islands trom E870
to 1872 (Robinson eve 1996). St Peter Island was:
alloted Under i grazing lease ar PSOS', but the Si
britneas Ciroup was not alienated until E880, A
pastoral lease eovermg St Pruncis, Muasillon,
Ponelon, bacy, Evans. Coat and the Pranktii islands
was ther issted to Thotas Purley Foster Llowe. a
slockholder of Kangarilla, The lossee during the
intervening years is unknown.
Lloyd leased the St Francis Group until E887 when
Alfred Burgess, overseer of St Peter Istiend, ind then
the Hosken family of St Peter Island aequired the
rub Sinve the lease was later travsterred to others
living gn St Franeis dsland, it is unlikely that St
Prineis Wes accupied before }S90, when the lease
was aay tauisfereed to Thoinas Lloyd ane Willian
Berry Arnold (Pig. thy who Wore deserrbed as
fovaciony af St Braneds dstand Lieyd and Arnold
were probably the first to teside permanently ay St
Francs und (he rittos of (heir Himestone buildings still
averlogk Peirel Bay (Pig, led
Apparently, none of the istinds tnder the louse
wire stocked Until TROT! but by bsve St Praneis
Ishind carrice L360 sheep (Robinson ey al. 1996).
Kresh water speiness around: the shoveling slopes of
the island (Fig bd) provided goad water for the stuck
dnd these were dammed 16 provide aw permanent
supply
So Veoh baads Prrakisieed ¢h97 Pb Sarnrmany ad
[rine Loivte cose Se brumectse M isitlony Penwlen Pavey
Prektii Deis ahd Gout sands. Cvnipitedt hy Poe Saiwwver
Soule Sastralia) Departiventot Pande. 1S Shire (97) Mates
HW TSO Awelratiin Anehiaare Ste LE ybirvery, Adelie,
Histiny Heoks Voli Le Palio 4 Seyyice Welivery. bina
Serius Geen Pep iirio For Adri stiad ive Pr foneat ian
Servis: TRAN Pidtond Lense Fell iwieims. po Sut, Sorvpae
Ceeweriieal Sites LonE Lend Services Groaye Weypntnient
Ler Aone isthitiye A Thorny ion Serves
Pm WAER GL Meath
Mo Seawy ie € Libr be dad
TON AW DR ER. P9724 Takerview aah Mi Chinn it lesierth
Saver ls MiB A. Shepher 24 Octuber (Tt Noite nei Ht
South Apeteaticn Avehvees. Spike byhrw, Acehiate,
MArP AND Lye. OA. FIG LE Notes ob unt iilerview walle Mine
NMaebarhme by De Mo soit. Maret) (971 Mis Stack aphane
(neu Meds Seiler feign el tie Armolh clotdivi, spent seftenel
IH ys WHE Wen ai STD rneis isiiich alah PAK TE Akates
new aT Soh Apstraliin Archives. Sau babyy Adelaide
Pope TOA SAUNDERS WO Bibra Th Ne Morbiwsi AW
(O72) Nols CAE iterviews (WHI Mi PA Tet Mie AY,
Swaridevs, My ROLY. eel Mie We Mehul ge Ohoeernibal anal
{colin hy Dy NM Wace iy Geto 1972, [Sounders veal
Dy secre shou ruys sisitiiee St Piao ci the [920s ind (3th,
Mitolifd Visita St brite i PUEO rae vouch cull wal
SUNT Fakir seas friend the Apmokd Ghitly aml Viste St
Pete on Pe Dae Pa Mowe mois on phe Seri Austeatien
relives Suse rbrdry Atoll
" Sowyeme lO! PCT] pial!
SW VPM LTO PE de
“Aaw yr. et Perr diad,
From accounts of a visit to St Francis in 1900
(Maguire 1921, Vereo 1935), and the reeolleetions of
people living on St Francis (sland!) and
visting shearers!) it is clear that sheep grazing.
cereal and vegeuible growing on St Prancis [stinul,
lovelher will cusial sealing, fishing and guane
collecting in and around the ashinds lortmed the
hwelhood ol the two families Hiving on St Feaueis. A
few cows Were Kept between (0S and 1914") bul
apart from (hese ind sheep. dogs. eats and poultry
the only other domestic animals were horses used for
rouping, ploughing und pulling guane drys. Ducks,
Uirkeys und ehickets were also reared. The island
also curricd about 200 pigs for about two years
uround 1920 butdue to the diTcully of carrying feed
To the ishand Uns was abandoned,
Behiid the dures above Petrel Buy about ls
heelares were planied for vegetables: watermelons.
aWweel melons. pumpkins. onions wad tomatoes were
grown i sulligienl quantities for sale an the
imainlund. Chor Sawver recalls thats
We ante aren Are vevetables thea dilivt rece
watering. We relicd vie tans tae Navemlur wiiek
Here ented te bei on the Vewetablen. Wo ati
Weller inelan, Suet melon, ead pumiphins tall by the
Hin), vias (abu) 250 few por veer) were best
alse laty of tometoes 1 peuteniber trips ra. Marea
Buy fC'edunay wth Seat vetses of tonmeitees
Treat the southwestern port, Af heebires af licerne
Wis grown and to the Westoa fuether Tu le enh
heetares Of wheat and barhey, Pach year 30-40 dozen
sheurwalter chicks were smoked. soaked in brine ane
then sulted dowa in casks for consumption. us well
ws holed down t) extract oil for serviewie
agricullual machinery” (Rohisen etal L996),
The deposits of penguin guang in eaves around the
iskind (hig. be) provided ciel fertiliser and a sitll
expurt mdustry for several yours. Cun leases were
issued for the islands aver several periods, Altea
and John Tlooes aid Henry Burden held-a tease fron
TS83 lo P8922 uy dich several pastoral lessees al the
island i subsequent yeurs (Robinson ef ad, YG). In
OS A Maguire sasited the astand fora briet stay:
und noted that:
On daspection these Jpensain] cees Will he
found ta contain hinidreds of low of enane, Some of
then run a sormbdiviace under the surface) in fier,
are cone fied gente a tenes renin euaniieee (eater ca
HEE ATT Te Caree te eats to ihe shed,
Aearder ta he shipped ta scone part (Maguire 1921)
Arnold constricted a Shpway to slide bags of
HZUUNO OG Ketches. shipping about 200 bigs. 4 time.
The {ast shipment of cuaie alP fie iskiid was male
elo
Selfsullicieney was neeessary for survival inthe
harsh conditions afforded by the ishand. and water
Ivarispork svas essential, In this regard the residenes
At) TOR ARBOTIOS dy | AUIRENCE & No M.WACT
hie. 2 Schooner Sibece Geneth | ).13 nm. breadth 3,66 1,
depili LAT Mob bindre lO}. ac Murar Bay (Ceduna me
31. The Vessel was eventually wreeked ut Avonl Biuy
on 20) May (9877 while enaved in fobster fishing
(Heritage Broneh les — Depanmenr fie Lnyoonnent
tind Llerituge. SA).
used the Schooner Sunbeam (Fig. 2) hat was owned
by Lloyd te transport people. stock, goods and
produce between the island and the mainland. A
landing place with derricks was established an the
north side of Petrel Bay for foading und unloading
eared, A fonp metre dinghy was used to tranship
vuods between the Shedim and the derricks, A
stone woolshed and yards were constucted directly
above the boat landing A stone wall wits also built
across. the northeast arm of the island te contain
stock. and fany Wire fences were erected elsewhere.
A well dug behind the dunes above Petrel Buy, near
io the (wo houses. as well us mutiwater tanks,
provided w pood source of fresh water’,
After 1914 the ubility of the island to, hold stack
beeamie ulitenable, due to the best water springs, near
ihe liphthotise, becoming biter, and as a resull of
drought conditions Lor the three previous yeirs. I
has been chumed that the problem with the springs
was brought about by an earthquake’ bul
overstocking io conjunction wilh the drought would
stain the likely cause. Sheep nuorbers during this
period drepped 16 150_ In desperation animihs were
spread over nearby ishinds (Robinson eal 1996).
seb 2 CENTS dred
SAW LOQTOT LY fated
Sass CE PTTL Mates,
SOSA AS ERESDAWIN BEI OV TTES A MONI B Ss Madetitiis
Olfieg of Comune Wilts, Adelie, Buuh $89 116
Sawyer Ob elo id
Hisnory, Hyoke Valanie 22 Poke 4) Senviee Delivery band
Senvteus Opi Depart! Hor Aclieinintmitive Qe Latorritian
Services: (S88 rater Lew Geld Paygeaia. Mae Sot,
GHoognphion! Manes byt Lane Servroys Cre Bepariwent
tor Admmmistnilive & Hilo Services.
' Sawyehee PIS L) dtd
A tnapie event occurred on 1) December 19t4,
with the disappearanee of William Arnold's wile,
Alice Lydia, on the north-west side of the istanel,
apparently falling From welt? Following Thomas
Lloyd's death in 1922, William Arnold contued
until 1932 when. probably as a result of further
drought and failing wool prices, he finally
relinquished the lease to Sander Hansen. the lessee
of St Peter Island. By 1939 the properly wis ho
Jonger viable and the Land Board decided to spelt it
for several years. bub agricullure was Hever again
ullempled, According to Clara Sawyer ber lather
William Arnold continued living on the ishined antl
ce. 19457. In 1967 the Isles of St Pruneis wore
dedieated as Puuna Conservation Reserves. then in
9724s a Conservation Park,
A lighthouse wis erected on St Francis [sland in
1924 und a surveyed section of the island leased to
the Commonwealth for this purpose’. This survey
produced i }927 shows the buildings. fenees and
(racks present al the time. The light, (¢ Chance
Brothers lantera mounted ona 10m high stech lattice
structure, way serviced annually hy ship and an
amphibious landing vrafl, with emergency repairs
carried oul by light plane. An airstrip was
comsiructed on the north-western side of the island
but. due te problems caused by sheurwaters
burrowing the surliee, this was finally abandoned
when the original light was replaced by a battery
powered uml serviced by helicopter (Fig, 1).
Physica Remains
Apart from the lighthouse and abandoned aiestrip,
the only physical evidence of past human wetivity
that was located and recorded during the 2002
expedition ta Sf Praneis Island originited fron) tie
pastoral and “uno mining endeavours carried oul on
the istand.
Presettlement Period
Searches were undertiken te lodite any evidence
of sealing and whaling sites without suceess. Tt was
hot expected that evidenee of sealing, aclivilies
would be found given the transient nature of the
industry ~ sealers generally moved from ishind ti
isha capturing their prey by clubbing or shooting.
and then skinning them for the valuable pelts. As
they had no need lo spend any Tength of Gine on and.
sealers tended not to build permanent structures,
The Arnold family are reported to have found
whale bones ih Petre! Biry, St Franeis Island, and on
Fenelon Islond®) Petrel Bay on the north-east side of
the island provides ideal shelter, and while it ts
possible that a whaling station was established
ashore, ax was (he case with St Peter und Coal
Islands, no evidence was located, An unstccess fil
scurell Was also made for a lookout site, asimilly a
SETTLEMENT HISTORY SI]
Bare rock
Bare sand
0 500 {000 1500 Metres
EE
an
199 190 North Point
yp 19h
193
20
a Airstrip (abandoned)
Fig. 3. A map of St Francis Island showing the locations of the physical remains from the pastoral period on the island.
Numbers on map relate to physical remains detailed under Pastoral Period,
a2 0K ABNOTT, S. 1, LAURLRCE & &,M, WAC
telllale sien of whaling activity, on the south, north
and qust sides of the island, Tis more than likely that
Whaling Vessels ised the anchorage it Petre! Bay,
and possibly ventured or cainped ashore at tines, hut
no evidence was. found,
According In the reminiscences of Clara Sawyet,
pieces ol crockery and copper nails, (mast likely
originating from the wreek of the MWestemea), would
wheoyer al tities on the beach in the forth-vast
corner of Pelrel Bay, She also reported that her
father, William Arnold, salvaged the keel of the
wre Scurches were made along the beach in this
area of the bay ts well as cnderwater, without
suceess, Due lo the high build-up of sand along the
heach it is likely that any remaining material wits
buried,
Gustoral Perivel
The physival remains of this period documented on
St Fruneis (shind during the 2002 expedition are
shown on Figure 3 and ace deseribed below,
1, Old House (338912 By 6402834 NO, (Pig, be),
The Sold house’. the more southerly of the two, was
constructed &. (KOT for Thomas Lloyd aad William
Agbold, Additional rooms were added uy the orginal
budding to acconmmodite ereases: in the Arnold
jimily (Thomas Francis, born in 1897, and Chita
Elivabedh. born in 190]. both on mainland Tyre
Peninsula), as well asa firmband and a young wart,
with Lloyd vermaihing: single throughout his
el Paeine north-east and overlooking Peoe!
Bay. ihe six-roomed house is built of limestone sand
momar With au galvanised rea roof, and a limestone:
loneed yard fit the front. The main room, at the
northeast corner, hus a chimney en its qorth wall.
Twu above-ground, rendered limestone tanks are
uched tr the house. a squareone al the rear soull-
west corner, aid a eireular tink at tie south side of
the house, adjominge (wo rooms and verandah, whieh
seen la be iter additions. The house is in i
(ilapidited condition and the walls and root are
vovered by gratlitt,
2. Machinery Shed and Blacksmith’s Shep
(A38873 1, GIOQKIS Ny (higs fe 4a). A short
distinee, approxtimately 33 1, belrind the ‘old house’
jou Collipsed machinery shed and bhicksmth’s shop
built of bmiestone, with the most evident clues ta its
use being the remmaiis ofa horse draws reaper und y
Sawabre db EPPEL) fted
Sayevgte db CIM FL) vel
South Austhalial Wivths. Daiths & Minritaes: Reeds. OTe ul
Consumer Allis, Adelaide, ae 12
Soul Australie Births, Deattis & Maruges oct. (Too at
Canstiiner Stains. Adeline G82) (4d
SIS OT TOD) Ted,
par of bellows. A substanrkil ubove-peound,
rendered Hinestone umk didjains the shed at its south-
west end, Overall dimensions of the structure are
14.3 m width and 5.) m1 depth.
3, Possible Smokehouse or flanging Room
(338K66 F, 6402823 N) (Fig. Le), Approxtinately 10
m north of the machinery shed isu collapsed
limestone building of circular eonsirietion with an
internal diameter of about 2,6 m, und tinher door
frames sull standing of the west side, A seetion af
What appears ta be a ship's mush 0.4 im diameter,
stands upnght within the confines af {he ruins on the
vast side. The purpose of the building is unknown at
this stage. although i iy possibly have heen a
smokehouse and/or meal himeing ro,
4. Rendered Lintestone Tanks (339 05% lb 6402604
N), Thvee below-ground tanks i close proximity te
cach other, (wo rectanwulat dnd one eiren bir
5. Collapsed Limestone Wall
(339130 1. 6402674 N)
Building ind
6, Rendered Limestone Pink (A49020 EB, 6402836
N). Cireuku above-ground tank 5.0 nr diameler,
7 Square Iron Ship's Tank (339020 |, 6402846
N). OF riveted construction and sed (is 0 water tpk
K. Twe Lintestone Walls (338990 EO o402%50 NS
ne 338989 VL 6402862 NN). Possibly used uy ut
stockyard, the two walls af dry-stone consnnenon
are TES i apark FO. m an length and 70 high
Posts and wire have plse heen used us partol the
northern stone wall’s construction. ‘There js nu
evideuce of g vlosing fenee at each end
9 Rechingular Lintestone Structure and tron
Ships Tank (338968 FE. O402890 N), A reetanguber
structure With walks (28 m Tigh. and dimenstons of
S.4omn by 3.7, umd an aternal dividing wall An
entry is sittated in the external wall on the south-wast
side and the mtenial wall has @ gap to provide wecess
ty each internal space, Remnaits of wooden poles: al
the corners suggest the structure wis rooted, The
sqtuire iron ship's tumk on the torth-west side was
probably fed wetter from the stirueture’s rool, While
the purpose of the structure ts unknown. il may hove
housed poultry,
10. New House (338717 1, 6403008 Ny (li 4b).
the ‘new house? was constructed ©, L216) to
aceommodale a fiarmhiand and his wile, although
jhey did bot oceupy it as she refused to tive on the
island ft was oevupied for some years by Thomas
Armold and bis family’) Facing east and overlooking
SETTLEMENT HISTORY
Pie 4. Pliystkubrematns an St Piaeis island Te nuinheos in brackets veler lo Cie, 3.
shige) bhieksimi’s shup (2) shower a dorsediiwiircuper ddel pura bellows, He Views of dhe nether sie of the ' New
Hotise (10), 0) Diyestone will attoas Neth Paiar rly Be Remaisofthe deerivks at the fetrel Pane boat landing (16).
Vo Sheep yrds und shearing sheet remains at ert Pore hs) be Simalb elit op puane nna on the seuth-west side al
ie tytand (22
Petrol Hay. the five-roomed. hotse is constructed of
rendered limestone witha corrugated iron root. The
Nu reo. at the north-east earner, With) veruidial.
has u collapsed chimney on is north wall, An above
groin, rerdercd [itestone tink is utluched to the
Heide On Tis south sieley ily the tanks divided in tive
by cin dnlermal stone wall The house is ina
iHkipidated condition anc the walls are covered by
wall The rear room and ied roof have collapsed,
A front yard is enclosed by Tenees of iron and stone
1B)
A. Remain ofthe imehimery
construchon, with 9 aletined pally leading lo the
house, Two holes of unknown purpose have teen
due inthe limestone a few metres fron the hose on
is South side, These holes are over ane metre in berl
dept and diameter:
1. ‘Two Wells (338929 1) 6402907 Ny
rendered lintestone Wells, with one Hull or water.
Two
12. Intreduecd Lomarixs Tree (248008 |e, b42087
4 TKO ARNOTT.S. EJ CAURENCL & SoM, WACK
N), A planted tree oF Tanvarix or Athel Pine (Zeer
aphylla) surrounded hy cirele of rocks
13. Stone Walled Yard (338913 EL 6402993 N),
Yard consisting of three Hinestone walls af dry-stone
COMSETUCHON,
l4. North Point Limestone Wall (438782. b,
O403380 N). North-west point of the stone wall
(338723 [i 6403545 N (Fig. de). A wall of dtry-stoue
construction separating North Point fran the
remainder of the island, Probably used to contain
stuck duting shearing operations.
15. Gate in North Pomt Limestone Wall (338810
Pr, 6403382 WN),
6. Derrick and Landing (338976 F, 6403483 N)
(Fig. 4d). Two timber poled derricks above the boat
Janding, with one pole still standing and two poles on
the ground, The rusting remains of a winch dram,
chain and othee fittings are lying nearby. A
constructed ramp gradually slopes from the eliff top
down loa cargo platform above the derricks,
17. Stone Structure and Chain Above Derrick
(AS38973 bh. 6403505 N). Possibly used as an
anchoring point for top of derrick,
IX, Sheep Yards and Shearing Shed (338031 bk.
6403520 N) (Pig. de). Stone-walled stockvards ol
dry-stone construction divided by an internal stone
wall. The collapsed internal timber frames ofa stone-
walled shearing shed are evident in the south east-
corner, along with two rendered limestone tanks fed
with water fram the shed roof.
19 Soaks und Dams, A number of limestone and
mortar walls have been constructed to cereale clims
holding warer [rom soaks, springs and gullies, The
dams ure situated on the north, around both sides ol
North Point, aad on the south-cast side of the island,
below the lighthouse. They have been built on the
vranile base around the coast und range in: wall
hewht from 0.5 = 2.5
19a (338673 FE, 6403468 N). Collapsed wall built
Gl stove and morta
19b (338643 1. 6403430 Nj), Two walls [0m apart.
The lower wall is 10 p70 high, ane the upper wall is
2.5 in high.
Soutly Auairalinn Birils, (eats && Maorliges Revordis Olice ml
Consiiive Athair: Adelaide, IS 7) 108%,
South Austialii Burts. Deals & Marriiwes Records, OTe ak
Comsamer Adhith, Adelaide 287965
19e (338624 Fi, 6403400 Ny (Pig. Td Two wolls
IS mapart. The lower wall is |} im. high and the upper
wallis 1.$on high. Av iseribed slab of mortar (hig.
(b) nearby has initials and dates:
WBA I89? indecipherable} --presumably Willian
Berry Arnold
THA 1927 [indecipherable] - presumably Thorns
Franeis Arnold, William's son
The dites may relate to William's and ‘Thomas’
Marriages: Williand was nurried on 14 June 1896 and
Thomas on 17 Jane 1922" %,
19d (338614 F, 6403400 N). Stone wid mortar wall
0.5m high.
19e (338590 E, 6403374 N), Stone and mortar wall
1S om high, with # low wall to channel surfiee water
run-olf into the dam.
IOP (238903 EL 403704 SN). Collapsed wall of
mortar and stone.
| 9 (338934 Ti, 6403757 I), Good soak with water
ia natural rock depression mo evidence of dim
wills.
19h (339217 fe, 6405696 N)
Two small darnmed souks. P20 nr apart, on
northeast side of North Potut.
197 (339108 Ey 403582 N), Tridngulir din
formed by a low stone and mortar wall around a
sonitk.
19) (341262 , O40) K1S Ny. Remnants ofa low
wall constructed to contain spring water,
19k (340704 1 6401219 N). Trough and wall
compler,
(91 (340054 F, 6401207 N), Daiand fallen rocks
19m (340905 BE, 6401356 NY, Saal dam.
19n (340993 KE. 6401455 8) Small dans and sock,
199 (3390095 1 6403814 Ny, Simall dam,
20, Crug Mine (339043 EF, 6403557 N) (Fig. Le),
This extensive guano mine. beheved to be the lurgest
so far located in South Australia, is situated on the
south-east side of Sortly Point, [consists of a large
excuvated vbamber, 2.5 mm high, with drives ol
uround bso in height extending for about 100
inetres Under the limestone cupping. A supperting
column of rocks has been constructed just inside the
entrance of the main chamber. Phe area above the
SE TTEEMIENT TS PORY KS
mone entiince ts littered with stone cobble resultine
fron other diggings. Whilst nat analysed. the guano
i considered to be from penguins. Given the extent
of the mine. and its proximity to the boat kinding, the
wih extracled ts believed to tive been
commercially exported from the ishind.
21 Gino Mine (338830 b. 6405576 NW). A sinall
hole approximately 0.6 m diameter hus been
exenyated through the limestone capping to reach a
honontal fissure 1.0 m high contuinme pengum
guano. Andrea af about 3-7 ny square of euane has
beet Gaeavaled,
22) Guana Mine (338394 Lb. 6400981 NY (Mig. Al).
A Sinall guano nme Jocuted on the cliff top: at the
south-west side of the ishind still conlains 3 sual
hand truck used to remove the bags of guane,
23. Old Lighthouse (340743 bE, 6401747 Np.
Conerete foundation with rembant metal mounting
points, A small timber lranved and clad shed os
locuted nearby which contains two small band carts,
24. New Lighthouse G40716 L. G401680 Ny (Pie.
Hi. Conerete for (he new lighthouse was laid 24-1.
1973, The new lighthouse is a typical Mthreglass
cabin strueture surmounted wath a solar powered
Jit,
25. Rechingular Limestone Structure and Rendered
Limestone Tank (338735 bk. 6402400 Nj). The
collapsed remnants of a dey-stume and timber
construction are lying in close proximity to a cHeu lar
below-uroumdl Gimk. approximately 4.0 m in depth,
The remams.ofa limber water rough are lying on the
ground near the tank,
26. Brush und Wire Stockyards (33934 &,
402595 S). Remnants oF brush-and-wire stoekyards
and y race
27. trun Ships Chain (Sas873S EF, edO2517 Ny
Rusting stud-hik clin leated on the slope above
Potrel Buy.
28, Limestone Wall (340824 2. 6401289 WN). Wall
ofaury-slone construction erected at the end ofa post
dod-wire fence Time on the east coast of the ishrnu.
29) Bays of Guana G40704 Ey 6400586 N),
Collupsed stack of guano in decomposing hessian
bigs Gy sotth-ceast shore af the island,
Discussion
The history of the Isles of St Prancis embodies a
number of significaat elements i the carly history ol
South Australia, ranging froin the earliest European
discovery, the late voydwes of exploration, the
fargcly unrecorded activtlics of sealers und whalers
subdivision for pastoris, semlemenat on the ishane
ahd shipweeeks. Most of the physical cemains of
human settlement oi St Francis are those relating lo
the period when the islind was used as a small
pastoral holding Although it is one of the fow
reasumably sabstuntial island-based pastoral
properties off the South Australian coast.
comparisons can be drawn with equally ‘remote™
pastoral properties in the States far serth. in both
cases. there wits a need ta be almast totally sell
sullicient and structures were built la suppert both
the pastoral funetion amd the day-to-diy survival ol
the residents. Such structures typically included
dwellings. storave buildings (leed. implements.
provistuns). a shearing, facility. water storie,
stables. bhicksmith’s shop. Kitehen, yards and garden
and silerstruictures such a iment shed, smokehouse
und housing for poultry or pigs, The physical
remains analysed on St Pruneis Island represen
many of these aspects, but also melude evidence of
functions which are more specific to the island isell,
such us guano mining, laerites for the loading and
unfouding of cargo and the damming of springs. On
anumber ofthe vranite uiselbergs on the mainland of
Eyre Peninsula, catchment walls are commonly used
tw channel and collect rainwater Noweyer, the
majority of these structures oo St Franens tslund were
built to Colleet water from natural soaks, with some
Also huving extended walls te concentnite raiieater,
Although the islands in the group: have been
Conservilion Purks for many years now, with the
primary management focus bein on the natural
environment, the tangible remains of the earlier
setllament period on St Franers Pshaid add an eytra
dimension lo amy yistt lo these remote ishinds and
remind us thal they are still significantly intlucwecd
by their kuropean history.
Acknowledgements
The South Australian Research and Develupment
Institute committed a sii ficant amount of funding
to the expedition through the provision of their
Research Vessels Neorie and Geiser. along wath
lechinical support stall ound erew. The South
Austruhan Department for Environinent dined
Heritage supported the terrestrial program, The
University of Adelaide provided their ycssel
Thafasste and the Austeulian Geographie Society
coniribuied Financial support for the expedibon.
‘articulur thanks go fo Neil Chigwidden and his
erew on Veerde. who transported personnel and wei
to St Pruners bshind and ferricd-us to all the ishats an
86 T.K, ARNOTT, S, FE. LAURENCE & N.M, WACL
the archipelago where we needed to work, Thanks
also to the crew of the tall ship Exterprize for
transporting two of us (TA. SL) from Thevernard to
St Francis Island.
Thanks also to Michael Sincock of the South
Australian Department of Administrative und
Information Services, for providing access to Land
Title and Survey records for St Franvis Island.
References
Brow. Tob. (1898) “Letters from Victonian Pioneers”
(Public Library. Melbourne).
Brown. A. J (2000) “Hl-starred Captains: Plinders and
Baudin” (Crawford House, Adelaide),
Coorrr, H. M. (1953) “The Unknown Coast: being the
Exploration of Matthew Flinders along the Shores of
South Australia 1802” (Author, Adelaide),
Cuneston. JS. (1970) “Kangaroo Island” (Roebuck Press.
Canberra).
Davipson, D. 8S, (1935) The chronology of Australi
watercrall. JL Polynesian Soc, 44, (1-16, 69-84, 137-152.
193-207),
hyet. EJ. (1964). “Journals of expeditions of discovery
into Central Australia, and overland Irom Adelaide to
King George’s Sound, in the years 1840-1: sent by the
colonists of South Australia. with the sanction and
support of the Government: including an account of the
manners and customs of the aborigines and the state ol
their relations with the Europeans”. Facsimile edition:
original published London [845. (Libraries Board of
South Australia, Adelaide).
HALLS. C, 1971. The voyage of the Gulden Zeepaared, Proc.
R. Geog. Soe, dust. (S.A, Brapeti) 72, 19-32.
Rostoctou. Po & MeCarrmy, J. (1991) “Whaling and
Sealing Sites m South Australia”, Compiled by Paay, J.
State Heritaze Branch, Department for Environnient and
Planning, Adelaide.
Lamerkn R. 198) “The Great Kartan Mystery”, Terra
Australis 5, Dept, Prehistory. Research School of Pacific
Studies. Australian National University, Canberra,
Macuirr. A, (1921), An account of a trip to St Franets
Island, Proce. Ross Geog, Sac, of Atistralasia (S.A.
Branch). 21, 70-72.
Moore. (1. P, (1923-24). Notes on the early settlers in South
Australia prior lo 1836. /hid. Volume 25. 81-135,
(Adelaide).
Roninson, A. CANTY, P.. Moonry, PL & RuppucK, P(1996)
“South Australia’s Offshore Islands” Australian Heritage
Commission. (Australian Government Publishing Service).
Scuitppe, G. (1985) (Fd.) “Voyage to the Great South
Land. Willem de Vlamingh 1696-16977, (Royal
Australian Historical Society & The Australian Bank,
Sydney.) Translated from Dutch edition of 1976 by C,De
Heer. (see Appendix L. note &. p.165),
Scumpur. G, (1989) "Prom Seeret to Common Knowledye:
the Duteh Discoveries.” Chapter 7, pp 71-86 /n Hardy, J.
& Frost. A. (Eds). Studies from Terra Australis to
Australia. Occasional paper no, 6 (Australian Academy
of the Ehumanities, Canberra).
Spxton, R. T. (1990) “Shipping Arrivals and Departures:
South Australia 1627-1850; a Guide for Genealogists
and Maritime Historians” (Gould Books, Adelaide).
TINDALE, N. B. (1974) “Aboriginal Tribes of Australia™
(ANU! Press, Canberra)-
Verco, J, (1935) “Combing the Southern Seas” (Chapter
4). Ed, B.C, Cotton, (Rigby, Adelaide),
Wacr, N. M. & Lover, Bo H. (1973) “Yankee Maritime
Activities and the Early listory of Australia” (Research
School of Pacific Studies, Australian National
University, Canberra)-
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF
ST FRANCIS, SOUTH AUSTRALIA: GEOLOGY,
AND GEOCHEMISTRY OF THE GRANITOIDS AND
VOLCANICS OF ST FRANCIS ISLAND
By G. M. FERRIis*
Summary
Ferris, G. M. (2003) The Encounter 2002 Expedition to the Isles of St Francis, South
Australia: Geology and geochemistry of the granitoids and volcanics of St Francis
Island. Trans. R. Soc. 8. Aust. 127(2), 87-106, 28 November, 2003.
Basement rocks of St Francis Island comprise two dominant units, the St Francis
Granite and Nuyts Volcanics, which are ~1630 million years old. These units are
intruded by three generations of volcanic dykes and two generations of dolerite dykes.
The St Francis Granite and Nuyts Volcanics are aerially restricted to the Nuyts
Archipelago, with small outcrops of granite on the mainland. The St Francis Granite
is a predominantly massive, high silica granite (> 75 wt% SiO,) with a low mafic
content (<2%). The Nuyts Volcanics comprise a felsic suite of subaerial volcanics
ranging from dacite to rhyolite (66.06-75.06 wt% SiO,), which may represent
localised ignimbrite flows due to the presence of flattened shards. Both the granite
and volcanics slightly post-date the St Peter Suite, which crops out along the
mainland coast in the Ceduna region. The St Peter Suite is characterised by an
expanded SiO, range (47-76 wt %) and has similar geochemical characteristics to
modern magmatic are rocks, consistent with formation in a subduction-related
environment. The NuytsVolcanics show geochemical affinities for formation in a
volcanic arc setting, hence suggesting that the western Gawler Craton was undergoing
subduction at ~1630 million years ago.
Key Words: Isles of St Francis, volcanics, granite, geochemistry, volcanic arc,
subduction.
Framydenions if tie Ruse Sacto ap S. dave (20038), P22). 87 LU
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS, SOUTH
AUSTRALIA; GEOLOGY AND GEOCHEMISTRY OF THE GRANITOIDS AND
VOLCANICS OF ST FRANCIS ISLAND
by G, M. FERRIS
Summary
Pikine Gy MA (2003) The Licounter 2002 Espedition to the Isley of St Prangis. South Australian Geoloay woul
weuchennathy of the gritos and valeames of St Francis tshund. 7s. AL Sve. Se deat 127(2), 87-100, 28
November 2008.
Baremont rocks of St hancis Island compre hwo domi units, fhe St Francis Granite une Nuyts Voleaes.
which ale 1630 million yeas olf, These units are iniraded by three wenerutions of yileanic dykes and uve
generations of dolerite dykes. The St} raneis Granite and Nuyis Voluanies are derially restricted 10 the Mauyts
Arehipeligo, with sinallonterops oF arainite on the mstinhind. The St brandis Granite isa predominantly massive,
Hivhsiliva grime (975 wily SiO.) with alow mafie content © 240). The Nuyts Voleanies comprise st felsic suite
oF subse voleames ranging Trem dace to Myolte (66.06. 75,06 wit) SiO.) whieh may represent localised
Hgnimbrie flows die to the presence of Mallencd shards, Both the granite and voleamiey slightly post-dute (he St
Peter Suite. which crops oul along (he mitiniand coust in the Ceduna repion The St Peter Suite is eharuetansed
by an expanded SiO. range (47-76 wt Sd and has sina geachemicnl charaeteristes (oO modern magmatic are
rocks, consistent with formation ina subduetion-velsted enyiroument. The Nuyis Voleanies show weoehemial
allinities tor Conmation ina volcanic tre selling, henee suvwestiwe that the avestern Gawler Craton wats
undergone stbdiiction 4) L630 millon years ave
Kiy Worhs, Isles oF SL Francis, voleanics, vranite. geachemisiny, voleanie are. subdaichon
Introduction
St Franeis Islind, the largest island of the Nuyts
Arehipelagolis 35 km southwest oF the township oF
Cedunit on the west coast of Eyre Peninsula, South
Australia (Mig, 1), Eleven days were spent mapping
ibd collocting sumples-as part of Encounter 2002. ¢
senuilic expedition undertaken jo commemorate
the hiventenary of the meetmy of Matthew Flinders
and Nivolas Baudin, The geolowy of the island
comprises two dotimnant basement unis, the St
branes; Cirinile und Nuyts Volearics which are
-1630 millions years ald, These units are overlain by
a thick sequence of consolidated Pleistocene aeolian
dune sands, Whieh forms spectacular clits along the
southern) side of the island,
Backzround
In 1973, the South Australian Department of Mines
(SADM) sampled granitoids of the offshore islands
from the Great Australian Bight to Gull St Vincent
(Major 1973). This (rip was only ofa reconnaissance
nalure, with simples collected for perrological
description, Seven samples tron St Francis. Ishind
were submitted for petrology, with five rock types
reported: rhyolite. porphyrittc dacite. alkah: wranite.
metibastc dykes and vranophyrie granite (Majo)
1973). In Febriary 1974, SADM condueted
Viiioiils, Pewolsuin dnd Dndrey Dyastorn, Prins Tlusties al
Resources, South Ausifalian OPO Boy (ett AdohadeS, Mist S00]
hiclicopler survey of all offshore islands in South
Australia. This survey was also o! a reconnaissance
Nature with no geological mapping tndertaken, bur
sumples were callected for geochemistry and
petrology. A series of reports were produced,
detailing results of this survey (Phat and Crooks
IO8tabc TOR2Qub. JOR) In 1982 SADM
undertook geological mapping of St Franeis. Island,
As part of this (rip. two Honours students fram the
University of Adelaide Geology Departirent
undertook geological mappmeg projects on-St Praneis
Island (Morrison 1982: Rosier 1982),
Selected samples trom St Francis and olher ishunds
have been diated wie Rb-Srooand kK Ar
geochronology, with results summarised in Webb oe
ef (1982. 1980), U-Pb zircon seochronalogy af acid
voleanics from St Peter Island prodticed an extrasive
age OF 162712 Ma (Rankine af, (990) and 163143
Ma from St Franeis Island (Cooper.e/ uf, 1985).
Regional Geology of the Gawler Craton
Basement Rocks
The Gawler Craton is ananeient crystalline shield
comprising Archaewni to Mesoproterozoie meta.
sediments, volcanics and erinites, which have been
teetonically stable. wilh the exception of minor
epelrogenie movements. since - 1450 Ma (Parker
199), 1993), The stratigraphy presented in this
section is summartsed from recent Hteriture (Drexel
erul 1993: Daly 1996: Daly ef ud. 998: Ferris et cal.
202) and provides the gevlovival framework forthe
8K (i M. PERRIS
Suniclair
kilometres
Vig. 1, Location of St Francis Island.
following discussion of the geology of St Francis
Island. Due to ongoing mapping, the stratigraphy of
the Gawler Craton ts constantly being revised.
Recent U-Pb Sensitive High Resolution fon
Microprobe dating has defined new units and
provided constraints on the timing of deformation of
major structures on the craton (Teasdale 1997;
Fanning 1997). The basement siratigraphy of the
Gawler Craton is shown in Fig, 2.
Archaean
Archagan Sleaford Complex and Mulgathing
Complex form the basement rocks to the much of the
Gawler Craton (Fig, 2), These are lithologically
similar and comprise orthogneisses — and
parayneisses, mafic voleanics and syntectonic
granitoids (Daly and Fanning 1993).
The Sleaford Complex, confined to the southern
Gawler Craton where it crops out along the west
coast of Eyre Peninsula, is divided into four units
(Daly and Fanning 1993):
+ Dutton Suite granitoids
+ Unnamed Cineiss
+ Wangury Gneiss
* Carnot Gneiss.
The Mulgathing Complex occurs on the central
and northern Gawler Craton and comprises 10 rock
units (Daly 1986: Daly and Fanning 1993):
}
}
‘A
Streaky Bay
* Metasedimentary Christie Cineiss
* Meta-igneous or metasedimentary
Kenella Gneiss
* Hopeful Hill Basalt
* South Lake Gabbro
* Lake Harris Komatite
* Blackfellow Hill Pyroxenite
* Aristarchus Peridotite
+ Mobella Tonalite and associated
synorogenic granitoids
* Unnamed cale-alkaline volcanics
+ Late-orogenic Glenloth Granite.
The Sleaford and Mulgathing Complexes
underwent regional deformation and metamorphism
during the Sleaford Orogeny at ~2440 Ma,
Palaeoproterozoic
Palacoproterozoic rocks are widespread in’ the
Gawler Craton (Pig. 2). and comprise
metasediments, metavoleanics and granitoids which
have been variably deformed and metamorphosed
(Parker 1993), The main stratigraphic units are
shown in Figure 2.
The Miltalic Gneiss (Parker e7 a/, 1981; Parker and
Lemon 1982) is a grey, migmatitic granite gneiss,
with a U-Pb zircon crystallisation age of 2014428
Ma (Fanning ef al, 1988). The Miltalie Gneiss was
intruded into the Sleaford Complex, and together
GEOLOGY & GEOCIIEMISTRY OF ST FRANCIS ISLAND
MO
Inferred margin
of the Gawler Craton
Faule
Sediuentard iver
Spilsby Suite
Mut jeela Gran bh
HR ithe Suite x
a
Uber Gaw ley Rune
Voleanigs
Lower Gawler Kange
Volonnir
St Peter Silite t
Tinkilla Suite
andl equi ves] ert
Moody Sui be
ane equivaletie
Moorabie Lurnat cer,
abd MeGregor Yolear jes
SS Browlvede/Doors Seb it
See Wallaron Grey
Myola Porphyry
Moonta Voleanies
Coober Pedy Ridge
parHgueisses
Donington
vite
Hutelidson Grvuq
Mount Wands Comptes
and Fativalents
Peake: Metemorphie
Mahel Creel Ride
% Mowlultaty fined sss
Mitalie Giueiss
Shewtord and
Mulgatlong Compl exes
Vidi) Perentiated Precambrian
QC} Basie bodivs
oe
bp Tarcoola +-~
Corunna
| Cong Lomerat
Fou, Tareouls and
Labyrinth Poriat ions
Tha
rs
fred J
ef
Inferred marzin)
of The fawier Crytoty
Leigh
Creek,
0 Lou
200 Kilometers fips
Gia Qabum COA 946 Projuetion Wonidistant lomie
Gawler Craton South Australia
INTERPRETED SUBSURFACE GEOLOGY
PIRSA Poblishing Servines ZO16RE UOY
_thterpreted subsurface geology ol the Gawler Craton (after Duly ef al, 1998).
uu GM, FERRIS
Hey form the base of the Hulchmsdn Croup (Parker
vod Lemon (982). The Hatehinsen Group and other
Palaeoprorens2oiv metosediments reflec! a period al
relative teeronic Stability and basin development,
The Mivechinsan Group is an ex tense sequence of
slalow chiste-and chemical marine sediients, with
ininor acid und mufie volcanies (Parker 1993), The
rue Uickness Of the Hutehinsen Groupe is uneertain.
hit Daly (1996) estimated.a total thickness of 4500
in, Parker ((980) subdivided the Hitehinson Graup
inte (liree main sequences;
* ou basal quartzite sequence (Warrow Quurtaite)
* a inixed chemical und clusne sequence
(Middleback Subgroup)
* upper pelitig Yadnarme selnst,
On the northern and western Gawler Craton
depocentres Jor Palucoproterocaie sedimennition
include:
* Tureoola Kingoolya area (Wilgena [ill
Jaspilite and overlying clastic sequence and
interbedded voleames of the Labyrinth
Farmaton)
> Poake and Denison Inher (Tidnamorkunu
Valeunies and overlying Baltucoodtia Ouartzite)
* Mount Woods tnlier
* Coober Pedy and Mubel Creek Ridges
* Qoldewares,
Following the depusiien of the above units. the
Gawler Craton underwent a period of orogenic
HeHVIY and associated magmatism. Inthe southem
cotlogd, the Ramban Oroweny wis delined as three
aistineh events; KD) front L845 to 1795 Ma, KD.
front 1795 to 1745 Ma and RD, from 1745 to 2160S
Ma (Parker aud Lemon 1982: Parker. 1993). The
orouveny Was been redefined its three nmiyor events
the Seill Event at - 1850 Ma whieh is constrained hy
intrusion of he Donington Surte (Perrds ef af, 2002),
KD. and KD, are now part of the redetined Kimbin
Orouenty and are constramnmed hy merusiou al the
Middlocanmp Grune at 1) 730 Ma woud the syie tu
posi-tectonic Moody Surte at ~ 1700 Ma (Ferris er eal
22)
The western Gawler Criton records ou multi-stuge
Proterovoaie feclonie history, begun with
vontingntal collision between (he Vowler Orogent¢
fone and the proto-Yilgarn Craton between 1740
and 1700 Ma (Daly erat 1998). This was probably
the initiation of the Karun Oroveny, although
major deformation within the Kahnjalt Mylonite
Zone (Kimban Oroweny) on the eastern margin of the
Giuwler Craton was occurting at this dine.
Continental collision wilbin the Fowler Orogenne
Zone produced mayor crustal thickening. whieh
resulted inthe formation ofa crustal suite of granites
bernween LOO and 1670 Ma (Hould Comples of
Tousdale, 1997), Within the Yarlbrinda Shear Zone.
these wranites are termed the Tunkilla Saite (Perr
2001, The suite and tty -cyulvilents are pre-
donyiattly felsic with wine ynatic dykes. hut the
full estent of Wis magnate event m still unknow
The intracraronic riff signature of these gramies 1s
most consistenl with u bavk-sre environment. wiven
ihe overall gompressive churacter al the rewion (es.
Zhi and MeCulloeh 1995),
Al ~ 1630 Ma. the St Peter Surte was intruded tale
the Nuyts Domain. within a continental magmatic
are setting, producing a sunte of tonalite to
eranodioritic rocks, similar in ehemistry to Avehiean
lunatic trondhyenmle vranodiorites. The Mfayts
Domain was amalgamated within the prote-Gayy ler
Block durmge the Palacuproterovonw gid
Subsequently cratammsed during the Mesoprotcrocatie.
Mesaprdterazarte
Puri, the Mesoproterozoie. the Gawler Craton
linderwent extensive felsic anorogenie magmiatisin.
producing the Gawler Range Volewnics and (iltaba
Suite granites (Fiz 2) The Ciwler Range Voleannes
cover un ures af ~25 G00 kn? aod are the dominant
Protero/oie oureropping ume on the Gawler Craton,
The voleanics comprise a series Of dominantly lelsie
lavas and iwrimbrites. with minor matic lavas.
The Mesoproterozole Miltaba Suite gruntles range
from syn- to posi-tectonic. wilh) granites locted
close to St Peter Suite rouks reeording postive dd
values, This indicates a juvenile source, possibly
related to basaltic uaderphaine of the subdueting
glib ul the base ol the erust i am overall veturn ta
huck-are extensional conditions,
Since the Gawler Range Voledinies amd [iltahi
Suite vramle inazmulisim, the cralon has been
relatively Stable. The Munjeela Giinite (Pig. 2) ts a
stall valume two miet ) garnet S-type wranite that
has a monazite erystallisation age of 1562-18 Mu
(Ferre 2001). The Manjeela ts interpreted to fave
formed during a period oF extension. which produced
foealised fult-hound basins. The basin related ty the
Munjeela Granite was subsequently buried, possibly
during reacuvauion af the Koontbba Pauly Zone At
1520) Ma, the Spilsby Sune was intruded oi the
southern Chiowler Craton and deposition of the
Corunna Convlomierate occurred of eastern Fyre
Peniisulia,
Rock Units of St Francis Island
Sr Francis Ishin comprises two dominant
basement lithologies, an alkali granite and aeid
yaleanles with minor voleanie und dolerite dykes
(Pig. 4), The alkali granite crops ation the eastern
side of the island, and the acid yoleanies crop oul ory
the western side. Overlyine (hese units are recen|
seditnents Meluding calearenites. calerete. soils and
beach sund (Piz. 3). The main sualigruphie units ute
GEOLOGY & GEOCHEMISTRY OF ST FRANCIS ISLAND oI
SURFACE GEOLOGY
tn
ws Lae
Lr ene
aot
: Lf2
Ln."
L22 “
Qhe 1"
Qhe
Qhe
{ Lo2 uf
LH
Nuyts Volcanics - Rhyodacite to rhyolite,
dark grey to pale brown, porphyritic,
with abundant enclaves.
Feldspar megacrystic rhyodacite dykes
Grey-black porphyritic rhyodacite dykes
Grey to pink, porphyritic,
flow-banded tryalite dykes
St Francis Granite - grey,
cr homblendefpyroxeng. Beating granite
Leucogranite - white - Bink,
fine to medium grained,
intrudes L-n
Black, fine to medium grained
12 dobrite dykes a
g Shear Zone
Quartz Veins
Qhe Modern beach sand
Q Undifferentiated Quaternary sediments
(including Bridgewater Formation)
St Francis Island — South Australia
woberich & Landing
Qhe
St. Francis Island
Q
uty
Lf ie
a, XN
uf
: “Lng
Ln
Ln3
uA
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St Francis
Island
LA
L22
122 tnt
uf
Lft
Lnt
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L22 -
Ln Ghe
Ln _bn2
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un
Ln
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500 1000 Meters
a _ ee
Datum GDA 94 - MGA Zone 53
* MINERALS
“ep PETROLEUM
ot South Austentia & EHERGY
gB) rroawy poesraws
cs AND RESOURCES 54
PIRSA Publishing Services 201685_003
Fig. 3. Geological map of St Francis Island.
92 G, M, FERRIS
described in more detail below, The focus of this
paper is the basement units of St Francis Island,
henee the only younger unit, the Bridgewater
Formation, is discussed briefly first.
Bridgewater Formation
The Bridgewater Formation comprises a sequence
of white-fawn acolian calcarenite and fawn reddish
brown. silts, which represent coastal acolian and
loess deposits. Coastal dunes were deposited in a
high-energy littoral and aeolian environment,
forming irregular hummocky dunes with tabular
foresety up to 10 m thick (Fig. 4). The dunes
dominantly consist of comminuted shell fragments.
Interbedded horizons of silts and loess are thinner
and contain a basal concentration of angular calcrete
clasts and dispersed, smaller calerete fragments (Fig.
5). The Bridgewater Formation unconformably
overlics basement rocks with no Tertiary sediments
observed (Fig. 6). These aeolianites are part of a
widespread Middle to Late Pleistocene coastal and
inland dune systems. During Bridgewater Formation
deposition, episodes of sediment accumulation were
interspersed with erosion and arid pedogenesis,
producing multiple horizons of sheet, nodular and
massive calcrete with carbonate soils.
St Francis Granite
The St Francis Granite (Flint and Rankin 1991)
occurs on St Francis, West, Masillon, Fenelon.
Smooth and Egg Islands in the Nuyts Archipelago.
and at Point Peter and Point James on the mainland.
U-Pb zircon dates of ~1630 Ma for the St Francis
Granite and Nuyts Volcanics suggest that these units
are possibly related to the same magmatic event
which also produced the St Peter Suite.
The St Francis Granite is pale grey to prey,
medium to coarse-grained, massive, homogenous
alkali-feldspar yvranite (Fig. 7), principally
comprising graphically intergrown quartz and alkali
feldspar, with minor plagioclase. Microcline ts the
dominant feldspar comprising up to 50% of the rock:
minor albite is present as small individual grains or
as microperthitic intergrowths with microcline
(Morrison 1982). The St Francis Granite is highly
jointed (Fig. 8), with the two dominant joint
directions being NE-SW and SE-NW. Kinsman
(1973) reported the major joint directions, based on
photogeological interpretation, as 012°, 000°, 140°
und 150°,
Malic content is low (<2%) and consists of
acvirine-augite, hornblende, and biotite, with trace
sphene, zircon and opaques, Lowder (1973) reported
the presence of the sodic amphibole ricbeckite.
Microprobe analysis of opaque minerals showed the
presence of ilmenite (FeTiO,) and pyrophanite
(MnTiO,) as small lamellae within magnetite grains
Vig, 4. General view of coastal chills of Bridgewater
Formation showing large tabular foresets.
Fig. 5. Detailed view of basal part of Bridgewater
Formation with coarse angular clasts af voleames and
valearenite within a finer calcareous matrix.
Fig, 6. Cross bedded and bedded Bridgewater Formation
unconformably overlying blocky Nuyts Voleanics.
GEOLOGY & GhOCTENTSTRY OP ST ERANCIS Ish AND %
; anes
: 2 ——
liek, 7%) Detwilel wen vl St Trane Granite showing
HOoeareyes, ares, ieee aed writes
Diy 2) fete OF UTS quite OMT WLIO Ae Pranens
Cini
(Morrison }982). On the southern side of St Vrancis
Islimd quarty veTiing, wilhin the peniite is common.
with two main sets treneing 140° nd S05. "Phe O50)
sel is cul by the 140° sel, Two zones of massive,
milky quate veining (Pig. 9) over on the southern
side of the ishind und whe vei set contains
anomalous aol (400 ppb)
Nits, Talcunies
The Nuyts Vuleanies. whieh erop out an St Peter
St Pravieis, Fiat and West Islands, comprises 9 suite
of felsic volcanics (S10, vontent of 46 7H wha)
huge iy composition from rhyodacite to rhyelite
On St Francis Island. the valewmes consist ob dark
wey (ind pink parphyritic rhyodaeite (Pig. LO) and
rhyolie (Pig. 1) The rocks contin white feldspar
phenoerysts yt te 20% of toll volume. Both allkalt
feldspar and plagiochiwe are present with scattered
quarts phenoerysis. Minor biotite (© 5%) is present iis
random Makes and may represent former hornblende:
Rare magnetite and imenile are present,
The Nuyts Voleanies contin -aburdait cnehives.
melding Mow-banded rliyalite (Mie. 12), coarse
addamellite clasts (bie. 13a) and moizodiopite clasts.
‘The groundmass is Hne-grained, quarlzoleldspathie,
and shows cones of sericite-rich layers, whielt may
represent) prinmiry Now banding,
The Nuvis Voleapies were originilly thought to be
partol the Gawler Runge Voleantes (1590 Mat), but
LU) Ph vireon geovhronglogy produced extrusive ages
of 163})3 Ma (Rosier 1982) for a rhyolite an St
Vraneis Ishind, und 1627) 2 Ma lorarhyalite from st
Peter Island (Rankin er ed, 1990),
On the custerm side of the island. three nsirrysy
shear vones are developed within the valoanics (rigs
4.14) Vhe shear vones are hivhly altered, with
Avernating seneieneh livers und quurtyo-
feldspathic biyers producing a banded appearance
(Fig, 14). In thin seelion, the guartvoleldspathic
ores CONTIN dissented quartz penoetysts Wa 2.5
Hit long. partly fragmented und sheared, as well ws
fenses of rehitively. coarse plagioclase, K-feldspar
and quarty (Purvis 2002), Opiugue oxides. serine,
clay und leucosene are disseminated and oeeur in
fimieloe Ural partly represent microshears, There are
also narrow veins with albire and minor Mhorite. wilh
a hinge lenticular vein. to 4 mm wide. meh in albite
erystiths 0-0-6 rant and interstitial patehes of Mluorite
to 2 Mm, Similar veins to 2 min wide hiwe K-
feldspar miore aburicdian tha atbite. and tehude
imberstitial Fluoride, Rare tine-eramed pyrite is
disseminaled (Purvis. 2002) Areas of coarser
quarivoteldspathic material vs wells How-rextired
an aveully Sehistose urcds euniposed al yurtas I=
teldspar and minor sencite, may be famine, Minor
oxide is disseminidted, Obe of the harrow shear aaies
also Tite Hiehualicars wallt serene sind elilorite, sas
d CG, M. FERRIS
well as abundant intersecting fractures and less
abundant ptygmatic veins filled by epidote 4
chlorite. This seems to represent a sheared and
ultered rhyodacite, possibly an ignimbrite (Purvis
2002).
Fig. 11, Detailed yiew of a sample of Porphyritic rhyolite,
Fig. 12, Poelave of fow-banded rhyolite within Nuyts
Volcanics.
VOLCANIC DYKES
Three suites of volcanic dykes associated with the
Nuyts Voleanics (Ln,,) intrude both the volcanics
and St Francis Granite (Fig. 3). Ln, comprises a
highly porphytitic rhyodacite with ~50% coarse
feldspar phenocrysts (Fig. 15). These dykes only
occur on the eastern side of the island and contam
coarse enclaves of microdiorite and andesite (Fig.
16). The dykes trend ~050° and 160°, and are up to
12 m wide. Lny comprises a suite of narrow (up to 3
m wide) dark grey-black rhyodacite dykes with
abundant euhedral feldspar phenocrysts (up to 5 mm
wide) within an aphanitic groundmass (Rankin ef a/.
1990). One dyke on the castern side of the island
contains sheared margins, which show a sinistral
sense of shear (Fig. 17).
Ln, comprises a suite of grey to pink, flow-banded
rhyolite to rhyodacite dykes (Fig. 18), These are up
to 20 m wide and have prominent chilled margins
and trend roughly E-W.
Fig. 13. Coarse enclave of adamelhte within Nuyts
Voleanics,
Fig, 14, Detailed view of shear zone showing banded
appearance and highly altered nature of rock.
GEOLOGY & GEOCHEMISTRY OF ST FRANCIS ISLAND YS
Dolerite and Basalt Dykes
Dolerite and basalt dykes, which intrude both the
St Francis Granite and Nuyts Voleanics, are dark
green to black in colour and composed
predominantly of plagioclase and amphibole. They
are generally | 3 m wide, vertical to sub-vertical and
trend NE-SW and NW-SW within the major joint
sets (Fig.
margins.
19). The dolerites have thin chilled
Mig, 1S. Coarse grained. porphyritic dyke.
16. Enclave of andesite/microdiorite within course
uruned porplyritic dyke,
Fin.
Fig. 7, Sinistral shearing along margin of black rhyodacite
dyke,
They contain irregularly disseminated plagioclase
phenoerysts to 10 mm diameter, in a fine-grained
basaltic groundmass. The phenocrysts contain minor
to abundant epidote and are clouded with sericite,
Other altered phenocrysts, rich in epidote with
disseminated oxide crystals, were probably
pyroxene. The groundmass has abundant
unorientated plagioclase microlites to 0.3 mm long,
as Well as abundant microgranular or fine prismatic
Fig. 18, Flow-banded rhyolite dyke.
Fig. 19. Dolerite/basalt dyke intruded into Nugits valeanies,
St Francis island,
es (1M, PERRIS
My, 20. Leveoeranite Tytruding Nuts Voleanies, West eoust
St Franets Island
Sti roncels Granite
7 Volranie dykes
a
Nuyts Volcanics
—n
5B 70 72 74 76 78
SIOZ %
bin, 2EOSIO) histogram for basenient anits fram St Pranets
Island
Or Mens seeBebic PI
Legend
» Nuyts volcanics
* S! Francis Granite
x Volcanic dykes
AN Dolerite dykes
Piv. 22. QAP diugeam for St Fromers sind basement anit
(Fields are frou Steeekeisen, 1974)
clinopyroxene. Areas of chlorite and fresh or altered
biotite are also abundant. Minor (7 8%) fine
vraunular oxide is also dissemmniated,
Leneosranite
On the western side of St Francis tsland, a pink
leucogranite intrudes the Nuyts Voleanies (Fig. 20),
The granite is medjum grained, equigranular and
Inassive. composed predominantly of alkali feldspar
and quartz, with prominent chilled margins having a
fine-grained glassy texture. Narrow yeins of
leucogranite intrude the surrounding voleanies. Flint
and Crooks (1982a) suggested this granite to be
equivalent to perphyrilic leucogranite of Goat, Lacy
and Franklin Islands,
Methods
Geochemistry
A total of 24 samples were colleeted for this study
and assayed for a standard suite of oxides und
elements, including trace and rare earth elements
(REE), at Amdel Laboratories, Adelaide. Eighteen
samples from Rosier (L982) and Morrison (1982)
were also resubmitted for geachemical analyses,
Whole rock analyses of major oxides were by IC4E
(Induction Coupled Plasma), trace elements were
assayed using IC4M, REE were assayed using ICAR,
und Au, Pt and Pd were assayed by fire assay (FA3)
and ameasured by atomic absorption analysis.
Selected geochemical results for al] St Francis Tsland
samples are presented in Table 1, Selected sample
analyses from the PIRSA geochemical daiabuse. and
from Deve (1997) and Kright (1997), were
incorporated in the data set for the St Peter Suite,
Results
St Francis Granite
Major Plenrerts
The St Praneis Granite is highly siliceous with
SiO, ranging from 75.5 to 78.6 wt) (hig, 21), and
plots within the granite field on a Streekeisen (1976)
plot (Pig, 22). The granite has an alkali content of
KO = 4.04-5 4 wt"and NasO - 3,57-4,.44: the tor]
KO — Na.O varies between 8.2 and 8.76 wt, Ue has
low abundances of ALO, (av. 11.37 wee). TiO),
Meo (ay. 0.08 wt), CaO (av, 0.12 wt) and P.O,
(Table 1: Fig. 23), The granite plots within the |-type
field on a aluminium saturation mdesx (ASD. whiel)
is expressed as niolar ALOV({CaO | NaO KO),
The ASL values range between 0.92 und 1-07 (Pig,
24). The St Franeis Granite plots within the A-type
field on a Whalen ev a/. (1987) Ga/Al diavram (Fig.
25). High Ga/ALO, ratios have been considered is
diagnostic of A-type granites by Collins ef af. (1982)
and Whalen ete, (1987), On an APM ternary plot,
TiO2 % Al203 %
Totol Fe as FeO %
GEOLOGY & GEOCHEMISTRY OF ST FRANCIS ISLAND 97
72 74
Si02 %
CoO %
No20 %
K20 %
0.20
68 70 72 74 76 78
Si02 %
Fig. 23. Harker variation diagrams for St Francis Island basement units. (+ = Nuyts Voleanies; x = Nuyts volcanic dykes:
* = SFG)
ON GM, FERRIS
68 70 72 74 76 78
Si02 %
Fig, 24. AS] plot for St lraneis Island basement units,
No20+K20 %
3
10000Ga/Al
ig. 28. GwAl plot for St Frincis Island baseiment Units
(atter Whalen pf af. 1987),
Total Fe gs FeO
Calc-alkaline
* St Francis Granite
+ Nuyts Valcanics
» Volcanic dykes
Na20+K20 MgO
Kin 26. Weight percent K.O + Na,QO-FeQ-MpO (AM)
diagram for St Francis Island basement units.
the St Francis Granite plots within the cale-alkalme
field (Fig. 26).
Trace. and Rare Earth Elements
On an Rb-Ba Sr diagram the St Francis Granite
plots m the strongly differentiated field (Fig. 27).
The granite is depleted in Ba, Sr, P and Ti, and
enriched in Rb and Zr (Fig. 28). Wyborn e7 al. (1992)
subdivided Australian Proterozoic granites mito five
eroups based on Sr and Y contents:
I. I-type. Sr-depleted, Y-undepleted,
dominated
2. I-type, Sr-depleted, Y-undepleted. fractionated,
low in incompatible elements
3. L-type, Srdepleted. Y-undepleted, enriched in
incompatible elements
4. L-type, Srundepleted. Y-depleted
§. S-type, Sr-depleted, Y-undepleted.
restite
The Sr-depleted. Y-undepleted patterns are thought
to indicate source regions that contained plagioclase.
but not garnet. This is used to infer the depth of
source, With garnet source rocks being indicative of
depths =45 km (Wyborn ef al. 1992). The St Francis
Granite is classified as group 2 (Fig. 28).
The granite is undepleted in Nb and more enriched
in Zr relative to the Nuyts Voleantes, It is
characterised by significant depletion in Ba (range =
25 — 460 ppm with an average of 64 ppm), Sr (range
2.3 — 75 ppm, average 12.9 ppm) and P, and is
enriched in Rb, U, Zr and Y (Fig. 28).
The St Francis Granite is REF depleted, with an
average content of 92 ppm. LREE range between LO
and 100 times chondrite, and ITREE ranges hetween
8 and 40 times chondrite (Pig. 29). The granite is
characterised by a significant negative Fu anomaly
(Fu/Eu* ranges between 0.14 und 0.59, ayerage
0.21), which indicates strongly differentiated
granite.
Nuyts Voleanies and Volcanic Dykes
Major Elements
The Nuyts Voleanies haye intermediate to felsic
compositions (66.06 75.06 wt S104, av, 69.7 wtllo:
Fig. 21) and plot within the trachydacite
dacite rhyolite fields on a silica versus total alkali
plot (Fiz. 30) and within the alkaline yolvanic field
(Fig. 31) All samples contain <7) wi) SiO. with
the exeeption af R496901, which has similar
geochemistry to the St Praneis Granite (Table 1), The
Nuyts Voleanies are high in CaO (up te 3,23 wes,
average = 2.16 wi), medium to high ALO, contents
(12.6-16,37 wt. average = 14.9 wi) and are 1105
poor (0.17-0.39 wt ™o) The Nuys Voleunies are
generally sodic at lower SiO, levels and become
more potassic with fractionation (Pig. 23). Marker
GEOLOGY & GEOCHEMISTRY OF ST ERANCIS ISLAND OY
Rb
Bo
Pig, 27. Rb-Bi-Sr plot for St Francis Granite,
100.0
10.0
Rock / Primerdial Mantle
0.1
Vip, 28. Trace element primordial mantle normalised plot
lor the St Francis Granite.
St Francis Granite
Rock / Chandrite
Fig. 28, Rib chondrite normalised plat for the St Francis
Granite.
variation diagrams for Nuyts Voleanics are shown in
Fig, 23. The volcanics plot across the A-type and I-
type ficlds on a granitoid discrimination diagram
(Fig. 25) and plot within the L-type field on an ASI
diagram (Fig, 24).
Trace and Rare Earth Elements
The Nuyts Voleanics have significant depletions in
Nh (range 7 — 14.5 ppm, average ~ 10,75 ppm), Rb
(range 70 — 185 ppm. average = 132.5 ppm). ¥
(range 11.5 — 28.5 ppm, average 21.5 ppm), Ti (Fig.
32). The voleanies are relatively low in Zr (average
196 ppm) compared to the St Francis Granite (Table
1). They are generally enriched in Sr (range 17 650
ppm), with one sample (R496901) recording low Sr,
with all other samples all recording Sr contents >220
ppm (Table 1). Sample R496901 has the highest SiO,
content and has similar geochemistry to the
No20+K20 %
Fig, 30. Total alkalis-sihea plot of the Nuyts Voleanies sand
voleanie dykes (Piel! boundaries are alier Le Maitre
(L989)
Subalkaline
volcanics }
y +
a 4 +
” .
a Alkaline
i volcanics
10
NaZO+K20 %
+ Nuyts Voleonics
* Nuyts - dykes
50 60 70
Si02 %
Fig, 31. Major clement classification diagram for Nuyts
Voleantes and voleanic dykes from St Francis Island,
GM, FERRIS
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Hig, #2) Pace eletnent primordia) mantle normatised plot
for Nulyts Velodnes.
300
Rech / Chonctite
Ee
Ce Nd Sm
vu | Tb
Gd
Dy Er Yb
bie 33, REE chondrite normalised plot for Nuyts Volcunies.
St Francis Gramte (ible 1), whieh) Sugeest a link
between the granite and yoleanies.
The trace clement and rare earth element (REE)
veochemisty show two distinet groups within the
volcanics. On av primordial mantle normalised plot,
the voleamues show diferent trends in relation to Rb,
UW. Srand Y (ig. 32). On a chondrite normalised
REE plot, the two graups alsa shaw marked
differences in RET content and presence of Ba
anomaly (Pig. 33). Group | his steep Light REF
(LRIEE) patterns with a signifieant negative Eu
uoomaly and Mat Heavy Rib (URE) patterns (Fiz
33). Group 2 has lower total REE content with
similar DRUE and HREE trends but with fe Eu
anomaly (Mig. 33),
Dolerite/Basalt dykes
Only two sunples were collected for geochemistry,
hence the data are vonsidered ta be of limited
signifeanee.
Discussion
At Tectonic Setting Jor the St frente Granite aint
Navin Volvaities
Coranitoid rocks constitule the most voluminous
rock type on the western Gayyler Craton, henee any
model for the teclome evolution of this region must
encompass extensive episodes of predominuitly
silicic Maenalism.
‘alawoproterovoie Lo Mesoproterogoie siftete
Inagmatisoy on the western Gawler Craton, provides
a record ol crustal evolution spanning - 130 nition
years (~1690 1560) Ma). During this dime,
Magmalism was not continuous, but oeeurred i Four
distinet pluses. which appear to represent different
leclonic settings:
1. 1690 1670 Ma Tubkilha Suite and equivalents,
which represent a domimuantly felsic suite with
minor matics
2, 1630-1608 Ma St Peter Stite, a tonalitie to
gramitiv suite, whieh tend to be sade
(NawOFK.O), with tractionaied HREE, nevligible
su anomalies and high Sr-contents, sugvestin
ther generation trom relatively mafic sources at
depths sufficient ti stabilise garnet, Phe Stbrincis
Ciranite and Nuyts Voleanies are part ol (his event
3. 15951575 Ma Hiltaba Suite and Gawler Range
Voleames. which ave potissic (K.O-Wa.O), and
exhibit undifferentiated TREE patterns,
negative En inomaties and low Sr contents,
suggesting a shallower, more feldspathie source
with abundant plagioclase
4. ~15600 Ma S-type Munjecla Gramite
The St Francis Ciranite has been dated at - 1630 Ma
which ts slightly older than the St Peter Suite which
has ali Pb crystallisation aze of 1620-4 Ma (Rankin
and Flint 1991), The St Peter Suite is characterised by
am expanded SiQ. range (47 -— 76 wee) relative to
other Proterozoic granitoid units (Fig. 34), 1s sodie
(Naik 1), shows high Sr K/Rb and Sr and
relatively low KO, Rb. Rb’Sr Th. U (ic. low heat
producing granites), REE and Nb, The St Peter Suite
is LREE enriched, REL and Y-depleted, with little
or no En amomuly. These geochemical characteristics
are similiar to modern magmatic are rocks and are
consistent with formation within a subduction related
environment. with magmas produced from partial
melling of hydrous basalt at depths withm the garnet
stability Meld.
The major clement chemistry of the St Peter Suite
indicutes cule-ulkaline allinity and the suite renniiis
relatively enriched ii CaO, MgO and FeO at high
SiO, coments, This. and the wide composition range
and unevelyed trace clement compositions within
the suite. suggest the units lo have affinities to are-
lype plutonic suites developed in convergent plate
sellings (ic so-called VAG of Pearee et ul. L884, or
(Oa ci, M. PERRIS
Hiltaba
Sulte
frequency
40 65 70 75 80
Vie, a4. SiO, histogram of the miin Proterozoie granilojel
nies uy the swestem: Gawler Craton,
Re (yin)
3 10 105 = 300
x
vY + Nb
bi, 38) Teclowie discrimination dingram for St Pranens
Girunile, St Peter Suite und Hiltaba Suite granite Giller
Pearce ef ul, 1YS4),
(aye-COLG — syn collision granites: WPG — wilhin-plate
wranitess VAG) volcanic are graniies, ORG pean tilye
LHHHTLCS )
| uiyls
Peles ai
Re (ppen)
$s
4 10 Rit}
Y + Nb
ico =O
Pio, 36. lectonie discrimination dian for Nuyis Voleanies
and Gawler Range Voleanies Gifier Pearee uf iil. 1984),
Cordilleran I-type granites of Piicher 1993), This is
supported by tectonie discrimination diugrams using
trace elements, and by other features such as late Ba
depletion and Nb depletion, all of which are
recognised as loutures of are-lype magmas,
The St Peter Suite is characterised by a wide range
of rock types inching tonalite, granodiorite,
Monzogranite. quarty diorite, dioriie, gabbro and
anorthosite. Tonalites were intersected in drillholes
in the Kalanbi area (errs 2001), and crop out alone
the coast al Rocky Point, Cape Beaufort and Point
James, Tonalitie rocks are common tn the Archaean,
and are generally considered to have formed by
partial melting of young, hot and fat subdacting
oceanie slabs. with garnet and hornblende as residual
phases (Martin L986).
The St Peter Suite is considered to have formed by
fractionation of are-type magmas and/or partial
inclting of are-related intrusions, ur mafic
underplating within a subduction-related continental
margin setting. The tectonic discrimination diagrun
of Pearee ef al, (L984) shows the St Peter Suite to
plot within the voleanic are granite field (Fig. 35),
The St Francis Granite and THiltaba Suite plot across
the triple point boundary (Fig. 35) The granite ts
imerpreted to represent a small volume melt which
relates to the subduction event, whieh produced the
St Peter Suite, but has a higher crustal component
and is highly fractionated, henee does not show the
sume geochemistry as the St Peter Suite,
The Nuyts Volcanies plot within the voleanic ure
field, whereas the Gawler Range Voleanies plot
across the VAG and within-plite boundary (Fig. 36),
The Hiltaba Suite and Gawler Range Voleanics
venerally do not show an are affinity. They record is
major shift from iu dominantly compressional
environment during the St Peter Suite magmatic
event to an intracontinental extensional environment.
but the initial source of heat may be related to earlier
subduetion (Le. back-are extension origin),
Acknowledgements
The South Australian Research and Development
Instilule committed a significant amount of fanding
io the expedition through the provision of their
Research Vessels Neer and Qewrey, along wath
technical support stall and crew, The South
Australian Department for environment and
Heritage supported the terrestrial program, The
University of Adelaide provided their vessel
Thalassia and the Australian Geographic Society
contributed financial support for the expedition,
Particular thanks go to Neil Chigwidden and his
crew on Neerin, who transported personnel and gear
10 St Francis Islnd and ferried me te all the islands
in the archipelago where | needed to work.
CLOLUGY & GEOCTEMISTRY GEST LRANOES ISLAMI {US
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THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF
ST FRANCIS, SOUTH AUSTRALIA: FLORA AND VEGETATION
By A. C. Ropinson*, P. D. Canty*, N. M. WACEF AND R. M. BARKERE
Summary
Robinson, A. C., Canty, P. D., Wace, N. M. & Barker, R. M. (2003) The Encounter
2002 Expedition to the Isles of St. Francis Conservation Park, South Australia: Plants
and Vegetation. Trans. R. Soc. S. Aust. 127(2), 107-128, 28 November, 2003.
A plant list of 99 native and 29 introduced taxa from each of the nine vegetated Isles
of St Francis has been compiled. It combines all records dating from the 1802
collections by Robert Brown, the botanist on the Matthew Flinders ship Investigator,
to the seven new records collected on the Encounter 2002 expedition. One species,
Sarcostemma viminale ssp. australe, collected by Brown, now appears to be extinct on
St Francis Island. A structural vegetation map of St Francis Island is provided,
matched to a floristic analysis of 339 vegetation quadrats from all islands in the
group. Vegetation change and recovery on St Francis Island since 1971, using
standard photopoints and transects across the island air strip abandoned in the late
1970s is discussed.
Key Words: Isles of St Francis, vegetation, plant species, photopoints, vegetation
change, Robert Brown, South Australia.
Hrasenctianen of tie Ravel Seelely af §,
day), (200%), E27(2), 107-128,
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA; FLORA AND VEGE
VATION
by A.C. Robinson’, PD. Cawry*®, N.M. Wact? AND RLM. BARKER
Summary
ROWINSON, ACC,
Isles OF St bruneis C onservialion Park, Soulh Australias Plants and Vege.
H-128. 28 Novenber. 2004.
Camry, PDL, Waer, NOM. & Bakkrk. RB. M. (2003) The Encounter 2002 | xpedition te the
Trams. RL See, So lust 127(2)-
Aphtnt Histol 99 iabve and 24 mtroduced taxa from dich of the tine vouched Isles of St Frincis has been
compilud, Te conibines all records diting trom the E802 collections by Robert Brown, the botanist on the
Mutthow Flinders ship diveviueror, ty the seven new records collected on the Encounter 2002 expedition. One
species, Nareostenmarer vininele ssp, australe, vollucted by Brown, now appears 10 be estinet on St Praneds Ishin,
“structural vegetition mip oF St Francis Island is wovided, matehed tou Durstic analysis af 339 vegolilion
(iadiits Hone all isktads inthe proup, Vezetation change and recovery on St Prancis island since 197) unite
stindard pholopoints and transects across the iskind airstrip abandoned i the lle 1970s 1 disvussed
iy Words: Isles af St Franens, vegetation, pkint species. pholopainis. vegetilion change. Robert Brown.
South Australia,
(utroduction
Phere are more than 150 ishinds around the coast
of Seth Australia canging from hear pristine
exiuinples of their pre-Europeun settlement stite to
those, partivularly: larger ones. which have been
changed yne devraded by humin intluence. The sles
ob St brincis, m the Nuyts Archipelago 53 km SW of
Ceduna (see Figs |. 2 in Robimsun er «/, 2003)
contin examples of both extremes. The smaller
ishinds are. avith the exception of some invasion by
bird cistribided weeds such us Common Iveplant
(Mesembhrvuihean epvstallinun) Alriean Box-
thorn (vei ferocissimum) and Curly Ryegrass
(Parupholis Hieurve), oesr pristine while the larger
St brancis Istind, which was occupied and used lor
farming und grazing between 1859 and 1939 hus
been extensively altered,
This paper consolidiites (he now quite extensive
scien fie data on the phinty and plant communibes of
is tshind group and provides new information or
vevelalion change on St Francis Island since the
)970s. Wh also incorporates and discusses the first
plant collections made in the Isles of St Franeis by
huropeuns.
ly TSO2 St Francis Ishind was visited tyice by
Matthew Flinders i the Jivestigefer, The first
Occasion wats Trom the 2nd to the 4h February. On
the 3rd February (he botanist Robert Brown. god the
gardener, Peler Good. walked trom the anehorase in
Brodiwersity Survey && Monona. Svietve a Conservalian:
Department dor Pnvitonment & Dertase GPO Box |047,
Adelie, SA STH.
| Roclway Sr Yarraliinla ACP 2a
Deife Eerie GP Seu ASHOba, Qeplrrenh Far banvcrerinicnt
& Terie, Highney Row Penis, SA 5069
Petrel Cove to the southern side of the island. Little
comment is made on the vewention, most remarks
concerning the excessive heat of the dity and the
abundance of muttonbirds, However Brown did refer
fo a “Bromus with rigid pungent leaves” which
“added lo our distress m crossing the island, a
reference to Trudie irritemy. which Brown was to
later colleet and describe frony St Peter Iskind. Good
collected seed of the 7ejodia fear St Francis, bul it
Was nol ripe. Phe two ventared out again in the
eveuing of that day when 500 muttonbirds were
taken us food for the ship.
The Javesrigetod then curried outa reconiaissaice
of the ishinds of the archipelago, particularly St Peter
Island, belore relurmng to St Francis [sland on the
evening of the 7th Febraary. Guod wus sent ashore
om the Sth Pebruary to try und gather some more of
the plants collected on the earlier Visit, but Brown
remuined on board ship, Goad eovered a different
part of the island to the earlier visit but with le
SUCCESS.
Plint collections made from the island are still to
be Jound m the Natural History Museum in London.
There are cizhteen herbarium collections recorded
for the island, Wilh nine seed collechons mide by
Peter Crvod (Table 2),
Materials and Methods
Inland Pleat Lasts
All plants recorded from the islands af the Isles of
St Franeis have been consolidated lo produce a
relatively complete species list for the archipelago.
Many visits by biologists have however been in the
summer months and some ephemeral species may
have been missed, Some islands. i particular St
[hs
A.C ROBINSON, PD CABRIY NM. WACL & B.M. BARICLR
Danni bbe toe Isles of St Francis iv biulnenis whine ubwevutions a) the vegetation ancdian collection af ptenin
‘Transport Ishanus visited
Duly Program
Td kuo Vialtheay Flinders and botanist Robert Brows
(finders [Si4. Brown [ey
4121071 Royal Socety of SA expedition
dnt LEY Wace
taniuiry 1973 Cedina High Sehmol stall!
Hie [N75 Wau
po) oso
(8-22 + bas2
Polontial Halthouse site vispechan
Biolywiea! Survey, Pholopombis estab listed
2-28) HRS
Februgey [99]
LRel2 1) 1996
[5-26 222
Photopoints established
Minlopoints re-photagraphed
Pholopotits te=photographed
Lncouiter 2002 expedition
ont St Prunes
Bul Sr Francis. Dow.
Masilloa. benelan
St Pruneis, Dog, West,
Masillon, Fenelon. Mart
Roar & Pelivopier
Hoal St Francis. Sraoutl.
buy, breelnie
Noun St Crancis, Smouth, Wo,
Preeling. Masillon, Fenelon
Han
St Praticis, bee. Dog. beeline
West, Musillon. bendlor
Heleupter
Heleaprer
Sout St Pranic, Maeotlon
Vural St Francis, Masi lion
Vuvat Sb bracts
ea St braneis, Smoath, Dow,
Masillon, Fenelor
Francis, have had more plant colleetiay effort than
uiliers, Dates of visits Lo the islands by biolowists are
shown in Tuhle |.
levetation Mappiny
Vegetation maps lor ull ishinds i the Isles of St
Feaneis Island based on a, 8910) enhugement ot
INV 1977 black and white aerial photography and
plant quadyar datw eolleeted on the 1982 Biological
Survey are-published i) Robinsap ey af (996). The
map tor St Francis Island was re-drawn, based on the
most recent colour aerial photography (30/4) LYRO),
aid all the vegetation quadiat dita now availittle,
The location of the total plant quadrats weross: Ure
Isles of St Froncis ts shown in bi |,
Ploaristic dmalysty
These quidrat dats were analysed by classification
and ordination (achniques using PATS: exploratory
data analysis soltware (Belbin (994a, b. ¢) lo detect
irends and patterns in tie data. As herhbuecous annial
ind bulbous plitnts do got stow ubowe ground for
Jong, periods they Were exeluded fron te analysis, us
were species only occurring once a the dita set,
Consistently detectable apnuals, bienmuls and short-
lived perennials were however (eluded with the
other perennials in the analysis. The anilysis was cau
us preseneuwabsenee data onty and the final naires
included 339 quadrats und 67 taxa covering all the
vewetated istunds in the Isles of St Prime (hig. 1)
The floristiv groups generated Irom this analysis were
(hen used to Aipdate and correet the original
vevelulion mip of St Panels 1shand based on the nost
recent evil photography and extensive traversing
vetoss the island during the current expeditign,
Community names and descriptions developed tron
the 1971 expedition were updated and modified to
conform t& current South Australian vegetation
Hiipping conventions (Heard and Channon 1997),
leveration Change over tine
hisht permanently marked photopoints hive been
ustiblished, six on StF Rweis (C92/7, 3, 4, 5,6 & 7),
one oo Masillon (C92/1) and one on Fenelon tsland
(C928) (Fig, 2) They follow the siandards for
National Parks and Wildlife, Soudh Australia
photopoiits and consist of two steel droppers
(camera post itnd sightiig post) set LO im apart vind
LSmiall, Photographs are taken with a giunmera fitted
with w $5 nm dens rest on the eanmiera post with
the field of view centred on the top al the sighting
posh Phalopoints are coded with the number of the
NPWSA reserve (in this case C92, Isles of St Brands
Conservation Park) and a sequential nuniber series,
Two photopoints on St Francis and one on Masillon
Island duplicated, as closely us possible,
photographs taken on the 197] Royal Society of
South Australia expedition, The remainder were
established either in 1982 or LOSS. All photapoints
were locdted, al accurate GPS location was recorded
and they were re-pholographed on the 2002
expedition. Standard yepotation quadrats (Heard ane
Channon 1997) were done at cach photopoint and
data was entered into the Biological Databases of
South Austalia SURVEY database and ineluced in
the vegetation pattern analysis.
The airstrip built on St Francis Island to service
the lighthouse was abandoned jn the early 1970s
when lighthouse servicing was converted to 4
helicopter-hased operation, There has been extensive
regeneration across the airstrip. bul (he former cdees
are still marked with marker cones. Four lranseel
lines Which crossed the 50m wide strip twice (Piz.
2) were sampled using a wheel-point (Grillin 19891.
the siting of the airstrip had taken udvantige of
some areas of naturally open Vegetation including a
sall marsh andin area of shallow sorl over limestone.
These open patches were almost entirely willin the
area of the airstrip and were excluded from the
FLORA & VEGETATION OF ST FRANCIS ISLES
109
Smooth Island
“ . | ; 3 » Petrel Bay
wide at. <
or
MT aes Masillon Island
Fenelon Island
Egg Island
Freeling Island_+:
: Dog Island
Fig. |, Vegetation quadrats across the islands in the Isles of St
transect paths as there were no comparable uncleared
sections to act as baselines for undisturbed
vegetation. The four transects therefore only
compared vegetation types that extended beyond the
airstrip on both sides. All plant species, bare ground
and litter (including dry grass tussocks) hit by the
wheel-point were scored. Data from each transect
was analysed separately and transects |-3 were then
divided into three classes as to whether they were on
(C) or off (E, W) the airstrip and re-analysed.
Francis Conservation Park.
Results
Island Plant Lists
There are now 128 plant taxa recorded from the
nine vegetated islands in the Isles of St Francis
Conservation Park (Table 2), The 2002 expedition
recorded one new species (Comesperma volubile
from St Francis and Smooth Islands) and five records
from other islands of species already known from the
island group.
110 A. C. ROBINSON, P. D. CANTY, N. M. WACE & R. M. BARKER
St Francis Island‘
|
.
co2ie
|
|
LMasillon Island
|
|
|
|
|
|
|
: Feel
e928
Fenelon Island
rated |
Fig. 2. Photopoint sites and vegetation transects across the old air strip on St Francis Island.
A number of taxonomic issues were encountered
when compiling this species list and these are
outlined below:
Exocarpus aphyllus
Material collected from St Francis Island has been
identified as both £. aphyllus and E. syrticola but re-
examination of the specimens has determined them
all to be E. aphyllus.
Atriplex vesicaria
Material collected in both 1971 and 1988 has been
assigned to both A. vesicaria and A. palucdosa ssp.
cordata. A\l but one of the specimens are male or
sterile and the single female with fruits had small
appendages on the bracteoles, This and four of the
other specimens were identified as A. vesicaria by
Paul Wilson (State Herbarium of SA records) and all
the specimens have a similar appearance. All
Atriplex records for the Isles of St Francis have
therefore been assigned to A. vesicaria.
Eucalyptus valatensis
A stand of wind-pruned eucalypts was discovered
in 1971 on the central plateau of Fenelon Island.
There was no indication that they had ever flowered
or fruited and they were tentatively identified on the
basis of leaf anatomy as Eucalyptus socialis (Carr
and Carr 1976). With subsequent changes to the
taxonomy of the £. socialis group, the 1971
specimen was tentatively re-determined as E.
valatensis. In 1999 a photograph was taken of buds
on one of the trees but no specimens were collected.
The 2002 expedition, two of the 38 trees in the
population had buds and immature fruit and a
specimen was collected. Fruits on this specimen had
a broad dise typical of £. valatensis but the valves
were exerted and the disc sloped inwards as in E.
socialis. This gradation towards E. socialis was also
reflected in the larger size of the fruits and leaves
more tapered and less elliptic than typical F.
yvalatensis.
Zygophyllum billardierei
Since recording in 1971 and 1982 this taxon has
been divided into four, Z. bi/lardierei, sensu stricto,
Z. angustifolia, Z. confluens and Z. flavum. Based on
its occurrence in deep sand on Dog Island and the
dune systems of St Francis and Fenelon Islands, the
Isles of St Francis material has been assigned to Z.
billardierei.
Triodia irritans
Although one of the Triodia specimens in
ADHERB from St Francis Island has been labelled 7°
bunicola, the type specimen of 7 irritans came from
St Peter Island. The specimen labelled 7) bunicola is
interpreted as an incorrect identification of these two
closely similar species (Lazarides 1997) and all
material from the Isles of St Francis is assigned to 7.
irritans.
The plant specimens collected during the visit of
Matthew Flinders in 1802 are of particular interest as
nine of the eighteen collections from the island are
the basis, or type material, of the new species Brown
(1810) described from there. These include:
FLORA & VEGETATION OF ST FRANCIS ISLPS V1
TABLE 2. Plant species recorded from the Isles of St Francis Conservation Park, Taxonamy and orderire follows the
Bialogical Databases of South Australia SAPLORA database. Introduced species are marked with an asterisk, New
recmuls from the 2002 expedition are inelicated with a +.
x
A 2 ae = 2
Serentitic Name Common Name g s Se i Ey a & E n
i g ‘Eo oh 3 vA Z Z E
- - eM S 2 2 & a s
a A Ww 4& ww e BB Le x=
URTICACEAE
Purielavia cehilix Smooth Nettle *
*Urtica urens Small Nettle *
SANTALACEAT,
Exocarpus aplyllis Leafless Ballart ? me id
POLYGONACEAE
Muehlenheckia ucdpresse Climbing Lignum 4
AIZOACEAE
Carpohrots rossi Karkalla * * * * “ ¥ & id
Disphime crassifoliun ssp. clavellatum Round-leaved Pigface , 7 * “ # bs =
Mesembryanthemum cevstallinum *Common Iceplant * ‘ * * ? * *
Tetagonia implexicomi New Zealand Spinach s + 7 * Ad * i 4
CARYOPHYLLACEAE
*Silene nocturne Mediterranean Catch{ly *
Spergularies maavine Salt Sand-spurtey »
*Spergularia mcelier Coast Sand-spurrey Ef ¢ % ¥ *
*Speraulavia rubra Red Sand-spurrey bs + ad
CHENOPODIACLAL
eliviplex cinerea Grey Saltbush * 3
Atriplex vestearia Bladder Saltbush * * * * * #
“Chenopodium nurate Nettle-leaved Goosefoot — * x
Disyocurpus hiflarus var, biflerus® ‘Twin-horned Copperburr — *
Enehvldend tomentosa var, (omentosa’ Ruby Saltbush * ® og " * * * 7
Halosarcia halociemoiles
ssp. falocnenioeles Grey Samphire + * . > = + 6
Halasarcia indica Brown-head Samphire Y
Heloxarcia pergranilata
ssp. perercuiiletit Black-seed Samphire + ” ¥
Halosarcia pruinose Blush Samphire sa a *
Muireana oppositifalia Heath Bluebush ie * * | * #
Rhagodia candolleana ssp. candolicana Seaberry Saltbush * * * i rs ® s
Rlegodia crassifolia Fleshy Saltbush wf + it * = i
Seulsoler Kali"! Buckbush * 1. /
Sarcocornic blackiaitre Thick-headed Sainphire *
Sarcocormea quingueflora Bearded Samphire #
Sclerolaena uniflara’ Bassia % # * ‘i % +
Theelkeldia ciffusa Coast Bonetruit * * bi = * * +
AMARANTHACEAE
Hemichrou diandra Mallee Hemichroa t + e a mS t t
FUMARIACEAE
“Pumaria capreotata ssp, capreolata — White-lower Pumitory )
CRUCIFERAE
“Brassica toupnefaruil Wild Turnip *
Cakile maritima Sea Rocket #
“ymenalohus prociumhons Oval Purse 2 #
Lepieitn folios’ Lealy Peppereress “ * * )
“Sixyarbrign ortentale Hedge Mustard *
CRASSULACEAL
Crassula colorate var. colorata Dense Stonecrop *f
LEGUMINOSAE
Acacia cupnlaris Coastal Umbrella Bush *
Acacia os wali! Umbrella Wattle +
“Medicnge palvmurphiar
vir. palyvanrprle Woolly Burr Medic a
*Mecicuge trancatila Barrel Medic *
*Melilojus incicc King Island Metilot *%
fempletania renisa Cockie’s Tongue mu * * 3
OXNALIDACEAEL
Onvalix perennans Native Sorrel it ¥
GERANIACEAE
*Erodiun cicutariun Common Sturk’s Bill #
12 A.C. ROBINSON, P. D. CANTY, N. M, WACE & R, M, BARKER
Parner 2 (Continued). Plant species recorded from the Isles of St Francis Couservation Park. Taxonomy ane ordering
follows the Biological Databases of South Australia SAVLORA datahaxe. Miivodiced species are marked with an asterisk,
New vecards from the 2002 expedition are indicated with a +,
wa
vie ra 2 = m7
Scientific Name Common Name 2 = * of 2 a & S 2
A 8 @ a is 3 2
Pelargonium australe Austral Stork’s Bill % * * ad * Pe te *
ZYGOPHYLLACEAE
Nitraria billardierei Nitre-bush * * * & * * #
LZreophvillun billardicred Coast Twinleat’ * * * t
EUPHORBIACEAE
*Euphorbia paralias Sea Spurge *
Beveria lechencniltit’ Felted Wallaby-bash $ * * +
RUTACEAE
Correa backhousiana var, voviaeea" ~~ Connon Correa * t ; °
Geijera lnearifolia Sheep Bush -
POLYGALACEAE
Comesperma volubile Love Creeper + +
SAPINDACEAE
Dodonaea viscosa ssp. spatiulata" Sticky Hop-bush ;
RHAMNACEAE
Pomaderris paniciflosa ssp. paralia — Coast Pomaderris 2 * 3 ¥
MALVACEAE
Lavatera plebeict Australian Hollyhock * # % s
Lawrencia glomerata’ © Clustered Lawreneta T od
Lawrencta spicatet Salt Lawrencia * 2 *
Lenvrenetia seyuramnert! > Thorny Lawrencia ‘i * 7 * * * % *
Walva parviflora Marshmallow *
MHIYMELAEACEAE
Pinelea microcvephela
ssp. microcephale! Mallee Riccflower #
Pimelec serpylifolia var, serpyilifolia® Thyme Ricelower Ht +
TAMARICACEAE
*Teunarix apliylla Athol Pine *
FRANKENIACEAR
Frankenia serpyllifolia $ , id %
Femkenia pauciflora yar. fruticulosa Common Sea-heath a + *
Frankenia sessilis Small-lcaved Sea-heath = * * * vi t *
MYRTACEAE
Enculyptus valatensis Yalata Mallee *
Melaleuca lanceolata Dryland Teu-tree *
UMBELLIFERAE
(pint PKOSTAID SSP.
prostragim var. prostratum Sea Celery si ci + i * . # +
“Bupleurunt sewcompos uy Hare's Ear * - ig 3 «
Daucus glochidiatis Native Carrot * =
EPACRIDACEAL
vleratriche parila! Shining Ground-berry .
PRIMULACEAL
Samalus repens Creeping Brookweed 7 : “ t *
APOCYNACEAE
Uyvia huxifella Dysentery Bush e
ASCLEPIADACEAE
Sarcostenmusr vinrinale
ssp. australe’ Caustic Bush =
GENTIANACLAE
FCenlaurin spicanun Spike Centuary *
RUBIACEAE
*Caliuin spurium ssp. ibienan Bedstray *
CONVOLVULACEAE
Wilsania beackhaused Narrow-leaved Wilsonia -
Wilsanio himnilix var. fumitis Silky Wisonta *
LABIATAL
Weviningio cluapieri > Shore Westringn 5 a *
Wesirniagia vigil Sul Western Rosemary *
SOLANACEAE
Lyeium australe
Australian Boxthorn
FLORA & VEGETATION OF ST FRANCIS ISLES
113
TAnib 2 (Continued), Plant species recorded fram the isles af St Francis Conservation Park. Taxonomy and ordering
Jollows the Bivlagical Databases ef South Australia SAFLORA database. Introduced species are marked with an asterisk.
New records frou the 2002 expedition are indicated with a +,
Serentifie Name
MYOPORACEAL
Kremophila deser(i
Mvoporium insulare
Plantae varia
GOODENIACT AL
Seaevola crassifolia
COMPOSITAE
Leiocarpa pluviscla
Leucophyta hrownil'
Olearia avillaris®
Olearia rummlosa
Senecio lauttus
*Sanedias oleraceus
JUNCAGINACLAR
LILIACEAE
Bulbine semibarbata
Dianella brevicaulis
Thyscanetus haneri
GRAMINEAE
elusirastipa murda
dustrostipa veliutina
“tren berhate
vented fear
Broniis avenarlus
“Bromus dianadrus
*Bramus madritensis
*Brotnis cubens
*Lolinm lofiaceum
“Paraphalis weurver
Peer fey
Pee poifornis
*Rastravia cvistita
Spinifer hirsunus
Sporobatis virginieus
vw
o. 3
Common Name = 2
Eg 4 4
ce oN a)
A aw 6
*Lyciim feravissimium *Atrican Boxthorn * + + *
Turkey Bush +
Eremaphila glabra ssp. wlabral' > Tar Bush * * Cj
Native Juniper * * * a
PLANTAGINACEAE
Variable Plantain
Cushion Fanflower * ee
AnGiGHIHUS Preissianus Salt Angianthus *
dAngianiius tonwatosus! > Hairy Anwanthus i 4
Brachyoame viliaris var, ciliaris Variable Daisy + * t ’
Brachyeome lineavilobia (lard-headed Daisy
Corila vulgaris yar. castrelasiver Slender Cotula #
Woolly Ixiolaena + sg *
Cushton-busli - t *
Trichanthodium skirropharien Woolly Yellow-heuds ¥ €
Melichrysum lencopsideuni Coast Everlasting +
Coust Daisy-bush % #
Twiggy Daisy-bush = \ ‘a ‘a
Variable Grounsel % t m *
Common Sovw-thistle ¥ + *
Triglochin centrocarpum Dwarl Arrowgrass
Triglochin mucrenatiin Prickly Arrowgrass
Vriglochin trichophorum Arrowgrass ®
Leek Lily t
Short-stem Flax-lily é
*
Anistrostipa clegaitisstita Flegant Spear-arass i
Jusirostipoa flavescens Spear-2rass ‘i # "
Neat Spear-gri *
Bearded Oat id
Wild Oat *
Sand Brome * ¥ * *
Great Brome ¥
Compact Brome i
Red Brome es
*Crinceston murinua ssp, sfeitictumn Blue Barley-erass -
Pauthonia caespitos White-top ay
Wimmera Ryegrass *
Curly Rvegrass 4 * *
Sealy Pou *
Coast Tussock Crass Rt
Puecinellia stricter yay, stricta Australian Saltmaish-grass *
Annual Cats-tail il
Spiny Rolling Grass +
Salt Couch + | i
oy
Titudarivritans®
Spiniles
*! Freeling Is
*|) West Is
» | Masillon Is
*
Zz
=
5 wr
— _
7
e &
5 El
a =
*
h
#
=
+
x
ak
#
*
¥
Fa
‘H
*
ar
4
" Herbarium collection by botanist Robert Brown from St Franeis Island in 1X02.
) Seed collection by the gardener Peter Good fron St Franeis Isfand in 1X02-
' Plants recorded as being collected by Baudin’s expedition from St Francis Island. but probably
1803,
lrom St
Peter Island in
lia A.C, ROBINSON. PD, CAN PYLTS. M. WACE & RM, BARKER
Sareasrenmet australe RASr (Bennet) 2872) - now
Sercostemimea viride (L.) R.Br ssp eeareule
(Ro Bry PLVorst)
lomlriche patile R.Br, (Bennett 2470)
Sclermlacna billera RABri (Bennett 3075) - now
Dissocorpus hifloris k Mull,
Lnclivieena ramentava R.Br. (Bermett 3036).
Lremophila glabrd (R.Br) Ostenf, (Bennett 233%
pipe)
Pimelea microcephed/a R.Br. (Bennett 3165)
Pimeled serpyllifolia R.Br. (Benen 3178 pp.)
Solorolucna vaifford R.Br. (Bennett 3076)
Hevirinuia deomplerd R.Br, (Bennett 2383 pp.)
Iwo of the species. Enehylaeie fomeniosa var,
famentoser and Sareasremmne vinta ssp. ausmale.
were ilustrated by the artist of the Javestigaror
Ferdinand Bauer, afd on the return to Pngtand
worked up into watercolours which were given to the
Adnviralty, but oat published. These walercolours are
now housed in the Natural History Musean in
London,
Bauer's line drawing of Surcosfenma (Pig. 3) was
published along with a number of other plant
drawings of bis by the Austrian botanist. Stephan
Prdhieher i 1839, Same 2000 of Bauer's original
Cyrra talon cea
44
- ?
- Rare
;
j Re
I op ae
' -
| / ‘
7 \ :
a ) \ | }
oe \ / { a7
\ }
/ ‘ 1
° | v :
\ | a, '
\ rath
=f \ | ? wa
-_ ~ \ ~ oe
+: \ Ly ;
AN POMes creed aene NO onet FE!
oy
bw 7) the Pertinand Bauer Wlastration of the type
specimen ol Surcosfenwig cuairade (iow Sarcoma
Winale ap. westrale) collected by Robert rawr foi
St Prunces tetrad Reprodiwed Won a mictatiche al
Fndhehyr (ER3¥) belt by the liber! at the State
Herbarium at South Australia
pener sketches of Australian plants and uninials
ended up in the Naturhistorisches Museum i Vienna
alien his death in Vienna in 1826, These are sul
being unalysed and there may well be more
iHfuisteations of plants frony the island.
After their meeting with Flinders in Eneounter
ay in April 1802, (he French, under Nicolas Baudin
inthe Gevuraphe, cominved west along (he southern
coust. They spent. a week ut the beginning of May in
the viemity of St Francis Island, but then put about
and made their way t Port Jackson, Baudin's
account (Cornell 1974) makes no mention of iny
landiall daring this time,
Alfier re-vietualling the French again leaded west,
spending some lime in mapping, Kangaroo Island, By
the 7th of February 1803 they were standing olf the
St Peter yroup of islands. on which they did make
landfall, They spent at least two days mapping and
collecting scjentific curiosities |) (his region. Peron’s
acount (Peron & Freyeinel 1807-16) relers lo the
island at whieh they made collections us He
Josephine, while Baudin clearly refers to it as St
Peter Island,
Thus if seems clear thal the French did not land
upon St Vrineis Island and that plant specimens
collected and. lubelled as such are erroneous, Two
such species. whieh are represented by specimens fh
the Paris Herbarium, are: Beveria fechenaultir (cited
inde Cundolle 1817) and Lewweplote brown’ (pers
comer Philip Short, Northern Territory Llerbarivn),
legelation Mapping
The Isles of St Francis support nine structurally
distinet types of nitive veyetation cover whose
distribution is clearly related to terran and the sub-
stratum on which they grow. On St Francis Island,
pust agriculture tas teh oa tenth canmuunity,
dominated by the introduced African Bosthorn
(yet ferdcissimim), and small) areas ol
introduced prusses with native perennial shrub
species regenerating on them. Although some
Hilrodueed species are Widespread on ull the islands,
it iy still possible to map the extent of naive
vegetation on the smaller ishinds and the maps,
published as Pigs 7S and 76 in Robinson ef af.
(1996), remain adequate. On St Prangis) tshind,
cultivation. wring and burning. and the spread of
many exotic plants have markedly inflaeneed the
exfent and botanical composition of the native
Veretation, and the probable extent of the original
native communities can only be inferred from the
distribution of veyelation influeneed by fuinan
activities, Which covers much of the istand lodiny. bn
addition there las been some regeneration of native
species since the orginal vegetation mapping based
oo [977 peril photography. This revised venelatlion
mapas shown i bag. 4
FLORA & VEGETATION OF ST FRANCIS ISLES his
LEISEMD
L
pecey Nitvarla fuller
\
\aireana |
UI) Pavasarc
Led Bare rack
[| Bare sanct
ia o
EE ————
1.5 }Gloretres
tn
Pig. 4. A revised vevetation map for St Francis Island
Phe following vegetation communities now occur
aeross the Isles of St Francis,
Qlearia axiflaris VAL OVEN SUROBLAND
lhere are only limited stretches of coastal dunes
on the Isles of St Francis, most of the shores ure
rocky und the sundy beaches are often backed by
limestone cliffs with litte dune development. The
most extensive dunes are found behind the beach
ubove Petrel Bay on St Francis Island and mn much
smaller patches elsewhere. Low foredunes behind
Petrel Bay are colonised by: Spinifex hirsutus. Cakile
maritima. Enpharbia paralias, Salsola kali, Atriplex
cinerea, Bromus arenarius, Bromus diandrys and
Lafivm foliqcewm, Few of the foreduie colonists on
St Francis Island can be found in the very limited
areas OF beach dunes on the other islands, although
most of the mit dune species are important in all the
islands tn saltbush communities. The main dunes,
merge into the sand sheets carrying saltbush
TA AC
vexelution und awe stabilised bys Ofearice esilaris.
Vintorin biltardiovei, Rhawwedia — ceandattoeires.
letragonia iiplesicomie and Enclildena tomentose
Var fetontosel
AN osimall stieteh of dunes bemveen the heach al
Petrel Buy dnd the old farmhuuses suppons taller
Woody vegetation than is found elsewhure, Scere
crussfotio here Jorms rounded bushes io metre or
more in heiht. several large Aveverpas aplaydiis
wndou small number of derewiehe parila grow
amon the mare Widespread dune shrubs already
noted Pwo plants of the intraduecd Janie play la
were ustublished on this dune inthe 19708; only one
remamed in 2002, A well hid been vonstructed
belie (his mote vegetated seefion al the duties
sugpesting beller weeess lo water tan ay ather
sutfounding plant communities.
fren feracixsionin TAU Ores SHRURLARD
Alou 2. ferooiwiiine has been recorded on
all the islands in the group (lable 2) a1 is generally
as scattered plants or stall stands that were rot
Jurge ehorth lo map tis a distinet plant community,
On St Francis telane thickets of £, ferocissinni tre
widespremdl across the deeper soils honeycombed
with Short-taited Shearwater (Pi//inus reniivastris)
burrows. ‘The understorey, where ib exists. Consists
of serambling shrubs of FL fonientaya var
munentanik triplex vesicuria, BR, candollecer and
Huelhelidia dithiva with a ground caver, in the more
open anes, al Mesentievanthennar crystadlinuan.
Qoarie raniilose LOW SHRUBLAND
Found in cricks on the sheel lintestone cupping ef
bev. Smooth and parts of Masillon Isluods, 1 alsa
aveurs in small patehes near the fighthatse on St
Fianeis Ishin where i merges into the Mesias
dhamprerd Low Sirubkunt
Viruelee bilardievet SUA KE ASD
Oo Sr Francis. Masillon und Ree Islands tits
yencnion community lends tm over where the
overlying @ulercie capping, meets the underly ip
iwneous basement On St Mranens bshind ib ts aba
found on soiall avtive clitop dunes whieh
mivariably be behiid Hinestone clits with) sandy
benches of them base; amb alse those dunes
ussoelted with blowouts amongst (he karst where
dune lnestooes ure bein uetively eroded by witd-
blown sand, Both these areas at aernve sand oo the
St braneis Ishind plateaus Usually carry some pative
Sand Brome (Brows ateneetost), lowether with
various Shrubs, The clifltop dunes are stabilised fi
Raiesdpe favesceas and (he shrubs 2 evd/faria,
AIvapariin lusidares and No bithardicned Their
siitiives ane colimesed by anntiats especially
sendbrome (adn Prosi ssp. peowireiinen, ane
ROBINSON. BOI, CANT, ALM, WACI&® BK, M. BARKER
various composites Ufeviehewnin lencopaidoe
Trichanthodiun stirrophordue wud letenrlies
famentonys), as Well as die ubiquitous Comean
leeplant, ta the large blowouts in the SW oot St
Francis Island. huge bushes of NM. bifliicred tive
stubilised mounds of sand, whieh curry few other
perctinial plats, and are surrounded by extensive
depressions of bare wifdswept Karst and shullays
sume.
Hewingia dampicet LOW SURVBLANT
His community, found on St Francis and Fenelon
Ishinds. consists of more or less dense (hekets ol
some of the following species. generally growing on
karst with Gide or ne sand cover and awiy from the
coasts: WO dampleri, Templerania retusa, Veet fet
oxwaldii, Acacia vuipnlerix, Dianella’ brevicaulis,
Trivia titans, Fxacurpus uphyliws, Dodunacu
viveowe ssp. spatiale Lrcarapditle idesven.
Melalened lancenlata Correa hetckhousiant vay
coriaces ark Plorelea inicrecephala ssp
merowepinda, This comunity also supperts the
isokited population of Luceliprus pedatonyie on
Fenelon Island. Tits Low Shrabkind contains same
eerwents up lo (wo metres tll often wach more or
Juss prostrate trunks. and the shoots show tig cheat
evidence af wind shearing, These larger shrubs thiyve
un open understorey wid assoended Toru between
the (hiekets of smaller shrubs notably Ly ave
auieale, Prankenia paueiilara vac feuthoutase
Lawreneh syiammlu, Krempphile etabra say
whee. some vhenopods aod (he prises ol
Mavesaceis and Danthonia caespitasea whieh erew th
the sandy crevices between the limestone blocks
Peloreeniium onstrate, which whabils kaest) ave
shatlaw sands away from the coasts om all the
ishinds is. Commun and conspicuous menber af the
eround flor, Michlemheokat delpressa anid 7
jiplevicoma creep over some plants avd
Curpedretuy rassil sprouds as a Walon Me etound:
These native-dombanted stirublands are (ivaded
hy esolic Spewies, mnelading 2. ferveedss dies
Biplennm senaenpustum, AE crpsradtinnin ane i
nunher of peasses (espeeially Marais Tacneve
and Crinawion dmucinuer ssp. waren), bol wlrelt
are Were abundant on the adjoining saltbush
communities. Ou St Franeis Iskanel most of the HP
dumpiernt Low Shrubhit hits been repkiced hy
intradweed prasshomds whieh are dominates! tes
exotic brome, rye and barley grasses and Aveddi en
polymorpla, erowinie fagether With reniiints af the
Native Understorey aml the burnt stumps ar the
larwer shrubs, Some dead burnt tranks af a/
famecolata und 6-10 Vivinke (and Towers in
February 2002) Irees lo the NW ofthe telthotse are
up tu 4m Jeng sugwestimg thata thieker and taller
fea tree seruh Formerly existed here, Che sive and
FLORA VUOLTATION OF ST PRASETS [SLES {|7
lenuth of brushwoud stems. ised ro shade the
freshwater souks ab the % cel of the island, and the
leslimony ol lormer residents also suggest that jec-
tree thiekcis. possibly similur to those on Pearson.
Minders. Gireenly, Wedge, Tavlon Boston. St Petey
abd Thistle Ishinds (Robtisan ofaf L296) formerly
occured on some of the karst areas af St Francis
Ishiand
Leeophyi brawl) LOW SURE BL ABLE
The Hinestone clils und rock-slrewn preeipices
which surtound the plateaus oa most ef the ists
support a putehy growth of mainly serambling or
shrubby perennial plants sich as L. fran 0
tuplesrcontid, Beverta leedenuutel, OQ. and be
punedarea san, fea tes and an the more stable
slopes. tagether with a vanery ab epheme»rul specs
such us Zpgoplavtim bilhwdtens, Senecio lavtys. wid
snmillor composite, The distribution of this
Vexenuion on ehils unt precipives seems to be
related to the stability and slope of the surfaces. bur
examination ub the NW sandy preeiprets af Duy
Island. ane of the fimestoms overlying the hs
Jeadlined OF Masilon [shind sugeests thal Gere ane
minor souks where the sands are camp within the
body al the dune hinestone, above layers of hard
roek. Such diunp situadions carry denser Coeckation
than the Wain body oF the chits, with hangire
misses OFF daplevicounn Made hevitolia, Pieler
seoopitifedig var senpadlifatia and Serretis
dleracens lon one such situauion on Dow ishind,
Inde ien Lo some OF the plant speeies noted wboye.
Hie preeipices surroungling Ure plateaux on te
islands are generally aligned more yr less parallel to
the shore beneath them, bul two gorges an the SE
coast OF St Prancis Island near the lighthouse cut
MO Hiestunes perpendieglar to the coast, Chere are
hotable differences in the density and compasition
ofthe vewelition on the slopes of diferent aspects of
hese porges. The SW aspect carrying dense masses
Of bosthorn, L favesecery and anual plants. while
the Nib slopes have fewer phints. No comparisons
were WHE On preciprees OF diferent! aspect parallel
fo the shore, bul any such diflerences are more
liely ty relute to exposure to wind and spray than ta
differences in insolation,
Aiples vesicdda LAW SHRUAL ANT
All othe tshands except Part Island are covered
With coarse siinls, which support itn open plant
community dominated by various perennial
chenopod shrubs growing upto about Tinie height
Lvosfearieis the most widespread ofthese. with up
to 60.0 more plints per }00n in pure stands, but ait
1S Often mmiked with or replaced hy the followiie
Inive species! Aveo crassifolia, BE. lomentosa
Van tomentosa, Meireane oppositffolta, Sclevalidemi
wnittara, T difftisa aud Molosayeta diudocnenpoidles
ssp. defvenemories, Propected ground cover uf the
perennial plants rarely execeds 40% of the surkiee
esvept for Corsi The sum between the shrubs is
almost bare of wing plints in the summer This is
direelly reliled both to climatic conditions. und also
fo the chormous disturbanee of the surliee by the
achivines dl Shortaled Shearwaters. whiel) return
10 the slings aanuilly and excavate Heit burcosys ti
lule September und leave in Aprik or May With un
ayverniwe burrow density of 260/ha arid an esdniuted
Humber ol burrows On St Vrancis Island alone al 136
HOO (Rohinson eral $996), the annual disturbance
ofthe sallbush community, their Favoured habitat. is
considerable, Shearwater hurrowine aerivity a thus
wT extremely import feature determining the
Strivnuire and compostion OF te saltbush and
simphire verehition on all the les oF St Prangisy
both because of the physical distirbanee of the
habitat and-alse becuse of the eutrophication ol the
siinds with ficees. leuthers, egy shells and deud
birds.
The saltbush communities ure invaded by a
number of introduced spevies. uf which Atpiean
Boxtharn (1. ferdem sini) and Conimen leeplint
(AL oristalmiin) are (he most averessive, beni
fould on all crsht ists. AL semicempoyiiune &
mMergeeuy, and C2 irivinion ssp laden are aise
frequeu
Meriicrapet appesitifolia LOW SHREBL ASD
Strandlines above the small shingle beaches. und
sal spray-swept granite and Karst suplaces carry st
smal range oF species adapted ia sueh situadions
including oo suniphares and AL uppositifoti,
Praukeiis sessilis, DL ceassifaltinn sap. clavelletua,
Wilvertie humilis, Sporobolus vireinivus, Co rossi
and Sumelay myers. Beoutise the basement rorvks
ae nowhere exposed far from othe shore, ib is
Impossible to define yny caleifiee fora ii the
ishinds. independently of these maritimeadiapled
species, All the above species were seen an bork
limestone and granite siifsces, This community
normally oveues as a narrow band Mroging the estana
plateaus and was only extensive enough ti be
mapped on St Francis and Benelon hands.
Heloyarcia halvenemoides Low Niky Onis
SHRCHL AND
Accumulations of deep sand i depressions on the
pluteaux of the ishinds are venerally finer textured
thin the coarser und betiersoried sands, which
support saltbush communines. Vhese finer sands
cury simphire vegetation that is often deeply
burrowed by mutlonbirds. 7h hedocweneides ssp.
halecremoides anil), paneciflora vin eariense wre
the most conspicuous plants in these depressions,
Ils A.C. ROBINSON, PD, CANTY, NUM, WACE & R.M, BARKER
Many of the native forbs, succulents and shrubs
inhabiting the saltbush communities also grow vith)
the sumphires, bul the native and alien grasses of the
saltbush are less evident. There is no sharp fMoristic
division between the saltbush and samphire
vommunities and the smaller areas of samphire are
mapped as a part of the more extensive 4, vesicaria
Low Open Shrubland. The introduced iceplant and
boxthorn are present in both, although other
introduced species are less conspicuous amongst the
sumphires. Boxthorn, in particular forms gigantic
impenetrable thickets up to 3 m or more in height on
the margins between the samphire communities and
the deeper (but presumably less saline) sands,
At the foot of the limestone cliffs and precipices,
on the basement rocks, is a line of soaks and springs,
whieh in some places on St Francis Islind were
dummed to preserve lresh water for stock when the
island was inhabited. Where such lreshwater
emerges ubove the spray zone, the resulting sundy
soaks carry u dense but tl-assorted yexetation of
buth native anid introduced plants, of which the most
conspicuous larger species are boxthorn, Av,
insulare, H, halacuemoides ssp. halocnemoides and
§ craxsifolia, Many herbs grew in this situation (at
least in spring and summer) as compared to the drier
habiluls elsewhere. Among those species collected
only or mainly in cliff-base soaks on St Francis, Doe
and = Fenelon Islands = were: Sarcneornia
quingueflova, — Spergularia rubra. Bulbine
semibarhata, Trielochin mucrenatum, Triglachin
centracarpumn, — Lepidium — foliasum, — Apium
prosteauim and Hymenolobus procumbens, A
thorough search of these constantly dump sands may
reveal more species, especially during the early
Disphyme crassifolinm VERBLAND
This vegetation community occurs as a mat on the
most exposed edges of all the islunds, hanging over
the junction between the calearenite capping und the
basement rocks or growing in cracks in the
basement, His the only community to be found on
Ilurt Island. [merges into the WL oppesitifolia Low
Open Shrubland and there were no areas extensive
enough to map on the Isles of St Francis.
Floristic Analysis
The dendrogram produced from the PATN
analysis wits cutat the eight group level, and the
floristig composition of cach group and its
distribution throughout the ishind group is given
below:
Croup |
“se
spring. The vegetation of these cliff-base suaks
tends to merge with that of the rock and shingle
strandlines where the salt spray or storm wives % is
reach the base of the dune limestone.
Tanith 3. a sanmiary af Flovistic Fegetation Group Ton the isles of St Franets.
Number sites in group 25
‘Tolul species in group 22
Avertve bo, species at siles 6.1
SPECILS Wo freq req (O-Lpk spin sites Ap eps
Disphymuerassifalion ssp. clavellam 92 33 1,52 12k 8
Meireane uppositifatia 84 21 1.04 10 7
Threlkeldia ditfiuwe S4 2] \.77 106 K
Franken sessilis 04 16 2.1] 72 7
Heiples vesivania Bil) 1) -(), 54 304 &
Sumialus repens 36 9 3.65 }4 5
Halosarcia haloenemuides: ssp. haloenenimicdes 36 ) 1.07 6) “y
Prankenta paucifiorg var, fruticntosa 32 8 2.20 35 6
Purntaderris gi Hlose ssp, paratte 24 6 3.04 \7 4
Hevirinaia ceaniplert 20 5 1.06 34 5
Loawreneia squtenmettes 20 5 O75 a 6
Sclenilaena unifiera M 5 -0,36 110 iN
Viuporik iivulare \2 3 0.75 24 ty
FLORA & VEGETATION OF ST FRANCIS [SLES
Group 2
a
a
Group 3
TABLD 4. A summary of Floristic Vegetation Group 2 on the Isles of St Francis,
114
Number sites in group 37
Total species in group 22
5
Average no. species itt sites 4
SPECIES ™ Treg freq (O-EVE sp in sites sp in grps
Atriplex vesicaria 9S 36 0,23 304 8
Disphyvma crassifoliun ssp. clavellatum 92 35 1.84 128 8
Halosarcia halocnemoides ssp. halocnemoiiles 73 28 3.77 ol 6
Maireana oppositifolia 6s 26 1.70 100 7
Carpobrotus rossi 57 22 O.84 124 x
Sclerolaena uniflora 24 10 -0.06 110 &
Frankenia sessilis 16 7 0.01 72 7
Enchylaena tomentosa var, tomentosa 19 7 -0.56 167 7
Api prostvatian ssp. prostratum var. prostraium 4 6 5,92 9 4+
Mesembryanthemum erystallinum Il 5 0.30 40 6
Threlkeldia diffusa Il 4 -0.61 106 8
Table 5S. ft sammary of Floristic Vegetation Group 3 on the Isles of St Francis.
Number sites in group 11
lotal species in group 27
Average no, species at sites 8.3
SPECIES “wo freq freq (O-E)/E sp in sites sp in grps
Mvoporun insulare 82 10 8.05 24 6
Disphyma erassifolium ssp. clavellatum 82 10 0.70 128 8
Euchyvlacna tomentosa var. tomentosa 7B 9 0.17 167 7
Frankenia pauciflora var. fruticulosa 64 8 3.97 35 6
Rhagodia caundolleana ssp. candolleana 45 6 0.23 106 7
Atriplex vesicaria 4s 6 -0,57 304 8
Hualosarcia halocnemoides ssp. halocnembides 36 5 0.78 61 @
Sclerolacna uniflora 27 4 -0,21 110 8
Carpobrotis rossi 27 4 -0.30 124 8
Lyeium ferocissinuin 27 4 -0,44 156 7
Lencophyta brownti 27 3 6.24 9 3
Lawrencia squamata 27 3 0.63 40 6
Frankenia sessilis 27 3 -0.09 72 7
Maireana oppositifolia 27 3 “0.35 LOO 7
Threlkeldia diffusa 27 3 0,39 106 s
Rhagodia crassifolia 18 2 6,24 6 5
Samolus repens Is 2 1,29 19 5
Tetragonia linplexicoma Is 2 0.45 30 4
Mesembryanthemun crystallinium Is 2 0.09 40 6
Nitraria billardierei Is 2 -0,37 69 8
120 A_C. ROBINSON, P. D. CANTY, N. M. WACE & R. M. BARKER
Group 4 Group 5
“* 7
*
TABLE 6. 4 summary of Floristic Vegetation Group 4 on the Isles of St Francis.
Number sites in group [2
Total species in group 27
Average no. species at sites |
SPECIES % freq freq (O-EVE sp in sites sp in gps
Eremophila glabra ssp. glabra 83 10 4.28 37 6
Carpobrotus rossti 83 10 0.58 124 8
Pelargonium australe 75 9 4.4)2 35 4
Selerolaena uniflora 75 9 0.60 110 8
Olearia ramulosa 67 8 10.16 14 4+
Pomadervris paniculosa ssp. paratia. 67 8 8.19 17 3
hrankenia pauciflora var. fruticnlosa 67 8 3.46 35 6
Hestringia dampieri 58 7 3.02 34 5
fempletonia retusa 33 4 5.01 13 3
Samolus repens 32 4 3.1) 19 5
Maireana oppositifolia 33 4 -().22 100 7
Disphyma crassifolium ssp. clavellaniun 43 4 -0,39 128 8
Correa backhousiana var. coriqcea 25 3 4.33 Il 4
Atriplex vesicaria 25 3 0.81 304 8
Pou poiformis 17 2 5.5] 6 2
Olearia axillaris \7 2 3.88 8 5
Lawreneia squamate \7 2, -0.02 et) 6
Vhrelkeldia diffisa 17 2 -0.63 106 8
Rnchylaena tomentosa yar, tomentosa \7 2 -0,77 107 7
TABLE 7. 4 summary of Floristic Vegetation Group 5 ont the Isles of St Francis.
Number sites in group 65
Total species in group 44
Average no. species at sites tel
SPECIES % freq freq (O-E\/E sp in sites sp in grps
Atriplex vesicaria 95 62 -0.06 304 8
Selerolaena uniflora 78 5] 1.15 110 8
Malreana oppositifolia 66 43 0.99 100 7
Frankenia sessilis 60 39 LS] 72 7
Carpobrotus rossti 58 38 0.42 124 8
Disphyma crassifoliin ssp. clavellatun 48 31 0.12 128 8
Lawrencia squamata 42 27 2.12 40 6
Pelargonium australe 34 22 1.91 35 4
Eremophila glabra ssp. glabra 34 22 1.75 37 6
Westringia dampieri 31 20) 1.72 34 5
Threlkeldia diffusa 20 13 -().43 106 8
Rhagodia candolleana ssp, candolleana 15 I -0.56 106 7
Senecio lautus 12 8 1.47 15 8
Lycium ferocissimum I 7 -0.79 156 T
FLORA & VEGETATION OF ST FRANCIS ISLES
Group 6 Group 7
oe
mI
PARLE &. A summary of lloristic Vegetation Group 6 on the Isles of St Francis.
Number sites in group 26
Total species in group 25
Average no. species at sites 6.6
SPECIES % freq freq (O-BV/E sp In sites sp in grps
Atriplex vesicaria 92 24 -0.02 304 8
Nitvaria billardierei 88 23 3.15 69 8
Threlkeldia diffusa 88 23 1.70 106 8
Rhagodia candolleana ssp. candolleana 85 22 1.58 106 7
Carpohrotus rossi 77 20 1.01 124 8
Disphymna crassifolium ssp. clavellatum 38 10 -0.03 128 8
Lycium ferocissimum 3] 5 -0.36 156 7
Zygophyllum billardierei 23 6 5.79 l 5
leqragonia implexicoma 23 6 1.49 30 4
Enchvlaena tomentosa vat. tomentosa 23 6 -0,.55 167 7
Mesembryanthemum crvstallinun 19 5 0.56 40 6
Mvoporum insulare }2 3 0,56 24 6
Angianthus tamentosus S 2 11.45 Pi) |
Leucophyta brownii 8 2 1.77 9 3
TABLE 9. A summary of Floristic Vegetation Group 7 on the Isles of St Francis.
vO £ |} )
Number sites in group 34
Total species in group 44
Average no. species at sites 6.6
SPECIES % req freq (O-EVE sp im sites sp in grps
Atriplex vesicaria 9] 32 0.04 304 8
Nitraria billardierei 8S 31 3.43 69 8
Enchvlaena tomentosa var, tomentosa 71 25 0.48 167 7
Lyeium ferocissimum 65 23 0.45 156 7
Rhagodia candolleana ssp. eandolleana 33 19 0.77 106 7
Halosarcia halocnemoides ssp. halocnemoides 38 13 1.10 6l 6
Mesembryanthemum crystallinum 32 ia 1.71 40 6
Disphyma crassifolium ssp. clavellanim 21 & -0,38 128 8
Threlkeldia cliffusa 15 5 -0,54 106 8
Leucophyta brownii 9 4 3.38 9 3
Frankenia sessilis 12 4 -0.45 72 7
Sonchus oleraceus 6 3 3.93 6 2
Tetragonia implexicoma 9 3 -0.01 30 4
122 A.C. ROBINSON, PD. CANTY, N. M. WACL & R. M. BARKER
Groups
‘The floristic groups cannot all be direetly related
to the structural vegetation communities shown on
the vegetation mapping, and described above but a
close relationship exists for floristic groups 2. 5, 6.7
and 8 These relationships together with a
comparison with the coastal mainland floristic
groups of Opperman (1999) are shown in ‘Table 11,
Vegetation change over time
The first and most recent photographs at seven of
ihe eight photopoints established across the Isles of
St Francis are shown in Figs 5, 6, Photopoint C92/7
was only established in 1996 and has not been
included.
The Masillon [sland photopoint (Figs 4a, b) shows
the expansion of African Boxthorn (L. ferocissimum)
over 31 years. The boxthorn are the lighter coloured
bushes on the distant edye of the island. There has
also been some increase in the size of the bushes of
H. helocnemoides ssp. halocnemoides (dark bushes
in the middle ground) and the V. hillavedierei (bushes
in foreground). This is the only photopoini of the
TARLE LO. A seemmary of Ploristic Vegetation Group 8 on the Isles of St Francis.
Nutmber sites in group
Total species in group
Averaue no, species at sites
SPECIES
Aliviploy vesicarta
Enehyloena tonicitosd var, tomen(osa
Leeciuan ferocissimum
Khergodia candallvana ssp, condollearna
Vinelkeledier diffusa
Dianella hrevicantis
Nt herlaeha Witiflara
Carpobintis raxstt
Torragonia impleviconu
Mesembrvanihemium ervstaltiniar
Trivdia tevitans
[29
47
5.7
Sy freq freq (O-EWE spin sites sp in geps
100 13] 0.28 304 S
x7 114 1.02 167 7
45 12 1.13 156 7
44 44 0.23 LO 7
27 35 -0),02 106 x
21 29 1.87 30) 2
2] 28 -0,25 110 S
22 28 -,33 24 ik
\4 19 OLNK 30) 4
12 16 0.19 40 6
1] is} [78 lo 2:
TABLE U1. 4 compurisan between siructiral and floristic classifications of the vegetation of the Isles of St Francis and the
ISLES OF ST PRANCIS
Vepetation mapping group
(Robinson ef af, 1996)
Vegetation mapping group
(this pauper)
Oleavia axillaris
Vall Open shrubland
Lyeium ferocissiniin
Tall Open shrubland
Qlearia rannifosa Open Heath
Natveria hillardieres
Low Shrubland
Hestringia dumpicri
Low Shrubland
Calocephalus beownii
Low Open Shrubland
Atripler paludase
Chenopodioid Shrubland
Maireana appositifolia
Chenopodior Shrubland
Halosarets halocnemvides
Chenopodioid shrubland
Disphyma craysifolium Herbland
Floristi¢ Group
(this paper)
MAINLAND COAST
Flonstic Group
(Opperman 1999)
Olearia axillaris
Tall Open Shrubland
Lyrenim ferocissinum
Tall Open Shrublane
Olearia ramulosa
Low Shrubland
Nitraric: billareieres
Sheubland
Westringia dampieri
Low Shrubland
Lencophyta browsll
Low Shrubland
Atriplex vesicaria
Low Shrubland
Maireana oppositifalia
Low Shrubland
HMalosarcia halocnemoides
Low Very Open Shrubland
Disphvma crasyifolnmm Herbland
Part4
Part 7,8
Olearia axillaris:
Tetragzonia implexicainta
Shrublands (p 166)
Purt 4
6 Nitraria hillardiere’
Shrublands (p 153)
Part 4
7 Lencopliyta browitl
Low shrublands (p 107)
8 Atriplex vesicuria ssp.
Low shrublands (p 47}
5 Maireana appositifolia
Low shrublands (p 101)
2
1.3
PLORA & VEGETATION OF ST FRANCIS ISLES 123
Vig. 5. Photographic Monitoring Points in the Isles of St Francis Conservation Park. Masillon Island (C92/1) A 1971, B
2002; Fenelon Island (C92/8) C 1988, D 2002: St Francis Island (C92/4) E 1971, F 1986, G 1996, 11 2002.
124 A.C. ROBINSON, P..D, CANTY, N. M. WACK & R-M. BARKER
Fie. 6 Photographic Monitoring Pomts in the Isles of St Francis Conservation Park. Si Franeis Island (C92/5) A 1982, B
2002; (C92/2) © 1982, D 2002; (92/3) 81971, F 2002: (C92/6) G 1988, H 2002,
FLORA & VEGETATION OF ST FRANCIS ISLES
series which contains a significant stan of the
introduced boxthorn and therefore must be used to
judge the potential rate of expansion on the much
more extensive stands on St Francis Island, Over the
Si-year period it appears to have approximately
doubled its cover.
The Fenelon Island photopoint (Pigs Se, d) was
established in 1988 to monitor part of the stand of
wind-pruned £. yelatenvix., Although difficult) to
distinguish in these black and white photographs. (he
mallee extending in from the right hand edge has
expanded by approximately one third over the [4
years of this sequenee, The other predominant
shrubs, a. vesicaria and Mo apposirifolia have
somewhat reduced canopies while the shrub of I
dempieri in the lower left corner has died.
The sequenee of photographs of St Francis [sland
(Migs 3e, fg, h) from just below the lehthouse
looking NW illustrate the changes ever 31 years
most vraphieally. This area had been completely
cleared and sown to crops of barley during the
settlement of the island. whieh ended in 1939. When
125
first photographed in [97] the foreground of this
photograph was sull predominantly introduced
Mediterranean @rasses such as Avene spp. Prominent
pioneer plants shown in the 1986 image include
Dianella brevicaulis, To implexicomea. Lyeiun
australe and A. vesicaria. Between 1996 and 2002,
some of the shrubs characteristic of the MWestringia
dampieri Low Shrubland are becoming prominent
including AL insulare, To retusa, & deserti and P.
serpllifolia var. serpvilifolia. Photopoint C92/5
looking S from the St Francis [sland lighthouse
(Figs 6a, b) shows the significant expansion of both
T irritans and C. hackhousiana var. coriecea in this
same community over the Jast 20 years.The
remaining photopoint comparisons (Figs Gc, dee. f,
g,h)all show triplex vesfearia Low Shrubland with
patches and individual bushes of boxthorn. The
general impression ts that the «L veticarier plants are
thinning out. In the 31-year comparison shown in
Figs 6e. f the 4. vesieari has been almost
completely replaced with Dissocurpus hiflorus var.
hiflorus and E. tomentosa var. tonentose, The
PABLE 12. A comperison af the results of the anelysis of the fon’ vegetation transects across the abaudaned air sirip on St
Francis istancl,
Species Transect Frequency “acover
lriplex vesicurla | B 14.3
Dissocarpey biflorus | 76 25.3
Enohvlacna taprentasa var, tomcatesc I 12 4
Lvcinan feraciss inicer | 4 1,3
Vesembryonthenumn crystallin | 10 334
Thevtkeldia ditftise | 3 43
LITTER l 271 O03
BARE GROUND | 29 QT
liviplon vesivarte a 53 17,6
Dissacarpus. bifloris 2 4) 13,3
Juels tiene tomentosa var lourenoser 2 39 13
Lavina ferecissimunt y 5 1.6
Mesembrventhenian ovpyradiineanr 2 13 4.4
Rhawoelian cvassifatia 2 2 (6
Throthetche diffusa a 2 0.6
LETTER 2 26h 88,7
BARE GROL ND 2 34 11.3
Hripley vesicaria 3 32 10.6
Dissecurpus biflorus 3 27 0)
Letclty fereita tomentose vit, Teninertanit 3 35 1G
Hatusaride halocnemmaides ssp. tetlucrentaeles 3 5 16
Lociun feracisyinuan 3 7 73
Veseaibryaathennio cepstalliian 3 24 76
Rhawodia Crassitaticr 3 5 1.6
Threlholdica liffise 3 4 2
LEEPER 3 254 KA?
BARE GROUND 3 +6 {a3
liriples vestearia 4 17 5.6
Disvocuepiis bifloris 4 4A L.6
(iediplarenar Wmeosa Vilt, (AMON sa + aN 193
Loeviin feroeissinminn 4 2| 7
Mesenrbrvanthenninn crustal 4 oly 32
Nitarkd billatdtertl 4 6 2
Kheientiar crasvifalica 4 28 o3
Thiretheleticn diffusa 4 23 TH
LITTER + 331 7h
BARE GROUND + ay 4
126
TARLI
siripeon St Francis Istaiel.
Tromsect = Total frequeney = Total “scover Areal cover
| ISS 52.6 AKT
2 154 $1.3 45
3 11 7 423
4 224 T4.6 65
A.C. ROBINSON, P.D, CANTY. N, M. WACE & R. M. BARKER
13. Leomparisen of the combined results of the analysis of the four vegetation runseeis across the abandoned air
Cover diversity Cover evenness Cover dominance
1.38 O77 6.33
1.50 0.77 6.49
1.83 0.58 709
LAO ONT 446
boxthorns around the old house have approximately
doubled as indicated by the same comparison from
Masillon Island (see above).
A companson of the four transeets run across the
abandoned airstrip are shown in Tables 12, 13, The
airstrip crosses a number of vegetation communities
in addition to the transects across the airstrip, which
measure recovery from the original airstrip
clearance. The type of vegetation sampled. at least
along Transect 1, is shown in Figs Se, f 2, h.
‘Transects 1-3 have very similar species composition
and species cover while the overall proportion of
litter and bare round is also comparable, Transeet
four in the dune systems at the extreme southern end
of the air strip hus very different species cover, lower
{otal litter and greater bare ground.
The analysis between the airstrip and the eastern
and western uncleared edges was therefore confined
to transeets 1-3 (Tables 14, 15), Perennial plant
species diversity is still lower on the regenerating
airstrip (7) compared with the uncleared fringes (9.
8). ol. vesiceria is lower in both frequency and cover
on the airsirip. The airstrip has a higher litter cover
and lower percentage of bare ground reflecting the
predominant cover of introduced dead annual grasses
that are not able to establish as readily in the more
intact [ringing vegetation. The lower level of the
bare-ground colonising AM. ervsta/linim can also be
explained by this litter cover on the regenerating
airstrip whereas in the fringing vegeition the dense
population of Short-tailed Shearwiaters which arrive
annually to excavate their nesting burrows produce
large areas of bare disturbed ground for MM.
crystallinin to become established on,
Discussion
The 128 plant taxa now recorded from the Isles of
Table [4 4 comparison of the resiilts of the ciialvsts Comparing uneleared vegetation UW ane E) with vegettion
regenerating on the formerly cleared airstrip (C) on St Francis Istanel.
Species
Aitiplex vesicaria
Dissocarpuy biflrris
Enchylacna tomeniasa yar. tomentosa
Hilusarcia hilocnemoides ssp, halocnemoides
Lvcinin ferocissiniian
Mescnibrvanthennan crystallinum
Nirvavia billaveieres
Rhosoilia crassifolia
Threthetelics liffise
LITTER
BARE GROUND
Airiplex vesicarta
Disyocurpus hiflerus
Enohvluena tomentosa vat. foiieniasd
Lycium fercissinani
Mesenibeveanthemun ervstalliniunt
Halosarcia halocnenioides ssp. heilocnemmeieles
Threlkeletio ciffusin
LITTER
BARE GROUND
Uripler vesleauria
Dissocarpus hiflorus
Mrehvlaena tomentose var, fenteditosed
Lycian ferocissimnun
Mesembrvantihanmit cevstallianm
Nitrarta hilkadlerei
Rhagectia crassifolia
Thretkeldia iffiisa
LITTER
BARE GROUND
Transect Frequency “acover
W 31 10.3
Ww 3] 10.4
W 36 12
W | 1.3
W 3 |
W 28 W3
W 2 0.6
Ww 2 0.0
Ww 12 4
Ww 248 82,7
Ww £2, 173
c 27 9
C 35 1h3
Cc 3) 10)
C 2 0.6
Cc l 3
C | 03
{: 5 1.6
c JAO 933
Cc 20 67
be i] a
I 56 18.6
I 3) 6.6
r 4 13
| \7 56
! ] 03
| 5 1.6
L 6 2
E 203 N7.7
E a7 12.3
FLORA MG VEGETATION’ OF SP PRABCIS ISLETS [22
PAKLE IS. of compeitivaiopidlie cambio rests vf dheanalesis conproring unctenivel voaeration (He cred BY winks peLredsiin
Pewee an tte finterty Cieeneed aie stein fo) on Se Preneds dstoaund.
Irinsee) Total Hreyueney Total “aeoyer
Areal Gye
Cover dis ursity Cover dhehiiess Cayer dominance
W 1A) aI 15
C {23 Ais Wa
I: iis SY 5 Mi?
St Franets (fable 2) cam be compured with a listol
386 lava recorded trom all islands (excludine
Kangaroo Ishind) around the Suuth Australian coast
(Robinson ef af 1996, Appendix A), Many aire
littora| species such ay Mo vapositifulie, \
fillardionn DY crassifalinn ssp clavedlaruae eve
Which are common to many ishinds, but some of the
specits. purhvularly those ussociated with ae
Wesiinia danger, Low Shrubkinds on sheet
limestone. such as 7. revasin ( oswetdelii, |
cupulavix, To trringis, De viscuse ssp. sprieletea, 2
desert. M. lanecalata, ©. refleve var corte iid [
Acnoephale ssp. dierocephula are meh more
restricted, The fist also contains 29 introduecd
species bul 1S of these are only found on Si Prineis
Island where the Vveyctation has heen huhly
modified by tts-awricultutal history.
Nic Tistorice colleetions from Flinder’s 1802
lunding on St Prancis Island are of particular mterest.
While Most are soll common on the isha.
Sarasin “iniiide ssp. australe has wot been
eollectod subsequently anid uppeurs te now be
extincl, Uois avery distinetive plant and, with the
imnount of plant collection that hits nuw tiken place
(Table 1), it is untikely to have been overlooked
althouwh if offer oceirs as isolated clumps
assochited willl rocky substrates. His lenewa tu
poison cattle, Sheep and horses (Cunnigham es ed
M992). and at as possible that any phints were
dehiberntely eradicated during (he — pustoral
vecupalion of the island. The seeond plant ol
purbicular interest is Selsale kali, whieh isu
polymorphic species usually treated as an
introduetion in South Australia, The collection oF yf
by Robert Brown tron St Cranes (sland in X02
Sugsests hat il should he considered ay native
species, Brown distingursted tis Australiay
collection from (rue $. fe/i by giving it the name &
ausivale. but the speeies is in need of worldwide
review for an understanding: of its relationships,
The Marista vewetition atoups developed tor the
Isles OF St Franets can be mapped lo some extent
Irom) aerial pholowraphy, which largely relates to
yexelalion structure and ihe relavionship setween
ihese wo forms of veuetttion elussifeatian is
discussed abuve. The Moristie analysis results
however can alsa be compared with the auilysis 0!
Opperman (1999) who ayalysed 845° cyuivalen
vepetation quadmits collected alone the entire
Mek coast oF Soul Australi. This compurisen
LSS WO aT
13S od S20
1,53 74 5,2
is shown in lable Tl. With the exception of the
Hosein dampen Low Shrublagds. the maritime
Vesehiniol) cogimunities found om the Isles a! $1
Francis are sill common and widespread on Souths
Australia’s coast anil offshore islands.
Isunih Clonservition Parks provide nataral
faboritory to study ehanees in vewefation
communities over time wellmul the NIA
confounding influences such as weeds and introduced
herbivores su Widespread on the South Australian
imainhind. There have heen a series af such studies on
some of the jstamds of (he investigator Group.
particulirly on Pearsan [sland (Symon 1971, Patchen
1982. Robmson ex af 1996). The islands of the
Investiator Croup are very different beth
Beologically and botareslly fromm the tsles of St
Praneis. and Pearson Island has never been grazed. so
that detailed conrpurisons between these studies and
(he present data are notaippropriate, St Francis island
however provides an opportunily lo examine
Verelalion recovery onan island extunsively modified
by the effects of past vleanmy, grazing und fire. The
Transeets aeross the ubandoned pirsteip abd the
photographie comparisons provided here provide
some iit madicahon of the lypes al’ vegetation
changes that hive occurred over the last 30 years or
so. Recovery of mative specs and communities has
hegun. but nich longer studies will be needed to
follow these changes (hrough to same form of nes
stability th these altered plant communities. The
vonlinuing Slow expansion OF the introcdtwed boxthory
provides # srznificint mandwenent challenge for the
flue OF Ths Fapertait Conservation Park,
Ackoowledgements
The South Australian Research aid Development
Institute committed a significant anointed fundies
lo the expedition through the prayision ol ther
Research Vessels Neorin and Odliysen alan with
lechnical support stafh and erew The South
Austaligo Department for Piviraument and
Hlerikige supported the terrésirial prognim. The
University of Adeloide provided their yessel
Thalassia wd the Australi Geographic Soaety
contributed linanesal support for the expedition.
Particular thanks go fo Neil Chigwidden and tis
vrew on Veer, who transported personnel and our
fo St Prangis Island and Lerricel us to all dhe: rs tiinds: in
(he arehipehigo where we neaded to work
126 A, C. ROBINSON, BD. CANTY, N.M. WACE & R, M, BARKER
Thanks also to Dr Peter Lang for assistance with
resolving difficulties with plant taxonomy through
comparison of herbarium specimens in the South
Australian Plant Biodiversity Centre,
Aceess to databases of the Robert Brown plant
collections were provided by the Western Australian
Herbarium and the Natural History Museum,
London.
References
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Reference Manual” (CSIRO Division of Wildlite &
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= i (1994b) “PATN, Pattern Analysis Package.
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— (1994e) “PATN, Pattern Analysis Package.
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Brows, R. (L810) “Prodromus florae Novae Hollandiae et
insulae Van-Diemen ” Vol. 1 (J Johnson & Co: London).
Boursipge, N. oP (1958) “An Index to the Mierofilm of
Robert Brown's Botanical Descriptions (Manuscript) of
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CaNpoLie br, A, P, (V847) Hemistenre lechenaulii In Rew.
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Cark, S. GM. & Carr, D. J. (1976) Identification oF a
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Baudin. commander-in-chief of the corvettes Géugraphe
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CUNNINGHAM. G. M_, MULHAM. WOE. Mintuorper, PL. &
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offshore islands of the Investigator Group and Whidbey
Isles, Great Australian Bight, Trams, Ro Soe. S, tust 106,
34-61),
Fospers, M. (1814) al vaveee ta Terra Austrediy, 2 vols
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assessing cover. structure and heterogeneity me plant
communes, 2. Rangeland Ment 42, 79-51,
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Vewelation Survey Using The Biological Survey of
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(Geographic Analysis and Research Uni, Information
and Data Analysis Beanch, Department of Housing and
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LaAvaripes, M. (1997) A Revision of 7riedia including
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Australian Coastal Dune and Chilop Vegetation, 19%-
LOO8™, (Coast and Marine Section, bnvironment
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Peron, FP. & FPrrverser, L. (1807-16) “Voyage de
découvertes aux terres australes.., sur les corveues le
Géavraphe, le Naturaliste., VROV-TS04", 2 vols and
atlas (Paris: De Miinprimerie impénale)
Rominsox, A. CANty, P, Moonny, 2. & Rupbuck. P
(1996) “South Australia’s OffShore Islands”. Australian
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Symon, D. F. (1971) Pearson tsland Expedition 1969. 3:
Contributions to the Land Flora, Trews, R, Soe. So Aust
95, 132-146.
Varianer. T, G.. Moorr. D, T. & Groves, LE. W. (2007)
“Nature’s Investigator: the diary of Robert Brown in
Australia. LSO1-1805. (Australian Biological Resources
Study. Canberra, }
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF
ST FRANCIS, SOUTH AUSTRALIA: VERTEBRATE FAUNA
By A. C. Ropinson*, D. M. ARMSTRONG, G. P. ARMSTRONG, B. DALZELLS,
P. B. CanTy**, M. MCDOWELLT} & L-M. HALL?
Summary
Robinson, A. C., Armstrong, D. M. Armstrong, G,. Dalzell, B., Canty, P. B.,
McDowell, M. & Hall, L-M. (2003) The Encounter 2002 Expedition to the Isles of St
Francis Conservation Park, South Australia: Vertebrate Fauna. Trans. R. Soc. S. Aust.
127(2), 129-139, 28 November, 2003.
The vertebrate fauna of the Isles of St. Francis includes eight native and one
introduced mammal, thirty native and one introduced bird and nineteen native
reptiles. The terrestrial vertebrate ecosystem 1s dependent on the annual nesting of
thousands of Short-tailed Shearwaters. A population of Carpet Pythons at a density of
1.5 per hectare occurs on St. Francis Island and data from a mark-recapture study
between 1988 and 2002 is presented. Counts of both Australian Sea-lion and New
Zealand Fur-seal populations indicate a previously unrecorded breeding colony of the
former on Masillon Island and a possible population expansion in the latter since the
first counts in the early 1980’s.
Key Words: Isles of St Francis, vertebrates, animal plant species, pythons, seals,
shearwaters, South Australia.
Transactions af tie Roel Suc fen ap S eh | WS), 127 (2), LE
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA: VERTEBRATE FAUNA.
by A.C, Ropinsos”. D. M. ARMSTRONG. G. P ARMSTRONG , BL DALZELL PL B.CANTS
M. Mcepoworn & L-M. Hat”
Simmary
ROWNsaN A.C AIMISTHONG, DOM ARMS THOSG, GL DALZIEL EB Canty POR Mepowilih Mod Thy b-
M, (2003) Pho bneounter 2002 Txpedlion to the Isles of St Prancis Conservation Mirk, South Australian
Vertebrate Fannin, Zhan, Ro Seo 8) tas 12702), 129-13 AX November, 2003,
Nhe yertehraty fauna of the Isles a) St Proneds (elites cieht ative gndhone intreduced manomal (hiery mative
und ong intradueed bird id Hineteen native reptiles. The terrestrig) wertchrate ecosystem is dependent on the
ann ial Nesting ab thousands of Shoretotled Shearwater. A pupulatonnal Carper Pythons aba densely of bs per
Howlin oeeurs oo SEP rancis behind and data froma niark-reeapture study between [98s aid 2002 1s presented,
Couns of bod Australian Sea-tion umd New Zeakind Mirseal populations indicate a previnusly unrecorded
heeding colony of the former on Masillid shine) sind a possible population expansion in the hitler sinee the first
KOUTTIS TN the wirly LYaO's,
Key WokDs: Isles of ST Brunets, veriebrules, unimul plint species, pylons. seals. sheurwalers, Saul Australia,
Introduction
Basic studies of the vertebeare Kaada ofthe isles of
St bruncis dite back lo the visits of scientists
accompanying the voyage of Matthew Flinders in
bebruwry 1802 (Tuble 1). These barven islands at the
height of simmer did pot impress Flinders’ party, but
hey were eratelil for the supply of easily captured
fresh meal fram the large breeding colonies of Short-
tailed Shearwaters or Mutton Birds present at viet
tine of year, Flinders (in Lewis 1919) deseribed his
visth aus follows:
ror several devs before unvharing here wo
vbserved larae Hoeks of saaty peels [Shart-taileel
Shearwarers |) ane? found the surface of the isleanel,
whee Hus sanele and produced small shrahs, to he
Aull ef their barroves, Penguins Net their burrows
nearer The wetor sieley A osetedl species of hangenae
[probably the Brosietailed Bettone), was also
found, Me Braye ciel his party returned front the
eantern intind bringing four koueearves of a different
species ta aay seen before. Their size wets Mat
superior lo that of a ere and iher wer miserntbly
dan, and tnfected with insects. Ue sete piceredine
Y aativersity Sumiyy & MONTE, Seietice & Conser ylion
Direc liitle. Departiient Her PA viriment ak Pherilapes FrPGL Hos
HH, ADELAIDE, SA S001
‘Natori Parks & Willlife SAL ¢
SA 567)
ebay Creat WOODFORDE, 34 S072,
“ Sutional Parks & Wine SA PO Bax 360 CEDUNA SA
aa
* Brodliverstiy Survey & Moniuriie Seivaee & Consergtin
Directorate. Deputtiieat der Lay Thouiredat de Hermie, IPO) Bes
WAT ADELAIDE, SA sna]
The Plriders (liversdty al Sami Adatielia HO} tks en
ADELA SA StH.
Proronmen: Mrotconon Anmbonmy CPO thee 2607, ADELAIDE,
SOA SHOT,
Most Otiee PORE RANI
year the iver heed heen frequented ine [Cape
Barren! Gees, bar atthe dire, he veeetation heii
ctlniast burnt up tev scem to futve qinitted i fram
want of foul The heat wer, indecd, such us ta mike
Walking a sreor fate, ane this wey augurenteed ine
frequently sinking inte bird hales and falling upon the
sand. The thermometer stoad ut YS dee. In the sheule,~
Biologists dil nol visit the ishinds again until the
early 20th century (Woud-lones 1922. 1923. 1924)
Vereo 1935) (Table 1), This was followed hy u visit
by herpetologist Erie Worrell in the [960s (Worrell
1963), The Royal Sverety of South Austraha
expedition yisited the islands io January 1971
(Robinson and Smyth 1976) and wis was followed
by uo series of visits by South Australian National
7urks and Wildlife Service (NPWSA) biologists
allempling, ultimately unstweesstally, ro res
intvoduce the Brush-tnled Belong (Beriangeia
penicillata) Wo St Francis ts. (Delroy er a/, 1986), ALI
these observations ty the mid 1990s) were
consolidated into a hook entitled “South Australia’s
Oftshore Islands’ (Robinson ef af, 1990). Since then
there have been a series of trips to Si Praneis fs. hy
shill of NPWSA, fo conduct an eeologteul study al
the population of the Carpet Python (Morelia xpitase
imbricand). This program was initiited by the work
of Sehwiner ev ad, (M988) who compared St Princis
Is Carpet Pythons with mainiand populations im an
effort to develop a method for identifying them when
they Hepally entered the pet trade. Although they
developed diagnostic = measurements. they
recommended that the best method for identifying St
Frateis Is, pvthobs would be the permanent murking
of the wild population, The development of
injectable pnerochips hus made permanent marking
possible, leading te the NPWSA projeet,
140 AC, ROBINSON, DM. ARMSTRONG, G. PR ARMSTRONG, B, DALZIEL, 0 BCANTY M, MCDOWELL & LeM, HALL
Manito |, Maite re the Isles of St Francis by biologists who made observations of the vertebrate ferme.
Date Projram
Feb |802 Matthew Flinders and botanist Robert Brown
(923 Vrederick Wood-Jones yisil (Vereo 1935)
1900's Lrie Worrell visit (Worrell 1963)
S-1WOTI
10 LO 972 Nigel Wace Phint Bioweopraphy
January 973 Ceduna High School stall
June [O75 Nigel Wace
207 OSU
AVS ON]
IK-4 1 / POR?
|R-22/4) (987
Potential lighthouse site inspection
Hetlong Re-introduction
Riological Survey (Robinson ef al, 1996)
3-9/4) 1952
LR-1 9/4/1983
JT-29/F/ 98S
Janiuiry [Yse
9-( 4/2 ORO
Belong Re-introduehon
Python ecolowy (Schwaner ef ul 18k)
Bellon Reeintroduchon
Suiling vessel Zebu" expedition
(Sehwaner ef uf, [OR8)
Bellong Re-introduchon
Bettons Re-introduction & pythan coolopy
Python ccolovy = Grstuse of microchips
Python ecology
Python ecology
Python ecology
Pneounter 2002 expedition
SOE) ONT
T2810 1988
PS-22/ FL L996
25-29/4/ (997
27-30 1107
3-22 4/1900
15-26) 2/2002
Royal Society of SA expedition (Robinson & Smyth 1976)
Betlong Re-introduction (Delroy ead Lose)
Bellony Reeintroduction and Python ceolouy
Transport Islands visited
Boat St Francis
Boat St francis
Boat St Francis
Boat St Princes. Dow, Vision.
Hout St brancis, ou, West,
& Iicleopicer Masillon, Penelon, Hart
Hout St Francis, Smooth,
fue. Preeline
Boul SE Franeis, Smooth, Dow,
Preeling, Musillan. Penelon
Helicopler art
Boal ST branes
Bout St Francis
Helicupter St Francis, hep. Dog,
Freeling, West. Masillon,
Fenelon
Boat St Francis
Boat St lranets
Boat St lraneis
Boat Si Hrinels. Masillon
Boat St Uraneis
Boat St braves
Raat St franels
Want St branes
Baxit SL Froneis
Boal St branes
Bout St Francis
Boat St Francis, Smooth, oe,
Masillon, Fenelon
The present expedition aimed to continue the work
on the Carpet Pythons. conduct counts ol the
Australian Sea-lion (Neuphoca cinerea) and New
Yedland = Fur-seal — (dretocephalus — forsteri)
populations, search the islands for vertebrate skeletal
remains and visit Smooth ts. the ouly ashind on the
group net previously surveyed for vertebrates, Un
addition, general observations of the fauna were
made on all the islands visited.
Materials and Methods
lotal Fertebrute Fuuna
Vertebrale collections and observations made by
biologists to the Isles of St Francis beiween 1802 and
2002 (Table 1) were consolidated to produce the
most complete lists of the vertebrate fauna of cach
ishund inthe group yet published.
Carpet Python keoloy
Prioe to the 2002 expedition, Carpel Pythons: had
been collected, measured and marked (with injected
microchips from November 1996 onwards) on St
Franets Is. on five trips between O88 and 1999
(Table 1). From 17-23 February 2002, systematic
searches were carried out for Carpet Pythons on St
Francis Is. in the mornings and afternoons of every
day. All those working in the terrestrial team
searched, hut David and Graham Armstrong put in
Ihe majority of the search effort. Once a python was
sizhted it was captured and placed ina cloth bag. The
location Was lagved with flagging tape and a GPS
Joculion recorded together with a desenption of the
habimt. Detailed results of this python ecolowy
project will be published elsewhere and will include
further description of the marking und measurements
used, Once the animal had been processed it wits
then released back at its site of capture and the
Nagwing lape was removed.
Seal Cauuts
Seal county were conducted [rom a boat eireliog
West Is. and by walking the coustor cll tops in the
case of Dox, Fenelon and Masillon Islands. For both
species, the following sex and age classes were
recorded; Bull, Sub-wdull Male, Cow. Juyemile,
Unclassified. Black Pup, Moulliny Pup, Uneliassited
Pup, Dead Pup und Total, One of us (B.D) returned
VERTEBRATE FAUNA OF ST FRANCIS ISLES
TABLE 2. Fertehrate species recorded from the Isles of St Francis Conservation Park, Taxoramy and ordering follows
Rohinson, Caspersan & Hutchinson (2000), Introduced species are marked with ai asterisk. New records from the
202 expedition are indicated with a \. Skeletal remains only are indicated with '.
= eo 3 Z J ,
S &§ oe & tb FE = 8
Scientific Name Cominon Name $ gq 4 = on = 5 = 3 S
8 8 ¢ &¢ @ = ep & &
ao ¢§ 2 fP eo eB 8S § S ®
a a SS sl
MAMMALS
PERAMELIDAE
Isoodon obesults Southern Brown Bandicoot *
POTOROIDAL;
Bettongia penicillata Brush-tailed Betlony *!
MACROPODIDAL
Macropls eugenii Tammar x!
Macropus filiginosus Western Grey Kangaroo
OTARIDAE
Arctocephalus forsteri New Zealand Fur-seal * #
Neaphoce cinerea Australian Sea-lion ¥ + * ‘a #
BOVIDAE
*Ovin aries Sheep |
MURIDAE
Rattus fuscipes Bush Rat x * +
BIRDS
PHASIANIDAE
Coturnix pectoralis Stubble Quail “
ANATIDAE
Cereopsis novaehollandiae Cape Barren Goose * ee rt
SPHENISCIDAE
Eudypnila minor Little Penguin * Oh i
PROCLLLARIDAL
Macronectes giganteus Southern Giant Petrel
Puffinus tenuiroswis Short-tailed Shearwater 7 % 5 ® *
HY DROBATIDAE
Pelagodroma marina White-faiced Storm-petrel e
PHALACROCORACIDAL
Phalacracoran JUSCescens Black-faced Cormorant *
Phalacracoray varius Pied Cormorant *
ARDEIDAL
Ardea novachollandiace White-faced Heron si eo a
Ardea sacra Reel Heron *
ACCIPITRIDAL
Haliaeetus lencogaster White-bellicd Sea-eayle ad < i
Pandion haliaetis Osprey *
FALCONIDAE
Faleo venchroides Australian Kestrel * "i
Falco peregrinus Peregrine Falcon i
RALLIDAF
Gallirallus philippensis Bull-banded Rail * ¥
SCOLOPACIDAE
Arenaria jnterpres Ruddy Turnstone * *.
Calidris alba Sanderling *
Calidris ruficollis Red-necked Stint +
HAEMATOPODIDAE
* 7 4 # * #
Hoaematapus filiginosus
Sooty Oystercatcher
{32 A.C. ROBINSON, D. M. ARMSTRONG, G. P. ARMSTRONG. B, DALZIFL, P. R.CANTY, M. MCDOWELL & L-M. HALL
2s zu Ss ow
& fs zg EP 2 EY
~~ &@ S&S EB 4% 3S & 4 ES
Scientitic Name Common Name m3 = 4 = ot = E = =
a & ee a oa = s § 8
cA yn a > &
CHARADRITDAE
Charadrius ruficapillus Red-capped Plover *
Thinovnis rubricollis Hooded Plover *
Vanellus miles Masked Lapwing . . “<= *
LARIDAT,
Learns novaehollandiac Silver Gull 7
Larus pacificus Pacific Gull * . a j * :
Sterna bergii Crested Tern 7 i
PSITTACIDAE
Neopheme petroplila Rock Parrot * ce - i
MELIPHAGIDAE
Lichenostomus virescens Singing Honeyeater : i“ 4 * ‘
CORVIDAE
Corvus coronoides Australian Raven * * * i
STURNIDAE
*Srurnus vulgaris Common Starling *
HIRUNDINIDAE
Tirundo neoxcna Welcome Swallow * i SP * ‘ *
MOTACILLIDAL
Anthus novaeseclandiae Richard's Pipit * : i Fe RW
REPTILES
AGAMIDAL
Clenophorus fionit Peninsula Dragon =
GEKKONIDAL
Nepheurus milli Thick-tailed Gecko ’ x & + +
Christinus marmoratis Marbled Gecko + it * i * * *
Heteronotia binaei Bynoe’s Gecko *
Delma butleri Spinifex Snake-lizard
slprasia striolata Lined Worm-lizard
Lialis burtonis Burton’s Legless-lizard
Pygopus lepicdopodus Common Scaly-foot =
SCINCIDAE
Cvelodomorphus melanups Spinifex Slender Bluetongue * *
Leernia vicharei Western Tree Skink oF
Evernie nultiscutata Bull Skink + * * * *
Hemiergis perontt Four-toed Earless Skink tf | * sf 4
Lerista dorsalis Southern Four-toed Slider i *
Lerista cdwardsae Mallee Slider *
Meneria erevi Dwarf Skink Ht +
Morethia obscura Mallee Snake-eye *
BOIDAL
Morelia spilote Carpet Python *
ELAPIDAE
Drysdatia mantersi Master’s Snake = * +
*
Nofechis ater
Black Tiger Snake
to conduct seal counts on Fenelon and Masillon
Islands on 24/9/2002. This 2002 data was combined
with all other available counts, These counts go back
to 1975 for sea-lions and 1982 for fur-seals.
Skeletal Remains
Sea Eagle roosts, coastal caves and other karst
features were examined for vertebrate remains on St
Francis Is. (3 days). and Masillon Is. (1 day). The
VERTEBRATE FAUNA OF ST FRANCIS ISLES
interior of St Francis Is. was investigated by walking
transects across the island. Skeletal material was
hand picked from the surface and just below, and
placed in a ziplock bag with a label that included a
site number and GPS location. Specimens were later
133
identified in a laboratory by comparison with
collections housed by the Flinders University of
South Australia and the South Australian Museum.
Previously collected material housed in the South
Australian Museum was also re-examined.
| Bare sand
kilometres
Fig. 1. The distribution of captures of Carpet Pythons captured between 1988 and 2002 across St Francis Island.
TABLE 3. St Francis Island Carpet Python Population Estimates (Lincoln-Petersen index) 1998-2002.
Sampling Date No of captures No of Recaptures — Progressive Captures — Progressive Recaptures Pop Estimate
18-22 Nov 1996 33 5 - - -
24-29 Apr 1997 30 2 63 7 S97
27-30 Nov 1997 35 3 98 10 960
20-22 Apr 1999 3 0 103 10 1060
17-23 Feb 2002 28 8 131 18 953
4. C, ROBINSON, D. M. ARMSTRONG, G. P. ARMSTRONG, B. DALZIEL, P. B.;CANTY, M. MCDOWELL & L-M, HALL
| a4
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JOU WO Burpyans qs yApE-qns
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se i §| t ¢ (0661.9 = 0661/E/T —-UOTTISe
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0c 0c (S861) GRU LLOVOL/9T —-UOTTSR YA,
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RANCIS ISLES
VERTEBRATE FAUNA OF ST I
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Results
lola! Verfebran Fala
Vhe verlebrate speeies reeerded on cach island in
Ihe Islewof St Francis Conservation Park as shown a
‘tuble 2. The fauna includes eight milive and vie
Jntvodveed mivminal, thirty outive and aie tntrodueed
bird and nineteen native reptiles.
Curpet Byte Reali
Duriim sis (rips to St Franets Is. between Yas und
2002 u loll of 170 pythons were captured, Onee
microchipping began in November 1996, 131
individual pythons were captured. OF these, 1S were
yecaptives of previously imiurked snakes (fable 3),
Phe distribution of all eaptires aeross the island: ts
shown in Pin. |
There tsa clear bias in searel effort and benee
Witber oF cuptures do the aren ob the pslemd adjavent
lu the Petrel Bay campsite. Pythons have however
been captured nil across the niage OF habitats of
the wland, bur appear to be most abundant in the
ardus Of tien vesiceria Low Sheubland
(Robinsen ef u/ 2003). In dis habitat the very high
deosity of Shorttaled Shearwater burrows also
provide numerous refuges for the snakes, Beewuse of
the hon-rundon) seareh patterns the variable search
eflor beiween tips and the long time perids
belween tips spread over 6 years. standard
quantilafive mark-relodse Tecuplure techniques
cannot be applied to this data. Appheation oll (he
[incoln-Petersen index (Blower eta. L98t) tu the
recapture data however suggests a toll populanan ol
just under TOO pythons (Ruble 4). The total
yepetited area of St Francis [s. is 670) ike se,
assuming an even spread of pythons aeross al]
vepetaled hybitats, the ishiid supports an
wpproximate density oF 1.5 pythons per heetare.
Seal Canis
Australian Sea-hows live been reearded ror
wiht stands and Cannan Reel across the Isles of Si
Francis (Table 4). Most al these represent haul our
sites for small numbers of animes, but Penclon,
West und possibly Dov Is. represent breeding: sites,
Phe nine pups reearded on Masillon bs or 24/2002
representa previuusly unrevorded breeding urea for
this Species (Gules ete. }OO4),
New Zeulind Pur-seals are found i lower panbers
across The tes af St Praneis and all records: ef dys
species ure Shown a able 3, benclon ts, was first
recorded us a dial owt sike in 2982 and daring a
survey ofall known localities for this species over
ihe 1989/90 breeding season ih was still regarded jas
a haul outsite only. ly August 2002 hallow pups
were recorded On bath Fenelon anu Masta Istaniels,
but these were fare cnoteh to live swan there
fromthe nearest Known breeding Golony on Warel bs
in the Investigalor Group,
Shileral Remains
The mayority af skeletal remains found on St
Francis Is, (Fable 2), were not located jn eliff top
vaves as expected. but were conventrated in While-
hellicd Sea-Bagle (/fefievers levengaster) roosts.
These contained numerous Litde Penguin
(Andvpidi inary, Shortelailed Shearwater
(Muffimus tennirasicis) and Cane Barren Ciguse
(Cemwopy vovgehollandiac) remuins, wy well as
Southern Brown Bandicoot (seeder abesi/usy une
reptile remanis. and the dental plates (rom at least
five species OF fish, Some of the most inlerestiig
bones however were Jound when walking, transects
across the hivher parts of St Francis Is. Among these
Waits at (bie that conipares well with those from the
Tammur Wallaby (Meorapas caged. a cereal
vertvbra that compares well with those front tte
Western Grey Kuangurog (At fifiginesas) (found near
the ol homestead) and numerous sheep (CNN aires)
remains, A complete skeleton of an Australia Sea-
lion (Neoptied cinerea) was found on a pebble
heach on the east coun! opposite a small ister known
to be a hei-out site for this species. The single day
of collecting on Masilon ds, yielded remiins of the
Bush Rat (Rata fiscipes) (recovered froma small
raptor pelled), penguins. Shont-tailed Shearwalers,
apd un Austrahan Sea tion (Table 2). In addition,
skeletal glements fram sever} species of
unidentified fish and reptiles were also recovered,
Reexamination af the skeletal material collected
on previous trips ta St Francis Is. (Rubinsain &
smyth, 1976) continmed thei Tanimar reward: bat
reveuled thal rodent specimens previously ident fied
its Black Rat (Aetus pets) were in fact Busty Rat,
However, as Rotinison and Smyth (1976) stated. 10
living Speciniens of he Bush Rat hive been recorded
on St Praneis ts. even though ih as coniimon on
Masitlon and Dog Istands,
Discussion
Total Voetebrrite Miina
he Isles of St Franelis supporta vertebrate: lune
(halos typreal of many of the relatively cndistarbed
snail islands ofl the west coastol Eyre Peninsula. St
Franvis bs. lisel? however willran area ef just ander
S00 hi supports addional speeics nor found on the
smaller ishinds, One of only (wo known populations
of the ishind form of the Sonthern Brown Bandieout
(hveadon chexilus noubews) 1 foundoon St Frances
Is. Hoappears lo occur ala mioel) lower density: than
on the Vranklin Islinds 50 km to the east (Copley: et
al TO8O. Kemper 1990: Watts 1974). Th may be
maintained at these lower densilies by predation on
VERTEBRATE FAUNA OF ST FRANCIS ISLES 137
the juveniles by the Black Tiger Snakes (Nerechis
aery and on the adults by the very large Carpet
Python population. The Franklin Islands do not have
a python population. The bandicoots have survived
the changes to the island from its past agricultural
history, Cats introduced to the island during the
agricultural occupation of St Francis Is apparently
killed the population of the Brush-tailed Betiong
(Bellongia penicillata) noted by Wood Jones (1923)
(Robinson and Smyth 1976). An attempt by NPWS.
lo re-introduce bettongs to the island in the L9S8Qs
failed and python predation on the relatively small
founding population is thought to be the most likely
explanation for this failure (Delroy et al 1986). The
Bush Rat populations on Masillon and Dog Islands
are, like the bandicoots, isolated relict populations
from a more widespread coastal population during
the Jast ice age when the islands were connected to
the mainland. The relationships of these island Bush
Rat populations to those on the Australian mainland
are discussed by Schmitt (1977, 1978).
The skeletal remains colleeted on the present
expedition and by Robinson & Smyth (1976) were
either accumulated in a sand hill blow out above
Petrel Bay or by White-bellied Sea Eagle predation.
The vast majority of sites surveyed that were suitable
for owl roasts were occupied by penguins. This,
combined with the archipelago’s distance Irom the
mainland, and the limited opportunity for nocturnal
prey, ts thought to explain the absence of nocturnal
raptor accumulations, (though accumulations
collected during the last 10 000 years may now be
under water due to sea-level rise). European farmers
bringing animals from the mainland for food were
probably responsible for the accumulation of
Tammar and Western Grey Kangaroo remains as St
Francis [s. would be too small to support a natural
pre-European population of either species. The
smallest island known to support a natural
population of Tammars in South Australia is’ the
3400 ha St Peter Is, Only Kangaroo Is, at 4430 kin?
supports Western Grey Kangaroos. No Brush-tailed
Beitong remains were found in 2002, either from the
original population or the failed re-introduction
program, This may be due to poor bone preservation
but equally, may indicate python predation on the re-
introduced population and subsequent bone
destruction by the digestion process.
The ecology of the Isles of St Francis is driven, to
a large extent, by the populations of the Short-tailed
Shearwater that breed on most islands in the group
between September and May. Population estimates
for each island are given in Robinson et al (1996),
With an estimated population of 27 000 birds on St
Francis Is. alone, this annual visit provides a massive
input of nutrients and significantly disturbs all but
the most shallow rocky soils on the island. The eggs.
chicks and adults provide a significant food resource
for the White-bellied Sea Eagles, Peregrine Falcons
(Falco peregrinus) Carpet Pythons and Black Tiger
Snakes, Carcasses are scavenged by Southern Brown
Bandicoots, Australian Ravens (Corvus coronoides)
and the Bull Skink (Egernia multiscutata). Other
important bird species include resident breeding
populations of Rock Parrots (Neophema petrophila).
and, over the winter months, a regionally significant
breeding population of approximately 50 Cape
Barren Geese (Cereapsis novaehollandiae). Because
there are fresh water springs round the cdge of St
Francis Is. that flow throughout the summer months,
a proportion of the geese remain on the islands while
others move to mainland summering areas on
southern Eyre Peninsula (Robinson ef «/ 1982), The
beach in Petrel Bay on St Francis Is. supports a small
breeding population of the Hooded Plover
(Thinornis rubricollis), a species classified as
Vulnerable in South Australia (Robinson er «/, 2000)
due to the threat of fox predation on their mainland
beach nesting sites.
It ts the reptile fauna of St Francis Is., however,
which sets the vertebrate fauna of this island group
apart. Nineteen reptile species are now known from
St Francis Is. (Table 2), Even the much larger
Kangaroo Is. only supports nineteen native terrestrial
reptile species (Robinson & Armstrong 1999), This
reptile diversity on St Francis Is. is the result of the
presence of the Wesingta dampier? Low Shrubland
plant community (Robinson et a/ 2003) that
contains significant areas of Spinifex (Trioclia
irritans). Spinitex, a plant of the more arid areas of
South Australia, is absent from Kangaroo Is. It
supports a characteristic reptile community wherever
it is found as a major component of the vegetation,
and on St Francis Is., species ftom this typical
assemblage include: the Spinifex Snake-lizard
(Delma hutleri), Burton’s Legless Lizard (Lialis
burtonis), the Common Sealy-foot (Prgopus
lepidopodus) and the Spinifex Slender Bluetongue
(Cyelodomorphus melanops). all of which are absent
from Kangaroo Is, The very significant Carpet
Python population of St Francis Is. is discussed in
more detail below.
Carpet Python Ecology
Schwaner ef al. (1988) determined the Carpet
Python population of St Francis Is. (1988) to be the
Western Australian sub-species Morelia spilota
imbricata, As such they represent the eastern limit of
this sub-species (Schwaner ef af 1988) and are a
relic ofa more widespread coastal population during
times of lower sea-level when the Isles of St Francis
were connected to the mainland during the last ice-
age (Robinson ev a/. 1996). The Carpet Python
population density on St Francis Is. is very high and
3K ACC ROBINSON, D. MOARMSTRONG. Gf ARMSTRONG, BODALZTE LG 7 DICANTY, ME. MEDOWELT A 1-M TELL
is nly possible heeause of the super-abundant
seasonal food supply available from the breeding
population of Short-tailed Shearwaters. One python
seat examined from St Franets Is. also contained
bandicoot rentins, but the relive impurkince of
birds and munmnals in the dict is unknown. The
marked population om St Francis Is. thereture
provides an imporkint future opportunity to examine
ihe population ecology on a species Hilis yery much
more difficult to study im the much Tower density
inminkind Austtalian populations.
Seal Comins
The Australian Sea-lion breeding colonies in the
Isles of SE Francis now melude Fenelon (20 pups),
West (10 pups) and Masillon (10 pups), Dog Is. muy
also produce small numbers of pups, The well
documented pupping interval of 17-18 months (Gales
chal, 1994) for this species means that peak breeding
oveurs in ditlerent seasons ih successive years, Tn
addition, peak breeding across the range of this
species trom the south-west of WA to the Pages
Islinds in Backstairs Passape, SA varies
ucoumiphically in any one breeding season, The 2002
breeding season in the Isles of St Francis wits fron
Mareh-Qetober and-so the nest breeding will be from
December 2003 to Mary 2004, te will be important lo
conduct good counts on these four islands to conficns
their importance to the overall production of this rare
species, which has the National conservation status of
‘Lower Risk, Near Threatened’ (Shaughnessy 1999)
New Zeuland Pur-seals hitve mcreased in number
across the Isles of St Francis since the first count in
I982 (fable 7). Populations of [his species
Monitored in more detail on Kangurow ts, lave been
inereasing exponentially sinee the mid 1980s wud the
trends in Table 4 also show jnereases. Ie wall he
important to determine whether (he populations on
Masillon and Fenelon Islands have yet reached wsive
when they can begin to breed during their regula
summer breeding season, Continuing inerause 1 tits
species population may affect breeding Hi the much
less productive Ausitalian Sea-lion as. fir-seuls
expand to occupy the limited breeding habitat
avilable throughout the Isles oF St Francs.
Acknowledgrients
The South Australian Resairch and Development
Tnstilute committed a significant amount af finding
to the expedition through the provision of {hei
Research Vessels Neerin and Qelvsser along with
leche support stilf und vrew. The Seath
Australian Department for Environment ind
Herittge supported the terrestrial program, (he
University of Adelaide provided their vessel
Nhelussia and the Australian Cieographic Society
contribated fipaneial support for the expeditions.
Particular thanks go lo Nick Chigwidden and his
crew on Neernt who transported personnel and gear
(oO St Francis Is, and ferried us to all the istands in the
archipelago where we needed to work.
The vertebrate researeh was carried out inder
Animal thies approval 12/2002.
People who collected, measured und marked
Carpet Pythons, prior te the 2002) expedition
included: David Armstrong, Peter Copley. Fraok Dal
Piva, Brett Dalzell, Hannah Dridan, Dale Gibbons,
Allan Holmes, David Pearson. Simon Stone. Jason
van Weenun and Perry Will.
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Wallis, BR. 1 & Keniper Co ML (has) “Bandicoot and
Hilbies” (Saney Beatty & Sans, Sydney)
Lewis 1 (919) Phe Soul Adsiratitin Coastline (ime lidingy
dehuils of Flinders Jourdath Tae dla Gees, Sar lust
Soh Brevret 20, 5-52,
lose 2 Be & War mii G, ©, (1976) Seal stuches i fault
Austrilias prowess repart for the period Apal tet to
July FOTO SL tie Ni, 52, GE- 78.
Ronco. A, OC & Saprri 6976) The vertebrite Moun ot
muyts Archipehige, South Austaa. Tims. We See 8,
hist VW V7 I- 1 Th
Drieoy, bol. & dike RB, CTOR2) The
Conservation und Mindgement ob tie Cape aren
Goose Cyreopely aevaeholiancdicn Lathan South
Austolin, Department for Bivirenent a Nettive!
Resanrcooes Sportal Publicutton 1. 1-50
VERTEBRATE FAUNA OF ST FRANCIS ISLES hay
— & Drnnis, TEL (1988) The status and
management Of seal populations i South Australia, yr
Augee, MLL. (hed.) “Marine Mainmals of Australasia:
Field Biology and Captive Management” Royal
Zovlogical Society of NSW, Sydney pp, $7-110.
CANTY, P. Moonny, P & Reppuck, P. (1996)
“South Australia’s Offshore Islands”. Australian
Heritage Commission. (Australian Government
Publishing Service).
— & Armsrrona, Do M. (eds) (1999) “A
Biological Survey of Kangaroo Island. South Australia,
1989 & 1990". (Heritage and Biodiversity Section,
Department for Environment, Heritage and Aboriginal
Affatrs, South Australia.)
> CASPPRSON, Ko Do & Hurcuinsox, M,N.
(2000) “A List of the Vertebrates of South Australia”
(Department for Environment and Heritage, Government
of South Australia).
CANTY, P, DL, Wack, N. M. & Barker, R, M
(2003) The Encounter 2002 Uxpedition to the Isles of Si
Francis Conservation Park, South Australia; Plants and
Vegetation. Zrans R Soc. S. dust. 127, 107-128.
Scumit. Lb. He (1977) Mitochondrial isocitrate
dehydrogenase variation in the Australian Bush Rat
Rattus fuscipes grevi, Animal Blood Graups
Biochemisiy and Genetics 8, 73-78.
(1978) Genetic variation in isolated
populations of the Australian Bush Rat Rats fuscipes.
Evolution 32, 1-14.
Scuwanrrk, T., FRancis, M. & IArvey, C. (1988)
Identification and Conservation of Carpet Pythons
(Morelia spilota imbricata) on St Francis Island, South
Australia. Herpetafatis 18 (2), 13-20.
SHAUGHNESSY. PD, (1999) The Action Plan for Australian
Seals.” (Environment Australia, Canberra).
: » GALES, N.L. Dinnis. T, BE. & Gorpswortiy,
S. D. (1994) Distribution and Abundance of New
Zealand Fur Seals. 4Arctocephalus forsteri. in South
Australia and Western Australia. MWild/. Res. 21, 667-698,
Verco, J.C. (1935) fn Cotton, B.C. (Bd.), “Combing the
Southern Seas”, Chapter 8 (Rigby: Adelaide),
Waith, E.R. (1923) The flora and fauna of Nuyts
Archipelago and the Investigator Group 10: Snakes of St
Francis Island. Trans. Ro Soe. S, dust 47, 127-128.
Warrs, C. 1S, (1974) The Nuyts Island Bandicoot
(lsaodon ohesilus nauticus). S. dust Nar 49, 20-24.
Woop Jones, F (1922) The flora and fauna of Nuys
Archipelago and the =InVestigator Group 2:
Monodelphian mammals, Trans. Ro Soc. 8. Aust 46, 181-
193.
— (1923) The fora and fauna of Nuyts
Archipelago and the Investigator Group 6: The
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Robertson: Sydney).
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF
ST FRANCIS, SOUTH AUSTRALIA: MARINE BENTHIC ALGAE
By H. B. S. WOMERSLEY! AND R. N. BALDOCK?
Summary
Womersley, H. B. S. & Baldock, R. N. (2003) The Encounter 2002 expedition to the
Isles of St Francis, South Australia: Marine benthic algae. Trans. R. Soc. S. Aust.
127(2), 141-151, 28 November, 2003.
Marine algae from the Isles of St Francis have been collected on six occasions from
deep water by divers or trawling; however, the shallower water and intertidal species
are largely unknown. Present collections include 17 species of Chlorophyta, 71
Phaeophyta and 158 Rhodophyta, probably representing only part of the algal flora
Known to be rich on the west coast of Eyre Peninsula.
Key Words: Marine benthic algae, subtidal collections, Isles of St Francis, Nuyts
Archipelago, offshore islands.
fraasechos of the Kaye Society af S, tush (2003), 1272) M44.
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES
OF ST FRANCIS,
SOUTH AUSTRALIA: MARINE BENTHIC ALGAE
by H. BOS. Womirsi by! AWD RL N, Banpoore
Summary
Wombesh hy. TL BS, & Batoook. RAN, (2003) The Eneuumter 2002 expeditian tothe Isles af St Franeis,
South Australis Marine bembiw iluae. fray A Noe 8) dest 12702). I4N-1S 1. 28 November, 2003.
Marine aluae from the Isles of SU Praneis have been collected off six occasions from deep water by divers or
Wanvlings However, the shallower water and litertidal species aire hirgehe unknown, Present collections include
I? species of Chlorophyta, 7) Phavophyts nnd 158 Rhodophyta. probably representing only: part ol ihe alval
Hora known to be pigh on the west coust of Eyre Peninsulin
Key Worbs: Marie benthic algae. subtidal collections. Isles af St brancis, Nuyis Avechipekwe, offshove
islanuls.
Introduction
A cluster of 11 islands, the most south-westerly of
the Nuyis Archipelago. forms the Isles of St Francis
(sce Fig, 1, Robinson etal, 2003), Marine algae have
been collected from these by the following:
1. The 1971 Royal Soeiely of South Australia
expedition, Collections by S. A. Shepherd,
reported on by Shepherd & Womersley (1976),
With characterisation of the algal and) Seagriss
communities along a number of transect lines,
Shepherd and Womersley (1970) tor West 1. and
(L971) Tor Pearson 1. concluded that (hese
communities resembled those of central anc
western South Australian coasts and were affected
hy substrate, wave energy and light penetration
with depth.
By Po Symonds from “near St Francis Isles”
(rawled at 37 m, 23 Oelober 1973.
, By S.A, Shepherd (SA Researel cid Development
Institute [SARDI]| Aquatic Sciences) from Smooth
Island in 1980,
4. By the late K.L. Branden (SARDIT Aquatic
seiences) Trom the Cannan Reefs and associued
scumounts in 199],
5. By K, Edy vane and KL. Braeden (SAR DI Aquatic
Sciences) between 15-24 June 1992, from St
Frances 1 and Penelon t.
6 Collections from the Encounter 2002 expedition to
the Nuyts Archipelige (supported by SARDI
Aquatic Sciences, the Department for Favironment
and Teritage, and lasrredian Gee), mainly by RN,
Baldock, some hy S.A. Shepherd.$. Murray-lones,
A, Witst and A.C. Cheshire.
is
td
Shiu: Herborume ot South Anatralia, Phan Giediversiy Genie
Hivuhoey Roath Hachkeey, Sowth Auseentia, 30a
Livery of South Vusiealia, Maivson ales eneplis. Saul
Nimlralin, SO9S formals robert bpldoulecanisdeuioie
Apparently, no algae were collected by cither the
Winders or Baudin expeditions of 1802,
Neurly all the above collections were wine by
SCUBA divers operiting from vessels und are
laigely of deeper water species, Unfortunately: very
few intertidal or shallow subtidal species have been
collected. Non-geniculate Corallinueeae were alse
not eallected nor the [frequent epiphytic ures
Wenutitied,
The present list includes 17 speeies a
Chlorophyta, 71 Phaucophyta and 148 Rhodophyta, a
total OF 246 species; identifications are generally: by
{he First author,
Collahion of the various collections will allow a
more comprehensive database for further eeologival
studies and (or considering the Isles of St Francis us
a potential Marit Protected Area, Iwo vbjectives of
(he recent expedition.
Names and chissilications below follow “The
Marine Benthic Flora of Souther Australia”
(Womersley 1984, 1987, 1994, 1996. 190K. 2003),
hough in-u number of cases changes have been
introduced from later studies by other phycologists.
Site Deseritions for the 2002 Collections
1. Mast Point, St Praneis Island
This is a rocky headhined at the cust end of Petrel
Bay. In the lee of prevailing winds, it is
nevertheless exposed to moderate wave enerey
and consists oF dipping and fictured granite strat
weathered int) several lurve crevices. These form
several shallow caves at depths of about 10m and
extensive sloping steps to a sandy bottom at a
depil ot (7-18 ni, The dominant canopy cover on
rock as of mixed Tueoids, mainly species of
Cywaphora and Sareassn. with Keklonia and
palehes of Carlene and Osmania. Seagrass
meadows and patches of /elaplila occur on the
sandy bottom
he 1.505. WOMERSLEY & RON BAL DOCK
2 Pemal Bay, St veneis island
Petrel Bay consists of a sweepiig bay of coarse.
siliceous sand, betyeen uranitie headlands,
subjvet to moderate wave energy, Sleep, cusp-
shyped, reNective beaches have formed between
pulches of outeropping calcurenite that are topped
by dunes, weathered to low benches, and. planed
into narcow horizontal shore platforms in the
intertidal, The dominant lower-intertidal cover on
calearenite platlorms consists of Harmasira, with
species Of Chstophora and Sergescaen in rock
pools, Heavily molluse-prazed algal mats
(probubly including Capreafiae and geniculile
vordlines but vot collected) extend from the
intertidal to a bare, sandy bottom at 2 m depth.
4. Nardiewest Corner of West Istand, about 2 hiv
Hast of St Premeis tylaned
This is u headland ol granite rock, exposed to
considerable wave surge. sloping some 30° 10 4
shell gril bollom at about 21 an depth that is
bruken by rounded outerops of rovk lo 2m high,
Fueoids are dominant, and keklonia (largely tree
of epiphytes) is also prominent toa depth of 20 1n,
Gelinaria ulvoided and Qsenucderia prolifera
clumps exist, and Cawerpe spp. and Cocdinn
“Hiisianune” grow al depth. close to the sand
line, Amphibolis is the dominant plant in sand
A North Paint, St Francis Istaned
This consists of a block-jointed, granitic headland
at the marth end of Petrel Bay. exposed to
significant wave surge, dropping vertically tou
Nat-topped roel al about 15 m1 depth with sandy
bottom at 20m. Several dielyolaceous species and
the red alway Glolaseeeion hrawiii, occur as
prominent patches amongst the domiint fueord
cover: Heavily epiphytised scagtasses, Tayphibalis
aind Posie, grow on sand at about 20m,
Deere Sites, near Dow Isleand and near bare
Island
The sea bottom. viewed by means of a video
cahera, Consists of coarse sediment and patches
of low, broken reef at 21-26 nr depth Bedledia and
Porithalia were prominent, seattered in sand
Many thenibranous red algae and the brown tulsa
Cloysaphare ocaurred on sponge, large solitury
Uinicates and the broken reel,
200 mi West of Smooth island, about 2 kin Narth-
vet of st Francis stanet
The bottom topography at 24-25 m1 consists of u
broken. wraniie reel, 1-2 om high, bedteee and
Survessam yarians form the canopy layer, wath
Conlerpe flesilis, Co geminata and ©. hedheyi ny
the understaney.
Freeline Island 4 kin Narii-east a] St brancts
Istunil
This isa small valeareniie istind (Fliweel with tit,
Wwave-vut intertidal platforms undercut ul low lide
mal
6.
level into shallow eaves subject to moderate wave
energy. Rock-falls front the steep cliff fies hive
formed large. tilted, irregular blacks sublidally to
a sandy bottom) ut Som, separated by narrow
channels, or forming interstitial caves containing
hydroids und goreonian coral, Canlerper flevils,
Lohbophara varlegete, and Pevssonne/ ie capensis
are prominent on sloping rock and at edges of
caves im light, The presence of a significant
umountol Ura on the intertidal platform suggests
a nutrient-rich environment. probably cue to the
presence of murine birds on the island
West Coust, Se Francis istaud
This is reported to be a vertical, pranitic rock-laee,
about S00 nm south of North Point. St Francis
Island. exposed to high wave cnerey (S.A,
Shepherd, SARDI, pers, comm.),
x
Methods
Collections were mostly laphuyard, seeking
yepresentative samples of communities god mature.
reproductive, specimens which could be determined
satisfactorily, Some of the kdyvane collections were
made fron quadrats.
The Hist of species is based on specimens now
deposited in AD (State Herbarium, Adchuded,
Site Codes dived for algal collections
code sile depth tin) -calleetor date
CR Cannan Reet
seamount 77-4 Branton 21,199)
Cannan Reefs 20) 25 Branden 224 199)
BD) Tkmsouthol — diedyed Cheshire 23.41,2002
Dog Island trv 25
Vb near how tstand dredged = Cheshire TY 2002
fron) 26
2 fast Pout S40 Buldoek Whi 2002
Si Vranas b We 15 Baldock 18 11,2002
(Fe[s Baldock 2) 2002
i) Hirst 174), 2002
Ph benelon bh 3 |S Edyvane = [9 &
Tv YY
10 Branden 22.01.1992
FL breeding |, 35 Baldock i
NP North Poin, 17M Baldock
Se Praneis 1,
20 meast af 30) Baklock = -23,4,2002
North Point,
St Vranens t.
inside (West aly 9 10) Shepherd 160) 2002
Noth Port,
St Panes
North Point, s
St Franny b
North Mant,
St byiaicls |
Murtayelonys E71) 2002
KM) Shepherd = 2) 1) 200?
MARINI: BENTHIC ALGAL OF THE ISLES OF ST FRANCIS 143
North Point, 10 ‘Turner 23.41.2002
St Francis 1,
west side of 26 Baldock = 23.41,2002
North Point.
St Franets I.
PB Petrel Bay, shore Murray-Jones 18.1,2002
St Francis I. platform edge
SF St Francis 1. trawled Symonds — 23.x.1974
37-44
? Edyvane — 20-
23.vi.1992
22 Shepherd — 29.11, 1980)
WIS Branden 17, 20&
21 vn 1992
SI 200 m west 24-35 Baldock = 24.11.2002
of Smooth I.
Smooth 1. 22 Shepherd — 29.111, L980
WC West Coast, 20) Shepherd — 16.11.2002
St Francis I.
WIL North-west 72 Baldock 19.11.2002
point, West I. 15-17 Baldock = 25.11.2002
1971 collections (Shepherd & Womerslev (974) far
St Francis Land Masillon 1.
(A) North-west corner of St Francis |., to 37 m.
(B) Masillon 1, to 33 m
(C) North-east corer of St Francis [., to 20m
(D) In Petrel Bay, St Francis 1,
Results
Algal Species List, with Depths in Metres, References to“ 1976" ave to Shepherd & Womersley 1976.
CYANOPHYTA
Rivulariaceace
Rivularia firma Womersley
CHLOROPHYTA
Cladophoraceay
Apjohnia laetevirens Harvey
Cladophora coclothrix Kiitzing
Anadyomenaceae
Struved plumosa Sonder
Valontaceae
Dicivosphaeria sericva Haryey
Codiaceae
Codium “nuvtsianum” sp, nov.
Codium valeatum J. Agardh
Caulerpaceac,
Caulerpa brownii (C. Ag.) Endlicher
Catilerpa cactoides (Tarn,) C. Agardh
Caulerpa flexilis Lamouroux
Coiderpa flexilis Lamouroux var, ninelleri
(Sond,) Womersley
Cailerpa gentinata Harvey
Canlerpa hedleyi Weber yan Bosse
Caulerpa jongifolia C, Agardh ft. erisperter
(Harv.) Womersley
Canlerpa obscura Sonder
Caulerpa papillosa J. Agardh
Canlerpa scalpelliformis (R. Br.) C. Agardh
Cuulerpe simpliciuscula (Turn.) C. Agardh
Caulerpa vesiculifera Harvey
PIIAEOPHYTA
Eetocurpales-Ectocarpaceae
Hinksia mitchelliae (Hary.) Silva
Sphacelariales-Sphacelariaceae
Sphacelaria biradiate: Askenasy
Sphacelaria novae-caledoniae Sauvageau
PB, platiorm edge
Fr,5, 18m
PB, platform edge
DI, Fl. S1,3 25m
EP,5- lA m
EP. SL WI, 10.25 1m
SF, 37 m, trawled
FNP (a, BC), 0-38 m, and on
Amphibolis
NP, SF (4, D), 2-38 m
EP, PE, Fl, NP, PB. SE SL WL.
(4, D) 0-25 m
CR, WE( B,C), 6-30 m
SI, 24-25 m
CR. SI (1), 24-30 m
(PD),2m
WI(P),2 21m
PB (4, 2). 0-2 m
DI (4, 6, C, YD), 2-35 im. and dredged
CR UAC), 10-38 m
EP, FL, 3-15 m
DI, 25 m on Dictvapteriy muelleri
EP, NPL & 201m. epihytic on Sargassiin,
Pachvdictvon and Dilophits
NP.17 20 m on Dicranenit revolutum
on Posidonia angustifolia
I44 1, B.S. WOMERSLEY & RN, BALDOCK
Sphaceluria novae-hollandiae Sonder
Stypocaulaceac
Halopieris pyeudospicata Sauvageau
Phlojoeailon spectabile Reike
Dictyotales-Dictyotaceae-Dictyoteac
Dicivotu diemensis Kiitzing
Dictvota furcellata (C. Ag.) J. Agardh
Dictveta naevesa (Suhr) J. Agardh
Dietyota radicany Harvey
Dilophus angustuy J, Agardh
Dilophus fastigiatus (Sond) J. Agardh
Dilophus guanianuiy J. Agardh
Dilophus rebusiis (J, Ag.) Womersley
Glossaphora nigricans (J, Ag.) Womersley
Pachydictvon paniculatum (J.Ag.) J, Agardh
Zonarieac
Chlanidophora microphylla (Mary.) J. Agardh
Diervopteris muelleri (Sond.) Reinbold
Distromium flabellanin Womersley
Distrominm nuiltifidiuat Womersiey
Homovostrichus sinclair) (Mook. & Harv.) J. Agardh
Lobophora variegata (Lam.) Womersley
Lobospire bicuspideta Areschoug
Palin senctae-crucis Borgesen
Zonaria aneustata (Kitz) Papentuss
Zonaria crenata J, Agardh
Zonaria sinclairii Wooker & Tarvey
Zonaria spiralis (J.Ag.) Papentuss
Zonaria tarneriana J. Agardh
Scoresbyellaceue
Scoresbvella profimda Womersley
Chordariales-Chordariaceae
Clalosiphon filum (larv.) Kylin
Connophloea eystophorae J. Agardh
Polvecrea nigrescens (Maryvey ex Kitz.) Kylin
Sporochnales-Sporochnaceae
slustrenercia australis (Uary.) Womersley
Bellotia eriophorum VWarvey
Encvothalia clifionii Harvey
Sporochaus radieiformis (Yurn.) C. Agardh
Seytosiphonales-Scytosiphonaceae
Colpomenia sinnosxa (Mett.) Derbes & Solicr
Hydroclathrus clathranis (C. Aw.) Howe
NP, 15 mon juvemle £ek/onfa racicte
NP, 26m
FL NP, 3-26 m, and epiphytic on
Amphibolis
CR, EP, NP (4, 8. C), 6-38 m
SI, WI (4), 15-35 m
WC (B, Masillon Las “Pachvdictvon
nov. sp.” in 1976), 13-20 m
CR, EP. NPL WC, WE (A, B, Cas 2D.
prolifera in 1976), 5-38 m
NP, 17-20 m on Posidonia aneistifolia
DI, EP, FE. NP. SF, ST (2, C), 7 25 m
EP, PE, SF, 5S 20m
CR, EP, FE, NP, SE, SI, WI (4, &), 5-30
in, and dredged
CR, DL SI (A, B), 13-38 m, dredged
and on Amphibolis
CR, EP, Fl, PB, NP, SF) SI, WI (4, BC
and Masillon 1), platform edge-35 m,
dredged, and on Amplihelis
SI, FE (8, C), 19-22 m
CR, DI, EP, NP (4, B, C,), 6-38 m, and
on elinphibalis
CR SE. 10-30 m
FI, NP, SF. 3-26 m
CR, El, EP. PE, NP, SE, WI, 15-38 m
EP, FL. 3-L8m
CR, El, EP. NP. PB, SFL WC (4. B,C).
platform edge 35 m, commen
EP, 10 [Sm
SF.10 15m
DL, El, EP, NPL SR. WC (4). 5-38 m
(4. BLO), 10 38m
CR, EP, FE, PB, SF, WI (4. B.C’),
platform edge-3& m
hI, NP (1). 13-38 m, and on
Ainphibalis
PIC AL as "Noy. gen?” in 1976). 32 38 m
(C.D, as Bactrophoara filunt and B.
vermicularis in 1976), 3-22 mon
Posidonia spp,
(C), 1O-1K m, on Cystaphora browiiil
(C.D), 3-20 m, on Poviconia sp-
DI, 25 m, dredged
CR, EP, NP Gd, 6). 7-38 im
DL, 25 m. dredged
GPL PL. ST (-L as 8. comosxus in 1976),
32 38m
FLONPL 3) LO m
FIL NP (C). 3-100"
MARINE BENTHIC ALGAL OF THE ISLES OF ST FRANCIS 45
Dictyosiphonales-CGiraudyaceae
Giraudya robusta Skinner & Womersley
Punctariaceae
typerococcus bullosus Lamouroux
Laminariales-Alariaceae
Ecklonia racliate (C. Ag.) J. Agardh
Fucales-Hormosiraceae
Hormosira banksii (Yurn.) Decaisne
Seirococcaceae
Sevrothalia dorvearpa (Turn.) Greville
Cystosciraceae
Acrocarpia paniculata Areschoug
Cystophora brownii (Turn.) J. Agardh
Crstophora expansa (Aresch.) Womersley
Cystophora gracilis Womersley & Nizamuddin
Custophora intermedia J. Agardh
Custophora monilifera J). Agardh
Crsviephora moniliformiy (Esper) Womersley & Nizamuddin
Cystophora pectinate (Grev, & C. Ag.) J. Agardh
Cystophora platylohium (Mert,) J. Agardh
Custophora retorta (Mert.) J. Agardh
Cysfophora subfarcinata (Mert) J, Agardh
Mvriodesima harvevanum Nizamuddin & Womersley
Mvriodesma integrifoliam Marvey
Mvriodesme quercifolium (Bory) J. Agardh
Scaheria agurdhi Greville
Surgussaceac
Subgenus: Phyllotrichia
Sargassum decipiens (R. Br.) J. Agardh
Sargassum flindersii Womersley sp. nov,
Sargasmun heteromarpliin J. Agardh
Sargassum varians Sonder
Sargassum verruculosum (Mert) C, Agardh
Subgenus: Arthrophyeus
Sargassum fallax Sonder
Sargaysin lacerifotium (Yurmn.) Agardh
Sargassum tistichum Grev, & Agardh ev Sonder
Subgenus: Sargassum
Sergassie distichim Souder
Sargassum lincarifolivm (Turn) Agardh
Sargassum podacanthum Sonder
Sargassum spinuligerna Souder
Sargassum sp. stecile
(Dias G. sphacelarivides in 1976),
3m, on Posidania siniuosea
NP, SL. 17-22 m, and on
Posidonia angustifolia and Amphiholis
CR. DIL EP. FI, WE (4. 8, C). 3-25 m.
common
PB, and generally distributed, but not
collected, lower intertidal
CR, DI. EP. FE, NP, SFL SI. WC, WI
(4, B,C, Masilfon 2). 2-25 m
SF. 37m, trawled
FLNP. SF (B,C), 2 13m
SF. 5-10 m
FE, SF (8), 4-7 m
(4,0), 0 31m
CR, EP, PEL FL, NP, PB. ST, WI (4, ©).
platform edge 30m
PE, PB (&). platform edge 10m
EP, FEL SF, SI (4, B,C). 6-21 m
CR. FEL NP. SF. 15-44 m
SF, SI. 10 21m
EP. FI, SF (B,C). 0-19 m
(4, 6), 2-7 m
DI, SF. 10-25 m. and dredged
DI. 25 m
SF. 1A m
EP. FE. NP, SF (B,C), 2 19m
El, 32-38m
SF (C). 2-20 m
CR, EI, EP, FE, SF. SI, NP
(4, 8. ©), 6-26 m
CR, EP, FEL FI, SF, WIL, BC),
3-30 m and trawled
DIL, SEL WI (sf, BOC, D, and Petrel Bary,
as 8. hracieolosua in 1976). 2-38 m,
and in the dmphihofiy community, and
trawled
CR, EPRFE, SE, WE (4. Masilfon 1).
7 351m, largely sterile
(Masillon I.) 1—) m
(1). 35m
SF (B.C), 4-44 m and trawled
SF (4). 10-38 m
SF (4), 6 35m
DI FPLWI(C), 10-25 m, and dredged
40 I. BLS, WOMERSLEY & R, N. BALDOCK
RHODOPITYTA
Nemaliales-Liagoraccac
Liagera harvevana Zech
Galaxauraceae
Galaxaura marginata (Ellis & Sol.) Lamouroux
Gloiophloea scinajoides J. Agardh
Seinaia moniliforinis J, Agardh
Scinaia tsinglanensis Tseng
Gelidiales-Gelidiaceae
Prerocladia lucida (Varn.) J, Agaedh
Cigartinales-Peyssonneliaccac
Peyssonnelia capensis Montagne
Pevssonnelia foliosa Womersiey
Sonderopelta coriacea Womersley & Sinkora
Halymeniaceac
Carpopeltis phyllophara (Hook. & Marv.) Schmitz.
Crypionemia undulata Sondet
Gelinaria ulvoidea Sonder
Halymenia floresia subsp. harvevene
(J, Ag.) Womersley & Lewis
Halymenia mueller? Sonder
Halymenia plana Zanardini
Thamnoclonium dichotommm (J. Ag.) J. Agardh
Dumontiaceae
Acrosymphytun taylorii Abbott
Krafiia dichotoma Shepley & Womersley
Kallymeniaceae
Austrophvllis alvicarnis (J. Ag.) Womersley & Norris
Cullophyllis lantbertii (Vurner) J. Agardh
Callophyllis rangiferine (Turn,) Womersley
Cirruficarpus nanus (J. Ag.) Womersley
Kallvmenia cribrosa Harvey
Kallymesiia spinosa Womersley & Norris
Thunmophvilis lacerata Womersley & Norris
Nemastomataceae
Adelophvens corneus (I, Ag.) Krafl
Cigartinaceae
Gigartina densa Rdyvane & Womersley
Dicranemataccae
Dicranema revolutum (CO Ag.) J. Agardh
Areschougiaceae
Areschousia congesta (Tum.) J. Agardh
Erythroclonium angustatun Sonder
Erythreclonium muellert Sonder
Rhahdonia clavigera J. Agardh
Solieria rabusta (Grev.) Kylin
Acrotylaceac
Hennedva crispa Harvey
Plocamiaceue
Placaminuth angustum (J. Ag.) Mooker & Harvey
Plocamiunt cartilaginenm (L.) Dixon
FI (A, 2-5 im
EL, NP (4, 8, Masillon I, as ©.
spathulata in 1976), 1-38 in
EP, NP, 10 25, and epiphytic on
Amphibolis, sponges and tunicates
DI, 25 m, dredged
SI, 24-25 m
CR, EP, FL(B, Mavillon 1) 1 30m
PE, FL, 3-20 m
CR, SFL SI, 10 25 m
CR, FE, SF. WI (8), 15-30m
CR, FE, SF, WI (4 and Masillon 1),
37 mand trawled
SF (D), 2-20 m
EP FRE. NP, ST, WLE(C), 10-21 im
(B.C). 10-18 m
EP. 10 15 m
EP, 10-18 m
CR, EP, NP, SF (4), 530m
(4), 32-38 m
NP. SI, 17-22 m, on Amphiholis stems
FE, WI (4, 2), 10-38 mM
SF (4), 20 55m
CR, DL. FE, SL WI (4, B. ©), 0 25m
CR, 22 30m
CR, NP (4, B). 13-38 m
(4), 55 m
NP. SI (4), 26-38 m
EP. 10-15 m
FELS m
NP. SL(D, on Amphibolix aniarctica),
2.20 m on Amphiholis and Posidenia
angustifolia
EP, FE, Fl, NP, WI (4), 3-38 m
SF, 20 m
SF, 20 m
DI. SF, 15-25 m and dredged
DL FILNP (4, C, PD), 3-38 m
(D, loose Iving), 24m
CR, PE. SP, SL WC. WI (4, B, ©),
6-55 m
DI, FEL SI (C4, 2), 6-38 m
MARINE BENTHIC ALGAE OF THE [SLES OF ST FRANCIS
Plocamium lepiwphyllin Kiitzing
Plocamium mertensii (Grev.) Harvey
Plocamium preissianum Sonder
Phacelocarpaceac
Phacelocarpus complanatuy Harvey
Cystocloniaceac
Austroclonium charaides (Marv.) Min-Thein & Womersley
Craspedocarpus blepharicarpus ( Harv.)
Min-Thein & Womersley
Craspedocarpus ramentaceus (C. Ag.)
Min-Thein & Womersley
Craspedocarpus venosus (Kiitz.) Min-Thein & Womersley
Rhodophyllis membranacea (Mook. & Harv.) Harvey
Stictosporum nitophyloides (Warv.) J, Agardh
Ilypneaceae
Iyprea ramentacea (C. Ag.) J, Agardh
Mychodeaceae
Mvchodea australis (Zanardini) Krafi
Mychodea aciculare (J. Ag.) Keatt
Mvchodea carnosa Hooker & Harvey
Mychodea gracilaria (Sond.) Krati
Mvehodea pusilla (Marv.) J. Agardh
Mychodeu ramulosa J. Agardh
Rhodymeniales-Rhodymeniaceac
Botrvocladia sonderi Silva
Coelarthriun cliftonii (Sond.) Harvey
Coelarthrimn opuntia (Endl) Bargesen
Gloivcladia australe (J. Ag.) Norris
Gloivcladia sp.
Gloiosaccion brown) Harvey
Hymenocladia usnea (R, Br.) J. Agardh
Rhodymenia australis (Sond.) Harvey
Rhodvmeniocolax qustrina Womersley
Webervanbossce kaliformis (J. Agardh) De Toni
Webervanbossea splachnoides Wary.) De Toni
Nehervanbossea tasmanensis Womersley
Champiaceae
Champia affinis (Hook. & Mary.) J. Agardh
Champia costericola (Harv.) Reedman & Womersley
Champia viridis C. Agardh
Chrlocladia grandis Reedman & Womersley
Corallinales-Corallinaceae-Austrolithoideac
Austvolithon intumesceny A. Narvey & Woelkerling
(1). 55 im
CR, DL, EP, FE, NP, SF. SI WC. WI
(4, B,C), 6-55 m
CR, DIL, FE, NP, SF. WI (4, B,C).
6-55 in
WI. 15-17 m
DIL SF. 1S
PEOSP. 1S
25 mand dredged
20m
DI (4, Bas Rhodophyllis ramentucea
in 1976), 25-38 m, and dredged
NP.SI. 17-25 m. and epiphytic
(4, B), 13-35 m
DI. 25 m, dredged
CR. DINP (A, B. Clas Aypneu
episcopatis in 1976), 2-30 m, usually
epiphytic
(Clas Neurophyilis asiralis in (976),
19-20 m
DI, 25 m, dredged
DI (£1, A). 25-38 m, and dredged
NP, 20m
NP (), on mphibalis entaretica), 20m
(6).4-7m
FL. DIL NPL ST (C. as Bo oboverte
inl976). 3-25 m
(4), 32-38 m
EP. NP (4, as ©. mve/leri in 1976),
5 38m
NP, SI, 20-22 m
CR (Aas “Panchea?” in 1976),
22-38 m
CR, NP, WC (B,C), 10-30 m
DI, NP, SF, 10-25 m, and epiphytic
CR, EP, FE, FI. SF, SI. WI
(4, Dy, 2-55 m
NP, 26 m, on Riodvaenia austretis
CL B,C), 10-38 m
NP (4.0). 19 38 m
NP, 20m
(dias Ch, vhsoleta in 1976). 2 m
(4, B. Clas Ch. affinis in 1976).
13-38 m
CR. NP (4, as Ch. fasimanica in 1976),
20-38 m
NP, 17-20 m
(SF. not cited in 1976). 0-2 m on
Haliptilon raseum. Det, WI,
Woelkerling,
lay
11, B.S. WOMERSLEY & RN. BALDOCK
Melobesioideae
Spnurthroplvton patena (Hook. & Mary.) Townsend
Amphiroideae
Amphiroa anceps (Lamarck) Deeaisne
Amphiroa gracilis Warvey
Corallinoideae
Haliptilon rescum (Lamarck) Garbary & Johansen
Junia micrarthrocdia Lamouroux
Jania mimita Johansen & Waimersley
Jania pulchella Harv.) Johansen & Womersley?
Jania pusilla (Sonder) Yendo
Metagoniolithoideae
Metagoniolithon chara (Lam.) Ducker yar, cfera
Metagoniolithon radiatum (Lamarek) Ducker
Metavanilolithon stelliferum (Lamarck) Weber van Bosse
Bonnemuaisoniales-Bonnemaisoniaceae
Asparagopsis armata Marvey
Falkenbergia stage of A. ernie
Delisea elegans Lamouroux
Delisea hypneoides Uaryey
Delisea pulchra (Grey.) Montagne
Ceramiales-Cerammiceae
Watrenicae
Warrenia comosa (Hary.) Harvey
Wrangelicac
Wrangelia velutina (Sond,) Harvey
Crouanieac
Gativa pinnella Harvey
Gulsonia annulata Harvey
Prilocladia vestita (lary,) Wollaston
Sphondylothamnieae
Shepleva eustratis (J, Ae.) Gordon
Antithamnieae
Acrothanmion preissti (Sond,) Wollaston
iitithumnion armatum (1. Ag.) De Toni
Antithamuion crucianun (C. Ag.) Naegeli
Antithammion delicantum (Hary.) De Tom
Antithamnian hanovioides (Sond,) De Toni
Pierothamnicae
Ballia balliaides (Sond.) Wollaston
Ballia callitricha (C. Ag.) Kiiizing
Ballia marfana Uarvey
Prerothammion francisianin (Wollaston) Athanasiadis
(B, on Ballia calfitricha; as
Polyporolithon patena mw 1976). {318m
EP, FL NP, SE, WC (4, BC). 3-38 m
FE, PB, platform edge-26 m
CR, EP, FE, NP, PB. SF, SI (B,C, 2,
as Corallina cuvieri in 1976), plattorm
edge-22 m, and on Amphiholis
NP. PB (4, D, on Posidonia australis;
C as J. fastigiata in 1976), platform
edge-20 m
(D, on Posidonia australis), 3m
(4), 32-35 in
(B. Masillon lon Cystophora
subfarcinata), \-7 m
SUC, as MW. charoides in 1976), 622 m
PE, NP, PB, SE, platform edge 10 m
NP, PB (SL, 2, an Amphibatis
antarclica and Posicdenia ostenfeldti),
platform edge-22 m
DI, FR, Fi (4. B), 338m
NP, 17-20 m
EP, SIE (4/7 but not recorded in 1976),
17 38m
DI. EL, EP, FE, NPLSI, WC. W1
(4, B, Cand F£/), 8-38 m
CR, DI, FE, WI, SE. SI (4, B).
10-38% m
D, 25 m, dredged
NP. ST, 20 22 m, on Amphibolis
DI, NP (4), 25-55 m, epiphytic
WC, WI(C), 17-2 m
NP, 20. m, on Aniphiholis
CR. on Pierucladia lucida
CR, EPFL NP. SE(B, on Ballie
callitvicha), 3-25 m, and epiphyte
DIL FI. Wi. 325m
NP, 26 m, epiphyte
(4, as divithamnion divergeny WW
1976), 55m
SI, 24-25 m, epiphytic
(1), 55m
CR, FE, NP, SP GEL B), 10-35 m,
and epiphytic
(4), 55 0
Aas “Platvthammion nov. sp?”
in 1976), 35m
MARINE BENTHIC ALGAE OF THE ISLES OF ST FRANCIS I4u
Heterothaninieae
Amoenothamnion planktonicum Wollaston
Perithammion muelleri (Marv,) Womersley
Trithomnion aculeatium (Harv.) Woraersley & Wollaston
Callithamnicae
Callithamnion byssaides Arnott
Callithamnion pinnatum Womersley?
Compsothammnicae
Dasvthamniella plumigera (Hary.) Womersley
Heloplegma preissii Sonder
Griflithsieae (Det. R. N. Baldock)
Anotrichiun elongatum (Harv,) Baldock
Griffithsia monilis Harvey
Griffithsia teges Marvey
Ptloteac
Euptilota articilata (J-Ag.) Schmité
Rhodocallidiae
Rhodocallis elegans Kiitzing
Spyrideac
Spyridia dasyoides Sonder
Spvridia filamentosa (Wulfen) Harvey
Ceramicae
Ceramium cliftonianum J, Agardh
Ceraminm adhaerens Woinersley sp. nov.
Ceramium pusillum Uarvey
OF uncertain position
Perischelia glomerufifera (J, Ag.) J.Agardh
Dasyaceae
Dasva haldockij Parsons & Womersley
Dasva clavigera (Womersley) Parsons
Dasva naccarinides Warvey?
Dasva cliftonii Harvey?
Dasva villosa Harvey
Heterosiphonia nuelleri (Sond.) De Toni
Heterosiphonia wrangelivides (Mary,) Reinbold
Thuretia quercifolia Decaisne
Delesseriaccac-Delesserioideac
Apoglossiim spathulanun (Sond.) Womersley & Shepley
Chandea elegans Lamouroux
Nitophylloideae
Heterodoxia denticulata (Kuntze) J. Agardh
Rhodomelaceae-Polysiphonieae
dffeynea bicornis Womersicy
Polvsiphonia crussiuscule Harvey
Polysiphonia decipiens Montagne
Polysiphonia sertularioides (Grat.) J. Agardh
Lophothalieae
Brongniartella australis (C. Agardh) Schmit
Doxodasva bothochate (Hary,) Falkenberg,
DI, 25 m, dredged
DI, 25 im. dredged
DI, 25 m, dredged. on
Leonormandia latifolia
NP, 15 m, on Gloiosuccion
(Ege Las “A, Cullithamnion sp.”
in 1976). 32-38 m
WI. 15-17 m
CR. NP, SF, SL, 10-25 m.
and on Aunphibolis
DI, 25 m, dredg
(1), 2m
DL, 25 m, dredged
ed
CR, DI. FE. [5-25 m. and dredged
(1). 55 m
SF, WI, LO-17 m
SI, 22m
FI, NP, 3-26 m, and epiphytic
EP, WC, 17-20 m, epiphytic
DI. 25 m, on Lenormeanadiea latifolia
DL. 25 m
SF. 19-20 m
FICC, D), 0-5 m
(C), 19-20 m
NP, 20 m. epiphytic
DI. NP. 20 m. epiphytic
SP, SE, 15-22 m
NP, 20 m
DI, NP, SF. SI, 10-25, epiphytic and
on Aimphiholis
DL NPLWI, (8, asl. resmrenicnim in
1976). 15. 32m. and epiphytic
SI, 22m
DI, 25m
CR, DI, FE, FL NP, SFL WE (8, as
“Prerosiphonia sp” in 1976), 3-26 m,
and epiphytic
SI, 22-30 m
EP, NP, SE. WC (4, as P nigrite in
1976), 2-20 m, and epiphytic
NP. 26 m, epiphytic
NP, 820 m, epiphytic
DI. 25m
150 1 BOS. WOMERSLEY & R.N, BALDOCK
Micropeuce feredayae (Harv.) Kylin NP, WI, 17-26 m
Herposiphonieac
Ditria explefa Vuuisman Pl, 3-5 m. epiphytic
Herposiphonia elegans Womersiey sp. nov. (Ege 1), 55m
Herposiphonia monilifera (Hook. & Mary.) Falkenberg NP, 26 m, on Dictvota radicans and
Cystophora platylobium
Herposiphoniella plurisegmenta Wometsley CR. (Bas “Dipterosiphonia nov, sp?" in
1976), 13-22 m
Polyzonicae
Cliftonaea pectinata Harvey NP (4, BC), 13-38 m
Echinosporangium semipennatum (Lam) Kylin DI, SF, 25-37 m, and trawled
Lophosiplionia group
Lophasiphonia prostrata (Mlary.) Falkenberg FI, NP, 3-8, on Distrominm multifidiin
Pterosiphonieac
Dictvomenia tridens (Mert.) Greville DI, SI, 22-25 m, and on Aniphibolis
Pallexfenia pedicellata Harvey NP, 20 m, on Amphibolis
Amansieac
Amansia pinnatifida Harvey FE, 20m
Amunsia serrata (HMarv.) Womersley DI, 25 m
Lenovmandia latifolia Harvey & Greville DI, 25m
Lenormandia spectahilis Sonder SP, 37 m, trawled
Osmimndaria prolifera Lamourous DI, FE, NP, SL, WI (8, C), 12-26 m
Vidalia spiralis (Lam.) Lamouroux DI, SI, 21-25 m
Chondrieac
Choneria sp. — slender, juyentle plants NP. 17-20 m, on Amphibolis
Cladurus elatus (Sond.) Falkenberg DI. SI, 21-25 m
Laurencicae
Chondrophycus paniculatus (C. Az.) (C. as Laurencia paniculata in 1976),
Furnari i Boisset et a, 19-20 m
Lanrencia elata (Agardh) Harvey CR, FE. (B). 10-30 m
Laurencia filifarmis (C. Ag.) Montagne £ filiformiix EP, FE, NP, SF, 0-38 m
f. dendritica Saito & Womersley (4, BI), 32-38 m
{. heteroclada (Harvey) Saito & Womersley (4, EL), 32-38 m
Unelescribed Species from the Isley af St Francis
The above collections included the following undeseribed species, most of which are known elsewhere from
ihe west coast of Eyre Peninsula; these will be published separately:
Codium nuvisianun sp. nov.
Gloiocladia sp. nov?
Sargassum flindersii Womersley sp. nov.
Ceramium adhacrens Womersley sp, nov.
Herposiphonia elegans Womersley sp. oy,
Extensions of Distribution Range
(compared with “The Marine Benthic Flora of Southern Australia” Womersley 1984 — 2003):
CHLOROPILYTA nil
PHAEOPIIY TA extension wesl
Dilophus angustus J. Agardh
Sargassum lacerifoliun (Turner) C, Agardh
Zonaria anetustata (Kitzing) Papenfuss
extension cast
Padina sanctac-crycis Borgesen
RHODOPHYTA extension west
Antithamnion cruciatum (C, Agatdh) Naegeli
Austroclonium charoides (Hary.) Min-Thein & Womersley
Callithammion pinnatin Womersley
Chylocladia grandis Reedman & Womersley
MARINE BENTING ALGAL OF THE ISLES OF ST PRASCIS {al
Cirrultcarpus mune (1 Agardh) Womersley
Dasvihamoicla plianigere (Marvey) Womerstey
Halvaenia muelleri Sonder
Peyssonnctia foliosa Woinersley
Phacelacarpis conplanatus Marvey
Plocaminn lepropiyliin Kiiteing
Polvsiphontia (russinscule Harvey
Rhodvmeniocolay cusirine Womersley
Scinaia nonitifarmix J, Agarah
MWorrenia comiase Hearver
Wehervinrbossea lasmanensis Womersiey
SEQUrayses
Apart rom the 197 | collections of S.A. Shepherd,
seagrasses were not deliberately collected: however,
from the lrugments ussociated with epiphytic algae
and those separately collected, it is evident that the
following at least occur in the Isles of St Pranets:
Heterozostera faxmanica (Martens ey Aschetson)
den Hartag. sites NP (9), 326 mn
Snpbolis catarctice (Labill,) Sonder & Aseherser
ev Ascherson, siles NP (/3), 2-20 10
Posiddonia cugistifalia Cambridve & Kuo
P coriacea Kuo & Cambridse
P devtartogi Kuo & Cambridge
I. sinnosa Cambridge & Kuo
Haluphila austratiy Dow & Stone site EP,
10-15 mn
Discussion
\Uis evident that the Marine ulval flora of the Estes
ol St Francis is essentially similar to that elsewhere
along the west coust of Eyre Peninsula, and muy
lurther species undoubtedly ovcur in the archipelase.
Most of the species deseribed in “The Marine
Benthic Flora of Southern Australia” (Womersley
1984, POST. 1994, 1996, 1998 WOR) with
distributions overlapping the Isles of St Francis
would be expected to occur there.
The survey of the Isles of St Francis in 1992 by
Pdyvane ound Branden contributed to the
development of o national biophysical classifieation
of Major mating ceosystems leading to proposals for
series of representative marine and protected areas.
Although the sample sites and methods were not
Ihe same. comparisons (Baker & Kdyvane, 2003: &
pers, comm.) of algal distributions from 197]
(Shepherd & Womersley. 1976) showed that while
the domingit species were practeally identical in
both surveys, a higher biomass of fuecoids occurred in
1992, This was uecounted for by the difference in
season! growth patterns, especially of Sargessnnr
species. Although no quantitative measures were
made. observittions during {he 2002 survey ayree
with these assesstnents: dictyoluceaus mucrophytes
and other understorey species were prominent,
probably as they were more readily exposed lo view
due to the loss oF obscuring laterals of the Suvgeasin
canopy,
References
BaAsgrRe dt & bby aye KOS, (2003) Subtidal macnoforal
survey Of St Francis und Penelon Islands. Tray, R, Soe.
S.oluy, 127, 177-187
Ropinsoy, A. MURRAYJONES, Si, Siiimibko, Suv. a
WaACh. NM, (2003) The Pneounter 2002 Expedition to
the Isles of St Francis, South Australas Formation of the
ishinds. introductory Warrative und wiring conservation
recommendations, (Aid 127, 69-73,
SHEPHERD, S.A, & Wonnrksiiy, HOB. S. (970) The
sublittaral ecology af West 1 South Australia, 6
Environmental features and algal ceolauy. (hie 94, |O4-138,
& (197 }) Pearsou Islunu
expedition 1969 7, The subtidal ecoloey of henthie alae.
hid, 95, VSS-107.
& (1976) The subtidal algal and
seagrass ceolozy Of SU lrancis. Ishind, South Australia
{hick WOOL VF 7-19 1
Wommisiey th BOS. cosy The Marne Benthie Flora at
Southern Australia. Part (Govt, Printer, Adelaide).
(1987) “The Marine Benthic Flora of Southern
Australia, Part I (Goya, Printer Adelaide),
(994) The Marine Benthic Flora of Southern
Australia. Rhodophyta ~ Parca” (ABRS, Canberra).
(1990) “The Marine Benthic Flori of Southern
Australia, Rhodophyta - Part TER? (ABRS, Canberra),
(1998) “The Marine Benthie Flora af Southern
Australia. Rhodophyta ~ Part HC’ (Dept. bay ionnent,
Hertawe & Abornginal Aifiirs & State Herburnim of
SoA. Adelaide,
_ — (2003) “The Marine Benthic Flor of Southern
Australia, Rhodophyta» Part HID" (ABRS, Canberra)
THE ENCOUNTER 2002 EXPEDITION TO THE ISLES OF
ST FRANCIS, SOUTH AUSTRALIA: STRUCTURE AND
PRODUCTIVITY OF BENTHIC MACROALGAL COMMUNITIES
By DaAvip J. TURNER! AND ANTHONY C. CHESHIRE”
Summary
Turner, D. J. and Cheshire, A. C. (2003). Encounter 2002 expedition to the Isles of St
Francis, South Australia: Structure and productivity of benthic macroalgal communities.
Trans. R. Soc. 8. Aust. 127(2), 153-166, 28 November, 2003.
The structure of macroalgal communities at the Isles of St Francis, South Australia, was
examined at a series of sites across a range of depths and wave exposures. Data were also
collected in relation to the light environment and optical properties of the waters around
the islands as a basis for modelling the primary production of these communities.
Key Words: Macroalgae, community structure, primary productivity, canopy stability,
alternative stable states, temporal comparison.
Trance of thee Mevel Seer eS. have (2004), 122). 5-166.
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA: STRUCTURE AND PRODUCTIVITY OF
BENTHIC MACROALGAL COMMUNITIES
by Davin. L, TERS AND ANtHomy ©, Chbsniki
Summary
Newt Dod ane Cresiike, ALC. (2003. Encounter 2002 expeditian to the Isles of St Francis. Soully Avstya lieu
Siruviure dnd proddeavity of benthic macrodival communities dramas, RoNac, So lis. 1272) 153-160, 28
November 2003-
Thestruclire of miteroalgal communities atthe isles af St Francis. South Australi was exanied al a series
oP Stles across a range of depths and wave exposures. Dati were alsa volleeted.in relition aa the tinht
environment and-opheal properties of the waters araund the ihinds as a basis for model the primary
praduchon of these canmunities,
Macromlgal communities comprised canopies tab consisted oF multiple piseeat low densities bur were Lypeuitly
dominated by gesingle genus (Ee kone radian: Sevtethaliavdarvcara. Sarasa app. en Chsteptiona spp.) il
higher densities, The composition of understorey assemblages differed depending upon the species: thut
Hominated Th the canopy, Dietyotalean alee were ty pacally associated Wilh Surges spp, or Cysrepheora spp.
Whereds falivceous red sind browa uluae Were Wore allen associated with Sereda dervecaien Ryttania-
dominuled communities were depaypente in leriis ol understorey taxed wad had a reduced overall diversity
Proguetwity af these communities was modellect with the model developed hy Cheshire and Wilkinson (1991)
and parimeterised with data obnaned curing this expedition. The model predicts bigh levels af primary
production (upto tl ge Com do) for these communines mshallow water sith rates of production decreasing
With mercasing depth. Phe net 24h compelisation depth as predicted to vary bebween 17 and 43 im dependine
On local Water turbidity. This result ay hireely consistent with observadions on (he aetual disuibution of algae
over depth in the waters surrounding the istinds.
The development and mauntenunce of hese conniinines are discussed in teriiis OF model ofalternutive stable
stites in algal CoMMunTLy strieture an OF processes leading to state changes fhraugh line
Ry Wonps: Macrodiae. comunity Siructore. primary productivily. eanopy slibility, ahernarive stable
aliles, Leni poral comparison
Introduction
Mitcrowlgul communitios along Australias
southern temperite coasts are renowned for their
high diversities (1155 species) and levels of
endemism (Womerstey 1990; Phillips [948).
Importantly, the high diversity af subtidal fucaid
species throughout this region and the Suet thal
fheoids frequently domimate subtidal macroalgul
communities make them unique i comparison with
most other regions of the world.
The Great Australian Bight region is dlsoan area ol
broad vonservation significance and, becatise of its
near pristine state, provides a basis for reference anil
comparison of great iiiportance to scientific
research, Mucroalyal communities around Si Francis
typily these southern Australia systems und, heme
remote from developed areas. they are likely to be
represenkilive of how these systems would yppea in
te ahsence of human impacts,
Depuitent ab bieronmental Biglowy. University af
Nalelaide Adelaide ‘Sontl) Auseailin SOS) \usinaha baal:
shave Harneriesidtelaide Gal an
Vquote Seioriges, South Austialin Rescardl aid Dewdopmen
Sistas, PO Bos 120. Henley Begel. South Nustiailia 2022.
Australia
In both temperate and tropical svsiems macroalpie
ure important as primary producers (King &
Sehrannn 1976: Kirkman 1984; Larkund 1986:
Hateher ef ah YOST) Tun ered L994: Cheshire er el.
1996: Sehallelke & Klumpp 1997, Westphalen &
Cheshire 1997) and make a major contribution te the
provision of a complex habital for a host of
ussaciated plunt and animal species (dwar 1987.
bdgar 1990: Martin Smith 94: Davenport ev af,
1996, 1999),
Reefs in shallow (30 in depth) coustal systems ol
southern Australi tend lo be yisually dominated by
brown (phavophyceun) algae (Shepherd &
Womersley }970, 1971, 1976, 198): Shepherd &
Sprige 1976; Schaltelke & Klumpp 1997) but the
rhodophytes and chlorophytes make we major
contribution to many communities i terms of
species diversity (Shepherd & Womersley 1970:
1971: Underwood ef af 199)) und sometimes
dominate communities in terms of abundunee.
standing crap biomass or productivity.
Mucroalgal systems are often deseribed as being
essentiully a mosiaie el patches (Dethier L984: Sousa
1984+: Underwood etal 99) Menge ef el, 1993,
Turner & Cheshire 2002) driven by a complex suile
Of processes, including photosynthesis. vrowth and
\Sa DO TURNER & AC. CUPSHIRI
romputition. These pravesses are ii dunn in liencesd
by abiotic factors (including light aind waive
exposure) as well as biotic (sg. ghazer abunince,
shinding bianass) (hal jogether bring about the
Pest Mn’ COMMMILUTTLY struetire,
Previous work fn southern Australia has
denronstrated a pallern of gonubon 1 lenis of algal
{ortacross pradients of depth and exposure, both on
exposed coasts (Shepherd & Womersley 1970, 1971.
1976, TOS) and ty the more sheltered pulls
(Collings & Cheslirg 1996). Exposure crcomnprisses
usuily of Hrewrs thar change alone (he wuye lorce
gradient (Cousens 1982), iheluding mechanical
forces, turbidity and gas exehunve. As such,
exposare has been implicited as a niyo process
Sirueluri murine systews (ew. Shepherd &
Womersley 970, 971, 1976, 1981. Underwood ef
i! 1991), Pwo significant efftets of inereasmg depth
are the reduction in ayave cnerey, along, with a
reduction i the quality and) intensity oF light
avarkible fo photosyathelic organisms, Both these
factors have The capacity to influence mies of
primary production in macroalysl conimunities, ited
lead 10 questions about how species composition anid
broad community structure translate into overall
COMTITTUNLLY, prodotivity,
To dale, few studies have altenpted to quantity the
primary production af — colire macroulsal
commilnitics. With the exception of work by
Cheshire ef af (1996), ost previous wurk hus
focused an the productivity of single species that are
lepresentative oF piven strat (eg. canopy,
understorey) withih communities (Tuteher ef af
1977, Murase ef d/. 1989; Caw 1990: Lewitt & Bolton
YO; Schaticlke & Klumpp 1997: Hotehkiss 20008:
Pairhead 20014; Copertinu 20027).
As a general rule i appears (hat produchivity, at
last on an areal busis, is hugely independent of
chanses in COMMUNIEY structire. However, there ts
sone wyidence (hat assembluges dominatad by
Leklonia paeiata ay particular, are relatively mare
productive than otters (Cheshire ef al, (996:
Fairhead apoemd. Overall, rates of prinuaty
production in mucroalal communities are broadly
comparable ta those in many highly produetive
Hotelikiks. $1. (2000), Compiisen of the deppuraplics of ines
specee el Cysuphoci. PhD Thesis, Deparinientall ayvireniinenital
Biilawy Lriyersinya Adetides
Haurhead, YoAL( 2008). The chaplivailony andl pridacdon cooly
abihe kelp Eck lonig rdunta (C Agar) J Agaedhi i West lst,
Sonth Australia. Ph Thesis. Bepaurtmunt ob bivinduenentat
Hilouy, Wriveraity al Adketaite.
Copenina MM (2n02) Prodiehon ceoloyy wid conphysiglogy of
fir) alwal comnmunilies. on stemperate reel (Weal betel. Sout
Australin) PhD Thesis Depurtiianit al btyviraninental Hila,
Lriversiyeal! Adieinale
Pierer, BOE (1905) A cori panitivas stich: of dosivdetive ane may
destTUELiVe SUMvey lech iupies yr ae on rit rvalgead Sysleins,
Hanns Thesis. Department of Batuny. Crivertity of Adeline
terrestrial] ecosystems such as cereal erops (Zelteh
1971) Typical production rates of Slo 6 eC. nd!
(1 to 20 ke me y lof wet biomass. Cheshire er cf
I%6) are common tO both temperate and tropival
henttric algal systems (Hateher etal 1977: Round
JOKL: biker & Arnold 1982; Klumpp & MeKinion
1089) fy weneral terms this: productivity equates ta
an annual (uthayer of up to seven times the standing
biomass and provides the basis for a large flow of
organic varbou from the algal community to
ssociaed reel biot (Cheshire ef a L996),
The anns of this paper were:
1. To deseribe the macroaleal Community Sirieriine
of the Isles of St Praneis in relation to both depth ang
EX POSHPC.
2 Tu esninate primary praduchon ol these
macroulgal communities using a& model of depth
relied production (Cheshire & Wilkinson 1989)
parumeterised with dats on algal comnmniarty
struchire, weiter quality and photosynthete yield
obhiined during the expedition.
Materials and Methods
Sindy Site
Fieldwork was carried oul around the St branes
Isles (Vig. 1). Productiviry modelling was [rth
palameterised with da obtained from West |.
Vielor Harbor (VIL.
Shepherd & Womersley (1976) identified a wave
force gradient around the Isles oF St Francis, ranging
Jrom sheltered to exposed. The elfeet of depth and
expostire wis mvestigated ian orthogonal sampling
progrint covering two depths (Sand 10m) and four
exposures mamging from sheltered ta ryoderately-
exposed (scase Shepherd & Womersley 1976),
‘To accommodate natural variability, surveys were
undertaken ala number of sites from four ishinds.
und separated by distances ranging [rom at lew
metres up to several kilometres (Pig, 1), daocal
Weather patterns atthe Une of the expedition Tinted
uccess Lo sampling localities and ovade it impractical
to sample the more exposed sites, especially al
the shallow dept (3 ans however we did survey
one exposed site nl depths of TO and 26 inj these
data have been inelided for comparalive purposes
(lable |).
hield Survew Methods
Macroalga) community sampling was earned at
on SCUBA using the Line Intercept Transect method
(LIT. Turner }995°: Millerefaf M998). When ased in
a naeroalyal-dominated system. LIT 1s a simple
technique employing a Weighted staintess-smel ruler
following a franseetguideling (Turmer ap.ciry. ln this
stidy.a 20 th guideline was laid, starting ata runlom
point und following the depth contour Divers
ALGAL STRUCTURE & PRODUCTIVITY 155
Nuyts Archipelago
South Australia Lp FREELING I.
€)
ARI.M ae
PAM PRL Readinys
Readings —— 35 DOG I.
WESM
Video footage
Diurnal Light Readings
ST FRANCIS I.
Key to exposure
@ Sheltered
m@ Sheltered — Moderate
: A Moderate
Direct @ Moderate — Exposed
Light Readings
MASILLON I. N
FENELON I.
Kilometres
Fig. |. Map of the St Francis Isles, showing the sites surveyed and their exposure to swell. See Table | for site codes.
followed this guideline and placed the weighted ruler then recorded on waterproof paper. At the end of
by quickly lowering it onto the substrate, effectively each metre the ruler was moved along the guideline
pinning the sessile community, Organisms directly and repositioned for the next segment. The method
below the ruler at cach point along its length were was accurate to ~ 3. em. A more complete description
156 DJ. TURNER & ALC. CHIESUIRE,
Tagip |. Brief uevcriprion of suvev sites and survey eept tin). L—exposed: Momodergte: 8 selterce.
St. lrancis 1, Petrel Bay South West: As above except that the depth is about 7m.
St. Francis L. Petrel Bay Sauil Hast: Slaping rocky phitlorm feaibout 15 ny depeh
St. Francis b.. Petrel Bay Novi hast) Stoping rocky platform qlown fo about 2010
St. Feaneis bh, Arnokts Leap: A steeply sloping cli levelling out al 23m. and
Site [Xposure Depth Deseripiiun of the site
PNWS 5 + 7 SL. Francis L. Petrel Bay: North West: Gradually slopiig rocky boulder platfaom
down to sind at about 15 ni, Fine sedimen! cuyers the bret.
PSWS 5 5
PSEM S in
Less sediment than on the western side of the pity,
PNES StuM 5
Leas sediment Hii on (he western side of the bay,
EBES SiuM 5 St. Praneis 1, East Bay: Sloping boulder tabitat to Sm.
PNM SiuM 12 St. Frauteis b, Metrel Bay North bast: Site helow PNES,
FROUS M 7 Preeling Li bhit rocky floor surrounded hy providing rocky oulerops,
WESM M WwW Wert L (Nuvisy) Densely vegetated rocky slope to 13 i,
ARIM Miak Ww
slopiig dawn again gradually,
ARID Miwuk 2 As above, except deeper,
Ault 2. Description ef lifelarue codes asect far Ne sheers.
q} p
Lifeform Code Deseription Typieal taxa
BREOLI Brown foliueedts algae Halnpteris, Aeroceanpia
7PL Browiy Dictyotaloan algae Zonarin Puidina, Loboptiore
CORAENCR
CORAFOLI
RING Red cherustiig Maas
RPOLI Red folineeous ahise
TURE All turt algal species
othe method ean be found in Miller ev al (1998),
Two LIT transcets were assessed at cach site with
divers recording taxa to the highest resolution
possible #7 sis, For the larger more common forms
this was venus or species: however, lor some of the
more problemiutical specimens we used wv lile-lorm
level classification (Table 2). A tallalgal species list
for the St Francis Istes is wivern by Womersley &
Buldeek (2003).
Remote video transeets were used to qualitatively
estimate macroulyal cover at deeper water between
§) Francis und Dog Is (Fig. 1). We suspended the
video camera from the research vessel to just above
the botiont and recorded for one minute. While this
information provided a lower resolution than LEP
data. it roughly indicated algal density and
vonfirmed the presence of easily recognisable taxa,
For parameterisation of the productivity model,
ight meters (LICOR quantunt sensors) were set up
on St Francis |. fo Measure 24 h irrudiance ub 6
minute intervals ayer four days, To construct
utenuation curves for Tight over depth,
INeasurements (using LICOR) were mide at 2 10
depth intervals from the wader surlice to the seabed,
or (a 40 m depth, whichever oecurred Arst, at two
locations near Masitlon |. (Pig. 1), Data from
multiple profiles ineasured over a 2h period were
vombined into a single estimate of atrenuation.
Red enerusting coralling dlgac
Red Mlaceous coralline algae
Speralithoy
Coralia, Cheilasporuni
brerustine coralline alae
Placaminn, Plaicelocurpus
Hermes, (ladephora
Additionally, while making measurements of i
sity photosynthesis, light data were collected over
the depth profile with a meter built into @ Pulse
Amplitude Mudulated (PAM) fluorometer (Walz.
Germany). Light readings were taken at regular
intervals by divers whilst making, measurements on
plants from 25 m depth to the surface off the west
coasts uf Dug 1. and St Francis |. (Pi. 1),
Jdentifvinn Siruehive within the Meteorol
Comunity
LIT data for all samples were divided into Lm
seaments. and these segnients were grouped by iis
nicans cluster analysis in order to identify eroupings
of common taxa, The resultant groupings were
evaluated ound diversity indiees computed
(Shannon's /7', and Pielou's 2"). The ehoiee ula t-m
segment its the “standardised sample unit’ for these
unalyses has implications for the interpretation of the
data. Por example. measures of diversity will be
linked to the spatial scale of the sampling anit (with
Jarger units ucnerally encompassing more species),
The use of a l-m segment was. however, deemed
uppropriate, based on previous LIT work where
Turner (up. cit) demonstrated (by u seminvariince
analysis) that the scale of spatial independence in
macro-algal communities at West 1, (VET) was
genenily ~ 40 em. However, significant interactions
ALGAL STRECTURE & PRODUCTIVIGY ist
within communities (cgnopy havering, dispersal and
competition) may oecur al the sub-metre seale
(Schiel & Posier (980: Kendrick & Walker 1004),
LET pereentave cover data from all sampling
locations Were compared vistally with a non-
parametric MDS bused on a Bray-Curtis similarity
muatrs (Bray & Curtis 1957). Phe influence of depth
und exposure was then tested using two way
hieroril non-parametric MANOVA) (Anderson
2000) with both Ticlors fixed and orthowonal (the
exposed sites nt Arnold's Leap ARLD & ARM,
were excluded). Data Tor this analysis were obtained
hy randomly selecting 18 }-ny segients of the LAT
from euch site,
Modeling Pein Prediction within we Spr
The model used in this study was developed by
Cheshire & Wilkinson (1991) te estimate
productivity over depth Tor phototrophic sponges
and corals on the Great Barrier Reef The model
Invorporwles ay equatiol whieh defines the chiunge in
light over the course of the day: A sub-model whieh
describes the relationshay between leht cane
photosyiihesiy (he Pl curve), is then used) fo
calculate net 24 h primary production by mlegratie
the PP cutve against the lh field over a 24 b period.
Net 24 b production, calculated fora typieal day (in
this case diving February). ts
the produetivity wodel iyolyed (he use of data on
algal comimuniby structure and addilfonal data
periaining te Hight and water qaulity (described
ubuyey,
The light sub-tnodel used a sime-squored funelion
(.quation 1) to ealoulate sunfaee iradianee (/,)abany
given Time daring the diay based on iwo purimerers
Davienuih and 7. Light over depth, was then
estimated tsitie a model for allenualion (Equation 2)
Which predicts the Hight intensity Gy) ubany dep (c/)
albany time (7).
Equation |
at) en Jain | ined
TV Davleneir
Lyuation 2
i, Ae pho
Where 2 is the doliber of hours since diayn, 2 is the
elt intensity al Gime dé fay is (he halt intensity at
solar noun and Puv/eaedr is the number of day livin
hours (period front dawn vo dusk). Surmlarky, of is the
depth beluw the surtice (aretres). Jy as the tight
Intensity at depth afand time ¢ A ps the attenuation
coelliaent (i) of the water body. Both surlice
Inmadivnes dine atlenoation were paratheterised using
indivuive uf
peoduchon rates darn Suiner, Parameterisation of
datly data measured in the field aver the vourse of
ihe expedition,
The photosynthesis sub-model uses the exponential
Hunction Gissby & Plat) 1976) lo model photo-
synthesis in response to the stumdardised lhe eld
derived from. the light sub-model (Egtution 3), This
model uses (wo photo-kinele parameters, Pur,
(maximal gross pholosynthelic rate at saturating
light intensity) and Z, (sub-suturating leht intensity),
lo calculate instantaneous gross production at any
Hight imwensity (7). A third parimeter (Ref - dark
Pespiration rate) is used to calculate imstaniancous net
production. Photo-kinetic parameters were ablumed
from work at West, (VIL), summarised in Table 3 on
mixed algal communities (Cheshire ex af 1996),
Lekloria (euirhendt ap.cti). lurt algal communities
(he vommunilies without a eanapy CCopertine
pei) and Custaphora spp. Cl Kildea pers,
comm.) In addition. biomass. data trom Nuyts
Archipehigo (Shepherd & Womersley 197) were
used to calibrate values for local eommiumities (Table
4). Culleenvely, these previous studies cover the
photophysiology ofa rings af key speeies ti relation
to Tight cnvitonment. depth and season,
Poation 3
4
ft, Pim vay Ril
These studies provide an uinpinicul busis for
charietorising, the velationships between the photo-
kinetic parameters and the ambient light field, using
{he approuch adopted im the origimil model by
Cheshire & Wilkinson (L991) where the photokinetic
parameters (PRP) were reported to charnue
exponentially over depth in proportion to reductions
Lo. Caximuo Heht intensity at salar noon) The
general form ol the cyuatian as:
Pquation 4
PRP © geyll ton)
Where PIP ts:any af the phato-kinelic parameters
(Miya. Hh ur Ref) ail J), 18 Whe maximum fight
MLOMSILY alt saline noon, The paraineters Go and pb are
Constants, derived cmiprriewily from the dula. These
consiinis provide ua quantituliye measure of the
change th the photokinetic parameters with chanves
in maximum tight inivasity (4. Parameter values
derived from the above studies are summarised in
fable 5,
The photosynthesis sub-model iitewrimtes (he P]
vhirve agaist the light linetion (using 1S minute
fie steps Tiroughoul the diay) (ies providing a value
for net 24h production for a ‘typical’ day: in any
eryven month,
158 D.J. TURNER & A.C, CHESHIRE
TABLE 3. Summary of relevant photokinetic and environmental parameters fram West | (VH), South Austratia.
Source Re =
= >
= = et <i = = 7
= a Fe = By 5 3 =
im “+ = S > a a = =
3 g = SI = = = u in
2 z z z z = 2 2
5 S 1 oa. Ss T— —s = =
o o is = & Z o G
Sampling Years ]99R 199% 1998 1998 L998 1997 1997 1992 }902
-2000 2000 -2W) -2000 -2000 -2(101 -2001 -1996 -]996
Depth (m) 4 10 4 5 10 3 4 5 5
Water lemperature °C 19 19 20) 20) 20 TR-20 18-20
May light solar noon 658 153 674 40) 3
Limol photons/m/s
Day length (h) 13.2 13,2 1332 13.2 13,2
Pm
iiss % 53 7A 4S 4,2 (i. 5 ( 5.
meO./gDWT/h : at i m » »
tk 175 170 16] 131 107 164) 1360213 206
Lunol photons/im'/s
Rd x4 ON i 0.7 0.5 0.67 (0.61 O88 0.72
mgO,/gDWT/h
Biomass: 21 21 O11 804 535 750 750) 500 500
eDWTin
Modelled NPP 657 69 3 45 7 19 44 39 32
mgO,/gC/d
TABLE 4. Smumary ef environmental parameters fram St Francis ites’.
Biomass Biomass
Exposure Depth (m} Site / Location gm g.DWT.m -
Sheltered - Moderate 6 St Praneis site C 4290) 715
Shelteted - Moderate 13 St Franeis site C 6020 HOS,
Sheltered - Moderate 19 St Francis site C 4151 691
Sheltered - Moderate 20 St Francis site C 4441 740
Moderate 6 S! Francis site B 3410 508
Moderate 22 St Francis site B 4070 678
Moderate 32 Si Francis site 3850 641
Exposed 6 Si Francis site A 4650 775
Exposed 13 St Francis site A 3845 640
Exposed 35 Sl Francis srte A 3098 Slo
From Shepherd and Womersley (1976)
Tanti 5. Parameter values for equutions eluting changes in photokinetic parameters (IK, Prites,., ane Re} to maxinnin light
intensity at salar noon Cyacd-
Parameter o p R
Ik 92.6 1.001 O.7517
PrMgjis: 3.49 (0007 O.8459
Rd 0414 0,001 0.7220
Results were cach clearly dominated (in terms of percent
Structure within the Macroalgal Community
NAruRArL ASSEMBLAGES
Five algal assemblages were identified using a K-
means clustering algorithm. The first of these
represented a low-density, mixed assemblage
(referred to as VLA - Variable Low Abundance.
Turner & Cheshire 2002). The four remaining groups
cover) by one of four common genera of larger
brown macroalgac present m the study area
(Eeklonia radiata, Cvstophora spp., Sargassuit spp.,
or Sevfothalia doryearpa). In addition, each
assemblage comprised varying amounts of the other
taxa (Fig. 2).
The highest patch diversity was recorded in
assemblages lacking a clear dominant species (VLA,
ALGAL STRUCTURE & PRODUCTIVITY 154
Cystophora Assemblage
i} 48%, SE=1.59
a 70
8 15
= io 2
aa Li Lh ee |
ao
a =. ff | oa _— 4
3 Ber Fe S&S ww BOs Eewy ul
eo 6S & & z= 5S me & &
Esz2zRPesgetegRan
Sees eR gS" 2 85 F
Ser gen ee oe
9 5 6 & an 2
o
Sargassum Assemblage
f2%, SE=1,43 []
5 20 62%, SE=1,43 []
§ 15 |
7 |
eg
CU ~
a ee ee =-_ =
a &ereiauas,r ®@ Pp GB OBS ESBLB et
a8 SS2 5 eR BZ 5 gee SG
Tse eaere eevee ges Pp
«zw t § G Se £ g = F
sos €Ru se eg >
g 6 6 “ 6 on
Ecklonia Assemblage
YT 61%, SE=2.18
3 20)
3 15 |
oO 3
- 10 | i
Be |
5° _
a o-@,- =.=, oe a | Z| -
535 S$ eg 5S mw k&epeeteoasa &e ous
a 6 aR = Gee 2 § Se@
2es2Pfseeaege258
gu tenes § © e& wear
eSeh ea 4 ¢ 2 3
6300 + +a Go
ra)
Scytothalia Assemblage
ry “3949 7
5 20) 57, SE=3,.42
>
& 15 -|
sail
= 10 |
el |
a
a — ia. = q -_
a Cases & «PG OS EBU A
SEBS EE SESS ERE GE
eeseetse &£suspaw & FED
feat ot FS bs Ske eer
"og RF a" GE so
aq60 6 fal “a a
3
VLA Assemblage
g 70
§ 164
Poll 1 :
Oo
= 4 a. = Ba la L
5° 8es 7» f eo Zu
sf&SoeEEeEELS Sea ee
ot2z2ue § FS eFeBPwke F EB
Ba BSR RET eR BEE
cf FS BUM BE eo
go 5 a he a a
Viz. 2. Mean percent cover of taxa and life-forms associated with the four groups dominated by a phacophyeean genus and
the VLA (Vanable Low Abundance) assemblage, Error bars indigate standard error of the mean. Lale-forms (Table 2)
are In upper cise.
MH = 0.992. J° = 0.865), Cenerally speaking. VLA
assemblages comprised a range of different taxa in
small proportions. In contrast, patches dominated by
a single genus appeared to do so ut the expense of
other taxa. OF these, Cpryteplorg-dominated
communities maintained the greatest diversity of
other laxa (//° = 0.877, J° = 0.766), followed by
Sevrothalia (H’ = 0.754, J’ = 0.658). Sargassum (12
0.608. 2° = 0.531) and finally Beklonie (1
0.582..7° 0.508, Fig. 2).
Follaccous algae were common in the presence of
Seviothafia (Spearman p = 0.3689, P = 0.0001:
Kendall t= 0.3329, P= 0.0001) while dictyotalean
species were more abundant in the Cystepharea (p
O.1430. P = 0.0103; t = 0.1145, P = 0.0114) and
Sargassum (p = 0.1470, P= 0.0084; t= 0.1144. P
0.0101) dominated communities (Fig. 2).
The Effeet.of Depth and Expastre
Algal community structure changed in relation to
both exposure and depth (Fig, 3). The Sareesseen
assemblage was found frequently at all sheltered
sites but seldom elsewhere (Fig. 4). Conversely the
number of |-m LIT segments dominated by Eek/onict
increased with exposure. vel were nol common at the
most exposed site where Sevtotialia dominated (Fig.
4). Sevtithalia was absent from the more sheltered
sites, bul 1 om patehes containing Crstephoara-
dominated assemblages were recorded at all sites.
Inside Petrel Bay. Cystophera assemblages were
most frequent at the very sheltered sites. yel were
also in abundance outside the bay under moderate
exposure conditions (Pig. 4).
The non-parametric MANOVA (testing for the
effect of depth and exposure) revealed that between-
nei) DJ. TURNER & A.C, CHESHIRE
Stress = 0.16
APSWS FBES /
prws oS PRES aves
A one I
tu. ¥
APSEM hie s
gem SH =
ay e
9! PRCS >
; :
ARLD
‘4 +
Bx
“Posy,
Sure
Exposure
A Sheltered
BW Sheltered Moderate
@ Moderate
gre @ Moderate Exposed
Fig. 3. Non parametric MDS plot of nine sites. showing
distinet exposure and less obvious depth gradients,
Sargassum spp.
60
40
20
i)
» Cystophora spp.
60
40
0
6 Ecklonia radiata
30
40
20
i
60 Scytothalia dorycarpa
40
20
0
sf nonns Aas
geeR2 Re hae
a a P a a2 Wo ou = <i<
Sheltered —————————_ Exposed
Hie, 4 Plot of mean percentage cover of four asscniblase
bynes at sites ordered alone the wave exposure gradient
Site codes are from Table |.
sile differences were sizniffeant (interaction between
depth and exposure; Fs, yy. = 42622. P — 0.0010)
ElTeets of both factors were also found to be
significant, using pair wise a poster/or! comparisons
Panic 6, A posterior’ fesis fafier re NPMEINOPAD
investigaling the jifluence of dept and expose on
commit composition. Expasires range fron ss
sheltered tn Al = inoderate.
Ciroup T P Pp
Tests on exposure willin the S metre group
S with S-M DAF 0.0016 0.0096
S with M 4.078 O.002 U0014
S-M with M 2.061 0.0024 O41 20
Tests on exposure within (he 10 metre group
S with S-M 1.606 OO1)S 0.0236
S with M 4.643 0.0002 O00T4
S-M with M 4.033 0.0002 O.0014
Tests an depth (5 -- 10m) within exposure
Within shellered ).519 (0544 NS
Wilin S-M 1.938 0.0060 O.01T 80
Within Moderate 2.275 0.0036 0.0144
Modified [
Legendre & Legendre |99.
values for multiple comparison based on
(Table 6): the only exception was a non-significant
difference between depths within the sheltered
treatment.
Productivity madel predictions
Light intensity, termed PPFD (photosynthetic
photon flux density), measured during 20-23 beb.
2002. changed diurnally, according to the sine-
squared function (Equation |; Fig. Sa) used) hy
Cheshire & Wilkinson (199); -= 0.9985; Fig. Sb)
This level of concordance, however, varied with
cloud cover. and there were periods when the values
were somewhat elevated relative te the model
EXPEClalions,
Livht attenuation varied between sites (fig. 1) and
over time. but values were well within the range
expeeted for waters in this region (Table 7). I
general, the lowest values (0,111 — 0.136) were al the
aceanic or wave-exposed sites off Dog and Masillon
Is, and the highest value (0.207). indicating the most
turbid water, was in the bay at Masillon I. (Fiz. 6)
Daily net primary production was predicted to be a
muximun of 1g C. m= d! am shallow water
decreasing over depth to reach net 24 h
compensation at depths of between 16 and 43 m
depending on turbidity (Fig. 7) Net 24 bh
compensation was predicted to occur at~ 16 mdepth
in more turbid coastal waters (K 0.21), and
between 32 and 43 m depth in clearer oceanic waters
(K = 0.08 — 0.11) (Piz, 7).
Discussion
Macroalgal Strucinre
Macroalyal stands are not uniform in space. but
rather represent a mosaic of patches (Dethier 1984:
Collings. vp.cit.), each dominated by a certain life-
ALGAL STRUCTURE & PRODUCTIVITY lol
Surface PPFD
2500
)
‘w 2000
im
Ss
1500
Surface PPFD
(umol photons m
a ro)
8 8
Oo
Day 3
Solar ‘Time
2500
.~2000
x)
c ow
a © 1500 y= 0.9996%
BS R =0.9985
ge
a4
= = 000
iS
=
(0) 500 1000 1500 2000 2500
Measured light (mol photons ms’)
Fig. 5. A: Plot of measured light (PPDF) through time
recorded 20 — 23 Feb 2002. B: Plot of measured values
vs those calculated with the productivity model.
B00 ® PAR West Coast
ap 500 PPFD(0enin) = 937.¢ (0.1924 x Depth)
aE don 20.9462
gs G@ PAR Dog Island
4 300 PPED(veptn) = 220,¢ (01112 x Depth
wn pes e
ae St r? = 0.9276
100
0
5 10 15 20 25
Depth (m)
Fig. 6. Plot of attenuation of light vs depth, both measured
with the PAM fluorometer.
form, such as a large brown macroalga, a turfing
species, or animals (e.g. urchins or mussels). Most
South Australian reefs are dominated in the euphotic
zone by large phaecophycean macroalgae in species
assemblages persistent over time (Shepherd &
Womersley 1970, 1971, 1976, 1981; Shepherd &
Sprigg 1976; Collings & Cheshire 1998).
Slightly turbid coastal water - K=0.21
15
05 10 15H 80 35 40 45 50 55
15 Clear oceanic water - K=0.11 1500
1200
05 10 15 20 25 30 35 40 45 50 55
Net 24h production (g C..m?.d")
15 Very clear oceanic water - K=0.08 4500
o
=
(,-S*z-WW’SUO}OUd JON) UOOU JeIOS ye Xe]
05 10 15 20 25 30 35 40 45 50 55
Depth (m)
Fig. 7. Modelled net 24 h production over depth.
Compensation depth is the point where net production is
zero is predicted for water of different clarity ranging
from 0.21 (turbid) to 0.08 (very clear). Solid lines
represent 24 h production while dashed lines are
maximum light at solar noon.
Groupings identified in the current study suggest
that patches of macroalgae occur as either VLA
assemblages, with relatively low densities of several
different canopy-forming taxa and other species, all
in relatively low abundance, or as stands largely
dominated by a single genus with a lower overall
diversity (Fig. 2).
The structure of macroalgal communities at the
Isles of St Francis showed predictable changes in
relation to both depth and exposure, consistent with
current knowledge of the ecology and distribution of
the dominant species (Ecklonia, Cystophora spp.
Sargassum spp. and Scvtothalia) elsewhere in
southern Australia. Overall, more exposed, and often
shallower, sites tended to be dominated by Ecklonia
or Scytothalia, whereas less exposed sites were
dominated by species of Cystophora or Sargassum.
Notwithstanding this generality, the communities did
vary substantially both within and between locations
in relation to the complex interplay of ecological
processes that act to structure these systems.
hod DoS, TURNER de ACCT DESHI
TAQ) 7 hale of ettenition cocsficwmn, | tieaxareit ut
four Sites ut St Mraneis isles,
Vovatiat Depth ranve tin k
West canst 75 = Surlhee (324
Diet 2a Suelhee OAVL2
Deep wale ofinon Massillon). 40) Surliee 0 1463
ln he bay at Mandten [0 Strtiee 1.200
Disiibution of Assemblages accordine to Depth and
haposure
Two factors known lo alive compnunily
composition are depth and exposure (eg, Shepherd
& Womersley OSL) Kiki & Meluchlan 1989). Site
exposure Tiiuenees The aMOUNE Of water MOVEMenL
experienced avilhin the focal environment, having
both direct (Qs, physieal lores) and indireet eflects
(cu, level of sedimentation; Cousens 1982),
Community composition al different sites pestilled
iat clearly identifivhle transition from sheltered to
exposed on the MDS ordination (Pig 4). Sangesnnin
comomnities dominated ussembliges atthe shelteree
sites, Beldonion al Moderate sites, and Sevtorhealia at
the must exposed sites. Tn comlrusl Cys/oplerc wits
found throughout the study area (Pi 4) While
Sevletialia has mainly been reported in rough water
vonditions (Womersley 1987), Bodfenia is dominant
oat wider range of conditions (Shepherd &
Womersley 1970, 1OKL Chout & Sehiel 19K2:
Hateher ct ah VORF. Karki PORO: Collins &
Cheshire 1998), implytng that its current distriburon
is narower han its identified potential, aad that itis
possibly influenced by the presenee of the ofher
cullopy-forming dominants. Both Clyfepiare spp.
fm Suveawee spp. Wnhabit a yanwe of depth aod
exposure regimes. although individual species lend
ty inhabit uo smaller range Cotebkiss ap. cin
Shepherd & Sprig 1976).
Waye chery (8 attenuated by inereasing depth
(witht Fle winer movement at depths exeeeding one
half the wave lenvths Suimieh $992) and depth alse
influences Hight availability through giteruation, (is
therefore nat surprising (hala significant intertetion
benween depth and exposure was iWentified during
(he pon-parunetric MANOVA,
The effect of depth was less obvious on the
ordination than lorexposure (Fig. 3), However, tests
beiween 3 and }Oenr sites demonstrated a significant
difference fir overall communily structure (Table 6),
a Undine thar aveees well with aller studies
(Shepherd & Waimersley 1970, 197) 1976. 198Ts
Shapherd Ac Sprig 1976; Cullinane & Whelan [9% 3-
Sunderson & I horias 1987) Andres & Witnun 1995s
Kim & fee 19S), Th this study, individual
Cobliies: Gr ChW86) Spanolemiporma wirrihion Ob tacisalal
coiiinities cl aauthern Thandie Peniisiila Sanihe AMtstrabry
Hh Pe then. Dep al Botiiy, | ivwesby of Adutiides
ussemblages were vet exelusive to a particular
combination af depth and exposure, indicating that
euch assemblage ts able lo survive aver Urabe al
covirooment (Pig 4b. While browd seule
civiruninental faecturs aie portant. Fier seqle
Iniences Must also be considered when examining
habitat preference. Indeed work on South Mustralian
macrontyal communitres showed that spatial
variahon with yrealest over small scales (- [Oem
Collings 19969 which probably relates to the size ul
individual specimens,
Importantly. there wis also a clear correlation
berween dominant taxa aid understorey assemblages
(Vig. 2) whieh sugeestis the significant role ob the
cunopy in structuring the overall community The
presenee and composition of tre canupy alap
nMuenced the diversity avithin the stand. sich Chak
oper eanupies (VIA) lad the Iivhest diversity anil
the broud-bladed Mexdarier patches the lowest.
AMterinitive States
An jmportint observation from this stucly is that
the sume dssemblapes cay exighoyer wide rane at
lubitits. although vlearly the relative Trequeney ts
stronwly correlated with wradiems soch as depth and
exposure (Vig. 4). A stnmlar trend has been observed
across much oF southern Austalia, modelled tn
Shepherd & Womersley (1981) who noted that
overlupping species’ ringes conrributed to the
existence Of mixed Communities.
Shepherd & Wonersley (1976) found (hat Lex fen
and Sevrotedia were the dominants ineareas of fat
energy, While under calmer conditions Cystaparia
aod Saanisia hecume more common, While Ui
was generally trae ii the current study. Ja Avene wits
rarely observed at the shallower exposed site
UArnold’s Leap. LO in). While there is no evidenge to
suvest thal the species was present at this site
Instonealy, 8 Known ta survive in sinihinly
cueruenie conditions (Shepherd & Womerley 1876s
implying the existence of other limiting fetus or
possibly (he presence of allermalive states,
Cullings (ap. o/) provided anecdotal evicerec fom
chanves between Hedlenie- sind © \y/epdienre
dominated communities at a shallow water (Sm)
coastal site Wk Cupe Tervis, South oNustratia,
Similarly, Purger & Cheshire (2002) reported danse
Shifls in canopy structure through time, linked: te
increased levels of exugenous disturbance, |lowever
these changes may also follow other natural
disturbance events,
Interestingly, the frequent siphon ab alerreeryire
panicidata in the clirrent study hut Hot Histoneally
(Womersley & Baldock 2003) mises (he possiblity
thal local extinehon am re-columsation events are
imporiint in the overall streture of the reef
CONMAUIN LY.
ALGAL STRUCTURE & PRODUCTIVITY 163
The possibilities for patches of the seabed to be
variously dominated by different assemblages are
illustrated with a conceptual state-space model (Fig.
8). In this model VLA assemblages occupy the
central domain of the state-space. With increasing
population density, assemblages in this state change
to become dominated by one or other of the “climax”
taxa, although clearly the likelihood of any given
taxon attaming dominance is influenced by local
environmental conditions such as depth and
exposure.
The actual point of distinction between the VLA
and ‘climax’ states was a somewhat arbitrary line,
identified through clustering, along a continuous
gradient. However, it serves to illustrate the concept
that through time a VLA assemblage may persist, or
progress along one of several different pathways to
reach a state where a single canopy-forming genus is
dominant.
Within a patch the chance of any given taxon
becoming the monogeneric dominant will be
influenced by the presence of recruits (i.c.
availability and seasonal timing), as well as the local
physical (e.g. light availability, wave energy) and
ckl<—<» VLA <—? Sarge
Fig. 8. A schematic representation of patch dominance. The
centre of the star is occupied by the low density mixed
community (VLA). Each apex of the star represents an
assemblage dominated by a canopy-forming taxon,
Keklonia or Sevtothalia, or group of taxa, Sargassin
spp. or Cryfophora spp., such that all axes would be
orthogonal in multidimensional space. The area enclosed
by the star represents the species” space oecupied by real
communities at the scale of the patch. Transformation
from one state to another must occur via the VLA core
and not directly between monogeneric states.
biotic (e.g. allelopathic effects, shading, scouring.
life history strategy) environment. Given the
dynamic nature of many of these factors, outcomes
are likely to be location- and time-specific (Noble &
Slatyer 1980; Seapy & Littler 1982; Posey ef al.
1996).
Once established, these monogeneric patches
appear to be metastable i.e. they tend to persist for
some generations but not indefinitely (Dayton e7 al.
1984), This process appears to be related to certain
life history strategies variously encouraging:
persistence through local recruitment (e.g. Lobban e7
al. 1985; Pearson e7 a/. 1998): resistance by means of
both physical (e.g. Suzuki et al. 1996) and
allelopathic interference (e.g. Chen & Chou 1990),
actively excluding other taxa; and resilience through
recovery from small-scale disturbance (e.g.
Kendrick & Walker 1994),
Importantly, assemblages with two co-dominant
taxa, other than the VLA assemblage, in which no
single genus is dominant, tend not to occur. This
implies that an assemblage can only transit from one
state to another by passing through the VLA state.
Such a transition can be envisaged where a
disturbance results in loss of the dominant canopy
taxon and the patch reverts to the VLA state. In this
state, processes, including recruitment, competition
and differential survival, come into play, leading to a
re-establishment of an assemblage with a single
dominant taxon.
If the nature of the local disturbance is insufficient
io return a patch to the VLA state then stable
canopies may persist for decades, as shown by
observations by the authors of stable patches of
tucotds, Eck/onia, and turfing algae at West I. (VH).
Patch size in the current study was based on |-m
LIT segments, and at this grain size neighbouring
patches within a site were often found to exist in
different states (Fig. 4). Consequently, if a larger
sampling unit were used, it would invariably lead to
the incorporation of several ‘patches’ within a single
sample and as a result the identification of
assemblages dominated by two or more genera.
The existence of neighbouring patches in different
states necessarily implies the existence of a boundary
or interface area between the two. It is in places such
as this where the predictability of future states
becomes much Jower. Furthermore, factors
governing recruitment and survival of propagules are
generally cyclical. This suggests that the probability
of successful establishment in these boundary zones
and following disturbance will change through time
(e.g. Ang 1985; Chapman & Underwood 1998) and
will be influenced by the surrounding taxa (e.g.
Ambrose & Nelson 1982; Camus 1994; Emmerson
& Collings 1998) as well as the broader
environmental conditions (Metaxas ef al. 1994:
Dayton ef al, 1999),
VG Do TURNER & AOC, CTIESTIRT
Conmmutity Change and Pradlictinity
While the dita presented above provide good
evidence for substantial diflerenees in community
stricture between sites and over time. ie ts worth
considering Whether the primary productivity differs
in dillerent systems, The model shows that while
productivity is fot constant through time, the
changes i canopy composttian have a iminnmal
elleet on overall productivity, Clearly, major changes
would occur if the communities changed from a
wleal- to animal-dominated system. as in the
development of extensive mussel beds’.
Productivity in macroalgal systems is hot constant
throuyhoul the year (Cheshire wv af 1996; Pairhead
opci, Copertine ape). A number of factors
inchiding total daily isalation, temperiure, querrent
supply and changes in the reproduetive status of
species within (he cammunities resull ins hirge
seusonal changes in productivity (Beer & Fshel
1O8O; Wheeler 1980. Davason ef a 199), Flores
Moya ef af, 1993; Wiencke ef al, 1993; Cheshire vy
wh WMG), AL West 1 (VET). for example. det
production was 50% lower in winter (han in summer
(Cheshire enuf 1996), Other studies have simikurly
showa thal seasodal changes dre more pronounced in
higher Taliludes Gackson 1987: Sakanishi ev el,
1990; Davison ed af IYO).
Measurements of net unnual produetion are
iMportint in developing our understandings of the
Hrophodynamies OF coastal reels, because primary
production underpins (he provision of food (King &
Schrumim 1976; Kirkman (9X4. Larkun Lost,
Hatcher eral TONT: Tun ete 1994) Cheshire ef af
1996; Sehatlelke & Klumpp 1997) Westphalen &
Cheshire 1997) and habitat (idgar 1887) balgar
1000: Martin Smith 1994: Davenport er af 996
1999) The predicied net duly rates (ranging ap to ||
eC soy’ de), indicated from this study. ave high in
comparison lo previous work on algal communities
by Cheshire eff, (1996), who reported summer niles
Wl around G2 © one dat West bh, butbare browdhy
vonsisrent wilh those of Fairhead (opcie) and |
Kildea (pers. comm.) Cumparable rues have
previously been reported, including rites of 30 8 (.
Aad! tor Weerociartiy forests (Collier ef al 1974)
am 20 2 om) ab! for the generally ttertidal,
northern hemisphere / ees communities.
SOSH ON, (C2000 Phe Hpders We Ube (item Vitale tes pales
(Mytitiola) om subtidil South Austrahii pawl syewins
Hlonoues “Thesis Plopaciiment oat Penviroonerdink Btahopy
Poivoraily ob Adeh nthe
On more exposed reefs and oll-shore areas,
turbidity will generally be lower than ia lower wive
energy and more sheltered environments, allow
wreater Tight tansinission and oa greater
compensation depth. ‘Phese predietions are
consistent with this study, Video ssessments of
deep-waler reels showed lew algae deeper than 30-
35 m. although a single plant of BekJania was
recorded at a depth of 40 m on un oltshore reel to the
Horth West of St Frateis b (Pig. 1),
In conclusion. macroalal communities al St
Mrineis Isles show charaeteristie structural
differences on depth und exposure gradients,
consistent with those deseribed by Shepherd &
Womersley (1970). [myportuntty, at Hiner seates and it
uniform depths and exposares, the structure is
heterogeneous or patchy, leading to inferences about
the existence ofFaltermative sible states, the direetion
of change of state. and direction of recovery from
disturbanee, such ous stam damage. Primary
production rates within these communities are
aoe the highest recorded for benthic systems
anywhere in Ure world, thus. providing food and
Hbitut for a diverse und comples food web.
including the blue groperund the rave Australian Sea
Lion.
Sludies of inulli-seale processes that lnk
eonmmunity strucliure und dynamies lo primary
production contribute to our dnderstanding af coastal
Ndring systems thereby allowing For more informed
AHEM,
Acknowledgments
Sincere thanks to Rob Lewis ad SARDE Aquatic
Sciences for providing the RV Neerie alone witht
erew und logistical support for the expedition, The
University of Adeliide provided) additonal field
equipment and the researely vessel Tha/favia, Alastair
Hirst provided jivalialle assistance in diving avd
data collection, Scoresby Shepherd and Sue Murrave
Jones contributed substuntally through their
organisational skills. Tim) Kildlew. Marpareth
Cupertino, Anne Fairhead and Crane Westphaten all
provided data Jo support he pradaenviry modelling,
The editors and the enitivism from anonymous
referees Hinproyed the Inantiseript, Finally, to: the
shore party for fine food, winewnd conversation and
fo Ali for putting ap with the distraetions thal this
Wark creed,
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ASSOCIATIONS OF FOREST-TYPE WITH MORPHOLOGY OF
ECKLONIA RADIATA AND ABUNDANCE
OF UNDERSTOREY ALGAE
By A. IRvinG, M. J. FOWLER-WALKER AND S. CONNELL’
Summary
Irving, A. D., Fowler-Walker, M. J. & Connell, S. D. Associations of forest-type with
morphology of Ecklonia radiata and abundance of understorey algae. Trans. R. Soc.
S. Aust. 127(2), 167-175, 28 November, 2003.
This study tested for ecological differences between monospecific and mixed-species
stands of subtidal canopy-forming algae. At three sites on the northern shore of St
Francis Island, we determined the proportional cover of four configurations of
canopy-forming algae: (i) monospecific stands of Ecklonia radiata; (11) E. radiata
clumps (= 4 individuals) surrounded by species of Fucales (e.g. Cystophora spp. and
Sargassum spp); (iii) individual E. radiata plants (or clumps of < 3 plants)
interspersed among fucoid species; and (iv) fucoid-dominated stands. Mixed E.
radiata-fucoid and fucoid dominated stands formed the most extensive types of
canopy, comprising >94% of forests sampled at all three sites.
Key Words: Fucales, Laminariales, mixed stands, monospecific, subtidal.
Tree rian of tie Kevort Seeder at sy lew (2003). 27 (2p. 167-175.
ASSOCIATIONS OF FOREST-TYPE WITH MORPHOLOGY OF ECKLONIA RADIATA
AND ABUNDANCE OF LINDERSTOREY ALGAE
hy A. IRVING. M. J) Pow) ct-WALKER and §, CoNnptt!
Summary
IVINS OD ROLE Wa REM La Consr hh S. 2. Nssociations af foresttype with morphology ob bedlane
ratte und abun) of linderstaney side. A eenis WNee SL diet 127(2). 167-195. 28 November, 2003,
His study tested for eeologieal differences between monospeeilie wid mixed-species stinds of subtidal
canopy forme ae, At three sites on the northern shore yh St Francis thing, we derermimned che propanol
cover of fou confimiations of conopy-lvining alse: Gf) monespeciie suinds al Loiteanit vertrener:
Ged. radia clunips C+ individuals) surrounded by species of Lucales (ae. Custaphove spp and Seiussen
spp. Oni) individ 2 redade plants (or chimps at 4 plants) Witerspersed amione Mica speues: and fay)
fucvidedomindted shinds, Mixed AL reedierte-tivoid and Meo domrouted stands farmed (he most extensive types
Hhcunopy, comprising 94% of forests sunipled atu] three siles, Using this information. we thentested wherher
the morphology of A. pacliaes plunts and siucture of vinderstacey Moral assemblages differed henveen
Inmnospeelie © valet stinds vind stinds oF individual 2. roedite plints mterspersed dmeng ficoids. The
urpholoy OF ke reediee showed no substantial diferenues benween maospectic and mixed stands, The
stMleture af understorey assemblages diflered substaaliathy among monospecific. mixed and apen babiiats (res
WHTRhGUL canopy-torminig duac) hese results sumeest (hal while die morphology of mature £. made is noe
slronely influenced by forest composition, ibis likely that understorey aluac are strangle afleewu by the
vomposition and relative envers oF species i the overbine ennopy
Ky Wortths: Fucales. Taiminaricles. mised stands, Mmonospeeiic. subnet!
Introduction
Despite differences in the physieal chy ironment
ad eealogy af monospeeitic and mixed-spectes
shinds of vevetalion (hat compose terrestrial forests
(Cannell ev af 1992; Whlseher et af, L9¥8), few
studies bive tested for differences betwee
MahospeeHic und mixed stands ol subtidal
yeeetulion, Marine algae form censpicuous habitars
on subtidal roeky reefs at lempernite lautudes
(Chapmin & Johnson 1990: Underwood etal. 1991s
Witnn & Dayton 2007) and recent evidence
demonstrates widespread heterogeneity in
composition and spatial arrangement of canopy-
forming algae on miuintand cousts (Goodsell efad in
press), Such heterogeneity of forest ray have major
implications for the distibution and abundance of
plants und animals (Schiel & Poster O86: Goodsell
ef alan press). The presence or absenve of an algal
canopy appears to MAuence the compositian and
abundance OF understorey biota (Reed & Foster
(O84: Sehiel & Foster F986) Kermelly l987b
Kennelly & Underwood 1993. Ldwards 1998:
Melville & Connell 2001; Vowler Walker & Cannell
2002) but there remain few quantitative tests of
differences in the structure of understorey
Suuther Soay Feblory Lahoratiries, Seluiel ab Piteth ind
Povironimentul Setenees, | oniversity of Adehucks Adobe, Sevth
‘\ustrdlig SOUS. Aubiralid
Tel oT SS h04 G125) Fan col ® ADS fed
Lam sean conned elialelite coli sw
'Cuncsponding \athor
assemblages between monuspecilic und mixed
canopies (but see Shepherd & Wormersley 1970),
Moreover, the morpholowy of caunopy-lorming algae
can vary over regional (ie. 10005 of kilometres) to
local spatial suales (i.e. metres) (Rite ev cl. 1985;
Schiel & Foster |Y86), Such jorphological
difftrences are ollem explained in terms of
hydrodynamic vuriwtion at scales of centimetres: to
several kilometres (see review, Lund 2000). [ts
possible thit the compesinoan of stunds (ie,
monospecific vs mixed) thay influence the
morphology ol the component species as a direct or
indireet consequenee of differenees in the type and
abundance of neighbouring individuals within a
stand (Dayton L975: Schiel & Foster 986),
We tested lor differences in the relative abundance
of four types of algal sama (mopospecitic. imixed-
clumped. mixed-interspersed and tice see
deliniuon below) eredted by canopy-lorning
microaleae at three sites On the northern shore af St
Francis Island. Nuyts Archipelieo, We then tested
the hypotheses thal (1) the morphology of £2 paediuta
ind (2) the siructural composition of understorey
assemblages difler beuween monospecific and mixed
stinds of cunopy-lorming algae.
Methods
Hirce sites separated froin each other by at least |
km were sumpled along ihe northern coustline of St
Vrancis Island (Fir 1), which is relatively protected
from the large southerly swells that the island is
108 A. DL IRVING. M. J. FOWLER-WALKER & S. D, CONNELL
Nuyts
Archipelago
=, St Francis Island
1 km
ee tf
rod Australia \
Fig. 1. Map of St Francis Island showing the locations of the study sites and the position of St Francis [sland relative to
mainland South Australia. Inset: Map of Australia with South Australia shaded,
subjected to throughout the year (Shepherd &
Womersley 1976). Canopy-forming algae were
defined as stipitate algae greater than 5 cm in height.
Relative Abundance of Algal Stands
Stands of canopy-forming algae were identified at
the | m’ seale as: ‘monospecific’ when = 80% of the
canopy cover comprised £. radiata, ‘mixed’ when
40-60% of the canopy cover comprised fucoid
species (e.g. Crstophora, Sargassum, Myriodesma
and Scvlothalia spp. see Shepherd & Womersley
1976 for a more complete list) in a stand containing
E. radiata, and *fucoid’ when = 80% of the canopy
cover comprised fucoid species. Only stands
containing &. radiata with 40-60% cover of fucoid
species were classified as ‘mixed’ because such
stands were believed to represent a more mixed
configuration of canopy-torming algae than stands
containing 20-40% or 60-80% fucoid species. Mixed
stands were further categorised as ‘clumped’ when >
4 individuals of £. raciefa were nearest neighbours
and were surrounded by fucoid species, and
‘interspersed’ when individual A radiata were
scattered among fucoids so that nearest neighbours
were not other &. radiate mdividuals. At cach site.
the relative abundance of each of the four stands was
ASSOCTATIONS AMONG AL GAL STANDS 1h
quantified along four 100s | ont transects separated
by = Hin, Transeets followed taupe ineustires lard oul
normal ta the shoreline and began os close tu mean
low water os the prevailing conditions would alloy,
Observers swim along each transvet and revorded
(he distance ul whieh thetype ol algal stanelefanged.
Sampling stopped at 100m or the sand line,
whichever wechrred first Univariate analysis. of
varhinice (ANOVA) tested the relative contribution of
the different types of stand deross the three sites,
Weatin “stind’ as fixed and “site as random std
orthogonal Towever, for any given ninsect the
abundance oF au particular lype of stand was nol
Independent from the abundances ul te other (heree
Types of stand tn that transect. Henee, the dani fy
one OF wach wpe of stand were randomly selected
from cach of the four orminal bramseeis (ee, the
abundance of monospeefie stunds from tramseee |,
Mincd-clumiped stands (on transvet 2) mived-
interspersed sands fram Wanseet 3 ahd fucord stands
fom trinsect +) and were combined to generate a
“new transect where the abundunee of any one ip
of stand was independent of that for amy other type
of stand. Phis process was repeated unt] four Sew"
Iranseets were generated per site,
Morphological Measures af Vcklonia radiata
Right morphelogical charicteristies were
quantified front tadividual reid (Table 1)
sumpled trom monospeciie siands of & reefer snd
mised-interspersed stands. us 2. heed/ufe appeared 10
he more evenly mixed in these stands thar in minced.
clumped stunds, At cueh oF the (hree sites. five
quadrats (1 a) were haphazardly placed within caeh
type oF stam atu depth of 3-8 mv to minimise
pussible bias of depth on differences in morpholuny
Quadrats Were separated by metres. and positioned -
Lom from the edge of w stand. A single 7 reedieite
plant witha each quadrat was cut off ut the base or
the stipe und brought to the surlice ta measure, Only
mature plants (stage 3 seaser Kirkman 198) ) were
used Lo reduce any bits ef uge on the morphologica
incisures., Twoeway fon-puramelric multivariate
analysis Of Variunee (NPEMANOWAS Anderson
AHO1) Wested Tor the nelitivesind Hilersebve eleets pf
stand anid site on the morpholowy oF A reer.
Saruenre af Ciderniacey: Asventhlages
Agsembliges of understorey flora were qutitied
iN MoNnOospecific and misved-inlerspersed slunds of
algae and also on surfaces of reef wathout eanapy-
forming: mMaeroulgae (referred: to as ‘open’ habjits).
Quadrats (om GO) Were haphagardly placed
With) cach type ol stind ata depth of 3-8 mand
were posiffaned © 1 nm from the cdae ofuestund, The
perventaye covers OF understorey algae were then
quantified from evel quad using de potri-
iMercepl method (25 rewularty spaced points within
anared oF 20-8 20 en Meese & Lounel 1992). Tura
were recognised ds oO Component of the Understatey
1 ther herehe was 5 en and the functional groups
identified were enerusting coralline alawe. arlivulatedd
corulline alune. Filamentous ture tormin aleae.
foliose (Meshy, nor-eoralling) alpae and juvenile
canopy-forming alge (verse Steneck & Dethier
994),
Results
Mast stands of canopy-lorming algae eontsined &
vadiche ju some configuration und monospeeilic
stunds of E, recientes generally oecurred. itt the lowest
proportion of all algal stands (Vig, 2), The spatial
iyrangement of the different types of stand exhibited
considerable helerogeneily at all depths wreater than
J pv and the relative abundance of the four types of
stind varied in an ineonsistent manner anione sites
(ANOVA: stand s Site interaction; Ay, > 310.77, P=
0.0463; Student-Newnmun-Keuls (SNK) tests: Fir.
2). Previous studies of the subtidal distribution of
cunopy-lorming alaae have identified vones of
particular types of stand (eg. Shepherd de
Womersley 1970, 1970: Crrace 1983), Tn this study,
ANOVA on the depths thatstands oeeurred did not
provide uny evidence for in assoeiution of stund wpe
with depth (P > O05 for all sites). This is pot
Tabot h iephalagical variibles oP bcklonia ria qimeuilied, The tcriinalags of Muniersloa (L987) has Been aeapted
Tar dese tilines partie parts af the plant,
Morphologival Variable
a Wel Wenahi (2)
spring bulunes,
bb. Pla) Letiethy (en)
o. Ste Loner (ene)
Myon.
d. baming Length dn
© Stipe Width (em)
V Larnine Width penny
& Number of Mature Lateral
lh. Number of Eroded Laterals
Count oF kites ~
Provecure fur Measurement
Pacess Witter shaken ofl and weight ol whole plant (without hold hist) measured ona
Fongth of plant from base of stipe to tip ot lorie
From ommedintiely above fhe holdfist to where the stipe wideits ilo the menstematie
From base of meristemahe resion to the tip.of Lamina,
lnmmedintely dbowe thy holdlist Widest chameter i oval shaped,
Width meustired at SO') af Lanvin ieneth.
- Ton in lenath (ot melding ended apical kaerals),
Countol faterals Uni have undergone heavy deeradation (usually near apex of kimi),
170 A.D. IRVING, M. J. FOWLER-WALKER & $. D. CONNELL
B Monospecific 4 Interspersed
O Clumped O Pueoid
Percentage cove!
RS SSS SSS
RSs
+h
oe)
Site 4
Stress = 0.04
kig. 2. Percentage cover (4 SI) of different types of algal
stands (#7 = 4) for three sites at St Francis Island.
Fig. 3, Non-metric multidimensional scaling (nMDS) plot
of Eeklonia radiata morphology between monospecific
stands (filled symbols) and mixed stands (unfilled
symbols) within cach site (MB Site 1, @ Site 2, & Sites).
(a) Wet Weight (g) (b) Plant Length (cm) (c) Stipe Length (cm)
(d) Blade Length (cm (e) Supe Width (cm) (f) Blade Width (cm)
(h) # Eroded Laterals
ml Monospecitic
[| Mixed
Sites
Fig. 4. Measures of morphological variables (+ 8. E.,1= 5) of Ecklonia radiata for monospecific and mixed stands at three
sites.
ASSOCIATIONS AMONG ALGAL STANDS a
surprising given that the depths that transects
stopped at ranged between 10.8 ti and 17.6.m, which O O
is Well within the extent of the mid-sublitioral algal
vone identified by Shepherd and Womersley’s (1976) ee)
investigation of the algal Mora of St Francis Island, OP)
The morphology of £. raciafa generally did not
differ between monospecific and mixed stands (NP- O
MANOVA: Stand: Fy, = 2.25. P = 0.1768), but did Q)
differ among sites (NP-MANOVA: Site: fy3) =2.28, N
P = 0.0410) although pest foe tests failed to N 10 MX
distinguish among sites and the non-metric , r <!
multidimensional scaling (nMDS) plot did noi MOMX NAVIN
provide an indication of obvious differences among
sites (Fig. 3). There was, however, a consistent trend MO MAYNMX
for plants to be larger in monospecific than mixed MO,
stunds (hig, 4). such that 20 of 24 comparisons (# MOM MOM f
varnibles x 3 sites) showed morphological variables MO MQi MX
fo be larger (Le. heavier, longer, wider). While 10
ANOVA did not detect significant differences
between mixed and monospecific stands (Table 2).
this observation (20 of 24 comparisons) is not
expected by chance alone (Binomial rank test ? =< Stress = 0.18
0.01: Underwood 1997),
The structure of the understorey assemblages
differed according to the type of algal stand at each — Pig. 5. nMDS plot of the structure of the understorey
site (NP-MANOVA: Fey; = 25.01, P = 0.0000: assemblazes quantified in monospecifie stands (MO),
monospecific 4 mixed 4 open; Fig. 5). A weak effect mixed stands (MX) and on open surfaces of reet (0), All
OF site was detected (NP-MANOVA: Fy, = 2.45, P replicates are shawn and sites are not distinguished,
Tani) 2. dive-war ANOTE festing for differences of morphological characteristics of Ecklonia radiata among types of stand
(monospecific ww mixed) und sites MU) * — PILE, P= PS OA ns — nonesienificcnt result (P > ONS)
Source df MS i P MS F I
(a) Wet Weight (b) Plant Length
Stand | 0.04 1,33 as 0.12 4,74 ns
Site 2 0.06 $.57 * (4 1.09 ns
Suind § Se 2 0.03 2,31 ns 0.03 0.66 ns
Residual 24 O01 ().()4
(c) Stipe Length (d) Lamina Length
Stand ] O10 4.7 ns O15 4,7 | ns
Site 2 OG O89 ms 0.05 100 Nis
Stund © Sile 2 02 (ha5 1s 0.04 (L58 ns
Residital 24 O06 0.05
te) Sipe Width (1) Lamina Width
Stand i (Ll4 452 ns 0.04 371 ns
Site 2 (.()2 1.08 ts O23 4.94 *
Stand x Site 2 0.03 {07 ns 0.02 (52 ns
Resrlial 24 0.02 O05
(2) + Mature Literals th) & Froded Laterals
Stind ! 1.58 114 is O17 76 ns
Site Z 1.55 S61 *e 0.07 045 ns
Stand s Site Z 1.38 S00 5 O23 1,56 ns
Residual 24 O28 O15
All ivasuced data (a, boc. dee & f Table 1 & Pig. 4) were In(y) transformed to render multiplicative treatment effects
aid to Harmialise the positive skew of the characters, and all count data (g, bh) were square-rool dy © 1) transformed ta
homogenise the variances (Underwood LO8t), The assumpiion of homogeneity (Cochran's C-test) was met for all
characters except for (e), hence & more conservative G-value was used (a O01) (Underwood 1997),
72 ALD, IRWING, Mo. FOWLER-WALKER & S21) CONNELL,
Tait 3. Aveeway INGE testing for differences in the abundance of encrustiag viralline algue, falise algae und
Jiumenlous larisformiag ulzee onidis differ bypes af aleal siend (nonspecific wy aiyed vs vpetl ap tive sites
tm Pe Ws, Poo QOH, as = non-significant resilt (P= ONS).
Source —_ dt MS F P
Encrusting corafline algae
ite a 99K 074 ns
Stine x 4518.52 | M75 tee
site x Stand 4 Hh04 (L382 ns
Residial AS (35,34
Fatinye afgee
Site 2 Soak2 O48 ns
Stand Z S450).00 Vh.28 ’
Site y Stave 4 24.62 SS 1s
Residual 45 | 16.42
Planenaus (e/facniine afene
Site a {21.72 1.29 ie
Sind 2 9552.54 125,29 Bt
Site « Stand 4 70.24 O61 ns
Residual 45 oa 03
Dale represen) pereent cover wid so were aresing (square-root) translormed prior to analysis. Cochran's C-test fo
homopencity al varianees: 7
alwae. SO Significance judged more cautiousty alo,
0.0472) although post fie tests failed to
distinguish ¢mong sites, Taxa that primarily
contributed to multivariate differences were
identified by successively omitting the (Most
numerically abundant taxa and repeating the
multivariate abalysis until no significant differences
were detveted, This only occurted onee enerusting
coralline olgae. foliose algae and turls of filamentous
algae were all omitted (NP-MANOVA? Fey, 1.98,
P0128) Univariate analysis of these three
lunchonal groups of algae revealed that the cover ot
cnerusting coralline algae was greatest in
monospecific suinds (Monospecifie = mixed > open;
Pig. 60), whereas the covers of foliose algae (Fig, 6b)
ond turfs of Glumentous algae (Fig. 6¢) were
venerally pretitest on open surfaces of reel ( table 3).
Discussion
The lorests of subtidal algae on the northern shore
of St Francis Island oecurred in different
configurations (monospecilic. clumped — and
interspersed stands of EL reedieta, and fueoid
dominated stands), but in different proportions (6%,
33%, 33%, and 28% af forests sampled,
respectively). This suggests that there are at least
three extensive types of stand ereated by cunopy-
forming alsae (clumped, interspersed and fucoid) in
which monospecific stands of FE. rueffeta are
relatively sparse. This result differs from that found
by Goodsell ef ef. (in press) where monospeeilic
stands of A peedietee were found to exist in equal
0.05 for enerusting cormling alive and foliose algae; 7 = 0,01 for filamentous turetorming
OO) (Underwoned LQO7).
proportion to that of mixed stands (clumped. este
interspersed) across several locations on mainland
Western Australia and South Australia. Although
very preliminary, differences between this study and
that of Goodsell ef ad. Git press) raise the possibility
that the proportional abundances of Ihe types of
stand recognised here dilfer between offshore islands
and the shores of mainland Australia,
Although only subtle differences im the
morpholugy of &, reefiata plants were evident
hetween monospecilic und mixed stinds, the
stricture OF the understorey assemblages of algae
varied strongly deross sites according to the type ob
overlying algal canopy. Wiile previous stuities
demonstrale that the abundance and distribution of
understorey organisms can vary — predictably
according. to the presence or absence of an algal
cunopy (Kennelly 1987b, Edwards 1998; Melville &
Connell 2001: Fowler-Walker & Connell 2002), itis
apparent that the structural composition of the
understorey biota is also associated with the
composilion of the canopy and not jist its presence
or absence (Shepherd & Womersley 1970; Poster &
Vanblaricom 2001), Observations showing thal there
are several different types of stand distributed across
a large proportion of subtidal coasts (this study and
Goodsell ef af in press) and that bio may be
alfveted by these differences suggests that further
research may benefit greatly from treating different
stands separately rather than lumping them as a
single babitat type (i.e. ‘canupy-forming algae” or ‘A.
rudiake), which is likely to elevate uncertainty and
ASSOCIATIONS AMONG ALGAL STANDS
gae
=)
(a) Encrusting coralline al
3)
S 60
3
5 40
jal
20
0)
(c) Filamentous turfs
3 60)
6
O
5 40
2
20
Q)
=I
| 9)
Site
I
Lyd
(b) Foliose algae
0)
a
Site
Vig. 6. Percent cover (+ SE) of (a) encrusting coralline algae, (b) foliose algae and (¢) filamentous turl-forming algae
quantified from three types of habitat (monospecitic stands, mixed stands and open reef) for euch site.
confusion about the extent of pattern because of
large and seemingly ‘unexplained’ yariance among
replicates, Greater abundances of foliose (erect)
aleae and reduced abundances of encrusting
coralline algae in mixed vs monospecific stands (Fig.
6) may be partially explained by differences in the
physical environment between these two stands. Our
unquantified observations suggest that light
transmission is greater, and rates of frond scour
reduced, in mixed stands, which may favour the
development of algae sensitive to reduced light
availability and/or strong scour conditions.
{1 is not undersiood what factors contribute to the
origin of mixed rather than monospecific stands of
canopy-lorming algae. When £. radiata is removed
from the substratum, several species of fucoid have
been observed to recruit to the newly created bare
space (Kirkman 1981; Kennelly 1987a, b; Schiel
1988: Kennelly & Underwood 1993), We therefore
speculate that mixed stands are more common in
localities of greater local disturbance, which has
removed L. reeiate, allowing colonisation by one or
more ucoid species. The ming of distarbances that
can remove EF radiata from the substratum (e.g.
174 A.D. IRVING, M. J. FOWLER-WALKER & S. D, CONNELL
storms: Kennelly 1987a) is often unpredictable but
appears to be important for the subsequent
establishment of fucoids or re-establishment of F.
radiata (Kennelly 1987a; Schiel 1988). Unquantified
observations indicate that £. radiata tends to be a
stronger competitor tor space than most fucoids, but
fucoids tend to be presented with more opportunities
to colonise new space because, collectively, their
propagules are in great abundance (Umezaki 1984)
and appear capable of recruitment over longer periods
of time (e.g. Kendrick & Walker 1994). Hence, the
combination of local disturbances that create new
space, and the ability of fucoids to colonise rapidly,
may explain the presence of mixed stands. These
mixed stands are likely to be younger than
monospectic /. radiata stands, which may explain
why E. radiata within them tend to be smaller. Thus,
the forest stands we see today may not be so much the
product of current interactions but rather the result of
past events responsible for their origin.
Tn conclusion, it is apparent that forests of canopy-
forming algae can be composed of different types of
stand (e.g. monospecific and mixed) and that the
relative abundance of different stands can have very
real consequences for the distribution of understorey
algae. This study provides evidence that there is a
need to understand the extent to which types of stance
affeet ecological patterns and processes within
marine forests. Large differences in the composition
of algal stands may obscure or confound patterns that
we base on loose definitions of E. radiata habitat
(i.e. any | m? with £. radiata present). Terrestrial
ecologists have found that mixed forests deserve
separate study to the extent that entire books have
been dedicated to the subject: e.g. ‘The ecology of
mixed-species stands of trees’ (Cannell ef a/. 1992).
It may not be surprising to find that mixed stands of
algae represent distinct habitats that deserve study in
their own right,
Acknowledgments
Work at the Nuyts Archipelago could not have
been achieved if it was not for the valued assistance
of SARDI Aquatic Sciences, the Department for
Environment and Heritage (South Australia) and the
crew of RV Negerin. We thank S. Shepherd and M.
Coleman for their valuable comments on the
manuscript. This research was assisted by an
Australian Research Council Grant to SC and
University of Adelaide postgraduate scholarships to
Al and MIFW.
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SUBTIDAL MACROFLORAL SURVEY OF ST FRANCIS AND
FENELON ISLANDS, SOUTH AUSTRALIA
By J. L. BAKER*,7 AND K. §. EDYVANE*,£
Summary
Baker, J. L. & Edyvane, K. S. (2003). Subtidal macrofloral survey of St Francis and
Fenelon Islands, South Australia. Trans. R. Soc. S. Aust. 127(2), 177-187, 28
November, 2003.
In a survey of the inshore benthic macroflora of St Francis Isles in June 1992, the
spatial patterns in composition and biomass of canopy and understory algae, and
seagrasses, were examined, and compared with two other surveys in 1971 and 2002 of
the Isles. The macroalgal zonation at St Francis I, was dominated by the fucoids.
Scytothalia dorycarpa, Sargassum verruculosum and Cystophora platylobium, with
other canopy taxa including Ecklonia radiata, Cystophora monilifera, and other
species of Cystophora and Sargassum.
Key Words: Macroalgae, subtidal survey, St Francis Isles, southern Australia,
temperate macroalgal distribution patterns, offshore islands.
Treactaus uf the Raval Secures, dust (2003). W272 TTL
SUBTIDAL MACROFLORAL SURVEY OF ST FRANCIS AND FENELON ISLANDS,
SOUTH AUSTRALIA
by J. L. BAKER? AnD KR. S. Bbyvane
Summary
Bakin db o& Eoyyant, 5. (2003) Subtidal macrofloral survey of St krancls and Fetichon tstunds. Seth
Australia. (avin RoSae, Sota, 127(2). 17 7-E87, 2% November, 2003,
Woaosurvey of the inshore benthre microflora of St Frincis Isles in dune 1992, the spatial patterns in
composition and bromass of canupy and understorey ulvae, ane sequrasses, were examined, gad compared wath
we other surveys in P97} ane 2002 of thy Isles, The macroalgal zonation at St Frincis 1. i 1902 closely
Holloweal the patterns desertbed in [97 L. The mid sublitioril on exposed coasts oF St Rriticis Lo was dominated
hy the fucoids, Semoiaia decveure, Saruemsem verrucutosm nd Cysfophara ply lobai, 3 ib other eunepy
tasa including Ledfoie rodidiea, Cyttophor moniifcrd and other species oF Cysvapfeare and Nerwssan
Seagrass communities were dominated by Povifawia siriove aod Meteravesrera favienica. The macroulgal
dasembhines of the Isles are heterogeneous at (he quadrat level and atthe yeplicutd iranseet level where withing
ished transects mity be less similir than transects between ishids. Regionally, the macroloral assemblies of
the Isles of St Francis are clearly distinet from the tnyestigator Isles. with fewer species of Rhodophyta and
Chlorophyta recorded at the St Pruncis Isles, aid differenees in composition af canopy dominants. Searshure
reels of the Investigator Isles were dominated by the kelp Eed/onie rudigta Whe laeoid deracarpia pamentate
and mixed Chyapharad species, A spevies-aecumulatian wurve suggests relatively high algal diversity with minty.
rare species. Possible fietors intiieneing the differences in macroflaval species composition and riehness
observed between the two ishild aronps are discussed. Phe St Francis Isles have warm Wimperute allinilies.
evidenced by the presence of Sereesseue spp, (irom. a predominantly tropical subgenus) as commun canopy
forming subdominants, Revent hypotheses ubour the prediction oF maeroalgal composition fram a single
physical (detun such as wave exposure, are discussed
RIY Waktbs: Macroghuae. subbdal survey. St branes Isles, southern Australia, (gmperte mieroalyal
chistribulion patterns offshore ishinuds,
Introduction
Macrouleal assemblages are a distinelive feature of
subtidal rocky coasts wid espeeially so in southern
Australia, whieh has the richest macroulgal diversity
in the World (Womersley 1990), Macroulgal
communities of the eastern Cuveat Australian Bight
(GAB) are also highly produetive due to seasonal
coustil upwellings (idyvane & Shepherd 1999) and
they provide 4 trophic base for substantial melluscan,
crustacean and vertebrate fisheries in the region.
Macroalgal and) seagrass communities af St
Francis (sles, Nuyts Archipelago (lermed the Isles).
S4 kin oll ihe coast of western lyre Peninsula in the
North-cust CGIAB (Pig. Ly) (Robinson en al. 1996,
SUEY AUSt Resell an Dee lopiient Hist, POP Bars
J20, Herley Besteln Sa, S028
Proven aildrews: Dep Applied & Molecular beolouy, bnivgrstty
Wh Adela SA. S00
HHesem addivss! Seloul of Goagpiphy a Epetonental Srulies
Liwerstny of hase. Habit Vise TAO
Iylyyitie. BOS. & Baker ot Maria Benlic Survey aH tlie st
Peoneiw dvtes til Tevewtiaaigan bales, Sool Vuscetige Preps:
Hendon Hepant prapmycd fit THe AUSHMEN SiGe Cansert ation
Amey, Coober, Austohe CSARDE Aguune Seetees, Sigua
Nuisttstlin),
Milyyine. OS. & Baker 4 Maite Hlerivipe Valies at ie St
Fringes telus diel reyetiiitor sles, South Adstiabin find Roper
WTO AAT Theae aiissian SEP 199s 96) Project
Survey rele Coastal ial Marie Bherihibs of S.A Dholagieal
Conmmatiitios, ESATO Aquatic Seignees, Soutlh \ustent inp
2003), were first surveyed in 1971 by Shepherd &
Wonersley (1976) in relation to water movement
and depth, and recently i 2002. Phe benthic
macroalgal Tora of the Investigator Croup,
upproxinwitely 160 kim south, were studied by
Shepherd & Womersley (1971) and Udyvane &
Baker’,
This paper deseribes the dominant canopy and
understorey moecroaleal flora recorded ny 1992 at the
Isles, and compares Hh wilh the 1971 and 2002
surveys, andl with the 1993 survey af the Investigator
Croup. Muecroalgue were the dominant benthic cover
on horivontul surfuces at siimpled sites at both the
Isles and the lnvestigater Group, ind formed the
Major structural component of the inshore sublittoral
benthos,
Methods
Regional Qeeunaarapn and Site Deseriprian
Sen surface temperaures around the Isles are |.
Tse jh winter to 18-20°C i stammer, The Isles tie
Wi the pull of several water miusses, I winter warm
waters fram the Leeuwin Current and warn GAB
plumes flow eusterly, murmtuininy mild sea
temperatures, whilst during summer to auton, the
same warm plumes. heated on the shallow shell of
the northern GAB, Uvigle with cooler upwelling
(7s JOL BAKER & K.S. EDY VANE
water off eastern Eyre peninsula, 2-3°C lower than foundation, with calcarenite capping (Robinson es ul.
surface temperatures (Griffin ef af 1997; Herzfeld 1996), whereas Pearson I. in the Investigator Group,
1997: Herzfeld & Tomezak 1999). also 4 granitic inselberg, has no calcarenite capping.
The Isles are typical inselbergs of granitic St Francis and Fenelon fs were surveyed on 15 — 24
Ma's
mn St Francis
: Island
E
{——————-- :
S Fenelon
Island
Flinders Island
Wardisland |
E.s .
- Pearson Islands
ae
Ss
+
10 km
hie 1 Map of islands sampled. in the St Francis [sles (St Francis and Fenelon [s.), m the Nuyis Archipelago. and the
Investigator Group, off the west coust of Eyre Peninsula. South Australia. (Wave and swell exposure level mdicated for
sampled sites: E = exposed: M— moderately exposed: S — sheltered). Note that the “sheltered” side of Fenelon L. is less
protected from exposure than tbat at Sr Francis. due to the small size and round shape of Fenelon. Similarly, due to the
small size of Ward L. the “sheltered” sites sampled at Ward are comparatively more wave-exposed than the sheltered sites
onthe hay side of Pearson 1.
SLE BLIDAL MACROPFLORAL SE RVEY OF ST PRASCTS & PUNE LOS ISLES Ww
June 1992) and in the Trvestivater Group, three
islands (Pearson, Ward.aid Waldeerive Is) lrom 2
10 February 1993, Sampling was lierarchieal. sealed
and evologically representative for a aume ol
cayvironinental variables. ineludies depth. coastal
physiography (he. istands. Beas, Peadlands), ciel
waye exposure (Edyvane & Baker (999). Siles were
seleeled ui eaposed. moderutely exposed and
sheltered shores in relitian to prevailing swell
(Ere, 1) Ab cach site, four repheale 1m samples,
representing (he pattern of dominant cover were
tuken on twee replicate unmsects. al Som depth
intervals from 5 20 m depth, wiviig 4 total of chehe
lo samples al four depths per site. Replace
{ranseers were set normal to the eoast, anit spaced
40-100 i apart
‘wviables recorded in the field tmelyded visuitl
estimates (Yr cover) ob (he dlominunt sessile benthos:
macroulwao. seagrass; und sessile biota such as
sponges. uscidiins. and bryovvans, Samples were
sorted, weithed and identified (Womersley 1904,
1996, 1998). and blomuss aid "'o cover dats lor eneh
sel of four replicate quadrats were averaged. and the
resaliing. Figures for cueh pair of transects were also
uverawed.
collected fave been fodged with the
Biodiversity Centre or South Australian Museum.
Multivariate claissifiedtion provedures such as mon
ineiric muli-dimensional sealing (MDS) (Kerusloil ae
Wish I978: Tield ot af 1Y82) Clarke 1993) and
cluster analysis (Romesbure 1s4; Clarke 1903)
were used to classify pananns af benthic caiposiian
il oa Vvanely of spatial sedles (locul, biounit,
bidregion). lor assessing the lare-seale, regional
patterns in the maccolflora of ihe Isles nel
livestigalor Croup (re. at the “bioregional level),
species presencesubsenve dita were used. bur the
broregiunal comparisons, MDS plots were produced
use a eeu assockition matrix of species
compysition (presence-absence) data for the
ovations alisplayed, ordinated using MDS
pricedures In SYSTAT sathware (Wilkinson 1990).
The resulling postions in tle MDS plot were
validined csi cluster analysis (Ronesbure (as)
Wilkingou D990) with the PET (0 comparison)
(Wilkinson 19890) index as a distance metric. used
with the LIPGMA. clusterim alvorithm, For the
smaller sade. habitvelevel Compurisons ol
mucrolloral composition and rebiiess, MDS plots
were dencrafed Using both “Yo cover and biamiass datit
of mterodtac urd seaerisses, Por broly
classifying benthic community types (he. not
eluding rare Speers), sparse species were rennoyee
(ic, Thoseless thane equate Ui cower. owcureiay
AL ey amie Site UNTIY ),
The dati Were then ordinutcd by oan MDS
procedure using SYSTAT software (Wilkinson
Voucher Specimens of all stimples
Stale
L990), with normalised Luchadeun distance ss both
the dissimilarity measure and (he conshint in the
Minkowski metric tor computing dishinces between
points it the MDS configuration. and Kraskul’s I
Stress Formula | (Kruskal & Wish JYTS) as the
gopdness-O1- lil stilishe lor fre regression ol 2
dimensional distances. versus dissimilurity values
Other methods used to display patterns of sampled
Species composition andor abindaliee miele
summary lables. a bur chart, and a speeres
eeu muULAtON Cueye.
Keosulls
Macrdalsal Compasitean at St Francis les
Qualitalively. nacroaleal compasitian ait the Isles
jh 1992 was sinyfar te that a (971 (Shephent de
Womersley $976), particularly mn te compositor of
major canopy species. Ty the 1992 survey. benthic
macronoral caver ut Fenelon Lo was. very: Similar te
(hat at St hraners Li eahopy composition, but notin
binmuss of canopy species (Fable |) Cienerally, the
mid sublittoral was duminsted by the tueoids.
Sewetheltes darvoepe (particularly at deeper. and
More WAVErcX posed Sites), Seavey verre lesan,
Crlophore moniiifere (parlieularly shallow waters 5
(Omiand € plavluhiin (in deeper waters 13 —
20 fay. Wilh other canopy species thelidimne Lekdania
reelidtit, SIN Species OF Chytapliara (OC. sedbferciiute,
Co unnwiliy, ©. expan Co relent Co erunilifarinis
une ©) Dyed) and tour species of Sumas (5,
lacifalnim. So packiecautin, So verdana 8.
deepens) (Vable 1) Speeres Of Seeagssead)
(partedlarly So verrica/asan) aod Crvtophora
(particularly CO) maadifera and € subhivcuiite)
tended to dominate the shallow mid sultlittaral (10 —
15 m) at both wave-exsposed ind more shullered reel
sites at St Drancis b Se\fetdeilig was dense anid
ubundint trom PO 204) on beth sides of Fenelon |,
and wl 20 m on ihe exposed side af St Franuis |oand
recorded asa co-dammnant ae IS om ob St Francis: 1.
Beneath the feeid cayopy, copie aliderstorey
Inellided Cyviiendarig prolifera (ios
previtlent at wavestellered, shallower reel’ sites
from 8 — (Oan). Cuadorpar foyiiy (particularly dense
ut Penelon dl). Placumina spp. sueh as 2 wertenstt
anu 2 preissicniie which wereabundant al Fenelon
Li Homeosichis sinclaitis Zeneaiia spiralis:
Jhiliprdan vases Metaweanoatithan radiatum:
drescharigig conwesio and Laurenicn fitiformis. On
the wiyerenposed sale OF Fenelon LL, sporize species
comprised | 3“) ofthe surlace cover al 1 13m
and various compound and simle ascidiins (eu,
Bown Hawes sp. Herednanie moms) comprised 2
20 aPihe surlaee cover A hard con) (lesianiea
ap.) colony was also pecardedl
ALIS 20), salidy substtateat shellered sampled
species
180
JL. BAKER & K.S. EDYVANI:
Vanek |. Major macrofloral species from 5— 20m depth, at St Francis and Fenelon Islands. Dataare hiomass (2 wet weight
Jar), based on averaged quadrat data for replicate Wanserts taken at macroalgal-dominated sites. Minor species af
macroalae" refers to low biomass understorey species af 5 2 nv or less, and single specimens of large, canepy-forming
ypectes
north-east; SW = south-west. Numbers 5, 10. 15, 20 in coltunn headings refer ta depilt (m)
Canopy Species
ecorded in-any quadrat. Site codes uve as follows: Sky ~ St Francis; Fen = Fenelon; NW = north-west; NE
Cystophora browntt
Cysfophora expanse
Cystophora gracilis
\srophora monilifera
Cystophora moniliformis
Cystophara platvlobiun
Crsfophora retorta
Cysfophora subjarcinata
Leklonia radiate
Sargassiim decipiens
Surgussumn heteromorphum
Sargassum lacerifolium
Sargassum podacanthim
Sengassuam yartans
Surgassnin verruculasin
Scuberia agarellril
Seplothalia darvearpa
Understorey Species
Amansia pinnatifida
elreschougia congestit
Bullia vallitricha
Botryocladia sonderi
Callaphvilis raneiferiner
Carpopeltis phyllophara
Caulerpa flexilis
Caulerpa sp.
Delisea hypnevieles
Delisey pulchra
Dilophus gunnianus
Crigartina densi
Haliptilon roseum
Hamoeostrichus sinelatrit
Hymenocladia usnect
Leurencia elata
Laurencia filifarmis
Metagoniolithon charnides
Metagoniolithon radianim
Osnuindavia prolifera
Pachydictvou paniculanin
Plocamium angusaun
Plocamiuat mertensit
Phocemitn preissiantan
Rhadvmenta uustratis
Sparochrus racdicifarnis
Zunaria spiralis
Number of Minor Species
SFr SFr SFr Shr SFr Fen Fen Fen Fen
SW10 SW1I5) NW20) NES NE1O SWIS5 SW 20 NES NE 0
7\
156
Yt) 8]
193 150 1143 31) 409 944 108
77 6
36 472 105 Ad
136
97 40 134 Fl 292
192 22] 276 489 454 489
Iso 32 428 361 136 292
20)
93 207 87 LSS
Sx 257 218
76 112
347 410 1550 1137 1s
110 45
2176 1249 25K 2036 13k4 2287
7
8 x2 20
12
s
6
26
47 lo 62 174 102 158
33
6 13
6
9]
6
y 16 SO
7 a2 15
38
Ik
4s OS
15
23 28
71 139 204 i] 137 714
12 U
12
“ S| 7 12
fy
7
I+ Ay 7 Is 15
34 55 17 10 \7 15 26 14 10
VABLU 2. Seaeruxs caver recorded at sampled sites at St Pranets and Peucton tstauds, Data are biouress (2 wet weight ¢
ne), tise! on averaged qudrat date for replicate wranseets. Sites marked with anasterisk are those that were dominated
hv macroalzae (see Table 1), and for which minor coverage of seagrass Was recorded, Minar species” refers ta low
hiemieass species.af 5 / im ar less, Site codes as for Table 1
Scavrass Species SFr SFr SFr SFr Pen Fen Fen
NW 15 SW 15* NE 15 NE 20 N& 5* NE [5 NF 20
Heterozostera tasmanica 29 2 7
Pasidunia cpriace 35
Postdania sinuase 703 mb, 647 567 su) 455
Number of Minor Species 7 4 5 2 4
SE RTIDAL MACROFLORAL SURVEY OF ST FRANCTS & PENLLON ISLES \Al
sites (hig. |) on both St Mrancisand Fenelon Is. wes
dominated by Pasidoni sinuosa and deterozosterce
lasmamicg sedanioses (will (ilar caver or 7!
roriieye vecorded at Fenelon 1), oecasionally with
The ween ulna Colona yealpellijamtix (cw. St
Vraneis | at 13 om) and the red olva, Plocaminen
merlensti lhe laterof whieh was relatively abundait
(average [00 wm?) amongst seagrass at 20 mm. ul
Fenelon. Shepherd & Womersley (1976) tad alse
recorded 72 siiitase 4h, done “a narrow-loated for
Ob Posidonioa australis’. Uv this survey, Po sites
Wiis alse recorded ul 13m on NW SL Frances |, uader
more wave exposed conditions (fable 2). 1 sdvitase
wis not recorded in the Ivwestiatar Group (Pearson
and Ward Is) where 2 angustifolia was Wie comity
Posidetiel Species.
femparal Compariserveal Maireflaral Composittan
So Qauntibtlive OiIVaelate comparison eal be
made between the 197) und 1992) macrofloral
surveys of the Isles. due to the differences in
sampling oabjeetives amd methods, However. the
1902 stirvey hus shown qualitatively consisteney
aver time i composition OF macroalgal dotmmants
over the 20 years period. This ts un important finding
due to mueh evidence that aleal assemblages are not
stable over time (Sehiel & Foster 1986) Due
probably to the differing sampling methods. sailed
macrodlyal species richness at the [sles was
miutkedly less i 1992 than in O71
In 1992) Surgassa spp. (particularly 4
verrneulasiol) aid Cstaphioka app. had much
greater broimass ab some sites. compured with 197]
(see Shepherd & Womersley 1974. Table 2).
although in 1071 they were some ol the principal
tad recorded i the franseel profiles (see Shepherd
& Womersley 1976, Pigs 20 4), The difference am
hiomass Ol Saressidin spp. may be due to seasonal
CEO species
~
Oy] 20 au 60 40 100. 120
cumulative jamb:
sow
u
J
\.
number oF samples
ig 2. Sunpiled species aeeumulation curve for Els | ne
yuaatrat sumples trom St Francis and Fenelon tslinds.
Species included are eiepy cod dndertorey Wiad or 9 a
or prealer bromuss per [ome sample Samples are plotica
Hordomised order
differenees ar the times al sampling, The (902
survey Was done indune, when the literal branches
ot Sureessein} app, develop, whereas the 1971 survey
was (lone in mud-summer when the laterals ol
Sargassaue are shed (Womersley 1987). Yer neither
survey oveutred durme the period ol peak growth ol
Sureassii spp. ii spring ta carly simmer when
growth oF laterals, with vesicles and receptacles, 1
Most lux arian.
Comparison of the 1992 survey with the 2002
survey ( Lurie & Chieshyre 2003) is difficult, due te
the different sampling methods used, and the
different sampling sites, other than those in Petrel
Bay (Fie. 1). However, itis noteworthy that Turner
& Cheshite (2003) found that catiopies i) areas ol
high macroalval density abS [0m were dommiated
by a sinule venus. such as Bedlam Sevrathelte.
Cwwtophore spp. or Surgassan spp. The 1992 survey
results showed sinh’ canopy dotmipaiee of
Seviodhafia (muinky at deeper sites TS 20m), and
dominance of Survey spp und Crvreyphera spp
atoshullower sites. However Bedfaile was neta
dominant canopy species m saniples [rom any
exposure level or depth. bei ole species amg a
eanopy of mixed phucophytes at all sumpled sites
(luble 1).
Furner & Cheshire (2003) also recorded
Surgassuee spp. as Peyuent al all sheltered sites. but
seldom found elsewhere. Inecontrast, the 1992 survey
recorded Suressin spp. as Guropy comings
canopy at 10 and 15m. on the wiuve-exposed SW SL
Francis | (Table 1). Furthermore. Turner & Cheshire
did not record Sevorhidic at any sheltered site,
Whereas in L982 Severhe/ie was present on the less
witverexposed Nb Fenelon | und also in Petrel Bay.
St Francis L (Table 1).
Sperial Parterus in Sempled Species Compositian
and Richuiess
\ species deeumulation curve (lig. 2) shows the
cumulative number of species (ob ge biomass per
quadrar) recorded from L {4 quadrat samples from the
Isles. AS ho hore species were feeorded aller 44
saiples. ‘appears that ~ 100 quadiat samples are
adequate to show the major structural components of
the canopy and understorey ins the region. ‘The
existence af a plateati is siunificant as it allows better
prediction of the species richness of at) area front a
given sampling intensity, Nolte, however, that the
species list of 73 species. ts still well below the
presently known number of species (246) from the
Isles (Womersley & Baldock 2003), even allowing for
35 epiphytic species recorded by them. The shortlall ts
only partly accounted for by our sampling at only one
time of year and the omission of mire spectes of Tory
biomass, and emphasizes the need tor substantial
sampling effort to doctument the alual diversity.
Ist JL. BAKER & K, 8, EDYVANE
Similir numbers of species in the Chlorophyta and
Phacophyta Gocluding similar numbers of eanopy
phaeophytes) were recorded trom the sheltered sides
of both islands; however, fewer rhodophytes were
recorded al St Francis |, than at Fenelon 1, tor an
equal number of representative saniples from
sheltered sites at 5 — 20 m. In contrast, we recorded
more than wyiee the number of species in both the
Phavophyta and Rhodophyta trom the exposed cousl
at St Franeis |. compared with the exposed coast of
(Fig. 3). for an equal nunmiber of
Fenelon 1.
representative quadrat samples taken at 1S m. Inthe
Chlorophyta there were only 4 species on each
island. The differenees between exposed and
sheltered sites at both islands were also reflected in
the total number of species reeorded from
representative quidral sampling. with a similar total
number recorded from sheltered sites (40 und 45
species from the sheltered coast of St Francis and
Fenelon Is respectively), and more than twice the
number of species recorded from the waye-exposed
side of St Francis |. compared with that on Fenelon
1. (Fig. 3). The lower recorded species richness at
Fenelon [amongst the brown and red macroalgae
may be due to the smaller size of the island, and
hence. the reduced range of ecological conditions,
with mueh of the island experiencing moderate to
strony wave conditions, This is indicated by the
dominant canopy macroalgae present around
50
A
an
30
20
wy 10
rf
> ,» ml
[=3
w
= 80
zg ®
E ed
a
= 40
. i. i
5 = |
Chi. Pha. C.Pha Rho, All Sp.
Nig. 3, Sampled macrofloral species richness From sheltered
(orthecustern) dod wave-esposed (south-westem) sides
Of St Pranes and Fenelon Pshind. Por sheltered sites (A)
afcuch island, cight transects were samipled behween 5 1
20 y1, With Tour quadrats per transect. Vor exposed sites
(4). bars presented here for both islands represent dats
for paired transects at 15 in. with four quadrats per
transect, Chl all Chlorophyta: Pha, = all Phacaphyta:
C. Pha > cauupy Phacophyke Rho, — all Rhodaplyin:
All Sp. all speeies-
Fenelon be such as Sevodhulia dorycarpa, which
occurs on both its NE aod SW coasts
Spatial Helerauenei fi Species Composition ate
Richness
Ai the smallest spatial seale. species composition,
and to a lesser extent, biomass und “a cover, were
ruvely consistent between samples at the scale of
replicale, | ni square quadrats. The natural fine scale
patehiness of the macroalgal benthas, due to dense
local patches of either canopy or understorey taxi,
and/or naturally infrequent oecurrence of some small
understorey species, results in lax being recorded,
sometimes io high biomass, in only | 2 of the 4
quadrats. The higher the species mnehness of a
sample. the fewer species in commen between
replicute quadrats. because much of the richness 1s
F-Stress = 0.46
@@ StFrancis |. sheltered
WY St Francis |. moderately exposed
@@ Fenelon |. sheltered
H@ Fenelon!. moderately exposed
a
Euclidean dissimilarity level
Fin. 4 Non-metric mulo-dimensioanul sealing of the cool
transformed biemass data lor sheltered anid moderately
wave exposed sites at St brancis and Fenelon Islands.
Numbers refer tu replicate transects, Normalised
Ructidean dissimilarity yalues from a cluster analysis
(used its a cheek for the MDS. groupings) have been
runked und presented as u vradient of shading,
SUBTIDAL MACROPLORAL SURVEY OF ST PRANCTS & FENELON ISLES
Isa
Taair 3. Heterogeneity af macrafloral spectes fram paired, replicate transects at Scand Hla depth, from nordieeastern
side af Penedan L (St lranicis Isles). A total of four replicate (inn) ne quedrats were sampled along cach transect, Data
we aaverave Gf wer weight biomass sir, far cach set af for quadrats per transee!.
Species Sm Species !O.m
Transect | Traysect 2 Trunseet | Transcet 2
muan mean mein mean
Apjaliia laetevirens ).25 O dresehanvia conmesta 40.39 ()
Areschoiigia Congerted {).25 163.07 Ansnophviliy aletcornis 0.28 a
Ayparugapnis craita i) 474 Botryoctacdia sander 13.47 0)
Caulerpa Hexilis |24.55 T9462 Catlerpa browni? |.87 0
Calor sealpelliformis ().25 (43 Cinilerput flevilis 243,21 23.6
Conilerper sp, 5.85 OO Cosfaphera monitifera 136.21 AQLOS
Cusrapliaver hrowiall |A2S5 0 Custophara monihiformis 21.53 0
Cusvtupleara weaciiy [26.45 3514 Costaphora subfarcinatie 1) 25 i)
Crsfaphora monitilera h4h.9 IO3BK43 Delisea Irypreaides 21.14 4.07
Custuplata moniifarinis AUST VS.07 Dilophus ginntanis 0) 17.82
Custaphora pectinate 0.77 S504 Keklontica rintieta 0 37.5
Custophara subjareinara 378.25 208.43 Huliptiton roscum 178.83 0
Dilophtis fastigiats \) O25 Homovasiichis sine laivdi 0 7.57
Difoplis canis () O45 Ovmncuria prutifera Y05 62 532.67
Distroniiun multifidiun 0 456 0 Pauchydietven paniculanin 4.65 17.98
Behlonia ricdiana FLAG OQ Ploceniine mertensyi] lob 21.57
Gigertina densa FOF AV Nereaxsune decipiens: Sa4.62 ()
Halipilan roseun 16.08 15.30 Seeesswn fecerifalinn i] 25.25
Heteimcosteril fasietsticar () S420 Seenssain poedetectthinn 628 it
Lohospira bicuspicdatt 0 283 Sarewasseen varias a a7
Menrgonlolithon charaldes 28,66 Q Seereessun vereeddosun 12192 108.79
Mefagoniotithan radian $6.26 QO Sevohalio durvearpa 0 4575
Osmuncderia prolifera 23,38 250,00 Zaneried spireliv |.02 28.74
Pachyaictvar peuionlanian () 433 Total Number of Species =23
Plocemiine aneusiin O25 0)
PoC EP LENSTI () 72
Sarcassuny decipions 278.5) 434K
Sureasxunt verrucosa 2.97 a
Zonuaria spiralis 45,34 (725
‘Total Number of Species = 29
Tanne 4, Sampled macrofleral species richness at the St Francis Isles (St Franwis ane Fenelon Is.) and the livestigctor
Group (Pearson and Ward ly). Simples from moderately exposed sites have not bee inchated. Figures represent total
nunber af species recorded within cach group specified in the firsi columu, from representative dur quedvar sampling,
St Francis Isles
Investigator Group
Exposed Sheltered Exposed Sheltered
Cost Coast Coast Coast
Seagrass 2 5 0 5
Chlorophyta 4 4 IG 21
All Phaeophyta Al 33 35 47
Phacophyta (canopy taxa only) 4) 22 Is 20
All Rhodophyta dd T 103 153
Coraline Rhodophyta 3 3 + P
Total Number of Species 74 SO lou 228
‘Total Number of Species
Sampled at Pach tslind Group
aecounted for by uncammon, small understorey
species,
At the paired, replicate “transect” level, there was
also considerable heterogeneity in the muacroalgae.
Multivariate analysis of the biomass data for
sheltered and moderately wave exposed sites at St
Francis and Fenelon Islands, showed that. in some
cases, replicate transects were less similar than
transects between different islands (Pig. 4). Although
canopy species were generally common to paired
transects. understorey species yaried between
replicate transects. For example. on NE Fenelon 1.
only 48% of species (i.e. 13 species out of 29
recorded) and 35% (ie. 8 species out of 23 recorded)
were common to samples taken from pitired transects
at 5m and 10 m, respectively (Table 3).
184 Jo, BAKER & KS. EDYVANI
TABLE 3. Comparison of semplad macroflaral sper ies
ricintess at Pease dstemed, fivan the (969 and 1903
suryers, Date front the 1993 survev of Ware Isle ave
cilsee parevieded.
Poarson Poarion Ward
Island Island Island
(1969) (1993) (1904)
Phacophyta 40 37 35
Rhodophyta 99 121 129
Chlorophyta 2\ 13 4)
Seamrasses ? 1 a
Total Number
Ol Species Sampled = 162 172 {87
Data trom Shepherd & Womersley (1971)
Regional Comparisons af Species Compositian ane
Richness
Overall, macrealgal species richness recorded at
the Isles in 1992 was lower than that recorded at the
Investigator Group (Tables 4, 5). Both the 1969 and
1993 surveys in the Investigator Group (Shepherd &
Womersley 1971; Edyvane & Baker 1996 op. cit.
1999 op. cit.) showed remarkably higher macroalzal
species richness at Pearson |. than al the Isles of St
Vrancis (Table 5).
In the 1992 and 1993) surveys, using the same
sampling methods, 255 species were recanted from
exposed and sheltered sites at Pearson and Ward Is,
compared with less than 100 for the exposed and
sheltered sites at Fenelon and St Francis Is, based on
cqual sampling effort in both islanel groups (Table 4),
The difference was Jareely due to the much greater
diversity of Chlorophyta (notably Codi spp, and
A Pearson |. exposed
Pearson |. sheltered
@ Ward !. exposed
Ward |. sheltered
Waldegrave |. sheltered
HM St Francis |. exposed
St Francis |. sheltered
@ Fenelon |. exposed
Fenelon |. sheltered
—| 0) |
Canlerpe spp.) and Rhodophyta in the biyestigator
Group (Table 4), However, a higher number of seigriss
species was recorded at the Isles (i.e. 3 species
recorded, in the genera Aimphibalis, Poxidonic,
Heterozostera and Halaphile), compared with the
Investigator Group.
Species commonly recorded at the Isles in 1992.
but not at the Investigator Group in 1993, included
Scvtothalia, the seagrass Posidonig coriacea, the
coralline Meragenialithion ehara. and the red
understorey species Fpnreioclacdie usnea and
Euptilota articulate.
In terms of overall macrofloral species
composition, the Isles are clearly distinet frony the
Investigator Group (Fig. 5). Additionally, results
from multivariate analysis indicate that the
difference in macroalgal composition between
sheltered and exposed locations is less than the
differences between the two island groups. This 1s
expected, because local-scale influences such as
wave exposure are less Signrlicant when camparing
floras over regional seales,
In contrast to the canopy composition of the
nearshore reefs at the [sles (Table [), the nearshore
reers Of Pearson J. in 1969 were dominated by
Ecklonia, Acrocarpig panicilatr and mixed
Cysfophora species (Shepherd & Womersley 1971).
This was also observed in the survey of the
Investizator Group (Pearson [., Ward 1. Waldegrave
1) in 1993. Further, while Searvassine spp. were
common canopy speeres al the Isles. this was net so
in the Investigator Group.
F - Stress = 0.044
Investigator Group
A
| ee
Nuyts Archipelago
Waldegrave Island
ty
Mig, 5. Variation in the marine benthte floral species composition of the St Franets Isles and Investigator Group. MDS
plot was venerated using pooled species composition data for 56 samples.
SLBTIDAL MACROPLORAL SLEAVEY OF STTRANCTS & PPNDT LON ISLES bss
The common understorey tasa were generically
quite sinilar at beth istand groups. and mum,
comprised species of Carlerpa and Plo dium, and
the ted alga. Osanmehirie prolifera. althoes
composition of the understorey was richer al thy
Wivestigiator Isles in both biomass and species. as
diseussedl ubsve.
As imight be expected. sampled istands al the Isles
hid more Species in commen. compared with islands
between the two groups (St Pranets Isles and
Investigulor Group), When the macroalgal speetes
from the upper fid-sublittoral cone are exammes
(based on samples from Son and 10m depth, from
sheltered siles) similariny is geeater within stan
groups. For eximple. St Prancis and Pernelon ty din
S5%) species in common. Whereas St Francis and
Pearson Thad onty 22" speeres in common, ind SI
Pan
Hrancis and Word 1. only 13") io commen.
Discussion
Mucrualgal Brawengrapliy al St Prancrs fslus
Phe mune fora ol South Australi Hes within the
leniperate Flmdersian Province und contains elements
of both the cold temperite biota of soulb-custern
Austrafia vast of Robe. and also the iransitionalwarm
lo cobl temperate bint UF Sourh-western Auswali
(west of Robey (Womersley 1990). The Isles, located
i the torth-eustern GAB have distinctive western
Flindersian, or warn temperate, clenients to the broly
typical ol south-western Australia.
Species with a westerly disuibulion are comiman
orwave-exposed reefs at the Isles. Eaamples mehide
Myriedesme durvevenior ja the upper sublittoral
(shepherd & Weimemicy 1976), and. to the mid
sublittaral, Sevveaténedlicn dnd Seeuerswi spp
(particularly fre the subsets Euserseosenr. The
Bens Cyslephors is very diverse amd commort ab the
Isles. with species That are common ty eastern ani
western waters. Sevwotltalie. Reklonia. and
Civrophora spp. and Sceuassyan spp. together form
Ihe minor structural components of the reel svsrem
(sue Shepherd & Womersley bO726. Turner &
Cheshire 2005) Thos the western and eastern coasts
othe GAB have close hiogeovraphie affinities sine
they share many dominant inaccoaleae on reel
(Kendrick 1999).
Ari finerscdle. the fsles fall within, and are typical
of the Marat Bioregion. one of eight “meso-seale™
biogeovraphie reviuns recowmsed lor Sauth
Australia (IMCRA Techpival Group 998: flyyane
1999). Yet the differences bebween the Isles and the
Investigator Group demand explination. The
Investiauor Group may be mflueneed more by the
segsonal upwellings i te caster) GAB (han the
moce northern Isles (Wenptiey ed, $990), and also hits
cleaner walers und thus high light penetration with
depth (Shepherd & Womersley 1971). providing a
rrcater diversity of habitats for algue.
The upparent absence of derecuipig i the 197),
amd (his, survey. but its Oevesianal presence in 2002
(Turner & Cheshire 2003) and its dominance at
Peurson L. suvvest that bioveagraphie lietars. such
ds Jarte-suale (bieregional) temperatuve patertis
rather than local effects are responsible for the
differences. demvewrpid ys un castem Flindersian und
Maugean species (Womersley 1987), aear the end of
jis range m the eastern GAB, Where Muctuations in
abundance mizht be expected, Another major
difference. the dominance of Sevrethatia at lam
20m deep atthe Isles but its apparent ubserte tron
the Investigator Group, excep at 300 50 mm depth
(Shepherd & Womersley 971) iy -puzeliny,
Soviotiia has a broad Plindersian distribution
throughour southern Austalia (Womersley L987).
The depression Of ats upper depth limit may. he
related 1o ocegnagraphie eects aud the higher water
(riosparency al Pearsen L tShepherd & Womersley
197) 1976),
Maeraiteaul Loration Patterns
Numerous southern Australian studies have found
changes io macrodzal compasiion, especiully
canepy spcvies. long depth dnd water movement
ptadients (Shepherd & Womerstey 1981; Collinus &
Cheshire 1998; Edyvane & Shepherd 1990: Turner &
Cheshire 2003), Collings & Cheshire (1998)
proposed a feo index (ri OF Custapliona to
Surtessha) biomass), which declined wilh deetaiig
wave ener, They also noted thal derveurpas ind
Sovturidia Crstagiora spp. and Sefreencous, and
Sooheria were sequentially dommuant don the sme
uradient. The authors acknowledged that the scheme
did nol seem (a apply to the {sles’ macrouluae us
desertbed hy Shepherd & Womersley (1976) This
study reinforces that view. bul mat beesuse af he low
biomass of the two gener in sheltercd habitats as
Collmys & Cheshire (1998) sugvested, This siudy
found High algal biomass ar expused and sheltered
sites. but found na consistent pattern ef sequential
dominance of erher canopy species us supested
(Table 1). Thus the generalisations proposed by
Callmys & Cheshire (19498), cluding thew turther
supeestion that macrodlgal Aiodiass inereases with
Mepeasing wave exposure. thay be yala for central
South Austoalia coasts. hut seem inupphicable both
to these Isles und to the Investigator Group (see
hdyyane & Baker 186: ope, W980 ep ett. tur
summary results from ihe 1993 Investigator Croup
survey). At bioregrmal seales, temperatiire and
nutrient differences. are mai factors intlucnemye
Mmacroulgal conmposition (see above) und. biumass.
defculing allempts to veneralise aeross broad scales
(see Selel & Poster 862 Womersley LYX7),
(Sh |
Speetis Riotwwss aml Spatial Melerogenetty tn
Species COMposiall
While the spevtes richness of the Isles is bith, witlt
246 species (Womersley & Baldoek 2003), itis less
than other well-studied sites like fhe Inwestigilor
Coup (see ubowe) or Waterloo Bay with 364 species
(Shepherd & Womersley 1981). The species
accumulation curve, the first published for southern
Australian alual habitats, is valuable us it indicates
the extent of sunipling clfort required) toy estimate
species fichness ol just horizontal rucky substrata
Phe usyniptote of (he species decimation curve
after a very large sampling elfort of almost [00
quadrats Myell sugeests that many species in these
habitwts are comparatively rare (Thompson &
Withers 2003), Yet the species total is still only one
third of the tolal knowe species. ignoring the 35
epiphytic species recorded by Womersley & Buldock
(2003). This suggests that many other species have
cither very low biomass or are found only in
restricted habihits. Sites with high species richness
usually have myny rare species (lubbell 2001).
The bigh fine seule patehiness of benthic
macrouluue. particularly in understorey tiga at the
Istes, no doubt reflects the complex interplay of
many pliysical and biotio factors, In addition to those
refarred to above, storm events. sediment, abrasion,
jnleractions benween canopy and understorey, and
wraging all pliy a role ih the dynamies of algal
assemblages (reviewed by Schiel & Fuster 1986,
Schicl 19S&, 1990) Kennelly L989), The site rarity of
Winy Understorey species, and the variuble
ubunddnees of others. ay deseribed i this. paper,
BABER AK OS, EDY VANE
demand greater efforts i multi-seale sampling aver
snpive and time (Coleman 2002), und the
development of more robust methods of analysis. tu
better define assemblages and deseribe tenpors) and
spatial patterns i) mertoalsal composition une
rehness,
Lastly, Te results of this survey imply that farther
stiidies of mucroalyul composition und bioniuss are
required over a range of depths and wave-exposure
levels, in diflerent regions of Saulh Australia ih
patterns of species tichness and relations belween
cunopy composition or biomuss and wiave-caposure
are to be eluendated,
Acknowlodements
The tuthors thank Dr Scoresby Shepherd lor luny-
lorm encouragement i the publication of (his paper,
for invaluable assistance in reading und editing
dralis. and forsugeesting additional analyses, We are
vreatly indebted to Professor Bryan Womersley lor
many algal identifications. Thanks tu Giovanna
Lorenain, Anette Doonan. Val Boxall aml Deborul
Nias for ereating the berbarium sheets, and Annette
Doonan for Wentitying sessile invertebrates. Thanks
also to Deb Nias, Andrew Dalgetty, te lite Kevin
Branden and Brian Davies for diving und serting
ussistinee fit the field, and ta the erew of the
RV Nuerir, We also aratelully acknowledye
ovironment Australia and the Agstralian Heritage
Commission for funding assistance throughout the
South Australian Marne Benthie Surveys Program.
uf Which these surveys lonned a purt,
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ISL.
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST
FRANCIS, SOUTH AUSTRALIA: PERACARID CRUSTACEAN
EPIFAUNA OF SUBTIDAL MACROALGAL CANOPIES
By A. J. Hirst’
Summary
Hirst, A. J. (2003) Encounter 2002 expedition to the Isles of St Francis, South
Australia: Peracarid crustacean epifauna of subtidal macroalgal canopies. Trans. R.
Soc. 8. Aust. 127(2), 189-203, 28 November, 2003.
Peracarid crustaceans were quantitatively sampled from macroalgal canopies at six
subtidal locations, indicative of a range of macroalgal community types and exposure
to oceanic swell among the St. Francis Isles, South Australia. The peracarid epifauna
was dominated by gammaridean amphipods, and was typical of southern Australian
macroalgal communities: however, the fauna does exhibit clear affinities with south-
western Western Australian fauna in terms of species composition.
Key words: Peracarid crustaceans, phytal epifauna, amphipods, macroalgae, southern
Australia, ANOSIM, algal-faunal habitat associations.
frammaedans of the Raval Sect! ofS. lund, (2003), 12724, 189-208.
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA: PERACARID CRUSTACEAN EPIFAUNA OF
SUBTIDAL MACROALGAL CANOPIES
by A.J, Hist!
Summary
Misr AT (2003) Encounter 2002 expedition to the Isles at St Francis. South Mustralias Peracarid. efuistacenn
epibid ab subtidal macroalgal canopies, Leas Ao See SX dest 12712), 189-208, TS November, 2003,
Perocunidl cfusliccuns were quuntiiilively sampled (hon iiacroulal cunupies at six subtidvd loualions
nidicalive oF a ninge oF nierosl eal Community types and exposure tu oceanic swell among the St. Francrs bshes.
South Austialia, The poracaricd’ epihiuina sis dominated hy yunmaridcan amphipods. and was typical of
southern Australia macrodigal conmiunities: however, the (ilina dows exhibit cleat atfinities With snuti-ewestern
Western Austin find iT fers Of species composition, Alarme pereentqve of the lian could pot be identified
heyond the Benus level, and wadoubledhy These galtechions, (he first from (his cared. vontain muny new yn
Hideserihed species, Groups derived fron i) elissificution of macroalgaliussembliies, and bbe pclaece halite”
designations generally performed poorly ty diseamiminy epiliinal assemblages. particukirly when contrasted
ayainst site differences, Differences between sites in terms of faunal composition could be consistently related
to gross differences in site exposure As d Consequdhde, stiles with) siyolir levels of exposare (o oceanic swell
showed the least sepanution, while sites will ypporing oxposure regimes disphiyed the greatest separabions (ris
yuclear From this study whether these changes are due to physical changes in canopy strueuve or shits in
wyailable food pesourees alone such a vradient. hiwever the former is considered inure likely based on the
changes io lianal distribution observed,
A list ol peraearid eristicean fut collected is iietided
Kry Wrrgnss Peracarid crusticciis, phy bu epifiaina, amphipods, umicroatlac, southern Aiasteatia, ANOSIM.
wlsal Huma habitat issoeiitions:
Introduction
Poracird erustueedns (such as amphipods and
isopods) are un abundant and ubiquitous launal
component associnted with marine miveroalgal
COMMUTUeSs OH lempenite reels throughout the
world (dear & Moore 1986). They share a direet
developing (brooding), nowplanktonie Te history
which distinguishes them trom many other nrarine
invertebrates (1c. those wath plankionte hirvae). This
distinction leads to both highly localised recrunment
and poor dispersal among species, amd in purl
explains both the remarkable evolutionary stievess ol
this wroup (> 2300 species Australia-wide, Poore
al. T002> Lowry afoul 2003) and the numerical
dominance of peracirils anak muny marine
CUIVIPOTIDI CHES.
Marine macrophytes ate import habitat-lorners
i the subtidal. providing Unee-dimensional
complexity und structure for a range of free-lwiy
and sessile epifaunal and epiphytic organisa, A
number al studies have deseribed the compusition
and biglowy OF eprtiundl communities assooiuted
with seagrass in South Australia. This research has
Highhiehted the iiporiinee of seawrass as sources ol
both habitat and fowd fora range of commercially
Svlihel it Biolapwal Scietees. Vie Pyindees | niversiy el Saunt
Austeiliy GPO. Mis TOO Ndohnide, Supilr Austad 2g0t
Hportint species Connolly 199du.b) but has
equally raised concerns about the diminishing extent
Of seagrass ceosystems more broadly (Sergeev v/
wf TYSS). Tn coniparison litt: is known about the
ceology of eprliunal assemblages associated with
subtidal reef communities in South Australia, 1) spite
ofthe fact that rocky ree! communities may equally
be suscephible to buiman impacts (Cheshire er
af LOOX), Despite their relatively small size, mobile
epifaunal organisins vontribite subsuintially to @
riuige OF key ceosysiem processes on rocky reels.
They are major contributors to the Mux of materials
on reefs (Miylor 1998). coupling benthic-pelagic
productivity’ through suspension feeding, and
account for ua high percentage of tatil secondary
productivity (Taylér (998). Tr Lun, ep riuuine are prey
fora range of higher wophie levels parhicularly reel
fish (bdgar & Aoki 1993) and, (hough eraving,
influence the structure and productivity of subtidal
macroolgal assembhiges (Dally & bey 2000; Dutlhy
chal 2001). Minally, epifianil exeretory products
provide an ubundant and aceessible source at
nitrogen for algae (Taylor & Rees 1998), a salient
point i) local coastal waters rat are typieally
nutrient poor (Rochford }9s8t),
Although itis a relutively sintple tisk to deseribe
oF map vewetiled subtidal habitats on the basis at
theie dominant species (Turner & Cheshire 2003).
there is Mile informanon regarding whether such
{ON AL. HIRST
proxies convey Mfurnidion about the diversity and
composition Of gssociued (faunal ar ulgal)
assemblages, or represent distinel tabltets iy their
own tight (Wand er af 1999), A recent broud-scale
auivey ol'Nhallow subtidal habitats in Vievuria found
that dominant Veyetation patterns explanied
macrolaunal and algal assemblage composition
more consistently than differences in exposures
substrate, depth op geographical loeation (O° tara
200T) This study considers whether such putters
apply al smaller seales (ic. reefs separnted by kin,
compared to H008 oF kin), by comparing (he
stiilivity OF perucarid and ala) assemblages at six
Jocations throughout the St. Francis Isles group.
South Austalia, Amphipods, in particular, fuwe
been shown to muke specific hubilal choices, both in
relution to algal complexity (Hacker & Steneck
(990) and species identity (Poors & Stembers 1999,
Sotka ef af LO9V: Poore et af 2000), tod therefore
peracarids appear a goad group: fo test these: ides
inare generally. Highly localised reerufumenr as a
consequence Gf direct-developmien! may alsa
retiforee such fabitat choiees.
This work represents the first quantitatyye
vecount ab Lhe composition of macrualeal ep iiuna
in the coastal waters of Soul Australie. by additian,.
this study is the first to colleet epitoumal material
Irom the Nuyts Archipelago (W. Acidler pers.
conn). and ealleetions. fromoreef habits to the
wustern Creat Australi Bieht are generily sparse.
Khe anne of this study were: (1) fo colleet motile
epiliunal muteriad from a range of subtidal algal-
dominated Imbilats within the Sh brangis Isles
eroup. and (2) through the siutineous volleeriing
of in with faunal and) floral material allow
quantitative deseriplion and comparison of benthic
alpal und cpifaunel peracariad assemblages, Hort as
possible ta prediet banal assemblage stueture
tron benthie atheal composition, (hen groups
formed on tie basis oF algal composhon may he
expected la explain similar or greater levels of
similinily between faunal samples than those
aiiribuled (O ihe Spatial proxmmity oF sampling
alone, To test these idens explicitly, T have ised
analysis of sanity CANOSIM) tests lo contrast
porscund (unl assemblages geaaped an tte bisis
of location, habitat type (broadly delined on the
basis of initial observations) ubd plea dssemblage
COLIPOSTUON
Methods
Sn) Siew itu Scrmpline Merliedls
Algse and eottinnd were collect fant ses
sublidal loculigns between 2) 24 Pebryey 2002
(Vie 1) Sites were chosen lo spun a muige of
exposures to swell and vontrastend) prevrowsls
Jeseribeil moaeroulgal hubilats (see Shepherd &
Womersley 1976). Che sampling design this browdly
conttasts subtidal habits daminated by fucaid alsue
(Suraussian and Crxfaphore sppoe with labrtats
dominated by the pohust brown aluae Sevetifice
dorvcarpa and/or Boklianmie redline (Le. av priert
habitat groups. see Table 1) The anixed fiend
issemblages sanipled at bast Point (EP) and Past Hay
(VB), SL Francis Isha were bolt located on lowe
relief reels at the north-eastern extent of Sh. Francis
Island, and ure largely sheltered thom the prevailing
strong, southwesterly swell, Fiicoid-deminated
isseniblages sampled al reeling Ishind (hl) were
located wilhinal semi-protedted, shallow embaynicnl
on the nomthens side ol the island and qe subyeet tu
oderale Wave chergy, Sevrorteatia- wad Bektonte-
dominated assemblages (Table 1) were sumplest froin
imure westerly faeiny roeky outeraps will) greaher
inelimition (reels sloping abruptly tow depth af ubout
20 25 Wi. and ji sone cues Consisting Of horizontal
rocky sleps) and exposure (9 oceume swell.
AW samples were ealleeted from herigarial
surfaces al depths al = lO in well below the upper
sub-littoral vore (Shepherd & Worersley LO7O:
Wonersley dé Kine 1990), ehablie dincet
comparison of samples and locations, Depth ties
heen shown ehewhere to iriluenee upifaumal
struectute beth iy terms OF faunal Composition (Luar
(O83) inal abundance (Taylor & Cole too), At cael
location, den 625 cov ynodrats (25 4 25 en) were
huphavardly sampled owithiaw oan urea al
Approximately, LOnn> using SCL BA. Cunopy alee
(uppers vind mid-strata ag defined by Shepherd &
Womersley WK1) were varefiilly removed Hom the
substruie by hand op using a krife. aod) promptly
paved into seulbble | oamemesh bags. Kelp-like
ileae such as Aed/onia reediete oe Novtotholin
duryearpa were removed abeve the holdtast
Collucted mutenul was subsequently preserved it
S% hullered lutmaldehyde jn seawater Three
saniples (ing trom each al Wi NP St see Table
| for codes) were hater excluded die to dilieulies
CUTE Sainpling or sample processing,
Pau debeined ona Eni Mesh sieve Were
separited Hrom aleac through repeated washiine, ahd
transferred to 70% elhanol Alwoe were tdenuiftied by
species (where possible) and weighed following
drymig ab BavC for 4a hours. Alt youehes
eolleetions were preserved on herbaria sheets at ut
Sy Jortuldehyde solution, Peracarid: crustacedtes
were sorted to inerphospecies wud enunierated,
Identifieations were nade using arabe of literature
and web-based iotermelive keys (Lowry &
Sprinuthorpe 2001). Acne of ulwal and crusted
WHORL Was Seno FenOMnie spoectulists ai (he SA
Hycdiversiny Cente (Plorbariiin), Muscane Victara
anlthe Sustralie Museu fog farther identi tigation
CRUSTACEAN EPIFAUNA OF SUBTIDAL MACROALGAL CANOPIES
19)
N
NPe
Wle
West Island
Egg Island
St Francis Island
Fler
Slef
EPe Dog Island
@EB
ra)
2km
Pig, L Location of sites sampled during this survey. Site codes as used in Table 1.
Taser |Site information for six sidbtidel locations sampled. Site codes as used in Figure 1 und throughout text.
Location Site No. Depth Habitat type bxposure
Code quadrats (1m)
East Pt. Petrel Bay. St, Francis Is. EP 10 12 Mixed Fucoid! Sheltered
Rust Bay, St. Francis Is, EB 10 y Mixed Fucoid/ Sheltered
NW Freeling Is, FI 10 x Mixed Fucoid/ Partially sheltered
NE Cove. West Is. Wi 9 1 Ecklonia’ Partially expased
North Point, St. Francis [s. NP 9 9 Scvrothalia! Fully exposed
Western side of Smuoth Is, SI 9 9 Sevrothafia! Fully exposed
Data Analyses
Faunal and algal sample-by-species matrices were
analysed independently using similurity-based
measures in the PRIMER y5.2 statistical package
(Clarke & Warwick 1994). Similarity between
samples was calculated using the Bray-Curtis index
of similarity on square-root transformed algal
biomass and log |[(x + 1)] faunal abundance. Such
translormations are commonly applied — to
multivariate data sets, and in this case serve to down-
weight the contribution of abundant relative to rare
taxa during the analyses.
Algal samples were placed into groups using group
averaging hierarchical cluster analysis, and group
composition was inferred from — similarity
pereeniages (SIMPER routine in PRIMER) derived
for cach macroalyal species (Clarke & Warwick
1994), Faunal groups based on a) location (samples
within sites). b) a prinri defined habitat type (see
Table 1) and ¢) post hoe algal assemblage structure
(derived from classification of the algal samples)
were compared with one-way analysis of similarity
(ANOSIM). The R-statistics calculated were
assessed comparatively. and no level of significance
was assigned to these tests because the survey was
not orthogonal. precluding the separation of
coyarying variables. Two-dimensional non-metric
multidimensional scaling (MDS) ordination was
used t6 aid visualisation of multivariate patterns in
faunal assemblage structure.
Species accumulation curves were venerated by
the EstimateS 5 program (Colwell 1997). In all
species accumulation curves, the order in which
samples are added to the total affeets the shape of the
curve, To eliminate this problem, curves were plotted
using randomised sample estimates of species
192
richness (7 = 100° randomisations). Species
uccumulation curves for the algal and faunal
sumples were also compared to Chaol estimates of
maximum specics richness (see Colwell &
Coddington 1994), The Chao] estimator 1s a non-
parametric method of estimating true species
richness in an assemblage based on the number of
rare species,
Chaol = Sy. 1 (a2/2b)
where S,,. is the observed number of species in a
sainple, a is the number of observed species that are
only represented by a single individual in that
sample, and b is the number of observed species
A. JTURST
represented by exactly two individuals in’ that
sample, There are a number of other estimates for
extrapolating maximum species richness from
sample data, but Chaol is the one currently favoured
by Colwell & Coddington (1994), and has been
shown to give robust and reliable estimates when
applied to a number of different data sets.
Results
Mucroulgal Assemblages
A total of 34 species of macroalgue were collected
during this survey (Table 2). Cystophora monilifera,
Sargassum varians and Scvtothalia dorycarpa were
the most commonly encountered algae, but were still
Tapun 2. Mrequeney ef macroalgal species across sites faceurrence — no, quadrats), All macroalgal divisions are
represented incliding P: Phagophyta, Re Rhodophyta ane C> Chlorophyta. Algal species are shown in decreasing vrder
of total frequency. Blanks signify absence from samples.
Species [Division] EB EP Fl Wi NP SI Total®
a= 10 n=9
Cystaphora inanilifera [P| 2 + 7 5 1 2 2|
Sargassum vartans [P| 2 5 8 5 20
Sevtureatia dorvearpa [P| \ ] ) 6 17
Sargassum lacerifaliom [P| 7 3 | 2 15
Plocamium dilatatun [R] | | 2 4 6 14
Eeklonia radiata [P| 2 ia 2 3 13
Conlerpa flexilis [C] 5 1 | | 4 12
Sargaxsin sp. A [P] 4 5 2 I
Sarsenssum vad. (broad-leayed) | P| 1 2 2 | 4 th)
Zonaria spiralis (Py 3 | 3 3 10
Hyprea rumennicea [R] 4 5 9
Lobospire hicuspidara (P| 2 | 4 | 3 9
Sargassum verruculosum [P'] 5 | 3 y
Delisea hypnoicdes |R| | 5 2 5
Osmundaria prolifera [R| 4 | | 6
Sargassum decipicns (P| | 3 | | 6
Dietvota racicens [P| 2 2 ! 5
Cystophora moniliformis [P| | 2 3
Delisea pulchra [R| Z | 3
Dietvupreris mucleri |P| 3 3
Corallina sp. [R} & 2
Pachyaictyon paniculahine [P| | | 2
Plocamium meriensii |R| | | 2.
Soliera robusta [RI | | 2
Callophyllis rangijerina [R] | |
Caulerpa xcalpelliformis [R] | |
Craxpedocarpis blepharicarpus [R] | |
Crstophaora enspidata [P| | |
Cysrophora pectinata [P| | |
Dasva sp. [R| ( |
Cloiesaecion Arownii [RY |
Halopieris sp. [P} \ |
Prevaclacdia lucie (R] | |
Sargussum sp. BP] | |
Site lotals 15 \4 17 \4 5 14 34
*N — 57 quadrats; EB, EP. FI= 10, WI, NP. ST=9
CRUSTACEAN EPIFAUNA OF SUBTIDAL MACROALGAL CANOPIES 193
o 150 —
~~
4
2
ue)
> 400+ L |
uv)
u)
o
5
-4 50 .
ay i
- a Cl A
©
m Z | T
co L
eG
|
EB EP FI WI NP Sl
SITE
Fig, 2. Boxplots showmey total algal biomass (2 drv wt
quadeat') across sites mt order of increasing exposure.
Horizontal lines are medians. boxes are imterquartile
ranges. and vertical bars are ranges excluding outhers (*),
Tani) 3. Cumulative similarity percentages (SEMPER) showing macrogleul species which contrihule
willaa each cluster group (el
present among only a third of the samples, and the
distribution of these species varied widely between
sites (Table 2). Although brown algal species of the
orders Fueales and Dictyotales dominated the algal
canopy (18 species), red and green algal species such
as) Plocamitun spp. Typrea ramentacea and
Caulerpa flexilis were also lrequently found among
the samples (incidence > 9 quadrats). Many of the
species. (17) listed in Table 2 were only rarely
encountered during sampling (incidence <= 4
quadrats),
Brown algae also dominated the canopy in terms of
biomass. The mean dryweight of brown algae (34.4
» quadrat!) substantially exceeded that of either red
(4.2 2) or green algae (0.4 2). Total algal biomass
varied significantly between sites (fs, = 2.84, P =<
(0,05); however, no consistent trend was evident (.e,
covarying with exposure), In general, samples from
NP and FI had the highest biomass (Fig. 2). There
was little variation between sites in terms of species
richness (14 — 17 species per site) (Table 2),
Cluster analysis broadly split the samples into five
groups on the basis of sample similarity (Fig. 3). The
> AM similarin
EE). Similavin. percemazes were calculated using Vv transformed algal hiemuass data,
Groups are ipified by species with high (> 1) similarity perventage/SD (similarity percentage) ratios (Clarke & Warwick
1UQ4),
Species/Group Mean SvSD(Si) Cumulative
Biomass Sim’
(g dry wl. quadrat!
Group A (16 samples)
Cystophora monilifera 29,5 442 TALb
Sargessnit vartans Td 0.93 93,04
Total biomass 4.4
Group B (10 samples)
LEeklonja ractiate 343 3.66 S417
C. monilifera 4.0 O.38 89,56
‘Total biomass 40.7
Group C (5 samples)
Sargassnar und. o.0 OM) 46.88
S. verdes 73 1.07 RSOS
Zonaria spiralis 4.2 32 96,52
Dictyopterix nnellert OS (32 1000
Tolal biomass 26.4
Group D (11 samples)
Seviothalia damec pe 304 +ol SNS
Plocaminum dileataliun 23 O56 95,36
Total biomass 48.9
Group E (16 samples)
Sargaysi lacerifalinn +8 U.68 36,11
Sargensuay sp. 4.3 0.49 S750
S.verrveulasin 28 (1.35 69.77
Delised Ivipitoides 13 (36 TS 44
Total bromitss 47
194 A. HIRST
first division with the dendrogram splits group E
from 4 groups (A — D) of varying size. All groups
diverged at between 10 — 20% similarity, and most
samples within groups exhibited greater than 40%
similarity (i.e, linkages). Group E includes samples
from mainly EB and EP. sites, which are
distinguished by the presenee of a Sureassiim spp.
dominated canopy (Table 3). Group D consists of
samples from NP and SI sites dominated by the
robust brown alga Seyothalia dorvearpa. Group C 1s
the sinallest group and comprises samples from three
sites dominated by unidentifiable broad-leayed
Sargassum plants and §. varias. Group B consisted
of mainly samples from WI characterised by the
presence of £. radiata. Finally, Group A consists of
an assortment of samples from different sites
characterised by the presence of C. wonilifera, In
general the identity of the groups appeared to be
driven by biomass-dominant species (Table 3),
0 20 40 60
Peracarid faunal assemblages
Seventy-eight peracarid species/groups were
identified among the samples collected during this
brief survey. The peracarid fauna was
overwhelmingly dominated by amphipods. which
comprised about 80% of the total individuals and
more than 70% of the species collected (Table 4).
Amphipod species belonging to the families
Ampithoidae. Aoridac, Dexaminidae, Eusirdae and
Melitidae generally dominate the canopy in terms of
abundance, Sphaeromatid isopods (10 species)
dominated the isopod fauna but the most abundant
isopod species found was the closely related
Plakarthrium australiensis. Tanaids were not
abundant; however, the sampling methods used in
this study may underestimate the abundance and
diversity of tanaid crustaceans. Tanaid species are
largely meiofaunal (i.e. many individuals may not be
retained on | mm mesh) and the taxonomy of this
sing
51D2
EPO2
NPOS
FIO) ,
coos = GroupA
Flo4 a open
Flos C. monilifera
Fi0s
Flog
EBOS
EPO4
wid
Fi10
pore be sere be sareneres= =we- > -
wiog
103 .
xpos. = Group B
SIDS + +
wis 6. radiata
win
wide
Fis
S108
pa i me wos. .
NPAO c
FIO? an :
for Group C
EROS
+--+ +--+--+------------- =P03---
NPOR
sia
NPOS .
Neos Group D
siege = Seprothalia sp.
epor Group E
Enos © Sargassum spp.
80 100
BRAY-CURTIS SIMILARITY
big. 4, Cluster dendrogram ofall macroalgal samples, show major clusters characterised by dominant alyal species.
CRUSTACEAN PRILAPSA OF SUBLIDAL MACKROALCIAL CANOPIES 195
in 150 1 T |
ae)
act
ia
TS
D
© 100
wo
en
yy =
0 ‘
5 50 i : :
a
Q——- =| a | 4].
EB EP FI WI NP SI
SITE
hi ok Bosplots show tage a@bundinee of perucurtd
crustaeeues (0, quad) ) aeross sites da onder al
hiereusing exposupe, Poricontal Hes are medias, boxes
are interquartile minges, aad yvertival bars qe ranges
excluding outhiers (7),
wroup is still very poorly ubderstoud ti Austrailia
beyond the lamily level, Only the distinelive Tiny
sp. vould be idemified beyond the family level,
Despre the best efforts of the author and the other
laxononmic speciilists employed. only approximately
50% of the fina could be identified to species, anil
some specimens collected could not even be
ussigned to existing gener. Many of the ampithoil
species, for exdinple. have only recently heen
described anu named (Peart 2002),
Tole 4 shows the distribution and abundance el
73 pereund taxa, An additional three genera and
four species were identified among the ampithoids
und three speetes among the anpithoul genus
Cynniehisa (R, Peart, pers. comm.): however these
species could not be ineluded because the wather
vould not rebably distiwoish then during sorting,
The uorid uniplipods lorc vraevifefet and Bomlos oF
ix Could only be relinbly identitied fran mute
specimens and therefore porids were also lumped
during His stidy, and the presence of (hese species
wus jnidieuted by the identifieation of mates
specimens only. Sphaeromatia apods (UO species)
wid ampithoid (9) und desamind aniphipuds (7)
were The most diverse perdvearia fimilies colleeter!
amon He aunopy, Parcdexceme was the (ust
Uiverse Benkis, representad by five species,
Peravarid abundance varied considerably within
und hemween sites (Vip 4d Overall Gamal aburrdanee
appeared to deelme with teremsii site exposure
(lel) Lo tight aeross the plot). This trend does aur
appear lo be naked to variition i) algal biomass
({here was no similar trend see Pre. 2), and peracurid
abundunhee was not correkited with algal biomuss
amons the samples (Pearson ¢ — 0,09, NS). ‘The
distribution and wbundince of periearat species
varied considerably between siles (see Table 4) ane
the extent of these diflercnees is clearly allusteated by
the ANOSIM site comparisons shown i Table 5,
Over] separition belween fil assemblises
was preaest between groups delined by site (A =
0.508), mither than groups defined by paw fac algal
asseniblage composition (Ro O347) ar a priors
habitat type (2 0.351), Pairs of sites Irom (he Teast
(bPoand FB). partially CEL and WH) and most exposed
(NP and SE) locations displiyed the greatest degree
of similarity by faunal dssemblage structure (A 0,3)
(lable 5), Conversely, the greatest deeree ol
separation oveurred between the same dhree pairs oF
sites, und these graups can be elearly identitied Muin
the MDS (Fig. Sa), Consequently. habit differences
cin be discerned (ig. Sa); however the overall
separation of these iwo groups was not high because
the faunal assemblages trom bound WH lurtely
overlapped. By comparison post hoo algal groupings
failed io distinguish the fii anywhere near as
consistently as site diflerences (Pig. Sb), The best
diserininitian occurred between groups
(Sureassuin spp.) und 1 (Seprathalia sp.) while the
fiuios from groups A abd B appeared turmely
identical (Table 5), These differences retlected those
above. and reinforeed the weneral finding that
Jucuhities with differing exposures not onky have
different macroalaal dssembkwes. bul alse support
distinel pertenrnl Hida) assemblies,
Species ooumulation Caves
The species aecumulation curve for the faunal
simples (Sy) clearly approaches the Chaol (ST)
estimate pf maximum speeies richness. both
USYITIPLUNe ub upproximitely BO taxa (Lig. Ga). in
comparison. the Chuo estinvite platted: far the
macrowleal clalit continues (i climb and shows no
Sign of levelling-oll utter 57 simples (Pig. 6b), There
is Hillle indiculion thal the species jeeumulation
corve and Chao l estimate are converging atong the
pul samples, Phys the cree’ diversiiy of shallow
suiblittoral algae among these six locations exceeds
the limited dumber of ulgal spevies cohleeted during
this study. Studies that ave rhude (ove extensive
collections of the miteroalwue of the Isles of St,
Praneis have recorded more than 240 spevies:
However, this includes species colleered Mon a
runge ol habrhats anal depths beyond the scope ol the
present study. but nonetheless gives a midieatian (1
the richness of the benthig flora (see Shepherd &
Womersley 1976; Womersley & Buldoek 2004), By
compirison, the Tiinelsainples appear bo be a tere
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CRUSTACEAN EPIFAUNA OF SUBTIDAL MACROALG
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Species
Group Family
Suborder ASELLOTA
Joeropsididae
Stenetriidae
AO) HIRST
reliuble estimate of species richness umong these
a habitats (Fig. 6a), Species accumulation curves
ordered by Jocauion along a gradient of inereasing
exposure (see Table | and methods) show a greater
1 turnover of species among the algal samples (Pre.
7h) when compared to the peracarid faunal samples
(hig. 7a).
200
7.6
1
11.2
2
10.9
4
5
9
3.4
63
Discussion
ty
\
7
3
467
os | Fauna! Composittan
This study is the first study to document the
mobile invertebrate epifauna associated with
macroaulgae from South Australia and the Cireat
Australian Bight (GAB), It also is one of few studies
(9 document invertebrate assemblages /rom
Australia’s offshore island habitats. The fauna of the
Nuylts Archipelago resembles epifaunal assemblages
found at other temperate coastal locations
throughout southem Australia and NZ. The fauna,
for example, is. dominated by gammaridean
umphipods und contains many of the sume common
genera found among Tasmanian (Edgar 1983), NSW
(Poore er ai. 2000) and New Zealand (Barnard
1972a: Taylor & Cole 1994) ree? faunas.
While many of the amphipod and isopod species
found were typical of southern Australian
macroalgal communities. the Nuyts fauna alse
clearly demonstrates some affinities with the Jauna
of south-western Western Australia, Three
amphipod species collected during this study:
Tethvgeneia nalea, Austraphenoides moundoe and
Paradexamine marlie, have previously only been
recorded from south-western Western Australia
(Barnard 1972b). Epifaunal amphipods collected
trom Pearson Island = 200 km south-east of the
Nuyts group in the Great Australian Bight alsa
exhibited a similar pattern of distribution (Barnard
1972b), The GAB is characterised by a
predominantly eastward Nowing current due to West
Wind Drift and the seasonally (Winter-Autunin)
sastward flowing Leeuwin Current (Bye 2002),
Phillips (2001) highlighted the importance of the
warm Leeuwin Current in (a) extending the limits of
tropical and sub-tropical macroalgal species onto
the temperate south Australian coust by increusing
winter sea surfice temperatures, and (b) ax a
mechanism for the physical transport of adult plants
via drift into the eastern GAB and beyond. Drifting
alval plants may also be hkely rafis for the dispersal
of epifaunal species (Edgar 1987), and may act us
important vectors for the movement of peracarid
fauna over intermediate to larger spatial scales,
Currently, there 1s insufficient information on the
distribution of epifiunal groups such as amphipods
to allow the construction of a more detailed
biogeographic picture of the GAB fauna. Our
woe
8
18.9
a)
2
4.8
636
14.2
674
ie od i) ries ms
S =
(0.4
1t30
Pagurapseudidae uma.
Tanaidae spp.
Tantis sp.
Stremerrinin spp.
Apscudidae sp. A
Apseudidae sp. B
Kalllapseudidae unid.
Joerepsi
Order TANAIDACEA
Apseudidae
Pagurapseudidae
Tanaidae
Tanaidae totals
"“% Tanaids
Isopod totals
“a Isopods
Kalliapseudidae
Grand totals
CRUSTACEAN EPIFAUNA OF SUBTIDAL MACROALGAL CANOPIES 199
TABLE 5. Summary of ANOSIM pairwise contrasts, comparing sites, algal groups and a priori defined habitats (ie. mixed
fucoid vs kelp- dominated canopies), Contrasts are ordered by R-statistics.
Comparison
Sites Post hoe algal groups a priori habitats
Global R = 0,508 Global R = 0.347 R=0.351
Pairwise contrast R Pairwise contrast R
EB NP 0.867 LE D 0.748
EP NP 0.861 i B 0.443
EB iT 0.804 C D 0.432
Fl NP (0.721 E C 0.421
EB SI 0.661 A D 0.379
EP Vy 0.636 EF A 0.281
EB Wi 0,582 B D 0.208
ee SI 0,541 A C 0.203
NP Wi 0,534 G B 0.194
FI SI 0.451 A B 0.045
FP WI 0.386
NP SI 0.271
FI WI 0.249
EB EP 0.140
Sl Wi O15
] 100, a an
(a) v (a)
o Stress: 0.21 a
| ) oO
a aoa a 80>
= = my a
wn)
qd . a ay « 60}
o zs) ' fe)
¢ wr EP ve 3
v eéy © 40
ao 2 ? * 2°, Qo
° Vv ae *v = Sobs
Fy v & 20 S1
ra) mM =
Vo v = 0 _ - jun _| _
O 0 10 20 30 40 50 60
fo] Cumulative no. of samples
(b) o Siress: 0.21 50 1
v n (b)
v oe )
‘ $3 3 400
pb Vv v o |
ev v 7)
e ® v v 5 30
Tee wi VY
a Vv vo 2
ia 5 Vig © 20
oO vv % o
g v Vv 2
Qo s v @ 10> Sobs
a
oO Oe = S1
v i QO. -——_ — tb es |
oO 0 10 20 30 40 50 60
ba Cumulative no. of samples
Fig. 5. Two-dimensional MDS ordination of faunal samples
showing the position of a) sites [NP: grey circles, Sk:
inverted prey triangles, WL; grey squares, Fl: ML EP: W and
EB: @] and habitats [sheltcred: black: exposed: yrey]; and
b) post hoc algal groups [A: W, B: @, C: 0, D: C1 and F:
inverted grey triangles],
Fig. 6. Randomised species accumulation curves (S,,,.) and
Chaol (S1) estimates of maximum species richness for
at) faunal samples, and b) macroalgal samples,
JOU) A
80. ——— >
th (a) : : .
a - ' '
5 0 !
® ' '
fr 60 t :
° 50 :
— ' ;
c '
gan 7
Ba :
> ' !
a Ls Protectuel '\rvherenvectialen faposed
3 20),
u t '
| a 2
0 i 20 30 4 50 6&0
No, of samples
4) — T T —t 1 7]
b ( |
g |) | |
o :
ce 30- |
vr) H '
6 | Ss
2 20 ; | -
2 : H
= . :
a ' '
e 10 : ' -
s Proteciad + IMmermadiate Exposed
2 : |
y \ ———
|
Q 10 20 30 40 50 60
No.of samples
Fin 7, Species ddcumulinion curves lor samples ordered hy
locution from least to most exposed lneuhons.
Infermedivie exposure includes PT and WI samples.
Shown are’) faunal samples, und bh) macrouleal samples
understunding of Whe biogeowraphy af the southern
Australian coustline to date has heen derived from
studies oF more extensively studied biota such as
macrovlgae (Womersley 1990; Phillips 2001) oF
macrofhunal groups such as deeapods and
echinoderms (tara & Poore 2000). However.
significunt knowledge gups still exist for many
coastal ecosystems and biotas found between
Esperance, WA and Port Lincoln, SA. The Nuyis
fund contained a High pereentige of undescribed
species. This reflects the geographic isolation of the
isunds. general paucity of research conducted in
the GAB and the lack of taxonomic keys and
literature for many perieand groups. kxtrapolaron
Was 1sedl (6 @Stimale maximum species riclmess oF
(he cunopy-qssoelated peracurid fauna, The estimiite
indieates that the species inventory generated by this
sindy is quile comprehensive, partreularly when
gompared fo the algal samples, This list is
HIRST
Hocessurly Constriined, ds sampling. was confine
fod sub-set of potential coasts (we Were not uble tu
simple the more exposed southera coustlites of the
St. Francis Isles) and concentrated on horizontal
surfaces within a resdietive depth range (X12 nr).
Nonetheless this species inventory provides a
substiuntial basis fyom whieh future work cin be
conducted,
Luewrity of Subticdal Hebitats
Ip venerdl locational differences (site based) were
found lo swamp differences obseryed between
faunas grouped on the basis of mucroalgal
asseniblige composition ar tabitat. Only the fiunas
associated with Sewohalia sp und Sarsressnat
app. dominated assemblages (aroups Do and 1)
could he adequately distinguished from one another,
Most of the other algal groups displayed only
Wwarginal separution, parveularly when contrasted
With the site comparisons. Habitats grouped on the
basis ol relative exposure and visible Mmacroalgal
structure (ie. kelp vs non-kelp) also filed to
Consistently distinguish faunal assemblages.
exhibiting substantial variation in assemblage
structure wilhin, and overlap, between perceived
habitats. Where differences in Taunal assemblige
structure were observed beoween algal groups, these
differences coincided with strong site differences.
Jlenee these differences could also plausibly be
attributed to the locational effects observed aniony
the site Comparisons, or at the very least. could pot
be fully distinguished. Poore ef af. (2000) argue that
Ihese patterns may be more apparent among graving
amphipods that show greater algal hostespecilicity,
Such patteris were hot, however apparent when the
Whole peracarid fauna was considered, despite te
fet That gravitig amphipods were a predominant
component of the Nuyts luna.
Nevertheless, this study does highlight quite clear
differenves in unal assemblage structure along a
vradient of inereusing, expasure, Samples collected
from fully exposed or protected locations can he
clearly distinguished from one anuther on the bitsis
of assemblage similarity, while sites subjeeted to
intermediate levels of exposure (1c, Intermediate in
the context of this study only) fall somewhere a
between, Surprisingly, lew studies have crectly
considered the effect of varying expasure on fhe
structure of epifaunal assemblages (but see benwiek
1976), bit have rather inferred such cffeets from
sampling conducted at a cange of depths. ‘These
studies have argued thal water moeven decreases
with increasing depth, which is often ue but
seldom dested explicitly. In such causes launal
numbers were fouud to deeline with increasing
depth, und hence deercusing water motion, Edgar
(1983) found substantially fewer amphipods at 6m
CRESTACEAS TPPIAUNMA BE AL BTIDAL MACROALGADL CANOPIES MT
conpircd to the Apper sublittoral. Taylor & Cote
(1994) af) the otticn bine) Ton that the density el
epthkninn on Kokleiieradiitee plants peaked avd ne
bul then deelincd substantially below Lem Tod
studios tentaively atirihiited these ehgiwes bo
reductions jo the number of filler-lecding species at
dept. as a consequence oP less water metion and
fewer [eedin opportunities.
In Contrast Lo these findings, this Stucky found tat
perdearkl iiibers were achiully lower at the
eapuscd sites compired (u the sheltered sites, Inthe
cose OF the Nuyis Jouna it is likely that water
movenient os scllreasanably high w more sheltered
diles. beculise (re St, Efaners Isles are subsees te
Hed\y eceume swell yeurround. Pihter-lecdinw
umphipnds seh us Marucery sp. (whieh aceur at
high densities chsewhere; Bdwur laa; AL | first
unpublished dua). and isehyrocerid and eupreiliad
amphipouls veto nol especially abundant among the
alow canopy, and it is possible that Filter-leeders
may CveUr TL Wigher densities ithe upper-sublittical
(0) Sony Where Wave chery i grealest, Mircover
the clinges in assemblage structure whieli
uecompany The transition Tron) protucred ta exposed
lovutinins hud Tile jo de with chunges mh the
abundance of the filterteeding species. Phese
chiwiges were instead more closely related to an
overall decline fi the abundanve of alealerieine
amphipods such as Tewereia nalgo, Caihophlias
ap. Hohe murifle and aovids: add ay overall decline
my the Auimber yh tanwid crustaceans (see Table 4),
Only Ampithoidie spp, and the isupud Medertenin
austradienyis, Were more abundant vmone the
expased localities. Podoecerid amphipods were only
moreinally rlore abundant among Wie exposed sites
compared lo Ue protected sites, umd an general ther
densities were highest among the intermediately
exposed sites (FL and WI),
One clear difficully in inlerprehng the etfeet a
varying waler movement on epifiunal comnunities
ys that change i wave exposare is often
uceconipatied by shifis in the composition of benthic
mieroulwal communities (dear L984), fn this study
there Was a yreater turnover of alwal species along
the gradient of exposure thav that found amon tte
peracarid (auto (however, Unis may be anartefaet of
simpling, because 25 © 25 em quadrats sample
macrouluie less effecuvely than the fauna) Ag 2
Consequenee. Tis virtiiily Inypossible to separate
ihe effects oF wave exposure water movement trem
alyal ussembluge structure. Algal communities
characterise of high wave exposure rareby oceur al
sheltered focabions und vice-versa and therefore
orthovoudl fietorral designs ineorpuruting varying
exposure ond plat composiian us factors ure
Impossible to conduct wathout performing large
scale ranipulalive experiments, Hi iature. change in
exposure and algal Composition may constantly
co-occur i a similar tanner (veiw Steneck &
Dethier 1904) For ouample higher wave enemy os
offen adconipanced by jar inereuse am the prevalence
oF robust leathery mucrophytes. and as a
comsequence epiliunal tohubitanis are nae ony
requied to respond ty chunwes ji water molon. bul
Wso changes ip plysieal and biolowico! habiret
struclure. Taylor X& Cole (1993), found
propertanucly fewer amphipods and speater
humbers af weeds unning alewe wilh wider thal,
ind this pattern iS largely consistent! with the
findings of this study. In particular darsu-sentrally
Nanened tsopods-such as Mekouedisin ciismilionsis
and shuperandied ef cneastate Were very common
dining Sevethatin and Bekluiie dominated
canupies. THiS js prestinably heeause the Houened
body shape af these isupud specice ehahles then to
adhere tothe brood alpae blades charsetcrishe ol
both these alae (Poore & Brandl ZOOL). Medlavin
radiata and Sevindbelia dorycarpe plants on the
other hand may provide lower hubilat opportunites
lor otler perdearid spevies, except where they eo-
odour with More finely branched epiphytic ar mid-
tniderstorey alval speeles (ie. Ploeerinin. Hapncer,
Celene und Zamerrer) thus imereasiie the overall
complesaty of the aynopy (ulipublished dala
This study showed vreater conformity henween
locution and faunal ussemblaves than those found
beiween mucroaleal and Runt assemblages. The
finding that assemblages sampled witht e sie are
more whke than (hose from different sites is nal
surprising (netzhbourhood effeets, see alse Wali
AWOL), Tn reality. however it is impossible to
separate these tictors From one another, because
location canhel via swmpline be analysed
independently oF algal composition (and yview-versi)
and therefore such comparisons ure and voidibly:
confounded, One possible way to pet around (his
problem would-be to only exanine Muna uxsociated
With a time OF algal species. although such a study
would be restricied by the distribution of the chosen
apeeres and the conelusioms necessarily limited.
Although this study found a clear shitt in faunal
assemblage structure along waeadient of increasing
exposure. this shill was also accompanied by clear
chinges if the composition of macroulgal
commumutes. As a consequence the actual
Inechianism for this shifl ts wrelean but is thely to
be related to the way in which epilaunal erusticvans
respond to 1) changes 1 the physical und hichigical
structure oF macrouleal canopies, and 2) variate in
the ranve of available food resources. In both eases
the identity of fauiial assemblives is inevitably
reintoreed by highly localised reeruttment pattems.
particularly evident among organisnis that possess
direcl-developing life-history,
MVE AA URS |
In general ulgal community strietire
performed poorly as a surrogate for epitaunal
biodiversity in this study. Only the Tranas from a
limited nuwber of algal groups could be
adequately distinguished Irom one abother, und
thus this upprowel wis eharavterised by a high
devree ol redunduney, As u gonsequence allompis
lo conserve associé faunul diversity hy
prowcling a range of differen( macroalyal
communiics may nor be universally success !ub,
wor in feet necessary. Tnstead, the toclusion of
representitive habitats along orange of important
environmental gradients (ie, geographieah,
dupth. exposure) may provide betler coverage of
South Australia's hindiversity, particularly flor
cryptic oy poorly studied groups.
Acknowledyments
}owould like to thank the Organisers af dre
Encounter 2002 Expedition to the Nuyts Archipelugte
for providing the opportunity to eondyer this
research, Lanvalso particularly grateful lo S, Murtay-
Jones for assistance i the field, Re Baldock, ci,
Poore and R. Peart for help with idenitieutian of
Mueroalgal and crustzeean material, and T) O* lure,
G. bdvar and P. Fairweather for helpful comments on
an earlier version of this MS,
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ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST
FRANCIS, SOUTH AUSTRALIA: MEDUSAE, SIPHONOPHORES
AND CTENOPHORES
By LisA-ANN GERSHWIN? AND WOLFGANG ZEIDLERE
Summary
Gershwin, L. & Zeidler, W. Encounter 2002 expedition to the Isles of St. Francis,
South Australia: Medusae, siphonophores and ctenophores of the Nuyts Archipelago.
Trans. R. Soc. 8. Aust. 127(2), 205-241, 28 November, 2003.
The medusae and ctenophores of the Nuyts Archipelago are reported for the first time.
In all, the collection includes at least 17 species of Hydromedusae (eight described
here as new to science), one species of Siphonophorae, one species of
Scyphomedusae, and two species of Ctenophora (one possibly new to science). The
localized evolutionary radiation in the hydrozoan family Zancleidae is also discussed.
Key Words: Hydromedusae, Scyphomedusae, Siphonophora, Ctenophora, Nuyts
Archipelago, Great Australian Bight, South Australia, new species.
Fremiyen Toes af Hie Raval Sectedeap S dase, (1003), 12701), 28 247,
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA; MEDUSAE, SIPHONOPHORES AND CTENOPHORES
by. Lis\-ANN GERSIIWES! AND WOLEGANCG ZEIDL LK!
Suiminsury
CP esWis lok APIDEER Wo Pricountier 2000 expedition to tie Isles oF St Praneis. South) Australias Medtstte,
siphonophares: iid etenophores af the Nuyts Atehipelage. Pray A See 8.
November 2003.
Vest W272), 2ST 28
(he medisne and clenophores of the Nuys Archipelage are reported forthe first ime dh all the eellecnon
includes ct least 17 species oF Tydromediusae ceighe deseribed here as ew lo seienveh, one speeles ul
Siphunophorde. one species OF Seyphumedusae. aut wo speees al Clenophord (abe possibly tew to science).
Nhe lnealived evalutionary radiation in the hydrozoan himily Zancleidite is also discussed.
Kiy Wakis: Tydromedisie, Seyphomedusie, Siphonophora, Clenophort Nuyis Arehipeliue. Great
Australian Bight, South Australis. new species,
Introduction
The medusae ahd etenophiores of (he Nuyts
Archipeligo have nol been previously surveyed. Our
results froma short survey of six days inadieate that a
lungerterm study would likely reveal a rich,
endemic, pelagic coulenterate fata,
Phe waters of Southern Australi are known for
high rates of endemism (Wilson & Allen 1987).
While aur gehitinous plinkton surveys ol the coastal
Waters OF S.A, WA, NUT Oiieensland, dna
Tasmaiia over the last few years have revealed many
new species, comparatively few were found at the
Nuyts Archipelago. Hydroids of must species were
Wot found, despite extensive searching by menibers
of the expedition: thus, life eyeles remain unknown,
Some rescurchers have recently advocated caution
in describing new speeies of lrydrozoans unless the
complete life eyele is kiown (Sehuchert 1996
Bouillon & Boera 2000), Henee, we do hot propose
speciic names for the speetes of prada ane
Fefuplewa described here, However. we have
proceeded to deserihe four species of Zemeled as new
lo s@lence becuuse we believe that the medusae have
sever) morphological eharieters that distinguish
them from other known species and evel other, ane
Wwe hope to back this up with DNA sequence
mnlormation in the near faire,
4ondea us the hydroid was not Found at the Nuyts
Archipchige and is absent front recent callections
from southern Australia (Jo Watson. pers comin.)
This. ieseems likely that. in southern Australia, the
lit cycle of Zave/eu species will only be discovered
hy rearing (hem in the laborartory.
Depaynrient ot Miu iohapey ak Aetguiietine, lamin Oink
Hveerky at Sccl Quicerishendl Tenviowville Cuil a i
Soul Mashailan Mosse Savth Terruee: Adelie, SA S00
We were ulso unable to vollvet information oi the
nematoeysts dn the field and Toutet ih diteutt to
obtain meanineful data from preserved specimens
Thus. this important information is unavailable al
(his stage.
Materials and Methods
Must of the material examined iy this study was
vallected from Potrel ay, St Praneis Islnd (32° 30!
O06" 8, 133° 17° 45.6" FE), Specimens were
captured with a one-third metre (O43 m) drameter
plankton net with a SOOhm mesh, with a solid ead-
end, Plankton lows were condueted from an
anchored vessel (RY Neerie or tenders), willt the
currents alone providing the How rate. Dunitions af
lows were haphaaird, varying trom [0 minutes to 6
hours, Whenever possible. living material was
observed ghd photouraphed te record colour and
behavioural patlerns, Specimens were relaxed ii
menthol or magnesiam ehloride, then faed ina
solation of 50% concentrated formalin and SO%
propylene ghycal, tO equal approatmiately 5%)
formalin in seawater (= 2%) formaldehyde),
Chemivally yeluxed specimens were gently
transferred into chilled S! formalin solution (Dr P,
Alderstade, pers, comm. 2000). this method yielding
the closest approximation to living Corn, wath abby
negligible Gr no distortion, Measurements of bell
height (11) and bell diameter (BD) were tade on
preserved specimens with MaxeCal digital) calipers,
ly the nearest OOS mim. Collectors’ names are
abbrevialed as follows: LG - Lisa Gershwiny LL -
Thierry Laperousac: W4 - Wollang “Zeidler.
Speemmens are deposited in the collections of the
South Australian Museunr (prefised “Hy and the
Tusmaninn Musenny and Art Gallery (EMAC, For
wll species with Oultiple specimens, ene or more
were Proven in hiquuid nitrogen and deposited in the
Ut LL, GELRSTWIN AG Wo ZEHDE ER
SAM fragen tissye bank. In addition, some
specimens were faxed in LO0% aleohol (prefix
“XI. Colour images of photographed specimens
have bean deposited inthe phato-mdesx colleetun of
the South Australian Museum and the specimens are
dishnguished by an additional number (prefix “PH"),
cross-relerencing them to the image, Addihonal
unsorted material is availible for further study,
Classifiations of higher taxa were adopted as
follows: Tydrozod and Seyphozou following the
traditional glassifieation of Kramp (196Tb),
Siphonophorae loosely following Totton (1965): and
clenophores following Mills (1998-2002), Vaniilies,
venera. and species are arrunged alphabetieally
within vaeh higher classification, All taxon names
huve heen verified with the orginal literature. exeepl
as Hated,
Uhistations were mde (ony preserved specimens.
Systematics
Phylum Cnidaria Verrill, 1865
Subphylum Medusozoa Petersen, (979
Class Hydrozou Owen, 1843
Order Anthomedusae Haeckel, 1879
Suborder Filifera Kiihn, 1913
Vamily Hydractiniidae L. Agussiz, 1862
Genus [ydractinia van Beneden, 1841
Hydractinin sp. (Fin. 1)
MVedterial Exuniinted
Gravid female. BEE LAL min BD O8T nnn
(HUISO8), Petrel Bay, St Francis |, coll LCi, 25 Peb,
2002, One immature specimen, BH OS mm, BD
6.99 im (11245), samme eolleetion Gara as EEL IO8. %
specimens (12TH), one gravid female (1321),
Brennan’s Wharf, Port Linon. coll, LG & TL, 1S d&
16 Feb, 2002: 8 specimens (1315). Mural Bay jetty,
Ceduna, coll LO & WZ, 1S Dee. 2000,
Desoviption
Body bell-shaped, with a thickened, rounded
upieal mass. bXaumbrelku surfiee smooth, Stomach
mounted upon avery shallow gelatiious pedunele,
without mesenteries: Flask-shaped. Cronads +4,
interradial, oceupying the upper Vo of the stomach
wall: mature ove arranged long (he vertical midline.
wilh the unripe ova along both sides. Mouth with
short, sligbily recurved lips. with a terminal, adaxial
Tuli of nematowysts:; reaching the velar marin,
fentacles &. 4 pereadiat and 4 interradial, Gliform
with » thiekened tip. approximately BH in length.
fentucle bulbs. &. tiangularn with a short abaxial
extension up onto the endodermal surfiice al the
subwnbrella, but not onto the exumbrella, Ractial
cunaly +. very nurrow, lacking pigment. Ring cunal
slightly wider than the radial canats, Velum
moderately wide, Statoeysts and aeell laeking,
Colourution te hifi: yumuds, stomach, and tentacles
and bilbs whitey all other parts transparent aie
colourless,
Remeks
The family Uydraeiniidae is badky an need of a
revision, us was Hoted by Sehuehert (1996).
Although we are unable to clearly differentie all
taxa inthe geoup. the present torn seenrs to difler
frony seme of the better known species (see Table |),
However, beeatise of the dearth of charieters on
(yeractinia medusae, we are hesitant lo describe the
present formas aew without koowledge of is
complete life evele. /pdractinia sp. appears ta be
most similar to A, australis, (Shuchert, 1996), f/
comnee (Sars, 1846), and 7 denaix (Browne, 1902),
Ih vormparison, 7. tenis hos medusa buds ind a
well-developed pedunele. whereas // sp. does not,
and /f aiscralis typically has more than s tentiches
and reduced oral arms, whereas // sp, has well
developed oral arms and only oh lentiacles,
Uydractinia sp. might be mistaken for falling: within
the range of variation of 7L eurnea, but the latter
mane is wiven lo forms representing @ clinal range of
character suites in Hurope and the Mediterranean,
and we feel that it would be simplishe lo inetude the
southern Australian form, which apparently lias a
sluble morphology, inte the more variable Furopean
form.
A combined motphologival and pioleculir
compurison ol a wile cunge ol peographical forms
would likely answer miity questions that have
hindyred the furtherance of Knowledge of this group.
Ihe Hydractiniidae is a geographically widesprend
wroup but rather narrow in its Known species
diversity) a better understanding of phe spectes”
boundaries will very likely sienifieantly pnercase its
taxonumic biodiversity.
Suborder Pandcida Petersen, 1979
Family Bythotiaridac Maas, 1905
Genus Heterotiara Maas, W905
Hererotiara ausgeoana sp. noy. (Vig. 2)
Meterial Kxeamineal
Hiedotvpe: Gravid female, BH 0.85 mim, BD 0.95 mint
(M1311), Petre) Bay, St. Mranens b, eoll 1¢r 25 Peb
202.
Diaenosts
Terrorure with A short, sure thtek tertieles will
pond completely surrounclii, manabrii
Heworipricns
Boll wider than Lallowith Unekened, routded apes:
WIth sparsely scattered nematocysts, Radke canals 4,
wimple, stralht, gvoderwely thick: ring canal
PELAGIC COELENTERATES OF THE NUYTS ARCHIPELAGO
27
Pig. Ll. Hydraciinia spo female (M1308), lateral & aboral view. Seale bar = 0.5 mm.
208 1, GERSHWIN & Wo ZEIDLE RR
Pig. 2. Héterediora aisscoute sp. nov, holotype lenmaile, lateral & aboral view. Seale bar — 0.5 mm.
comparable, ‘Pontacles 4, thick, short, straight,
hollow: the distil ‘sy (hickened and densely covercd
with nematoeysts, Tentueles connected directly to
bell with a thickened mass. but not tentacular bulbs
iy the the sense. Manubriuni smooth, set upon it
very shallow gelatinous peduncle, Hask-shaped,
round in eross section. Mouth small, simple and
round. In lite, the mouth reaches nearly to the bell
margin; in the preserved specimen, tts considerably
contricted. Gonad completely surrounding stomach
on upper half of manubrium, crowded with ees ol
many sizes. Ovelli lacking.
Mivanalagy
Named (a honour “Australian
Hazing. a spolsor of the expedition.
Geographic”
Remarks
Heterotiana ansgcoana sp. nov. is immediately
distinguished fram its congeners im only having 4
tentdeles. dnd in having the gonad completely
surrounding the stomach, whereas the gonads of
olher two species are intercadial and the tentacles
more numerous, (Meferaiara avonvina Mias, 1905,
fromthe Malayan Archipelagze. reaches about 22 mm
andl has 8-12 tentacles, and 72 rier Vanhdfien,
M911, from Nias Loin the Indian Ovewn, reaehes 10
mmm and hus about 20 tentacles. Although 7/7,
cusueouna is Mueh smaller and has fewer tentacles,
ios unlikely thal this is au ontogenetic difference.
The vonads appeared to be fully mature, and there
Was no sign of additional tentacles begining to
develop,
Ihe species might also be superficially confused
with Bythatiara parasiiea sensu Sehuchert (1996),
whieh hits bell nemiatvevsts as a juvenile. but loses
them as it grows. However, // ansygeoana has bell
nennitocysts in its sexually mature state,
Furthermore, the manubrunr and mouth of A,
porasiticn are erueitoroy and about > subumbretlar
height. whereas in //. aavgeuune Urey are round in
cross. section Without the slightest hint of corners,
and they nearly reach the manubnun in life.
Sehuehert (]996) surmised that the mature
Ayvthovara medusae he found were probably &,
parasitic, but pending full knowledge of the life
cycle, he kept them separate. However, i they are
indeed the aduly form of the medusae he raised in
cuplivity, then they are even more dissimilar to //,
ausgeodna. with the gonads of his Butlotiearer
erowing into the charaeteristio folds that separate the
Iwo wener. while the gonads at /h aseeoune
remain smooth, Purthermore Schuchert’s medusue
we 4 dim BEL at maturity, whereas //. auger
is less thar Pm,
We found a similar form at Ulverstone Whitel,
norihern Tasmania. on 4 February 2002 (11116).
While the Novis. specimen appeared to be mature,
the Lasmiannn specimen was larger but appeared to
hive immature gonads and a remnant of the
umbilival canal, The relationship between the two
forms js hot yet clear,
(i)
5
16)
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PELAGIC COELENTERATES OF THE NUYTS ARCIHPELAGO 2h
Nig. 3. tphinema chesticr’ sp, noy,, holotype feemle, lateral! & aboral view. Scale bar = 1,0 mim.
Tentaculue short, narrow. up to about 20 total in the
largest individuals. evenly spaced, not necessarily in
correspondence with main radii. Velum wide or
narrow; relatively sturdy. Stalocysts and ocelli
lacking. Colouration in life; tentacle bulbs deep
orange-red internally, somewhat violet externally:
gonad translucent whitish, greenish, or yellowish:
manubrium and tentacles whitish: all other parts
transparent and colourless.
Development
The youngest specimens haye ne trace of gonads,
only a short apical process, and only 10 tentaculae,
Appearance
Immediately recognizable in a plankton sample by
two dark pink spots, cach at the base of a whitish
tentacle, and a whitish, greenish. or yellowish
stomach between, upon closer inspection, the long.
narrow apical cone can be discerned. This species is
reluuvely inactive, likely to be found relaxing or
pulsating along the bottom of the sorting bowl. only
occasionally at ihe surface, See compirison with
Zanclea Sardii sp, nov.
L, GERSHWIN & W, ZEIDLE
ol
Loa]
wlonaaload
spurs] (OOUIs [RI PUA + sgpig [Rsrq — jRatuda payuiod jeade
Sau) “MOLINE LOA, YSIPPA \ooutts “[mipeaad 7 [RawOd aAM] “pRolg pun Fupnyour (eel “duansy)
qanos sprue) Waap yootuors uaa TOK, ]eIPRUNUY TWO, AMAA, saRINONIUD] Aloa qi “TZ Wwasalg Japuyg “WI HMA thd
jbipeowur jyslay tloldafomd ERG] “SSOA-
WPBUL sq aR, UO “ANYSAsJOU spouro Aby}oaquangns sqing padeys MRoyAp pun = fusidy = WUE SULg]
TYLUAJO Sands jPrXege poxlsqa padnys Bt J u) oV dn “Uuuay peo panuiod (uuu a Thy
ysunig FuLyaey paniodas ion) HON -A[ RINT U\Rua] : “OT fonjnony, DRINE ANT ASG MIDUTUIONg = WIE SD Syrytrerycl
posal pur peaiq
sypuea “sqing YsiXoue LUNLqh Uru quasqr SOLUL] [LAA AS juosge (Lipripe x uoupafoid
DPOMILDF JO OPSUL — “LMI YSIMO|jad Sal paumnsasd Papo} paunsadd [CIPO f SHULL TSAAOVLUAL [rade
uo juasaid sqing pus sqing apriual {palloujuaut “ARIPHAONUL = {paquinsap “ipeatad ¢) pur sqjng TuIpnpw (LTey Mpa)
unde AMOSSAIDW — “CEALOAG S}PUED pUIpEY WN panied *¢ ION FY canpamuay He] EWC lwasqy yes. WL Meenas P
uonaaloid
asogn UwOUg Yup Jelpeaaqt + sqing — padvys onapisuoa raid ONT
SPur|s| se spur, (unuignurnn qjoous ‘yeipemad T pRseg pawsuoya aa INGUIN TUIPNN —7e fo OYTO,
PUEPAYS “S — ABINT[AT YILAY jo Uuopopuy juASYYy “TWIPR.LAd USAT (aRpmaentaL {BSIOD YA TWAS AY SPAIWOD SLU Ay] ates
pypouquinya Sqinq ajanjuar pur
pur sy jeuno FUL Ul
WdoAMIag spurns — Taam ystumerg jo sno pany
FUNIOUUOS —- AOD “UNO YsIPPry jRypraqul Apuynsoun — sqyng pamAvays OSH TASS
uuRYy > Ysysuy AUN} (EL SVLUOTS Juasgy qoouls “fF juasgy “QSSRIOINUAL «= MOyfOANS YT D Tuesgyy juasyy COUT) wittelinny
oun. Una Saeed Sqjniq [uals (Q(X | Qhansay
‘AYUDA pun yreuUloys SHAN [ROTATE porpauoya jronios y UU )
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H{jeaquunn\a AYU]
ay) Suoye = yapOla-pal AyPRwayUT
AVRO pa-aduni daap
pareduoja — sqyng ojowiyay sweat juzipenb wonoatoad
“AU[VAOY Apupey OL USAT YortUaYs JO J/By Jad ¢ ordi jou sqjng passayutoa jeorde
LTig unRasny — passaiduuos winqnueu Jada uo suolysna to jriprund ¢ — Ayjptainy yraqes wou “(ott ‘sour-ds
AID. sqing ajsryuoy, pur speuon IASYY — [BIPRAPR YTOOUIS *y juasay FALINABIUAT —HAPUARIS YLT MMOS TOE AT, HE tyson 'p
DAURIO 41/290 WRU UO
“Moljod ysinaarm® ARMpUp “sang — [andy wt (erpepe|
{woouus sqing ajar DARA UO YOPLULOYS. Jo SapIS sqing jerpeaiod sy(ng [kaluos (qO0GT IANA)
BPLy[4 [BUR |RIpHY PUP LUTLIGHUR Ay jerxege p-y LO PalRonAo > JUASG iy ATRUSTUIP ALL 7 TWO] YOM TT MASG USUI UU gt ATPASE fe
sIajawsbya # angnaeyual 10 Jaquirys —uoyaalod ya lay
ANEW] IMO anayo)y TAO uontsad pruory — s9yayuasayy WRAY [PULSE TA] sapeuay — yrady jraidy 14
1Q796 7) duip.ry sie SHOUMIOSAP JPUIBLIO 1] F /Pash ALMIDIATT “WNSOBNI WW Yiiae /PAuHApY ag OF (NYT) C420g PHY UAT UOg
fy JYBMOYT NON BTM BERL “Raa uy SIsuONRTAs, wy LO Mond.tosep OUIRLO 2YL HIANYO OF ayy TOU ALM ayy @PSTPAH PuratUyinp: fo SaiapAey) aii) fo HosLindite yD VIBY
PLLAGIC COLLENTERATES O1
tenlaele brlbs find
peobuseis ul
[sald by Buu
Chefoo, Chini
Locality
New port.
‘oboscis
characters
I
p
>
ae
=
u
3
Other
avles deligate
runt red in Same
o>
a
3
a
Pa
>
i—
D
and
canal pik
Entodere of proboscis Lips
Preserved: Manubrinan Cu
&
5
a
S
=
2
=)
faa)
RCs |
Colour
ring
Oeelli
Ahsent
If), abaxtal,
ane atthe
base of
eich lentacle
stds
upper
als,
r
a
=
7]
imal bull
d pos
Cima
With sey
ea
o
u
-
=
u
as)
rs
3
=
=>
pes
=]
a
4
a
5
Mesenterics
uentioned,
= c
co,
= =
Not
or tentaculae
Tenraculae; 14
Tentaculae: |4
14-24 sinall
Marginal wart
Tentaeles
2. with vbaxtal
spurs on bulls
_ with elongated
basal bulbs
5
al
chamber
Ahsen|
Hollow
Aj
slender to
cone-shaped
Apical
projection
Variable;
Jone &
height
Simm
Bell
u
uo
ec
Fr, |900b)
SM
ra
r=
=
=
ri
wy
ps
=
5
a
=x
4
=
2
~
(Miwve
ie
HIE NUYTS ARCIUIPLLAGO 213
Etvmolog
Named to honour Professor Anthony Cheshire.
Chief Scientist, South Australian Research und
Development Institute (SARDD), Aquatic Science
Division,
Distribution
Currently known only from St, Francis b.. Nuyts
Archipelago, S.A,
Remarks
Amphinema cheshirei is casily distinguished trom
all other species of dmphinema by its unique
coloration, und in structural charaeters as outlined in
Table 2. This is the first report of uphinenur from
South Australian waters.
Family Protiaridae Haeckel, 1879
Genus Halitiara Fewkes, 1882
Halitiara thierryi sp. noy. (Pig. 4)
Mererial Examined
Holotvpes Male, BIL 1.54 mm, BD 132 mm
(HI147). Petrel Bay, St. Francis ©, coll. LG. 25 Feb,
2002.
Paraivpes: Al, 17, 4 & 30 specimens (IEEI38,
H1392. HI T40 & TILE4S), type locality, coll, LG, 22.
23, 24 & 25 Feb. 2002 respectively; 7 specimens
(H1139), approximately 200 m west of North Point,
St. Francis 1, coll, LG & TL, 22 Feb. 2002:
numerous specimens (HL217. H1323 & H1393),
Brennan's Whar, Port Lincoln, coll. LG & TL. 15 &
16 Feb. 2002: 5 specimens (XT 0117), Port Lincoln,
from salnion farms. coll, LG, 21 Feb, 1999: one
specimen (111234), Whyalla marina. coll. LG & TL.
14 Feb. 2002: numerous specimens (111297), Murat
Bay jetty, Ceduna. coll. LG & WZ, 15 Dee, 2000; 5
specimens (11227). Streaky Bay jetty, coll. LG &
TL, 19 Feb. 2002.
Additional Material
17 specimens, BIT O.5-1.0 mim (HIOKS), Se,
Helens, Tas.. coll bGr & WZ, 24 Jan. 2002,
Etvinalogy
Named to honour Thierry Laperousaz. the
collection manager at the South Australian Museum.
Tipe Locality
Petrel Bay. St, Francis I,, Nuyts Archipelago, S.A.
Diaenasis
Halitiara with solid. pyramidal apical projection:
with 3-6 marginal cir per quadrant; with small
gonads confined to the stomach wall, lacking
mesenteries; with conspicuously pink colouration.
214 L, GERSHWIN & W, ZEIDLER
Fig. 4. Halitiara thierrvi sp. nov., holotype male, lateral & aboral view. Scale bar = 0.5 mm.
PELAGIC CORLUNTERATES Ob THE NEY ES ARCHIPELAGO 2\F
Deseriplion of Halatpe
Bouy bell-shaped. wlobular witha rounded wonieal
apex, PRuMbrellar suriide covered with exteyely
fine gelatinous warts. Radhil canals 4. straight,
smoolh-edwed, relatively wide, Ring enal sumewhil
wider than radial cunuls. Stomach large, globular to
wine-vluss-shaped jn Ieral view, more or less
completely filing lop half oF bell cuyily: cruciform
in cross section at base. extending at along radial
canals for a short dishinee, rounded trough
remaining length: lacking a peduiele or an apreal
chamber, Cionads 4, smooth. large. oreupying the
Whole stomach wall bewveen the nidial canals.
luckin mesenteries. Mouth simple. quidrate with
rounded vorhers but without proper hips; the margin
of the lips is simple, Jucking a thickened edge or
other decoration: catending to about 05 the dength
ofthe bell cavity fa life, shorter preserved. Tentacles
all coiled, Of two types: 4 fareer, perrudial tentacles
wilh Jong, evenly tapered basal bulbs: about
smaller cirrts-hke tentacles between adjacent may
tontieles, without distinet bisal balbs. Velun
narrow. Lucking stttoeysts, ovelli, und excretory
papillie. Colouration i tife: bell eolourless and
transparent: tentaeles, bulbs. and gonads brilliantly
pink.
In the preserved speedier, there rs a conspieuons
dip a the radial canals midway up the gonad. witha
corresponding, fold in the gonads at this point This
appears Ws hein arb Ret OP preservation, dis was Hol
observed in photographs of Twine ay als.
lurialion from Holotype
Seventeen specimens tram St Lelens. torthern
Tusmuniia, resemble the South Austalian nmatecial in
ull respects exeept that the apex of Whe stlomueh
protrudes considerably dola the geliinous apien!
muss. Unfortunately. the specimens were nol
cxumimed live. und sa the exiet natire cane
significance of this difference cuumol be wscertitined,
Behayion
This species is joniediately Wentitiable ina
plankton tow by its errade swimming behaviour, It
pulsites rapidly. rovking baek and forth with each
stroke, as it makes its way fo and along the airwater
interface, Afler bursts of swimming, i sis lo the
hoton) of (he jar where i allermately flattens then
rexitins Us normal shape aller several minutes.
Remarky
Hlatitiara thierey) ditfers in only aw few respeets
frony its congeners (Table 3), bul these differences
seem worthy of recognition as a species. Ih overall
body shape. rt is must similar ta (0 formeser Pewkes.
IS82 with Af fa/leve Bouillon. JONG, and JE dite
Boulllon, 980, having mterradially and perradially
bulgine gannds, respectively, Partherojore. Wee fitter
Awe species, boty trou Papa Sew Guinea, have
mesenlenies, wheres f formeseand ML thienrhd da
nol dadiiur thier differs trom 22 fernoset mn
tontaele number. ludy sive colour, dd fabitan ly A
Hier, Whe Wnber vl smaller females appears to
be abou! hal? the number of these found in 77.
formosacond T thienay never redehes tore than
about Lm. whereas JE for niove is typreally about 3
mor Furthermore, the columalion of 7h dhiernv
differs considerably (rom jhe type papulation al 77.
Jormosa trom southeustern USA, Miuver (910)
noted that the manubriin ane tenlele bulbs in his
Speenens were green in the females. brow in the
mules: in contrast, those of both sexes of JL viereni
are brilliantly pink. Pinglly. (72 viene is endemie ta
the cooler waters of southern Australia, while (7
/ormose is commen to the witrmer waters of Morida,
Ualitiee formosa has been reported ram many
luculines throughout the warmer parts of the worlds
however, we doubt that ath are identival Clerics
(1927) reported a small. pink /Zuditiewa fram Misaki.
Japan. which he presumed to he a coldur variety al
HH. formose. Wseems logical (hit the fapanesi: fon
might be more closely fehited to Mf dhrerrv’. based oni
is colour and geographical proximibe hut Lichida’s
descriptions were inadequate lor proper comparison,
Dinteihrition
Apart from the type locality, this species was found
in ubundanee in the waters off Port Lineoli S.A. in
vertionl hauls from 10 to the sunaece, ab the jetties
at Ceduna, Strouky Bay und in the quiet supfiee
walters of (he Whyallie inarim, Matern) from St
Helens, Tasmania. ts also referred to this species.
pending a more detailed examinanoan al the
specimens. This is the first record of the genus in
Australign waters,
Order Capitata Kiln. 1913
Suborder Tubulariida Petersen, 1979
Family Tubulariidac Fleming, 1828
Genus Ectoplenta lL. Agassiz, 1862
Eeropleura sp. (vi. 5)
Nhrteriul Examined
Male, BEE O74 mm BD 0.69 mn (EELA09), Petrel
Bay. St Francis i. coll, LO 25 Feb. 2002: awe
specimens. BIL about OS inm (IIS94), same
locality. coll LG, 23 Feb, 2002,
Desc riplion
Body barrel-shaped. wider im the niddle than
at oeither the oral or aboral end, lacking
uboral projeeuon. Apical canal fiimel-shaped,
conspicnously expanded distally. Laxumbrella with s
foritudlindl nemualocyst Wracks. 2 emitting. laterally
IVb L, GERSHWIN & W. ZETDLER
Fin 5, Eerupleura sp.. male (111309), lateral & aboral view. Seale bar = 0.2 mm,
PEEAGIC COLLENTERALES OF THE NUYTS ARCHIPELAGO AIL?
TABLE 3. Comparisxonof characters af species af llalitiann, Fierateve aved Pewkes (£882) Mayer Odi: Kreanp (196th)
Bouillon (P98Q): Bauillan & Boer (2000),
th iflena
Al. faninaser
Fewkes, [$82
Boutllon, [O80
Hf thierry)
sp. ney.
Hi. pieiede
Bouillon, (YkO
3m 3mm
Pourshaped
WHE solid apical
Bell height
Bell shape
propeehion
“omureinal cir} q-4 TL)
per quadvarit
Mesenteries hackiie Present
Manubrivin tenet = bell vavile
Stomach and Pyriform
mianubriwin
Cionid torn Hieonspiciiuns
Endodery of Colour is
manubritwn and
tentacle bulbs preen
in females, Huh
hrown in males
‘Tortugas. Plorvili
Colour
}ype locality
beveshaped, without
apical prajecrion
bell easily
Quad tal
Voluneniies simuath,
buleing interrudiatly
ereentsti-sallow
Papua New Gunes
! mm
Pear-shaped wath
3mm
Tull and neerreyy, with
short, spike-like solid, pyramidal
upical projection apical projection
Typically 4 3-6
Present
V bell cavity,
extending elon
rch l-cumialss
Simall, erucitarin
with apenl diverticahim
Large, smooth,
extending pernidially
along the gamuls
Chomitds and upucal
CAPMISION Lreer:
entitle bulbs tinted
yellow
Lacking
Approx, 2 bell cavity
Wite-ghiss-shaped
Small smmouth,
confined 10
manure
Soll pink along
the matiland, deep
pink wn the
Archipelage
Papua New Cuinea Great Austrilian Bight
tram cach of the 4 teatiele bulbs, nearly TRU? aparr,
then extending vertically up the body wall, nearly
revching fhe apex. Stomach massive, occupying
most of the subumbrellar cavity; cireular in cross
sechion, lacking @ pedunele but wilh a slight apical
chamber filled with sparkly granules, The apreal
chamber joins with the fummel of the exurmbretlar
ipical Gone. but Has unclear whether there is an
ucluul Opening. Gonad covering the entire central“
of the stomach wall, leaving the proximal end an
the mouth free: unbroken around the circumference.
Mouth short, cireulir, simple, nearly reaching: the
velar inargin in life. Tentacles 2. opposite, coiled.
with capproximattely LO-12> nematoeyst kaabs
sequently vlong the abaxial surface. Tentacle bulbs
4. more orless cireukir in outline. but smooth against
the exumbrellur surfave. with a slightly raised
nemuoeyst pad beneath the velar maryine Radial
canals 4. very fine. straight: ring canal about the
sume width as the radials. but more conspicuous,
Velum moderately narrow. Statoeyst and oeell
lucking. Colouration in life: subumbrellar eetodern
is rasparent brightly green: the gonad 1s-translucent
Whitish: tentacles and tentacle bulbs are opaque oft
white.
Ippearanee
Ditfieuwl to see ina plankton sample without the
aid ofa dissecting scope, Small and jHactive. resting
on the bottom.
Remarks
According lo Schuchert (1996), identificntion of
Ec fopletia species relies on the nematoevsts and the
morphology of the polyp; therclore. we-ure reluctant
fo name this form, even though we are inclined to
conclude (hat it is distinet from other Leroplenre
medusac. A comparison ol the characters of named
Lelopleira medusag is listed in Table 4, A similar
fori as commen on the mamlund, differing fron the
Nuyts form in having 4 tentacles, each with about 1S
nemittocyst knobs. und having a golden subumbrellar
ectoderm rather than green. A third fori is conmen
in Tasmania, having 4 tentacles. a nurrower
separation ob the nenmloeyst tracks (only about 90"),
und haying dimorphic expression of the coloured
subumbrellar cetoderm, with about of the
specimens having green und the rest having red.
Suborder Zancleida Russell, 1953
Family Zancleidae Russell, 1953
Genus Zanclea Gegenbaur, 1857
Zanclea sardii sp, nov, (Via. 6)
Material Exeurinedt
Moloiype: male. BI 445 nm BD 2.600 mm
(111094). Petrel Bay, St. Francis 1, doll LG, 25 Feb,
2002
Puratypes, 86. 5 & 30 speeimens (EEO89, F195,
HII37 & TTIA41), lype locality, coll, LG, 22-25 Veh.
2002 respeelively: 4 specimens (H1136). about
200n1 west of North Point, St. Vraneis bh. coll, LG &
TL. 22 Feb, 2002,
Additional material
2 specimens, BL ca. 0.5 mn (11086), Port Sorell,
Tits., oll, LOG & WA. 24 Jan, 2002; | specimen, BH
IN & W. ZEIDLER
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PELAGIC COELENTERATES OF THE NUYTS ARCHIPELAGO
2|9
6. Zanclea sardii sp. nov,, holotype male, lateral & aboral view. Seale bar = 1.0 mm.
220 L._ GERSHWIN & W. ZEIDLLR
Pig. 7. Zanclea ngeriana sp. nov., holotype female, lateral & aboral view. Scale bar = 0.5 mm.
PELAGIC COPLENTERATES Ob PHL NUY TS ARCHIPELAGG ay)
1.0 nm (HEOS7). Stanley, Tas. coll, LO & W/L 3
Feb, 2002,
Type Locality
Petrel Bay, SL Vraneis 1, Nuyts Archipelago, SA,
PD iaiensts
Zunclea with wsohd. pyramidal apical prajeetion:
wilh about 100) cuidophores. pet tentacle: with
woniddy divided al (he perradit and interradii: heking
mesonteries and a pedunele,
Deseriprion
Body bell-shaped, wilh a prominenk pyramidal,
soldapical process, about the total height of the
animal Exumbrella with 4 petrudial enidoeyss
pouches, the two ubove the tentieles about twice as
latweuts the plher hwo, on ramsed gelatinous processes
u short distance above the tentucle bulbs and
rudiments. Pentievles 2. each with about [00
cnidophores on the abaxial side; to about 2 x BI
relaxed i lite, about 0.58 BH when swimming.
Tentacle bulbs 4, 2 filly developed. 2 rudimentary;
the iwo with tentacles comical, ubout 'o the height of
the body, excluding pied) process, Stomach
mounted upon a very shallow eetitinous peduncle:
erucilom in cross suction. broadly Hask-shaped in
literal view. Gonads S. divided on the penadi and
interradi: on the upper 4 of the stomach wall,
Manubrian protuding below gonad. narrow, round
in Cross section, wilh simple. round mouth reaching
beyond velum, Velum narrow amd flimsy. Racial
canals narrow, ring canal same width as tadial
canals, Mesenteries absent. Sttloeysty and ovelli
ubsent,
Colouration mite: the wo well developed tentacle
bulbs ure deep purple proximally graditie to magenta
pihk aud oninwe distally, the two ridimentary bulbs
ure purple; tentacles Taintly red, with whitish
cnidophores: vonad opaque or translucent: whitisl
With w brvenish tint theeughoat and a hint of purple
Where i joins With the peduneles minubrium ane
MOOT Wahslicent whilish, iy same speeinrensy the
subuimnbeelliar epitheliain has a faintly wreenish tine.
while tn others iL is completely colourless,
Appearaice
Very similar to aphinenia cheshire), except 4,
veredil sometimes has relatively more purple and
magenel in the tentacle bulbs, whereas the bulbs of
L cheshire? lend to be stizhtly more orange. Also.
Ihe tentacles of 4. sere/f are vypieally held tichtly
voniracted while swinnniing. whereas those of oh
cheshire? olen stredin tens oF BLS in length
Prinaloey
Named i recosnition of ihe South Australian
Research and Development tastiture (SARDL).
Diserilition
Thus far orly known from the worthern bays of Si
Francis Island; younger forms. whieh ny be
conspeetlie, were found in northern Tasmania,
Behavion: in Life
While swimming. the medusa contracts the
tentacles so that the enidophares ure clustered on the
very distal portion of the ahavinl surface, While al
rest, the medusa oecasiotiilly celixes te lentucles to
about 2< BEL More ofien, ii sits on ihe bottom of the
Petri dish and alternately swites the tentacle bulbs
up Tvterally across the velar opening, then relaxes
them out dain. Tis a getive speetes. swinuminss al
the surkiee ang resting al the bottonr
Remarks
The remarks forall the species of Zed will be
Irealed lovcther al the end of this seution,
Zanclea ngeriana sp. nov, (Pig, 7)
Material vxanmined
Holotype: gravid female, BEL about 0mm (E43).
Petrel Bay. Sto Praneis L. eoll LG, 25 Peb. 2002,
Paralypes: 4 speennens (1144). same data as
holotype.
Tipe Lac ailith
Petrel Bay, St. Praneis 1. Nuyts Archipelago. S.A.
Dieenosis
failed with a sinvoth. undivided vonud,
surrounding the upper half of the stomaeh: with a
moderate welatinous peduncle. with ubour 20
enidophares per twituele: lacking an apical
projection.
Description af the Nealrivpe
Body bell-shaped. thiekened apically. with a slight
depression instead of an apical projection,
Lawnbrella when viewed from ubove is howshaped
Wilh rounded corners, ond with 4 interradial keels
done te upper Vy ofthe body, Cnidoeyst pouches +
upon raised velalnous processes: unequal in sive, the
Iwo above cuch tentacle are about twice the size ol
the we on the other perradi. Radial canals 4.
narrow. straight: cng eanal the same width os radial
cutals. Stonwaeh Mask-shaped, round ip cross secon,
upon ao shallow pelatineius peduncle: lackine
Mmesentetios, Gonad completely surrounding stomach
HWeupper halls the cogs are subspherical arranged in
haphazard vertical rows of 2-3. embedded in the
vonad wall Mouth round. simple, at the end af a
723 L. GERSHWIN & W. ZEIDLER
Fig. 8. Zacleu carinata sp. noy., holotype female. lateral & aboral view. Seale bar= 0.5 mm.
PELAGIC COLLENTERATES OF THE NUYTS ARCHIPELAGO 233
Fig. 9 Zanelea baudini sp. noy., holotype male (2); A & C, lateral & aboral view: B, base of one of the tentacles. Scale bar
= 0.5 mm.
224 GERSHWIN & W. ZEIDLER
relatively long proboscis. reaching slightly below the
velar opening an fife, not quite reaching: it when
preserved, Tentacles 2, about half BIT when relaxed
naturally. Cdophiores about 20 per tentacle, on the
abaxial side: in lateral rows of 3 across proximally,
pradine to 2 ucross niidway, and finally arranged
sinuly distally, The shalis of the tentacles and the
enidophores are minutely ringed, giving a rough
appearanec, Tentacle bulbs short, tapered, on the two
perradi? lacking tentieles the bulbs ure completely
reduced to only a thickening of the ring eanal,
Velum narrow. Statocysts and ovelli absent,
Colouration in lie: the radial canals, ring eanal,
und tentacle bulbs ate reflective opaque white, Ute
stomach and tentacles are whilish but less bright; (he
bell jelly ts transparentand colourless,
Nuvintion from the Holowipe
‘Two of the paratypes (I male, | female) have
very shallow, rounded apical projection, rather than
a slight depression.
Appearaner!
lixtremely diffivultto identity with the naked eye,
very small and non-deserpt. Inactive. slays an the
hotlom of the sorting bow),
Mivnrology
The speenie epithet, “eerie iy derived from
ihe RV Neen, named for the aborigiial word
meaning “good lishing.”
Zanclea carinata sp. Woy, (Fie. 8)
Material Lyeamined
Holutrpe: gravid female. BEL 1.2) mm, BD 1,38 in)
(U1149), Potel Bay St. Franeis 1. coll, LG. 23 eb,
2002,
Type Lueatity
Perel Bay, St. Praneis T, Nuyts Archipelago, SA.
MiadeHaN is
FZanelea with about $0 cnidophores per tentacle:
with a pronounced keel on cach of the 4 maim radit.
uboul hull the height ofthe belly with a narrow track
of nemateysts running the entire leagth of the 4
keels: lacking an apical projection and pedunele,
Deseniplon
Body nearly spherical, with 4 relatively large
perradial paravanes on the lower half af the bell.
apex slightly concave, licking apieal mass.
Pxumbrella devoid of pematouysts except for a
narrow track running along the entire length of the
crest ol cach paruvane. Stomach short. broad, Mask-
shaped, round in cross seetions an a very: short
peduncle; lacking mesenteries, Gonids 4, cach a
vlobular mass projecting outward al (he tterrad)i
midway down the stomach wall, Mouth round.
simple, reaching a little less than NullWwaty toward the
velar margin, Tentacles 2, each with whout 40
abaxial cnidophores and about 20 adaaial narrow
papillae; about half BLL in length when preserved.
Tentacle bulbs 4, of two sizes; the two beneath the
tentacles are smalland globulary on the wo perradii
jacking tentacles, the bulbs are greatly reduced.
about Vy the sive of the normal bulbs. Veli
iInnderdtely harrow, thin but rigid, Statoeysts
lacking. Ovelli lacking. Radial canals 4, prominent
but narrow, Ring eanal about the same width as the
radial canals,
Colouration in life: stomuch, gonads, radial
canals, lentacles and bulbs white: the remainder of
the body colourless and transparent.
Appearatice
Unbkely lo be noticed with the gnaided eye.
Momalogy
The speeitic pame is derived From the Latin for
“keeled” referring to the perradiil paravanes that
characterise this species,
Zariclea baudini sp. nov, (Vig. 9)
Mearenial Examined
Holonpes male (2), BIE LS! mar BD 1.62 min
(HI TS0), Petrel Bay, St Francis 1, coll LG, 25 Feb,
2002,
Type locelin
Potrel Bay. St. Vraneis 1. Nuyis Archipelage, So4-
/ingnosin
Zanele with i tall body, with a well developed
apouphysis on each of the 4 permadit, fren
downward: with well over LOO enidoeysts per
tentucley lacking an apieal projeetion or peduncle,
Deseriplion
Body of holotype specimen badly crumpled, when
preserved, billoon-shaped with a wide, Hat apes ancl
the margin pursed mward. Exumbrella smooth. with
4 relatively large, gelitinous perradial prominences,
on the ends of which lie the exumbretlar enidoeyst
pouches. Stomach large und imperleetly cruciform
althe base. quiidrate throughout its lengths large and
flask-shaped when viewed laterally, with a narrow
proboseis and simple, round mouth, reaching ta
wubout the level of the velar opening; without a
peduncle or mesenteries. Cronads 4, broad, Tatlened,
with several verticul lfickenings, oceupying. the
entire stomach wall above the proboseis, sepuruted
PELAGIC COPLENTERATES O) THE SUYTS ARCIUPELAGO aan
Fig. LO, Lewddieie sp, (411237), Petrel Bay. St. braneis Island, Nuyts Arclipelaze, S.A A. aboral views B. external view of
tenticles from one of the quadrants. Seale bar = |.0 min
only narrowly at the perradii, Tentacles 2, about (5
s BH when relaxed naturally; with smoothly tapered
tentacle bulbs, with a short abaxial exumbretlar
chisp, The upper portion of the lentaele bulb is
smooth, with a short region of abaxial curled
corrigations proximal ta the enidophores.
Chidophores abuanil extremely numerous and
densely crowded, well over [00 per tentacle, On the
two perradii lacking tentacles, the bulbs are
vompletely reduced. Velum moderately wide.
Slatoeysts absent. Ocelli absent, Radial canals 4,
moderately narrow, but conspicuous: smooth-cdeed,
me
z
fat
L. GERSIIWIN & W.
236
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LHE SUYTS ARCTHPRLAGO SF
Vin Dh Svenranhore falklondicn Beowae. 1907 (Ue PE
U388), Vivenne Kay, Kangaroo [skated Photo: KL.
Gowlelellolmes,
straight. Ring conal about the same width as the
radial canals. Colouration in life: stomach dnd
tentacle bulbs whitish, with orange endoderm al base
of stomach und on adasial side of tentacles; the
medusa has a mostly white appearance, with
Iransparent, colourless mesouled,
Appearance
Unlikely to be noticed by the unaided eve.
Eivmology
Named to honour the French explorer Nichols
Baudin in celebration of the bieentenary of his
historic meeting with Matthew Flinders,
Remarks for all Species of Zanclea from the Nuvis
Arehipelase
The four new species of Zanedee listed above ure
distinguished from their congeners as sammarized in
Table 5, OF the species with a hundred or more
cnidophores per tentacle. only 2 protect Hastings.
1930.4, hamale Boero et ad.. 2000 and 4. servi? hive
an apieal projection. Zanelea sardii is easily
separated trom 4. pro/eete, which has an elongate
body and only 4 gonads with a median furrow, in the
gonads being su deeply furrowed that they have the
uppearanee OF & sepurate organs, dnd in the body
being wider than long. Nor would Zaneleu serail be
cusily mistaken for 4. bomnala. which has 4 tenwecles,
4 gonads, and small mesenteries; 4. seredii, in
vontrast, has 2) tentacles, & ganuds, and no
Mesenteries,
Zanclea buudini is most similar to 2. prveete, with
both characterized by a tall bell with prominent,
downward-facing upophyses. However 2. protected
has a bluntly rounded, conspicuous apical projection,
wheres this structure is entirely lacking in
houdini buthermore, 2. proftecta bits apophyses
Olly above the two tentacular bulbs, whereas in
238 L. GERSHWIN & W. ZEIDLER
Pie. 12. Spheermaectes sp. (111236), Smooth Island, Nuyts Archipelago. S.A.: Jateral view, ‘Seale bar= 1,0 mm.
4 haudini they are on all four perradii.
The other two species are also casily
distinguished from theit congeners. Zanelee
carinata, with about 50 cnidophores per tentacle,
and #. ngeriana, with about 20, are most similar to
4%. giancarloi Boero ef al,, 2000 with about 50, and
7. polymorpha Sehuchert, 1996, with about 70.
Live specimens of Z polymorpha typically haye
un-apteal projection, whereas such a structure 1s
absent in both 4. carinafer and 4. ngeriana.
Zanclea carinata has a consprenous keel or
paravane along the entire length of the body im
each of the four perradii; these siructures are
absent in both 4 polvmerpha and 2. gtancarloi.
The gonad of 2. #geriana makes the species quite
distinct, bemg undivided and completely
surrounding the upper hall of the stomach. In all
other species of Zanc/ed, the gonad is divided into
4 or 8 parts.
Another closely related genus, Zanclella Boero
& Hewitt. $992. is distinguished from Zurefeu by
characters specific to the polyps. The medusa of
Zanelella vlamboides Boero et al. 2000 is
superficially comparable to that of Zancled
weeriana. in that both haye only about 20
cnidophores per tentacle. However. Zurcl/ea
neeriana lacks the mesenteries characterisue ol
Zanclella elomboides, and has a single continuous
gonad, whereas 7 glomboidey has ut least 4
distinct masses, While it is possible that Zaneled
ngeriana may eventually be placed in the genus
Zanclelly when the life eyele iy elucidated, the
unique medusa characters would sitll keep al
separate from 4. glamboides,
PELAGIC COFLENTERATES OF THE NUYTS ARCHIPELAGO 234)
Fig. 13, flevaphilia scoreshyj gen, et. sp. nay, holotype female: A & C. lateral & abaral view: B. terminal end of one of the
tentacles. Scale bar = 1-0 mm.
230 L.. GERSHWIN & W. ZEIDLER
Sub-class Leptomedusae Haeckel, 1866
Order Conica Broch, 1910
Family Aequoreidae Eschscholtz, 1829
Genus Aequorea Peron & Lesucur, 1810
Remarks
Two different forms of Aequorea (spp. A & B),
were found at Masillon Island. A third form (sp. C)
was found in large numbers coastally throughout
much of southern Australia, so we expected to find
it at the Nuyts Archipelago. All three species are
thought to be undescribed forms, which will be
described as part of a revision of the Aequoreidae.
Sp. A. Bright pink, with enlarged tentacle bulbs
anda very long manubrium.
Sp. B. Pale blue, with many fine canals and
tentacles.
Sp. C. Transparent and colourless, with 16 radial
canals and 2-3 times as many tentacles.
Family Laodiceidae L. Agassiz, 1862
Genus Laodicea Lesson, 1843
Laodicea sp. (Fig. 10)
Material Examined
One specimen, BD 15 mm (H1237), Petrel Bay,
St, Francis I, coll. LG, 23 Feb. 2002,
Remarks
Unfortunately, the single specimen captured
curled during observation, so could not be fully
studied, Observations of the living animal were
noted as follows: radial canals and stomach pale
pink; bell flatter than a hemisphere; 2 of the 4 radial
canals appear “braided”; numerous tentacles, each
long one with | black adaxial ocellus; between
tentacles lies | cordylus and | cirrus, without ocelli:
velum narrow. Further notes added after
preservation included: about 20 tentacles per
quadrant exact limit of quadrant difficult to
distinguish; stomach with undulating lobes.
Laodicea indica Browne, 1905 was reported by
Southcott (1982) from southern Australian waters,
but the relationship of the present form to
Southcott’s specimen, or whether either is referrable
to L. indica, is unknown.
Genus Staurophora Brandt, 1835
Staurophora falklandica Browne (Fig. 11)
Staurophora falklandica Browne, 1907, pp 472-
473; Browne, 1908, pp 235-236, pl. 1, figs. 1-7, as
new species; Mayer, 1910, pp 293; Kramp, 1919, pp
39-47, comparison with S. merfensii, said to be
identical; Russell, 1953, pp 239-240, possible
synonym of S. mertensii, Kramp, 1957, pp 29-30,
junior synonym of S. mertensii, Kramp, 1961b, pp
148-149, junior synonym of S. mertensil.
Material Examined
Holotype: BD 84.56mm (NHM_ 1941,3.20.202),
Falkland Is., 7.1.1903, “Scotia” Coll., studied by LG
Feb 2001.
South Australian Material: 4 specimens (H1384),
Petrel Bay, St. Francis [., Nuyts Archipelago, coll.
LG, 26 Feb. 2002; 2 specimens (H1385), Dog
Nuyts Archipelago, coll. LG, 24 Feb. 2002; 3
specimens (H1I386), north side of Flinders |.,
Investigator Group, coll. S.A. Shepherd, 26 May
1999; numerous specimens, BD to 200 mm (H1061,
also PH 0048 & XH 0097-101), Vivonne Bay,
Kangaroo [., coll. LG, 4 May 1999; 9 specimens
(111387), American River, Kangaroo I., coll. LG &
WZ, 2 May 1999; | specimen (H1I388), Penneshaw
jetty, Kangaroo 1., coll. K.L. Gowlett-Holimes, 30
Apr. 1999; 1 specimen (H1060 = PH 0048),
Edithburgh jetty, Yorke Pen., coll. K.L. Gowlett-
Holmes, 18 May 1992; 1 specimen (H1I389 — PIT
0043), same data as previous but coll, [1 Apr; 8
specimens (H1390), off Edithburgh, 20 km S. of
Marion Reef, in trawl 37 m, coll. W. Rumball, 26
Jun, 2001, Approximately 200 additional specimens
(BD about 200 mm) casually examined in the field
and released, Vivonne Bay and American River,
Kangaroo I.
Diagnosis
Staurophora with large and small tentacles
alternating 1n size; with ocelli on umbrella margin at
base of large tentacles only; lacking diverticula of
the radial canals.
Description of South Australian Material
BD up to 223 mm. Bell extremely flattened in life;
with thin mesoglea, only 7-8 mm thick in the largest
individuals, tapering to margin; transparent.
Exumbrella smooth. Radial canals 4, straight,
lacking diverticula, Mouth set along entire length of
4 radial canals, crenulated, with thickened margin;
H-shaped in many individuals, X-shaped in most;
whitish in juveniles, bright pink in mature live
individuals. Gonads upon walls of mouth, equally
spread upon inner and outer portions of folds.
Tentacles extremely numerous, in two size classes in
separate whorls upon margin; coiled; white in small
specimens, purple in large live individuals. Large
tentacles higher upon margin than small tentacles;
both with exumbrellar clasping bulbs: large and
small tentacles in 1:1 alternation in specimens of all
sizes. Marginal cordyli approximately 0.20 mm
long, with narrow stalk and swollen head, connected
directly to margin, singly between every two
TE LAGIC COLLENTERAPES Ob CTITE NU YTS ARE TIPE AGO 4?
tentueles (large and small, nearer ia small tentacle
Asingle oevellus at buse oF eavh lume tentaele only
on margin Of umbrella, not aetually on fentacle bulb
black. Velum marrow. Statucysts could mol be fund
horiettiant
Symmetry Varkation Poul ii ge Lew tiellyaduels
exhibiting trrradial or pentaradial form, Other
Varkints Found with carkils branehiny sueh that there
urd more candls reaching the margin than stomach, of
the opposite, resulting in wring around the centre
porn,
Rentavks
Kramp (1997) mistakenly stuled yal Svomrophera
fatklandica ts identieal wih So ywnertensi® Wranull
(435. ln his re-exanrination of North Atwane and
Halklund specimens. le found dha hath extibrted
sian vation i lentacle sive; Browne (1908)
expressed coneern over thes charaeber an his
dyseviption of 8 fa/Mandiva based on a sinule 90
mm Specimen. However, the present colleeuion of
numerous. Hirde and small speeiinens mateles
perloctly the description for 8. fdk/umelice, tay all
specimens haying Ovo sives of tentacles. lacking the
varution seen by Kramp. Murthermore, the tadiul
curls da nat mateh the form layown for. ertediey
(iNusthated (i) Bead. 1838),
The most complete deseriplion available for Ss.
mericasit is atve by Russell (L953). Me describes
literal brunehed diverticula OF the melial Ginals. with
the wolads oF [he diverticula, This contrasts sharply
Wilh the radial canals of the Austratian specimens.
Which lack any trave of diverticuke. the wonids are
set pou the side-wills of the starmaeh or mouth.
Russell (7953) also states that there ys an aadundal
ovellus on each marginal tentacle bulb and that there
are ho murethul cin. However, in the Australian
material, eault fill-siged tentacle alternates with a
very soil entucle or cirrus, the peel ane only at the
bse ofeach tupge tentacle. but nol on the bulb jtsel
Vis arrangement of tentiele sizes und ocelli is the
sine i speeimicns OF AIL Stves studicd (105-223 mm
BD). Curiously, Browne’s (lOQK. plod. fiz 4)
medusa hid oeellt on the tentacle bulbs thenselves,
The colour differsoas Well, with whe British medusae
having ligh| rosy tentagles and rosy or yellowish lips.
and the Aushalian medusae having bright pink lips
and purple tentacles. 1 is uncle why Kranp (1957)
ehuse to synonymize the two species bused an
tnlucle sive alone, wiorine the differences mm cmal
farm and arringement of aeelli.
The rmanzmal eordyle (= clubs) are worthy of briel
discussion. Hlarlfaub ({897) stated thal (hey develop
ity tenigeles; Mayers (1910. pl 26, fig. 4)
ustration of S. renews] certainty uppears to shay
convertimg cordyli. as they ure Jong, set upon bulbs.
ud Tiwe in Geellus ah the base. Browne (1907)
discussedt this phenomenon in dept for Leelee
abd coneluded that conversion is met the normal
course OF development. bul instead wises only when
Ihe nw is Gvererowdedl with rapidly developing
tenacles. is in young medisue. The present
speenmens do Tot siigeest conversion. us te eordy li
are esirentely small connected directly ta the
Mr, AN GQeCLMIN Th TeBULLE Arran weHicHt closest
to the small ventaeles, The two chisses of tentacles
md the corndyii do mot exhibit structural or sive
intermediates in the presen collecnion, Perhaps most
WMyporanuy. the cordy lh ure al undoubted cordvlus
form, having a narrow stalk, a swollen tead. ve
Hetmatpeysis. No marvin bab, aod no oeelly they
do nolappear to he transforming into wentacles.
Miere las been some discussion bout the
proposed bipalir distribuiion of Stanroptiong. Mayer
(1910) commented that iS) falilandice were
synonymous with Samer i would be a
remurkuble ease oF bipolar distribution. Kramp
(1957) attempted. to settle the urgament by sitting
that here is but a single. bipolar species, namely Ss,
merivasil. Wpwever we consider them avorthy af
specie reeonnition becuase the Wo Jorms. ditler
morpholowically und peouraplhically,
Disteitution
This ts dhe first revord of this genus i Australia,
Where so far i Has only heen found i South
Australia. Flsewhere, i has only been reported tron
(he Palktiod Ishinds, South Atlintie (Browne 1908:
Mayer 1910)
Sub-class Siphonophorac Esehschioltz, 1829
Order Calycophorae Leuckart, (854
Family Sphaeronectidae Huxley, 1859
Genus Sphaerdnectes Wurtey, 1859
Sphaeronectes sp. (vis. 12)
Naiterial Eventi
One specinten. BH about 4.0 tin. BY about 4.7
mim (236), Smooth by call LG, 24 beh 2002; 7
specimens approximately 6 mm BMD (fisinegrated
prior fo Hiaiton and not kept). Petre! Bay. Sk Prunes
j.. coll, LG. 25 Feb, 2002,
Deseription
Body asymunetrieal donie-shuped. Nectosae large.
uboub half the hewht of the body. Somitodyst
Straight not clurving toward the dorsal side of the
fiydrouveruni, scalpel-shaped, wally Che dorsal side Alt
und the ventral side evenly rounded; long, extending
ouiward even with the ouler boundary of the
sumatooyst: bluish or yellowish. Radial eanals
ating from the apes of the nectosue. Stem
vellowish-white. with red Mecks,
is
32 L. GERSHWIN & W. ZE[DLER
Fig. 14. dglaura sp. (HI311), Petrel Bay, St. Francis Island, Nuyts Archipelago, S.A., lateral & aboral view. Scale bar =
0.5 mm,
PELAGIC CORLENTLRATES OF THE NUYTS ARCHIPELAGG
Fig. 13. Nawsithoe sp, (H11244), Petrel Bay, St. Francis Island, Nuyts Archipelago, S.A4 A aboral view of female: B. lateral
view of sinaller mae. Seale bar — 0,5 mm.
Appearance
Body spherical lo evg-shaped, hollow in the
middle, with a faintly bluish somatoeyst arching over
the hollow and a whitish stem coming down one
side.
Remarks
This is the first report of Spfueranectes from the
Great Austrahan Bight.
sub-class Limnomedusae Kramp, 1938
Family Olindiidae Haeckel, 1879
Genus Hexaphilia gen, nov,
pe species
Hexaphilia scoresbvi sp. Noy,
Diagnosis
Olindiidae with hexamerous radial symmetry: with
short, linear gonads on the distal portion of the radial
canals; with numerous tentacles all alike, with
terminal nematocyst cluster but lacking adhesive
pad: with 2 statocysts per paramere.
Etvmolagy
Named for the strong expression of six-parted
radial symmetry.
Remarks
Hexuphilia is distinguished from the other
genera in the fanly Olindiidae on numerous
characters, as summurived in Table 6.
The issue of symmetry in medusae is of
particular interest. Tt was not uncommon in the
older literature for species and even genera to be
described merely on the basis of their symmetry,
When, in fact, they were merely variations (often
clonal variations) within the norm of an established
species (See discussion in Gershwin 1999),
However, while most medusa species are
fundamentally tetramerous, there are a few which
have a body plan based on some other symmetry.
Sull others are a chimera of symmetries, with a
letramerous manubriun but hexamerous body. or a
similar) combination, In the present case,
Hexaphilia scaresbyi sp. nov. is hexamerous
throughout, and does not appear to be structurally
identifiable with any known telramerous genus or
species.
Hexaphilia scoreshyi sp. nov. (Fig. 13)
Metevial Examined
Holotype: sravid female. BD 6,35 mm (111145),
Petrel Bay, St. Francis €, coll. LG. 25 Feb, 2002,
IN & W. ZEIDLER
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PELAGIC COPRLENTBRATES OF THE SUYTS ARCHIPELAGO 245
each with a mass of red granules embedded in the
wide end, Pwo small, marginal thickenings of tissue
on either side of one gonad; both have red granules
inside und appear to be reduced gonads upon the ring
canal Tentacles numerous. ungrouped, short. solic:
naked along length, with a very small. terme ball of
nematoeysts, All tentacles arise from the Gutermeast
vey
nly Henk
} with nemitocys
Purcatypes: S specimens, BD 119-439 min (L146),
=, . sime dati as holotype: 2 specimens, BE 3.97. 3.83
ss = a a
= EBs 3 - mm. BD 4.8], 3.93 mm respectively (HT090),
z Z5- 3 5 Port Sorell, Tas, coll LG & WZ. 45 Feb. 2002. |
uu} eo = Z aa : > 1 .
. 2/5 SES 3 3 specnmen (TMAG KIKTO). Same data as
£ 5/5 5 =Z=ee = E previous: 7 specimens (111092) and 7 specimens
a iain fem aaah (IMAG ~ K2809), BIL 1.3-4.16 mm, BD 1.62-
a= S53 3.94 nim, sume data os previous but coll. 24 Veb.;
¢ |? _ 82 sae ¢ J specimen. BEE 1.09 mm, BD 1.43 mm (H1091),
= EFe#e £3 = > T i &
SB /EEEE =f26 & George Town, Tas., coll LG & WZ. 24 Jan, 2002:
Gijz2s2282 mia 2 | juv. specimen, BH about O,25 mm (ili )2).
Ulverstone. Tas., coll, LG & WZ. 4 Feb, 2002.
= z - ,
2 iin Tipe Localiny
2 F. = 4s Potrel Bay, St, Praneis 1. Nuyls Archipclave. SA-
4 = = 5 255
B Pus & 322
z a5 2 = 2a: Eivanilogy
Pr zeze aes Numed to honour Dr. Scoresby Shepherd,
Ez : Descriplion of Holutype
5 Z - 2 Body hemispherical, Osxumbrella smoothly
EN = 2 55 = s rounded, without nematoeysts, Radial canals 6,
Beles ¢ 3 “Waa harrow, simple. stramht. Ring canal about the same
g)/EEBS323 2B 3 < . al
a S\52525 2s 3 width as radial canals, Gonads clomgate teurdrop-
| Le er ied = shaped. tipered proximally, widest distally; on the
a2 = . pe : :
oe = distal’; of cuch radial canal, touching ring canal:
= = 5
do with
VVItiout udjiesive pads
Numerous. without bulbs,
3S
=
=
7
=
3
=
=
=,
2
SVE
£ &
a3
5
=
=
tt
2
=
distal end st
at 4-8 hollow
idhesive pads, pls nurerous
alike short s
lerminal nemaloevst vluster
Numerous. 2 kinds: |> above bell Terminal on
Tentacle =
and form
3
= = cdge OF the ring canal, lacking true tentacle bulbs:
: = “Zz However, Most tentacles ure basally affixed to the
exumbrella. with the free portion of the tentacle
a S € #42 3 issuing from some distanee up alone the bell wall,
5 z 2F & g = The length of attachment varies considerably Irom
ea % ele = 5 2, one tentacle to another, Other tentacles arise directly.
33 FA SSg433 28. With no sessile portion. The margin of the bell hus a
zB 2 S94 fsae Ef B slight overhang that is divided by the sessile tentacle
cs oa Seog Ss= bases, reminiscent to the narcomedusan bell marvin
1 ie that fs scalloped by the peronia. Statueysts 2 per
3s extant: free cetodermals equidistant between the
Eig be ~ 7 . perradii or located slightly Hearer to the perradii than
= I A to the interradii, Stomach NMask-shaped. very narrew
2 [8 - = 7 and short: with 6 external, perradial, longitudinal
= 2 2 Bi 5 5 ridges: connected directly lw subumbrella, without a
O she 2 = = pedinele or mesentenes; with a small cluster of ped
granules m the center. Mouth simple, more or less
cn round but contorted in formalin, lacking lips. Velum
5 = * moderately wide. Ocelli and cirr) lackiny.
= = = Colouration in Tile: stomach ond gonads light
Ls ny 2 £ a a brownish pink, bell transparent ane colourless.
Sn ~ 2 = 3 =5
2s S = =2Z 5 Fariation from the Holainpe
qs 22 Sa =}, One individual (from T1460) lias injperfeet radial
RAT L. GIRSTAWIM & W, ATIDLER
canals and gonads; only 3 radial canals connect with
(he stomach, and one of those as bifurcated: and
anastomosed back unto itselly the 6th canal conneets
only with the ring vara) nol with the stomach, There
we 3 pormil sized ganuds. all on normal canals: one
normal canal leks a gonad alawerher while the
bifireated cual has a reduced gonad. The centipetal
vanal hus amdimentary gonad,
‘prearanee
Somewhat fatter than a hemisphere, parkish
brown. with O conspicnous Bondds Hear the mare
Inavtive Swimmer, spending mast of the thine
neulrally buoyant or iver the baton,
Developatent
Only one carly juvenile specimen is Known (HTT 2),
With uv BEL of about 0.25 mm it has a bhumly rounded
soli, conical upical miss; the body is tall ind bell
sbuped. rather than hemispherical: the stomach. is
Nask-shapedd, with the nioutl) reaching about '/y the
distance Wavard the velar imurging the gonads uve
merely thickened regions along the extremetios of the
six radial canals: (here are 2-4 tentacles per hextant, oF
(he same formas in theeadule Statocysts were nol vel
developed. The veluim is extremely wide. closing off
all bula small hole in the center of the subunibrellar
cavity. An older speeimen (rom F114) is nearly 4
times the BH. and cilready resembles the adult form,
including (he passessivn of Gonads.
Distribution
Presently known only trom the Nuyts Archipeliuse
W SwA. and yorther Tasman from Pork Sorell
Georgetown and Lilyerstone,
Remarks
We believe (hat the marginal thiekenimes of tissue
near one of [he gonads was ao aberration, as it only
appeared in one paraiiere of the holotype and wis
not found on other specinens. For the tentacles. we
could find no pater to the lengths of the affixed
hases, or to the ratio of free tentacles to alfived
teritacles, eXcepl that the perradial bases typically
Inve a lonper ottachement.
Another hexamerous olindiid wiry deserbed hy
Bigelow (1912a, TY19), Neanaredus halius (ofien
incorrectly spelled “Narearefas’). Hesephifia
searesied differs fromm A, faliay in niany important
respeets. First, in A. dedins the gonads are Mat and
jea-like, expanded laterally, whereas in 2. seureshyi
they are linear to slightly vertically pocket-lke and
not laterally expanded, Furthermore, the gonitels
Gecupy mast of (he length af the radial canals nN.
haltius, silted toward the proximal end. whereas
(hey are conlined to the distal regions mH
seoresbyl, Second, in No hettiny evel of ihe 12
tentacles is ringed with nematoeysts distally and
proved with @ statouvst wadyaeent lo ity base.
Whereas iw 7A scomshyd the tentacles: dire nuked
except fora small ball of nemalocysts al (he end, and
the |2 statowyats do fot correspond with any al’ the
juntawles. Third, in, /redigs the lentacles are pressed
agaist the exumbrella into furrows, (his appears
to enierge from above the marging // sconesfad, in
contrast, lucks such lurrows and many of the
Jenlaeles really do arise from the exuimbreliit, Fourth,
the BD of N. hating Lypically reaches ubout 12 nin,
Whereas Wh fA seares avy ibis only: hall that size.
Class Trachyling Uacekel, 1874
Sub-class Trachymedusae Haeckel, 1860
(Order Trachymedusae Haeckel, 1866)
Family Rhopalonematidae Russell, 1953
Gonwy tglaara Pérvon & Lesucur, 1810
Avlaara sp, (Vig. b+)
Muotertal Exaiidinedt
Male. BIT 2.26 mm, BO 2,33 mm, illustrated
(MU31). Petrel Bay, coll, LG, 25 Feb, 2002) 5
specimens (LEL244). same data; 17 specimens
(FL39)), Stine data but call 22 Feb,
Deseriinion al Nuvis drehipelage Material
Body bell-shaped, with straight sides. (he upper!
strlvht bal at about a 45) angle. and a canijully
convaye apex with a stedight rin, wiving the
appearance of a Mat op. Exumbrellir surfaces free oF
nemiuiocyst warts, bet wilh numerous tne
longitudinal ridges; mesoylea very thin. stichy t
vluss and plastic sulfices. Stomach mounted at the
end of a tong, Lipered gelatinous pediiele; small,
round in cross section, Mouth quadrale, wilh 4 she
lips, wounded at the corners, reaching into the Tower
hull of the sabumbrelliar cavity, Gonads 6. sausaye-
Shaped. projecting laterally inte subymbrellar space
fram the Jower portion of the pedtiriele, not
connected to the slonmeh. Tenticles Sper octant:
narrow. sohd. with a swollen tips most broken ot
close to the body. those present are up (a about BEE
length, Stalaeysts & observed in living specimens,
bul notapparent io preserved materal, Ocell absent
Radial cunals 8. steaiwht, smooth-edged. narrow —
even liner along the pedunele, Ring eanal about
iwike is thick as radial cunals. Velum very wide:
Colouration in He: completely transparent aiid
golourless,
laviation
Most of the specimens have 4 tentacles per oetunl.
ihouzh this does not appear to be related to body
size. as the other specimens are about the sume size,
However a2 young specimen (BE 142 nin) hid only
3 tentacles per ockint.
MELACHO COLES TRRATES OF THE SEY TS ARCTUPELAGG ou
Ippearance
This species is completely clear and therefore hard
to see in a plankton sample. and is only observed
TRWIASE a strong Upwardly directed Haht. It is alinast
hways found on the bottom of the sorting bow,
sometimes with its side or apex siuek to the bowl,
Remarks
telaura henistame is said to be mare or less
cosmopolilan, and has long been the only recounted
species ih the genus. However, the deseription is so
general that i allows for the inclusion of multiple
forms. We lve specimens trom the Nuyts
Archipelavo und from Tasmania which do aot appear
io be conspecific with each other, but beth fit the
hroad description of 4, fieniisfone, originally
desenbed from the cousl of Niece. We therefore
believe that there is inore thin one species ol
dylaara, but will not revise the group until id mere
comprehensive collection can be studive,
lefadre was reported by Blackburn (1955) us
being the most common medusa olf the seuth-
raster Australian coast: it has alsa hen reported otf
southern WA. We have silse found it off the SA. anil
‘Tasnuiian cousts,
Subclass Narcomedusac Hacckel, (879
Order Narcomedusae Hacekel, 1879
Family Solmarisidae Haeckel, 1879
Genus Solmaris Macekel, 1879
Solmaris sp.
Material Examined
One specimen. Dog Ishind. northeside. in Tago.
Nuyts Archipehigo., coll 1G, 24 eb 2007:
Numerous specimens, Petrel Bay, Si, Francis |, call.
1G, 25 Feb, 2002,
Remarks
Thissouthern Australiun (orm ol Sodas matebes
descriptions in Krdinp (1961p) ane Mayer (P98 T0) 0)
S, rhodeloma, Nowever, with the lisonomy hased.on
tentacle nuniber, hts cowbell thal diferent forns
can be recoxnived, The Nurcomedusae are badly in
need of revision and itis Tikely that the southern
Australian species will eventually prove to be
diferent from the Chilean forms thus, this
assignment should be considered premilinary,
Class Sevphozoa Goette, 1887
Order Coronatac Vanhitten, 1892
Vamily Nausithoidac Hacckel, 1880
Genus Nausithoe Kélliker, D853
Nausithee sp. (Pig. 15)
Material davcunmned
Three specimens (111244), Petrel Bay. St braneds
1. coll LG. 25 Feb. 2002, One specimen, a gravid
lemiule his BD 2.66 min (ineluding lappets), the
Other twa. tipparently Hales, are curled, but appear to
heaboul the sume size,
Renrarks
These specimens could not be assined lo species
with contidence. They were much smaller thay
typical Newsithoc, and lacked amy distinctive
pigmentation but had mature gonads. Typieal ot
Nevisitfioe ephytuc, they lacked tentacles and had
only a single gastric Hlament in cach quadrant (see
da Silveira & Morandi 1997). Possibly they were
ephyrie or some peculiar neotenic forn.
Kramp (196La) reported Naivithee puncteter from
Green L. North Queensland: this is the (rst report al
Nausthoe in the witers of South Australia,
Phylum Clenophora Eschscholiz, 1829
Class Tentaculata Eschsecholtz, 1825
Order Lobata [Eschscholtz, 1825
Family Bolinopsidac Bigelow, 1912p
Bolinopsis sy).
Remarks
Vani speenmens of Boliapsis ap, Were cuupht,
bub could not be positively identified us. or
distinguished from, the known snmill-lobed species.
They oovurred less densely inthe Nuyts Archipelago
than on the mainland, where thev sometimes blanket
the surface of the water in the middle to late summer.
amily Leucotheidae Krumbach, 1925
Genus Lencathea Mertens, 1833
Lenucothea sp.
Material Ryaniied
One Trigmentiry speeimen i weohoal wvnd liquid
Witrogen. near North Point, St, Praneis [, [32° 29°
33.9" $8. 133° 1659.0 1], coll. S. Murray-dones. 23
Peb, 2002, One specimen (BL en. 130 ni). used fae
biohinineseenee experiment. Venclow tb, [32°
4474S. 199 17580) 1] coll LG. 25 Feb 2002
Several specimens were observed ut Masilon [| 32”
AS.58 1S, 133° PTOAT LLG, 25 Feb 2002,
MD reenasin
Leneoti with narcow bhid pits. large Tobes,
bimarphie meridional canal diverticala, and lucking
any distinctive body piementation,
Deseriplran al Soul dasiration Maiertal
Body burrel-shaped, tu about 1S en body ener:
with uboral extensions af the boty on the
substomaded! plane with bespeet tothe subtentucthir
plune, Body suriiee with evenly spaced, narrow,
conicnl, velutmeis pupilltie: net numerous,
238 L. GERSHWIN & W. ZEIDLER
particularly sparse on the lobes. Lobes huge,
estimated to be as long as the body, but severely
damaged in all 4 specimens; inner surface finely
meshed. Auricles 4, about 5 cm long when. fully
uncoiled, narrow, round in cross section, evenly
tapered; with two rows of cilia on slight aboral
ridges. Tentacles very fine, broken in all specimens
at about 5-10 mm from body; total length could not
be estimated. Blind pits emitting from tentacle bulbs
paired orally and aborally, with the aboral branch
being approximately 3 times as long as the oral
branch, both ihe same width, Statocyst within deep
cavity at aboral end of body. Substomodeal ctene
rows run the complete length from the aboral crest,
out onto the lobes to about the level of the mouth.
Subtentacular ctene rows complete length from
aboral crest to somewhat oral of the auricles.
Meridional canals underlying the comb rows with
continually adjacent narrow blind diverticula,
alternating shorter with longer on the subtentacular
canals but all the same length on the substomodeal
rows.
Colouration in’ life: transparent to
translucent, faintly orange throughout.
slightly
Appearance
Most likely to be collected completely fragmented:
extremely soft and diaphanous. Much of the body
surface is covered with gelatinous papillae, and the
auricles are long, narrow, smooth, and cylindrical to
gradually tapered, and often held coiled in a bee-hive
form.
Distribution
We have found at least two different forms of
Leucothea around southern and eastern Australia,
one along the coast of the mainland, and another in
southern Tasmania. The exact range of this form of
Leucothea has not been determined, as we are not
confident that it is conspecific with specimens we
have caught in the Bass Strait or southern
Queensland.
Remarks
The species delimitations and recognition criteria
within the genus Leacothea are not well determined.
Specimens are extremely difficult to collect intact,
cannot be relaxed in MgCl, menthol or other
houschold chemicals, and fragment into an
unidentifiable mass of cells in formalin or alcohol.
For most species of Leucothea only the general
morphology is described, with little or no
information on the internal structures, the exception
being the description of L. pulehra Matsumoto,
1988, from the California coast. Characteristic
internal blind pits of L. pu/chra were illustrated by
Matsumoto (fig. 2, B.P.) as being rather robust; in
contrast, in this form of Leucothea the pits are very
narrow. The diverticula of the meridional canals
beneath the ctene rows are of two different forms,
being alternately wide and narrow below the
subtentacular rows but all the same width on the
substomodeal rows; this bimorphic state of the
canals has not been described for any other species.
Furthermore, the colouration of this form of
Leucothea appears to be unique, being a translucent
dull orange throughout, without particular pigmented
parts in the stomach, the papillae. or the lobes.
The remaining species descriptions are inadequate
for complete comparison, and apparently no type
specimens exist. However, based upon the available
figures and descriptions, this form of Lewcothea can
be distinguished from the recognized species as
follows: Leucothea multicornis (Quoy & Gaimard,
1824) from the Mediterranean has a dull brownish
body with a brown tint to the lobes; the Nuyts
Archipelago form, in contrast, is a slightly translucent
orange, with no distinctly colored organs or body
parts. Leucothea grandiformis (Agassiz & Mayer,
1899), from Fiji, has small lobes and cinnamon-
yellow colouration of the ctene plates, gastric cavity,
and canals. In contrast, the lobes of the Nuyts
Archipelago form are at least as large as the body, and
the above-mentioned structures are not coloured.
Leucothea ochracea Mayer, 1912, trom the Tortugas,
is characterized by having lateral filaments on the
tentacles, pairs of distinctive yellow regions on the
outer sides of cach lobe, and simple windings of the
canals. Unfortunately, the tentacles of our specimens
were broken off and thus could not be examined, but
the colouration is quite different between the two
species. Leucothea japonica Komai, 1918, from
Misaki, Japan, is characterized by longer ctene rows,
distinctly shorter pharyngeal folds, and a brick-red
body with yellowish margins of the lobes. Lewcothea
tiedemanni (Eschscholtz, 1829) from near Japan is
too imperfectly described to be distinguished from
other species, and is not generally considered valid
(Mills 1998-2002). Another species, L. harmata, was
referred to by Mills (1998-2002) as being valid, but
we were unable to find any information on this
species, including its original description, to compare
its characters.
Discussion
The discovery of so many new taxa is nol
surprising considering the high endemicity of the
southern Australian fauna (Wilson & Allen 1987)
and our poor knowledge of the gelatinous plankton,
Ilowever, despite the incredibly rich bloom of
gelatinous zooplankton, we did not cateh any
representatives of several major groups, i.c., the
seyphozoan orders Rhizostomeae, Semacostomede,
PELAGIC COPLENTERATES OF THE NOY TS ARCTUPELAGO 239
and the clenophoran elass Nada, AIL of these groups
are Well represented in the Australi coustal fauna
His purtioukoly notable that we found so miuny
species of Zanled sympatrically, often finding
Multiple 4a7elee spp. in the same plankton tow. Uhis
contrasts will the lick ol spevies. clustering found on
the maihlanc. As to Zane/ee polyps were found in
the Archipelage during the Fxpedition, we do net
know Wo the medusue were living locally or just
passing through. Since Zaicled (Wedusae are fol
Known to be long lived, i seems likely that there
must be uw focal breeding ground. And given the
Massive MumMbers caught it seems plausible tht
Zanclea spp. Comprise an important part of the local
ceosystem, Furthermore, with four species found in
Jess than one week of sampling, ib ts possible that
wroater diversity would be discovered with samplings
throughout the spring, summer, abd autunai feinel
changes. Boero ef af, (2000) also found evidenve of
asignificant radiation of 4ane/ea uy the waters of
Laine Island, Papua New Cuines where they found
vight species of Zanefed, including six new to
seicnee, Given the diversity both to the north und
south of Australia, it seents likely that adeitional
species will be found in the mid-latitude Australian
waters, There is insufficient data to fully explain this
Apparent speciition phenomenan, bul we believe thal
Weshould be a priority for further study
Boero ov af, (2000) noted thin Zaue/ce medusie in
(he northern Hemisphere temperate vones seen to
develop four tentacles during ontogeny, whereas all
Australian temperate species we found fad only two,
IL therefore seems likely that Zenefeu fron the
northern and southern hemispheres represent twa
diflerent evolitionary radiations.
Acknowledgments
We thank two anonyinous reviewers for valuable
comments on the manuseript. and Scoresby
Shepherd for his paticnee and editorial contributions.
We are indebred to the stuff and volunteers of the
South Australi Museum and the stall at South
Australian Research und Development Enstitute
(SARDI). with special thanks to the Jollow ine
people for organizing the Encounter 2002 Expedition
or otherwise helping as obtain specimens and
infurmiution (in wlphubetical order): Snthony
Cheshire, Karen Gowlet-Holmes, John Kcesing,
Terry Laperousuy, Sue Murray-lones, Seoresby
Shepherd, and the etew of RY Neerin. In addition,
L.Gi is exceedingly wruelul lo Anna and Scoreshy
Shepherd and Lyn and Wolfgang Zeidler for warm
hospitality, This work was earried out a the South
Australian Museu and SARDI, ws part of a grant
from the Australian Biological Resources Study
(ABRS urint No, 20045) to LG. and W.Z, This work
Wis also part Of a project started under a Fulbright
Fellowship through the Australian-American
Fulbright Foundation to bc,
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ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA: ANNOTATED LIST OF SHALLOW WATER
HYDROIDS WITH DESCRIPTION OF A NEW SPECIES
OF CAMPANULARIA
By J. E. Watson!
Summary
Watson, J. E. Encounter 2002 expedition to the Isles of St Francis, South Australia:
Annotated list of shallow water Hydroids with description of a new species of
Campanularia. Trans. R. Soc. S. Aust. 127(2), 243-263, 28 November, 2003.
Forty-five species including one new species are recorded. The hydroid fauna of
shallow coastal reef surrounding St Francis Island to a depth of 25 m is predominantly
cryptic due to exposure to wave action and mechanical abrasion from algal stipes in
the thick algal forest and grazing by fish. Favoured substrates are small red algal
species, the brown fucoid Sargassum, the solitary ascidian Herdmania momus,
sponges and seagrasses. Larger aglaopheniid species and Solanderia fusca wre
epilithic, growing in sheltered caverns and on rock walls. Fifty eight percent of the
hydroids recorded are endemic to Australia, 30% have a southern hemisphere
distribution and 9% are cosmopolitan.
Key Words: Nuyts Archipelago, southern Australia, algal forest, shallow water
cryptic hydroid assemblage.
Promscetions uf the Reval Saeten up Stasi (2003). 127(2), 245-263,
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA; ANNOTATED LIST OF SHALLOW WATER HYDROIDS
WITH DESCRIPTION OF A NEW SPECIES OF CAMPANULARIA
by JE. Watson!
Summary
Warsos. J. Encounter 2002 expedition tu the Isles of St Francis, South Austiatin: Armotated listof’shaltow
water Hydroids with deseriplion of new species of Crmpenmlaria, rans, Ro Sov. 8. olust, P27(2Y, 244-23. 78
November, 2003,
Forty-live spevies including one new species are recorded. Phe diydroid fun of shallow costal feet
surrounding St Francis Island to a depth vl 25 mis predoamnantly eryplic due (© exposure to wave action and
Mechunieal abrasion from aluel stipes inthe hick algal forest and grazing hy fish, Fayoured substrates are small
red algal species, the brown fucoid Saegeassiin, the solitary asenhan Veredimenter pions, spones and seurascs,
Laner aghtopheniid species and Sefanedeeia disca were epilithic. srowing an sheltered caverns and on rock
walls. Pitty eight percent of the hydroids recorded are endemie to Australi, 30%) hace a southern hetiisphere
Hist biton and 98) are gosmopolitan,
KhyY Worbs Nuyts Archipelago: southern Austratioiahy
Introduction
Hydroids were collected at St Francis Island in the
Nuyts Archipelago (32° 30'S, 133° 17) 24" Ey inthe
Great Australian Bight, 40 nautical miles south of the
Australian tamland. The expedition was part of
“Hncounter 2002” celebrating the meeting in April
1802 in South Australia of the British cartographer
and explorer, Matthew Flinders RN. in FLMLS.
Jnvestizalor and {he French seientist-explorer
Nicholas Baudin, commanding the Geegrauphe and
Natretivte (Robinson ey a/. 2003),
During the 10 days ob the expedition in Pebruary
2002, hydroids were colleeted from the northern and
western coasts of St Francis Ishind and from two
smaller adjacent tslands to depths of 28 iy by the
author using SCUBA. and from two dredgings in
deeper Water,
The rocky coast of St Franeis Ishind slopes steeply
from high water mark toa sandy bottony at 10-28 m
depth avcording to site. The sublittonal reel consists
of large blocky boulders with vertical faces, smatl
caverns find some lafwer caves. The reels are exposed
to long-feteh southern geean swells ond heavy wind:
generated seas and support an dbundant alpal Movs
dominated by hinge brown kelps and fucoids with an
understorey Of red algal species (Shepherd &
Womersley 1976). The sandy hed out Mons the reel is
colonised mainly by the seagrasses, Posie spp
and Taiphibalis spp.
OF the 45 speeres recorded, one spevies is new anu
three could nol be confidently identified to species.
Hanis Reseurel Asweline Moarun of Vector, GRO Bos
ObOE, Melbourne, Yavin Jou
al forest, shallow water eryptic hydrotd assernhlape
Beeause af the similarity of the hydroid fauba ol St
Francis Island to that of Pearson Island in the eastern
Great Australian Brht (see Watson 1973) most
spectes ure fisted with a brief synonynty und
pertinent remarks, Voucher and ivpe material are
lodged in the South Australian Museum (SAM Lh)
tod Museun) of Victoria (MV FP).
Methods
With the exception of hwo dredginus (27 mand 37
m deep, see locality cata) all material was collected
by the author using SCUBA. Where possible,
specimens Were photographed “7 vite belore removal
from the substrate, Specimens were preserved in
10" Formolon board boat. In the laboratory material
Was sorted under sleren-Microscope preparatory tO
identification to Species. Specimens ueeding more
detailed examination were prepared as permanent
microshde mounts in malinol,
Systematic Account
Anthouthecatie
Tubulariidae Allman, 1864
Ralpharia magnifica Walson, 980
Ralphavia maanificu Watson, 1980: 54. fips (24.
Specinens evaniined
SAM HI331. depth 5 17m, call
heb, 2002. material alcohol preserved.
Watson,
Rewie'hs
Sparse fertile colonies, cach consisting of a lew
scattered hydrocaul’ growing i erevives protected
from surge. Stems to 70 mm high, diving hyderanith to
(5 mn across extended aboral tentacles. Colonies in
44 Joh. WATSON
un obligatory association with an aleyonaceun
encrusting the hydrorhiza and hydrocaulus, Re-
examination of a hydroid from Pearson Island, held
in the Museum of Vietoria, identified us fibuluria
larvix (Ellis & Solander, 1786) by Watson (1973)
shows the material to be a small speenmen of
Ralpheria maenificw.
Disiribution
Prndemic to southern Austratia
Ludendriidae Ehrenberg. 1834
Endenedviim Seurrumbense Watson, 185
Budendiinm curriunbense Walson, (88S; 209, figs
RQ-83.
Specimens examinee
SAM 111332, depths 5 om and 27 m, colk J.
Watson, Feb, 2002. material alcohol preserved.
Remerks
Several small infertile colonies growing on sponge
and the solitary ascidian //ercdienia monnis in
sheltered caverns. Largest colony 30 mm high and
lightly fascieled. other colonies shorter and
monosiphonic, Chidome consisting of undischareed
microbasi¢ curyteles and heieronemes similar to those
of Bhdendrium currumbense, While the more robust
hubit and faseiculation of one of the colonies sugzest
i is most likely A cvermmbense, wlinay possibly be a
sinvilar spews. Avedendiinn avlingae Watson, 1980,
Distribution
IWihe identity is correet, this is the first record oF
corpumbense. from southern Australia. Previously
known only from southern Queensland (Watson
1980; 2002).
Solunderiidae Marshall, |So2
Solundevia fusee (Cray, | 868)
Ceraella fusca Gray, [868: 579, fiz. 2.- Bale, 1684:
44 Yon Lendenteld, 1885: 612. 63 L.- Bragier, 1887;
475, Bule, 888: 745, 748. - Whitelegpe, PXX9: 192.-
Speneer, 1892: &, 20. pls 2, 3, 3a. - Mickson, 1903:
113-115, - Hartlaub, (905: S15,- Vervoort, 1962: 532.
Salandevia fiisea - Niderholm, 18%) 6, - Stechow.
909: 41.- Brigus. LY TX: 33, - Pennycuik. 1959) (59,
- Vervoort, 1962: 532. - Vervoort. L966: 387, - Watson
& Utinomi, 97h 19, pl &. - Watson, 1973: 159, -
Watson, 1982) 86, fig, 4.6d. ph &L- Bouillon en at.
1992; 7.- Watson, [996L 7K
Specimen evmnined.
SAM 111333, depth 10m. coll J.1. Watson, Feb,
2002. material alcuhal preserved,
Remerks
Fan-shaped colony 200 mm high and L000 nm
wide. growing on rock wall, Capitate tentacles
emerging from trabeculaie skeletal meshwork,
Colony abundantly fertile, gonuphores borne on a
short naked pedicel emerging from meshwork:
vonophores spherical, with a small apical pad armed
with nemutucysis: sex of gonophores indeterminate.
Perisare honey brown, hydranths and gonophores
White. Common in sheltered ereyices and caverns ul
St Franeis | and io southern Austrahan oceanic shell
Walters generally (Watson pers. obs,),
Distriburiun
Tempenite and cool temperate Australia.
Leptothecatae
Lalovidae A. Agassiz, [865
Filediim aataretioune (Lbarthiub. 1904)
Reticuleria antaretiod — Vowon, 1930 2160, fig. 17.
- Brigas. 1939: 26, - Watson, 1973; 163.
Filelm anlareticwn ~ Stechow, 1925; 214. -
Naumov & Stepanjants, 1962: 74. - Millard, [97S;
177, fig, S8G-1L, - Stepanjants, 1979: 49. pl & figs 7,
- El Beshbeeshy, 1991; 74, fiz. 16. - Blanco, 1994:
189- Watson, 1996; 78. - Genzano & Zamponi,
1997; 290... Peta Cuntero ef al. 1998: 300.
Speciaen evened
SAM 111437, depth 3m. coll: 1.0. Watson, Feb.
2002, material alcohol preserved.
Remarks
Two small, infertile colonies creeping of lower
stems of agliophentid hydroid. Colour of hydranths,
yellow,
Diseritnaion
Southern Australia and southern hemisphere
genenuly,
Haleciidae Hincks, Sox
Hydrodendran aimatin (Stechow, 1925)
Phylvetutheca armata - Stechow, 19257 204. fg.
(’.- Blackburn, 1938: 323, - Bhickburn, lad) 106, -
Flodwson, 1950: 17. fig, 31. Watson, T9742 166. -
Watson, 1975: 164, fig. 19. - Harris, 1990; 247) lig.
I ).da,
Ophiodissa armata - Totton, 1930: 142. Nig, 2b.
Diplovvuiis arvana ~ Leloup. 1940s 5
Oplrinetes urmeius - Stepanjants, 1979; LLO. ph 2]
ligs. 2A-B,
Tivdradendron avmata - Ralphe 858: 34), Te,
|3d-i, I4h-d.- Rho & Park, }983: 42. pl. 2. figs 4-35,
pl. 3. fins 1-2. - Park, 1990: 77,
SHALLOW WATER TY DROS OF THE ISLES OF SEE RANCTS M5
yelrodendron armani ~ Rees & Vervoort, 1987-
2). - Watson. 1994: 66. - Watson, 1996: 7&.— Watson,
1997) 517,
Specimen examinee
SAM 111334, depth 37 m, dredye, coll: NE.
Watson, Feb, 2002, material wleoho! preserved.
Remarks
A small infertile colony on thallus of the brown
alg Surwessua, The species is easily recognisable
by is wide, Mat hydrorhiza with steeng internal
Nexion joints.
Distribution
Southern Australia.
Ly rodendran australe (Bale, 19)9)
Ophiodes australis Bale, 1919: 336, pl. 16 lg, b. -
Watson, 1973: 165, - Watson, 1982. |: 94, fig, 4.8a-
& pl 8.6, - Ralph, (958: 344, - Rees & Vervoort.
IO87: 2], Stranks, 1993: 6 - Watsen. 1994) 66, -
Watson. 1996: 78. - Watson, 1997-517.
Specimens examined
SAM 111335, depth 9 - 27 mo voll: Jb. Watson.
Feb. 2002, material alcohol preserved.
Remarks
Abundant infertile colonies consisting of many
stems to 40 mm long on sponges and on the ascidian
Aerdncaica moimus iw sheltered caverns ond in the
Open in deeper water, Many strongly fascicled stenry
arise Troma matted hydrorhizu. The spevies is easily
recognised by its greyish-black hydranths, due to
voonanthellue in the base of the tenticles and
distributed throughout the coenosure., A. aestrule
wits the most widely distributed and abundant
species at St Francis Is.
Distribution
Southern Australia.
Hydrodendran daidalin (Watson, 1969)
Scoreshie clieletlar Watson, 1969: 112, figs 1-7, pl
L.- Watson. }979: 234. - Watson, 1982: 92. Hig 4 7]
~ Strunks. 1993: 6,
Uycrodencron dendalune- Rees & Veryoort, [987
22.- Watson 2002: 340. tig. TP.
Specintear examined
SAM 111336, depth 27 m (dredye). colle Jb
Watson. Feb. 2002, material alcohol preserved
Remarks
Infertile colony creeping on the small brown alu
Jonata erent. Hvdradendron daidalgin is. an
ubligate epiphyte of 4 crevera (Watson (969),
Disiribition
South Australia (type locality) and Australian east
coast to southern Queenslund (Watson 2002),
Haleciin delivatiim Coughwey. 1876
Halecinm deticunlin Coughirey. [870a: 26. pl. 3.
figs 4-5,.- Bale, 1924: 235.- Ralph, 1958: 334. figs
He. Tan, F2 a-pe- Pennyenik, 1950 173.- Ralph.
19Q0; 15%. Vervuort, 1972: 27. fies 4-3.- Watson,
1973; 1h6.- Leluup, 1974: 10. Millard, 1975: 145,
fe. ATL = Watson, [975: 15%- Millard, 1978:
193,- Watson, 1979: 234.- Watsan. 1982: 94. fig.
4.8d-f - Mirohino, T9832 5. 1b Rho & Park, L983:
41. pl. 2 igs 1-3.~ Rees & Vervoort, 1987: 25, fig. 5,-
Roca, 1987: 209- Staples & Watson; 218- Gili
Vervoort & Pages, 1989: 78, fig, 7B. Genzano.
1990: 38. figs 2-5.- Park. 1991) 544.- Pela Cantero,
1991: 44 pl. Le Genzano & Zamponi, 1992; 40, fig,
17.- Park, 1992: 286,- Ramil & Vervoori, 1992; 82.
fig. 20a-c,- Blanco, 1994; 186,.- Watson. 1994: 66,-
Hirohito, 1995: 20. tig. Sa-c. pl. tb fig. C- Migouo,
1996; 30, 122, lig. Gd-e- Peta Cantera & Gareia
Carrascosu, 1996, 9, fig, TA-D. - Watson, 1996: 78,-
Watson, (997; 313.- Medel ef ail, L998 3b. Figs 1
Medel & Vervoort, 2000) (2,
Speennens examined
SAM Hi364. depth 10 in and 37 pr (dredge). coll:
J.P, Watson. Feb, 2002. material alcohol preserved.
Remarks
Small colonies, some fertile. on Sareussan
holdfasts, alwal fragments. small sponges. the
ascidiin Hendin mons and on lower stems of
Gvanangiua. Stems short, te 5 mm long.
unfascicled: male gonothecae borne on hydrorhivae
and hydrocaut
Distrifution
Cireumylobal th wopieal and temperate waters
(Watson 1997)
Halecium sp.
Me. TA-D
Specimen examiner!
SAM H1365. depth 27 m (dredge) coll) JEL
Watson, Feb. 2002, materiul alcohol preserved.
Desevipion
A small female colony of a low sealiered stems
24t J.1. WATSON
Fig, |. A-D. Halecium sp. A, lightly fas
ricled stem from colony, B, part of stem internode showing node and primary
hydrophore. C. second hydrophore of linear series showing saucer-shaped hydrotheeal diaphragm and desmocytes dD,
gonotheca, probably immature. Scale bars: A, | mm; B.C, 0.3 mm: D, 0.5 mm,
arising, from a hydrorhiza creeping on a red alga
Tallest stem c. 5 mm high, sparsely branched, lightly
fuscicled by two supplementary tubes extending for
a short distance above base: other stems. shorter.
monosiphonic, unbranched. Stem internodes fairly
long. smooth, expanding distally to hydrophore:
nodes faint to distinct, almost transverse to oblique,
just above level and sloping away from primary
hydrophore, a tumescence im perisare above and
below node. Primary hydrophore adpressed to but
not adnate to internode, some hydrophores ina linear
series of up to five, cach arising from diaphragm of
preceding hydrotheca. Secondary hydrophores
forming basis of branches, given off almost
perpendicularly on a = short internode below
hydrotheca of primary hydrophore. Hlydrotheca
fuirly shallow, expanding a little from diaphragm to
margin; margin circular, not everted. Diaphragm
saucer-shaped in youngest hydrotheeae, invisible in
others, a ring of desmocytes above, a distinct
thickening of hydrothecal wall at junetion of
diaphragm with wall,
SHALLOW WATER TY DROIDS OF PHL ISLES Ob ST PRANCIS ANF
Hydranth robust with 20 - 24 tentacles set with
hirge nemiuloevsts (none discharged).
Female vonothecae ballooneshaped, laterally
flattened, arising without true pedicel Tom within
hydrophores on lower stem: gonotheea with) Iwo
upwurd-liteing bycothecue cuch with a filly formed
hydranth at about two thirds distinee tip bady at
gonotheca, One gonotheea conkuning a row of
sausagesshaped gonophares uround the periphery
vonluning ova and one mitture gonophore containing
uosingle spherical ovuin. Gonothecal aperture
obseured,
Perisare of lower stems and branches moderately
(hick. Thinning on distal imermodess permsare ol
vonativen fury thick, smoath. Colomes white
(preserved Material),
Measurements (hun)
Stem
length of niternade Wa 983
width at ade TH YN
Hydrotheca
Ciumeter at aren 120 |44
diameter ut diaphragm 1 [28
depth. diaplinagin to margin eh)
Gonothecn
height including pedtwel SU) 107s
diameter TMM Aityty
Remarks
Asmalhiitertile columy reported by Watson (1997)
is Halecian nanuin Alder, 1859 from the Abrolhos
Islands, Wester) Austtalia, is tdentieal in
morpholowy and enitical dimensions with the present
specimen, the only differenee being fewer secondary
branches in the Abrolhos specimen, As the
gonuthecn ol the present specimen is quite different
from that ot //. vena, neither the Abrothos material
nor the present specimen can be that species,
Unlortunitely, one of the iwo gonothecae present in
the sample is immature ane (he apertoral neek ol the
other is dumnuged. While probably in undescribed
speeies. accurate diagnosis must await the Mading ol
further andamaged fertile material.
Sertulitriidae Liantourousx, 18 t2
Stereatheca cloneate (Lamouroux, |S 16)
Serinlaria elonsida Lamourous, 1816; [89 pl. 5,
Bile, T8h4: 75, pl 6. figs 7. 8. pl, (9. fue7.- Bale
19} 5: 277. Hodgson. [9502 23. Figs 38.39.
Srereatlieee vloneata — Stechow. 1923; 203, - Bale.
1924) 952, -Steehow, 1925: 231. - Prebileack, 1928:
24. - Blackburn, 1937: 368. ~ Blackhurn, 1948: 320
Blackburn, 1992; 112. - Ralph, 196)> 763. fig. de-k,
— Ralph. (P61; 109 - Rees & Thursfield, 1965; 144,
~— Ralph, 1966: 159.- Shepherd & Watson, 1470: 140.
~ Millard. 1975, 314. fi. LOTD. b= Watsan, 1978:
Loo. - Watson. P8982: 96 fig, 4X pl O81. Staples &
Watson. LOST: 218. - Watson. 1992) 220, - Watson,
1994: 67. ~ Watson, 1996" 78.
Specimens examinee
SAM E1338 depths 1s mand 27 m7 (dredge). coll
Le. Watson, Feb. 2002, material dleabol preserved,
Romuiks
Srereathece vloigara Was also noted at shullower
depths epiphyte on a variety of substrites, namely the
ascidian /erdmanio mous, ilgae und scagrins stents,
In shallower water habitats the stems of the hyelroid
ure quite short. honey brown in colour und tack the
Investnent of red coralline alan often dsseciated with
{his species. Asingle large colony will stems 200 mm
lone was reeevered from the dredaings. The stems of
this colony were grey-brown im colout and infested by
Jiwhile bryozoan, § cfonvare is 4 strong. wiry species
able to withstind considerable wiler movernent,
Dixivibution
Southern Austratin, New Zealand. South Atrica,
Tivreseyphus mewrocythiaves (Lamonwoux, 1824)
China macrocdtharus Lamouroux, (S24: 647.-
Lamatek, P8375 19%.
Cumpaniluriag merging Bale. V&s4: 54.- Bale.
[SSA&2 758.- Burdett. 19072 62.
Lenninedtear Mervillati. -Von Lendenteld | 88S: 404
Tinvoseyphus murginatis.- Bale. YI, O1- Bale,
19135: 245. 25%- Steehows [9242 69.- Sneha. 1925-
217.- Blackburn, 1942: 1172.- Watsunt 973: 169,
Thyroseyphus hele Calder 1983: 16.- Watson, 1902;
I),
Thirescvphus inacroevtharis — Waison. 1994;
150:- Watson: 1996: 78.- Watson, 1997: 517. Watson
20: 37, fie, JOA
Specimen eyaimined
SAM UHl339 depth 27 am (dredge). coll Jb.
Watson, Feb. 2002. material wleohol presery ed.
Remarks
Asmall infertile colony onthe aseidian /fereniunia
OTN.
Distribution
Southern and tropical Austwatia,
Pavasevplnis simples (Lamouroux, 1816)
Luomeded simplex Lamouroux. PX 16: 207,
Thvroxsevphus simplex - Brivas, 1Yl4, 286. 288. ~
Bale. 1915: 245. - Bale, 1924: 236, - Trebileack. 1928:
8. - Blackbur. 1937: 364. - Hodgson, L950; 10, fig. 22.
J4hy J WAPSON
Compamilaria trident - Bartlett, 1907) 42,
Parasevphus sanploe- Rilehte. 1911: 160. figs 1. -
Stechow, 1025: 224. — Totton, 130: 179, fig, 29u-b.
- Blackburo, 193%) 321. - Blackburn, 1942: 112. -
Ralph, 1961: 755, figs Ib.» Rees & Thurstield, 1965:
117, - Millard, 1966: 491. - Watson. 1973; 169, -
Millard, 1975: 270, fig. S9A-B, - Stepanjants, 1979:
OO, pl. LO, fig. 4 - Blanco, 1994: 19%. - Wilson,
1904, O07, = Watson, 1996: 78,
Specimens examined,
SAM 111340, depth 27m, 37 m (dredge), coll: IE,
Wialson, Feb, 2002, material aleohol preserved,
Remarks
Many small colonies on coralline algae und
Sergusvune thalli; some colonies fertile, Gonotheeae
large, ovoid, borne ona short pedicel on lower stem,
some with acrucysts containing three large yelloyy
OVil,
Piyivilnition
Southern Australia, New Zealand. South Atlantic.
South Africa.
Ovnamene puaridentata (Fllis & Solunder, 1786)
Sermdaria quedridentata Whs & Solunder. 1766:
57, pl. 5 fius. a. Go Lamarek, P8102 121. Deteenter
quivdrideniedts - Billard, 1928; 194, 222, lig, 42.-
Trebileock. 1928; 23.- Blackburn, 1938: 320-
Blackburn, 1942: 113.- Vervoort, 1946: 408.-
Pennycunk, 1959) [93.- Ralph, 1961: 790, fig. I3e,-
Mammen, 1965; 49, fig. 83.- Ralph, 1966; 159,-
Vervoort, 196%: 41, 103, fig. 19.- Tirahito, 1969: 20,
fe. I~ Shepherd & Watson, 1970: 140. Millard
& Bouillon, (974: -8.- Millard, 1975: 260, fig. 87G-I.
~ Calder, }983; 11, fie. 3.- Mirohito, 1983; 40.- Calder,
1991, 96, fiz. St.- Calder 1993: 68.- Verveort, 1993.
108.-Culdler, 1995; 343.- Hirohito, 1995; 176. fig. 37u-
c- Migotto, 06: 64, 122. fi. 12fe.- Watson, 1996:
78.- Watson, 1997) 520, fig. SC. — Watson, 2000; 15.
fi. JOC-E- Watson, 2002: 341, fiz. 20-1
Dynamena (Pasa) qucadridentifa — Stechow
Pasa gtadridentate - Stechow, 1922; |48..
Stechow. 1923: 1o6.- Praser, 1948> 239.
Pasvihea (Sertilaria yuadridentate ~ Lamourouy.
IS12: 183.
Pasvrhed quddeicdentita — Lamouroux, IS16. 156,
pl 3 fig, Sa, B= Whitelegee, PX89: 193.- Nutting,
1927: 226- Gravier-Bonnel, 199% S83,
Dynantena vibhose Billard, 1924: 650, fig. 24,
Pasvihea cdibia Vari. 19272 511, plot fig. 3.
Dynamena dihia- Yamada, 1950: 58.
Dyniamena thaukasseriensis Mammen, W965: 44.
fie, A2,
Johmstani
Specimen examined
SAM TIH341, depth 37 a (ulredge), coll Jeb.
Watson, Peb. 2002, material aleohol preserved
Remarks
Infertile colony on Hexuous bryozoan and: sivall
brown alga.
Piste (bution
Circumelobal in tropieal amd wari lemperate
waters, Tropical to temperate Australi
Spuiplectase plus sublichatonus
(Kirchenpauer. 1584)
Sernilarella sibdichotome Kirchenpauer, |Xa4:
46, pl 16, figs 1, ia, Uh dderholm, 1920: 6,
Jiiderholen, 1926) 6.- Totton, T8980: PRR. Veryvoord
19405 344. fig, 3.
Sviaplectovevpliy siheiehatamits.. ~ Steehuw.
1922: 149_- Stechow, 1924: 173.- Ralph, 961: Ads.
fiz, 20a-be Ralph. L966, 159- Vervoort, 1972) 140,
figs: 44b-d. 45.- Watson. 19732 175.- Millard, 1977:
V7. Vig. HID-R- Watson. (982: 99. Ti 4.91, ph
}1.2. + Vlirehite, 19OK3: 53, fig. 25.- Staples &
Watson, PY8T: 218. Vervoort, 94: 241. Blaneo,
1994: 205.- Watson, 994° O67 - Tirohita, 1995:
222. Watson, 1996: 7K.- Pena Cantery & Gatela
Chrraseosa, 1999; 2] 2.
Seriularella — dliveariveta var.
Jtiderholm. 1917; 9.
subelichutonia,-
Specnmens examined
SAM H1342, depth 2L m, col LE Watson, Feb
2002. material alcohol preserved,
Reinavky
Small infertile colonies on vertical surfaces dod on
Ihallus of course-textured red alga, Stems ty 20mm
high, monosiphonic, branched, bul without true main
sium: unustomoses issuing from apertures of
hydrotticeae on branches,
While the present specimen is referred to
Svaplecroseyphus subdichoronims. (he Gx onomig stalls
of the various species comprising the Spmplecrase ypliis
Swaplectoserphus. divericatus group. in
southern Australia is in need of critical review,
Disirihution
Known with certainty from southern Austrthit and
Now Zealand, Other records doubtful.
Svarpleetoseyphus epizvicus Watson, 1974
Suinlectoseyphus epizoicay Watson, 1973: 177
lias 34-33.- Strunks, 1993: 15.- Vervourt, 1995,
234,- Watson, 1994; 67.
SHALLOW WATER TPYDROTDS OF THE ISLES OF ST PRANCIS 2
Speedie examined
SAM 111343, depth 9 1m, col JE. Watson, Feb,
2002, material aleohol preserved.
Remavks
Two small infertile stems on hydrocladiate part of
stem of Caymanefioe in cavern, The species is an
obligate epizooile OF ugliophenid hydrovds.
Distribution
Southern Australia,
Sertitlaretia avrilice Watson, (973
Serilarela aveilla Watson. 1974
25- Vervoort, 1993: 18%- Stranks.
Watson, L996: 78,
172, figs. 24.
1903; 15.-
Speemen exanined
SAM PH134d4. depth 9 in, coll Jn Watsan, beh,
2002, materig! alcohol preserved,
Remenrks
A very small intertile colony on stipe ol the brows
alua Sarwesseun The outwardly bent distal end of the
hydrotheca ts characteristic of the species,
Distrihtition
Southern Australia,
Sernarelly pinata (Lanourousx. 1S 16)
Caheved priate Lamouroux, TS16:
Lamourous 1824: 56,
Thiavia fate Bale, 1882: 26. pl, 13. lig. 2.- Bale.
1884: 120, pl. 7. fig.
Sennilaritla tatd ~ Bale, VOUS: 287-1919 337. pl
16, fig. 5.- Blackburn, 1942: 1)5,
Seridaretla pimitta - Cordon er ul (998: 413,
fig. A.
Spechmen examined
SAM IL1371. depth Ton calk JE. Watson, Feb,
2002. material alcohol preserved,
Remarks
A tertile epilithic colony ina sheltered cavern,
Colony gomprising several heavily fiseieled.
pinifately brinched stems to 120 fom bigh, growing
(rom a common base, This deep water species olen
wiuins larwe size: (he present record from shallow
water is probably due to the sheltered habitat, 9.
Pinhatd is vecounisuble by ats orange colour. large
recumbent! barrel-shaped wonotheene und rather
brittle. easily shed hydtoclidia. The species was
originally deseribed as a bryozoun Cahered pimretts
from apparently dried material by Liamourous
(1816): its identity as 4 hydroid was established by
rediscovery of the lost type by Gordon ef af, ({998),
Disirituition
Southern Australia.
Sernilavella robusta Cougbtrey, 1876
Sertufaretla rohusta Coughtrey, [&76b: 300.
Stechow, 1913: I4.- Bale, 1924; 240,- Jiiderholm,
1926; 4. fig. 3.- Trebileack, (928) 16. pl. 6, fips 3-
3c. Totton, 1930: 105.- Blackburn, 1937; 171. fig.
|.- Blackburn, 1938; 320.- Bhickburn, 1942; 115,-
Hodgson, 1950; 33, lig. S8.- Pennycuik, 1959; 195,
pl. @. fig. 3.- Ralph, 1961: 824. fig. 22a-c.- Ralph.
1961: 10%- Ralph, 1961: 236.- Ralph, 1966: 159.
Shepherd & Watson, 1970) L40.- Vervoort, [972:
129, figs 40, 4la- Watson, 1973; 171, fig. 2he
Watson, 1975: 16, figs 23-24.- Vervoort & Vasseur.
LO77. 40, fivs P8-22.- Watson, 1982: 100, fi. 410d.
pl. 14. - Hirohita, 1983: 46, fig. 19 - Park, 1992:
292,- Vervoorl, 1993; 192.- Watson. 1994: 67.-
Hirohito, 1995: 200. fiz. @S5e, f- Watson. 1996: 78.-
Watson & Melnnes, 1999; 111,
Serriarclla robusta va, yuasiplane Trebileack,
I928: TS, pl 6, Tes 4. Aa,
Sermlarelar mverocona Vou Lendenteld. US8s:
416, pl. 7, igs 1-3.
Sertularella angulosa Bale, |S94. 102. pl 4. fie.
6 Strinks, 1993, 6) 14.
Specimens examined
SAM [11345 depth, 16 27m. coll: JE, Watson,
Feb. 2002, maternal alcohol preserved.
Remarks
Small colonies usually consisting GF u few short,
infertile stenis on the ascidian Herd nine.
bryozouns and thalli of Sarevassain,
Distribution
New Zealand, South Pacitie, New Zealand, Japan,
Very common in seuthern Australi,
ophivbedia atinind (hompson, 1879)
Sermlaria minina~ Thompson, 1879: LO4, pl v7.
fiz. 3- Whitelegye, 1889 41.- Bartlett, 1907: 42. -
Ritchic, 9T 1) S45, - Bale, 1915; 269.- Briges, |OTS:
34, 37.- Bale, 1924; 248:- Trebileock. }928; 23, pi. 7.
fies, 5. Sa, - Leloup, 1932: 160, - Blackburn, 1938;
31% - Blackburn, 1942: L14.- Hodyson. 1950: 23.
hus. 41-42.- Pennyeuik, bYS0: 197,
Amphishetia mania - Stechow, 1925: 230, fig. K.-
Millard, 195: [83- Ralph, }96); 774, fig, Sa-h.-
Ralph, 1961; 236- Ralph. 1966; 159- Shepherd &
Walson. 1970: 140.- Watson. 19732 179.- Millard &
250 JE. WATSON
Bouillon, 1974: 7.- Millard, 1975; 250, lig. 82TI-K.-
Watson, 1982: 98, fi. 4.94, by pl. 93. - Staples &
Watson, 1987; 218.- Harris, 1990; 229) fig, 11.4b-d.-
Watson, 199: 67,- Watson, 1996; 78.- Watson &
Melnnes, L999) [1 1.
Newmotler minis
1923; 202,
Stechow, 1921» 259. - Stechow,
Specineny examined
SAM 111346. depths 21 mand 37 m (dredge), coll:
Jah. Watson, Feb. 2002. material alcohol preserved.
Remarks
Infertile colonies on thalli of Sargassum from
shallow water and from dredged sample.
Disiribution
Very common in southern Australia, Circumglobal
in temperate waters,.
Amphishetia maplestanei (Bile. 1834)
Sertularia maplestonce? Bale, 1884. 70, plod, Tig. 4,
pl. 19. fig, 2.- Bartlett, 1907: 42.- Bale, 19}4a: 16.-
Bale, 1915: 276,- Jiiderholm, 1917: 17. pl. 2. figs 4-5.-
Blackburn, 1942: 113.- Hodgson, 1950: 28, fig. 49.
Amphishetia meaplestane’ = Stechow, 1921: 25%.-
Stechow, 1923; 199- Shepherd & Watson, 1970: 140.-
Watson, 1973: 178.- Millard. 1975, 249. hig. S2A-E.
Specimens examined
SAM H1t348, depth 9 27 my, coll: Jb, Watson,
Feb. 2002, material aleohol preserved,
Remarks
Fertile colonics on sponges on vertical walls in
veavern, on thallt of coarse red alga and on drifted
dead stems of the seagrass Amphiholis anterctice.
Stems pinnate, to 125 mm high, reddish in colour,
Distributian
Southern Australia: South Atlantic, South Africa,
Madagascar.
Amphishetia alseni Watson, 1973
Aniphishetia olseni Watson, 1973: 179, figs 34-37.-
Watson, 1979: 234.- Stranks, 1993: 17.- Watson,
1996: 78.
Specimen examined
SAM 111347, depth [8 m, coll: LE. Watson, Feb.
2002, material alcohol preserved.
Remiarks.
Colony on tough-textured sponge on yertical
surface and on the aseidian //erdmania ntamus.
Sterns to S mm high, sparsely branebed: one stent
fertile,
Disivihation
Southern Australia,
Syntheendac Marktanner- Pumeretscher, [S80
Hincksellu cvlinedvica (Bale, 1888)
Sertularella evlindrica Bale US88:765. pl. 16, fig.
Tm Ritchie, L911: 847,- Stechow, 1923; [50.- Fraser,
194d: 234. pl As, fin. 216.
Hinchsella evlindrice - Blackburn, 1937: 174, lig.
2- Pennycuik, 1959: L9S.- Vervoort, 1959: 245, figs.
18, 19a. - Veryoort, 1968: LOL. Millard. 1975; 232,
~ Millard, 1978: 194.- Watson, 1979: 234.- Calder,
}993- 68.- Vervoort, 1993; 193.- Watson & Meliines,
1999: TOK, lig. 40
Specimen ovanined
SAM 111349 depth 9 an. coll AE. Watson, heb.
2002, material alcohol preserved,
Remarks
Several sparse, small mferle stems on stenr of
aglaopheniid hydroid.
Distribution
Subuopical and temperate Australian cast and
southern coasts. Indonesia. Japan, Canbbeun Sea.
South Africa.
Kirchenpaueriidae Millard, 1962
Pycnotheea Stechow, 1919
Pyenotheca producta (Bale, 1482)
Plannilaria producta Bale, 1882: 39. pls, fig, 3.-
Bale, 1884: 133, pl. 10. fig. 4.- Stranks, 1993: 13,
Azvgoplon prodicta - Whitelegge. 1889: 193,
Pyenotheca pradtieta - Stechow, 1919: It1.-
Poennycuik, 1959: 156.- Shepherd & Watson, 1970:
140,- Watson, 1973: 182.- Watson, [992: 220,-
Wilson, 1994; 67.- Watson, 19965 79- Watson,
1997; 527,
Specimen examined
SAM EH 1476, depth 16m, SAM 111377, depth 20
m, coll: LE. Watson, Feb, 2002. material aleohol
preserved.
Remarks
A large female colony (SAM H1376) on leaves of
the seagrass Posidenia angustifolia, Stems to 8 nm
high, given off regularly from a broad, Mattened
hydrorhiza. Median inferior — nematoiheea
monothalamic with small, upturned terminal
rostum. Gonothecae large. one or two at base of
SHALLOW WATER LEY DROS OF THE ISELS Db STP RANCTS 351
stu. underside adherent to substrite, gonophore
CON many ov. Colour al eotony honey
brown, miy be due to chetiiieal changes in
preservative,
“ sparse infertile colony (SAM LfL377) on sofi-
textured red alga, Stems to 10 mm high, given off
irregularly front a tunnel-shaped hydrorhizi, Median
inferior nematotheca monothalamie but lacking
ternal rostrum,
The presence ov absence of the terminal rostrun ol
the median inferior nemulotheca muy be a response
fo environmental conditions or an
Incipient speciation. Due to morphological variation
over their geographic tabee and habitat. the
fuxonomic stilus of the three nominal species of
Pyonatheca (Po inivabilis, Po product bP. hixeprate)
requires elucidation,
Distihutton
Southern Australia,
Plumulariidae , Aguassie, }862
Plamularia filicaulis Kirchenpauer, 1876
Hanadleria filicavliy Kirehenpauer, (S76; 47, pl.
5, fi, 6.- Bartlett, 1907) 42. - Mulder & [rebileock,
1909) 34. - Mulder & Trebilcack, 1970: 80, pl 10,
figs Ga. Gb, pl. tl, figs 3-30. - Bale, 1918: 341. -
Leloup, 1932: L60. - Hodgson, 1950) 42, fig. 72. -
Shepherd & Watson, 1970: 140, - Millard &
Bouillon, 1974) 9. - Millard, 1975, 390, fiz. 1231
L.. = Watson, 1975; 170, = Watson, P982: 107, fix
4.114, j--Rho & Park. 1986: 10, fig. Sac, pl 1. fie.
e. - Antsulewieh, 1987; 11S. fig. 33. ~ Staples &
Watson, LOST: JIS, - Park, 1290: K4, - Park, 1992-
295, - Jlirohilo, T9958; 273, fi. Y3a-d.- Watson,
Poh: 7 — Watson, 1997: 533, — Gravier-Bonnet.
L900: WD.
Hereroplor filicaiile - Stechow, 1923; 232,
Plamutavia filicadis yar. jnetivixa ~ Bartle, 1907:
42—Watson, 1902: 22,
Specimen exaniined
SAM 111354, depth 37 m (dredge), colle J.P
Watson, Feb. 2002, pnaterial deohol preseryed.
Romarks
Acsmall infertile colony on thallus ol Serene
Plumose and simple stems given off trom
hydrorhiva, Colour white.
Distrifution
Soulhern Australia, South Africa, Chile.
Madagascar. Japan,
Monotheca Nutting, 1900
Monotheou ompresse (Bale, 1882)
indieatur af
Phiaiilaria vompresva Bale, 1882: 12. pl 1S. fig
5. Galle, PSR) (42, ph FQ. figs 8 P00 pl 200 figs 30,
40.- Whilelegue, TRA9 1Y3.- Bartlet [M07 42 -
Mulder & ‘Trebileoek, LY lo. 77 pl i has 3) Sa
Blackburn, 1938: 316. ~ Blackbyin 14a: Los.
Suriks, [9035 9,
Monutheve compressa - Stechow. (97h, 230.
Stechow, L925: 243, Wartsan, 199A: 7S.
Specimen exaniicd
SAM TH A74. depth PP - PX neal: dob Watson.
Feb. 2002, material aleohul preserved.
Remarks
Large female colonics on leaves of dhe seagrass
Posidonio angustifolia. Wydroriza broad and flat
running parallel to venation of seuzriss leaves.
Stems la S mov hivh, older stems brown in colour:
younger stems white, Gonotheeae much hirger dha
hydrotheeae, usually borne singly on pedicel near
base of stem, held out perpendicular to stem andl
almost recumbent lo subsira(e: aperture large. fling
upwards. plane of apernire paratlel to gonethecal
UNIS,
Disiribiution
Southern Australia, The record Fran india (Leloup,
1932) a8 doubrlul.
Monathece ausiralis (karchenpaugn, (876)
Ploondacia ubtiqua vat. aestetis Kirehenpauer,
I876: 49, plod, tig. 10.
Plooidaria australis ~ Barllett, 907: 42, - Mulder
& Trebileock. 1916: 77, ph 10. tes 1-1b. -Bedot.
192}: 26,- Stechow, 1921) 260.- Blackbur, 1438;
310.- Blackburn, 1942: LOS. Watson, 1073; 189.
Stiples & Watson, 1987; 2TK.- Watson, 1992; 220.
Monothecellu yusivalis - Stechow, 1923: 13,
Specimens examined
SAM 11375, depth (7 in, coll: Lb, Watson, Feb,
2002, Material alcoho! preserved.
Remarks
Abundant female colonies on the seagrass
Aniphibotiy codarcrica, Wydrorhiza broad, swapelike,
tunning up the seagrass leaves: stems to 4 mi high,
viven off regularly from hydrorhiza, Gonotheeue
uch larger than hydrotheea, borne singly or in pairs
nei base of stem: pedicel perpendicular to stem with
vonotheca almost recumbent (a substrate: body
clongate, with upward facing orice on long neck.
Colour of stems white
In infertile material, Morothece wusiratis is
difficult to distinguish trom: Merodiece compressa.
the only rehuble character being the somewhat more
252 J.T. WATSON
rounded abeauline wall of the hydrotheea in the
former species. compared with a more sinuate
outline in the later species. Separating the two is
simpler in fertile material although the gonothecae
are of the same general shape amd recumbent habit,
thal of Mo australiy is more slender than that of V7
CONTTPLES SEL,
Ihis noteworthy that these two yery similar species
are both seayriss epiphytes, occurring m two closely
udjicent habitats, However the possibility that the
difference in sive of the gonothecie ts a sexual
diflerence tra single species is not tenable, as in this
instabee colonies from both habitats are lemale.
Nevertheless. Ax compresses aid ML cttstrefes
probably represent active sympatric specittion in
iwo Closely related fabituts,
Dixiribution
Souther Australia. A record from India (Leloup,
1932) is doubtful.
Movotheca flexuosa (Bale, 1894)
Minnlaria flexttosa Bale, (894. 115, pl 5. figs 6-
10, = Bartlett L907. 42. Mulder & Trebileock.
1910) 78. Blackburn, 1938: 3415. - Shepherd &
Watson, 1970; 140. - Watson, 19737 187,
Plamulavia (Mornotheca) flexuosa - Stechow,
1925; 246,
Monhotheca flexuosa - Stechaw, 1921) 260.
Hivohito, 1974: 37, fig. 17. - Watson. 1996) 78,
Watson, 2000: 48, fig. 37A-B.
Speeimien chamined
SAM 111350. depth 27 m (dredge), eoll) Ib,
Watson, Feb. 2002, material alcohol preserved.
Remarks
An intertile colony with steis to 3 fim high on the
red alua Mrefrodea carnosa, The habit ol Monarhecc
Hexnose when associated with this alee is utlusual as
the hydroid stolons penetrate the outer medullit of the
alga, giving rise to external stems (Watson 1973),
Distribution
‘Tropical and temperate Austealia: Japan,
Monotheca abligna Gohnston, 1847)
Plumulavia ebliqua Johnston, 1847) 106. pl. 28,
fie. 1. - Bartlett, }907: 43. - Maderholm, 1919: 22, pl,
S. fig. 6. - Stechow, M19) 113.- Blackburn, 1938:
31S. - Blackburn, 1942: 108, - Hloduson, P9S0: 39,
lip, O8.- Pennycuik, 1959: 180, - Watson, 1973; 189.
- Millard, 1975: 396, lig 125A-B. - Watson. 1974:
234. - Boero & Wresi, 1986: 145. - Roea, 19872 181,
~ Gili, Vervoort & Pages, LO890K9, Hig. PTA. Park.
1999; 294, - Cornelius, 995: 142. fig, 33, - Wilson
& Melnnes, (099: TE,
Monotheca abliqua ~Stechow, 1923; 17. - Leluup.
1932; 160, - Yamada, 1959; 78.- Rho & Park, 1986:
99, = Ryland & Gibbons, }90}: S38. tip, Y - Ul
Beshbeeshy, 1995; 404. - Medel & Loper-Gonailes,
1996: 202, ~ Watson, 1996: 78, - Watson, 1997: 529,
Specimens exenitined
SAM 11351, depth 37 m (dredge). coll IE.
Watson, beb, 2002. material sleohol preserved.
Remarks
Abundant infertile colonies on thallus of
Sareassi, Stems (oS mm high, arising at reguliae
intervals from a (Mate strap-like hydrorhian Colour,
white.
Distribution
Subtropical and lemperate Australias
Atlantic. Pacitie. Japan. Mediterranean Sea,
North
Monothece spinilosa (Bale, (882)
Mamilaria spinulasa Bole. 1882: 42, pl 15, ly.
Kh. Bale, F884: 139, pl. 12, figs PL, 12.- Bale, S88:
783,- Bartlett, 1907: 43. - Brigys, MYIS. 34, 43. -
Blackbur, 1937,, 36%, - Blackburn, 1942: 116. -
Pennyeuik. 1959; 180. - Ralph, M961: 109, - Millard,
1962; 301. - Millard, 1966: 494. - Watson, 1973;
ISK, fas 34, 55. - Millard, 1975: 401, fig. 125b-J. -
Millard, 1978; 196,
Plunadaria (Menothecad spintiloya ~ Stechow,
1935: 246. - Stwehow, 1921: 260, - Stechow. 1923;
17. - Leloup. 1932: 160, - Watson, L896: 7X,
Watson, 1997; 529, - Watson & Melnnes. 1999: 111
Specimens exentned
SAM 111352, depth 18 - 27 m, colh JE. Watson,
Peb 2002, material aleohol preserved,
Remerks
Sparse infertile colony on the ascidian /ferdmteic
IHOHAIS,
Disribunen
Southern Australia; South Africa, South Athuitie,
New Zealand, Japan,
Hoalopterididue Millard, 1962
Amennella campanutaformnis
(Mulder & Trebileoek, }909)
Aivennella — campanulaformis Mulder &
lrebilcock. L909: 31. pl. figs 6, 9, 10. - Mulder &
Trebilvook, 1Y1t: 115, - Bedol, 1917; 125.- Watson.
1973; TS82. figs 43. 44.- Watson, 1975: 170.-
SHALLOW WATER THYDROLDS OF THE ISLES OF STP RANCTS 233
Sehuchert, (097: 24. fiz. 7. - Watson, 1994: 47 -
Walson. 1996: 78.- Ansin Agis ef al. 20015 135. fies
41-62,
Specomen examined
SAM H1I366, depih 5 m. coll JE, Watson, Feb.
2002. material aleohol preserved.
Remurks
One fertile colony on red alga in cavern, Stems to
2mm high, male and female yonuothecae on same
stem. Colour, yellowish green,
Distribution
Souther Austaiia: Mediterranean Sea. Spain.
Indian Ocean, Canary Islunds.
Aniennella secundaria (Gmelin, 1791)
Sernmieria secundaria Gmelin, 1791: 3856.
tuleaphenia secundaria, — Lamouroux, L&24: 19
Phomularia secundaria - Blackburn, 1938; 316.
Aniennella secundaria, — Pennyeuik, 1959: | 76,
Watson, 1973: 183. Millard, 1975: 332. - Ryland &
Gibbons, 1991; 525. - Ramil & Vervoort, 1992; 143,
- Medel & Vervoort, 1995; 35, Watson, 1990: 78, -
Schuehert, 1997; 14. Watson, 1Y97: 522, - Watson.
2000: 45,
Witenella secundarla,
AT3,
Stechow & Miiller, 1023:
Specimens exainited
SAM T1353, depths 9 27 m, colk JE. Watson,
Neb, 2002, material alcohol preserved.
Remarks
Small colotiies, stems tw 3 mm high, on
Sargassiin, onstem ol ughiophentid hydro and on
the auserdinn erdinertio mania,
Disivibution
Southern to tropical Australian; cosmopolitan. warn
temperate lo tropical seas.
Gattve bated (Bartlett. 1907)
Phamulavia bales Bartlett, 1907; 65, fig. 1. Mulder
& Trebileoek, 1909; 29) pl 1 fins 1-3.- Stranks.
1993: 8,- Briggs. 1918: 34, 41, ples, figs 8-10- Bale,
1919: 344, pl. 17, lig, 6.- Blackburn, 1937; 368,
Gettva baled Watson 1973: 186.- Watson, |996:
78.- Schuchert, 1997: 145. fig. 50.- Gravier-Bonnet.
1998: 123,
Specimens exemince
SAM 1H1367. depths 10 - 27m, coll Ib, Watson,
Feb, 2002, material alcohol preserved,
Remarks
Several small colonies on thal) of brown and red
algae. Stems to 7 mm Ineh. one stem tertile, A rare
species.
Distribution
Southern Australia,
Aghiwphentidae Lb. Ageassiz, 1862
Hulaophenia curinifera Bale, (914
glaaphenia carinifera Bale, \Ql4Aa: VSI. pl. 3k,
figs |, 2- Bale, 1915: 318- Redot, 192): 341.
Blackburn, (942) | 10.- Stranks, 19947 9,
Specimen examined
SAM 111355. depth TS thy coll JE) Watson, Peb-
2002, material alcohol presery ed.
Remarks
A large infertile colony of many stems on vertical
rock fee, Stems to TSO mm high, pluinose, some
subdichotomously branched near base, liscieled und
ahydrochidiate proxtmally, polysiphonte tubes
becoming fewer up stem; distal stem region
monophonic, bydrockidia long. Colour af colory
golden brown.
Distribution
Great Australian Bight.
Agtophenia divaricant(Busk. 1852)
Pluniularia divaricuta Busk, (852: 398.
Agliophenia divaricata - Whitelegee, 1889: 194,-
Bale, [S84 162. pl. 1S. fig. 7. pl. €7. fig. 7.-Bartlett,
1907; 43- Ritchie, LOT): 866. - Bale, 1915: 309,-
Briges, MS: 315.- Hiderholim. 1917: 18. pl. 2 fig.
T- Briges. MOIR: 34, 44.- Nutting, 1927: 232.
Blackburn, 1937; 368.- Bluckburn, 1942: 110.
Vervoort, [94> 341— Hodgsun, 1950: 61, fig. 92-
Ralph, 1966; 159.- Staples & Watson, 1YS7; 21%.
Witson, 1994; 67,
Aglaophenia divearicule vac divaricata - Watson,
1982: 1LO, fig. 4. 13a, b,
Thecocarpus divaricams — Watson, 1973: 194.
Speeches (xe iied
SAM H1357, depths 27 ni and 37 m (dredge), coll!
J, Watson, Feb, 2002. mitterial aleohol preserved.
Remarks
Af infertile colony of muny stems to 150 mn high
erowing from a common base on stipe of Sargesyany
Stems lightly faseicled and unbranched proximally.
branching of several orders distally, forming a loose
canopy of pinnate branches. The dark brownish-
JA Job
bhick colour 1s characteristic of the nominal variety
domdccoyi The taxonomic status of the three
nominal variches of sleleephenia divaricata (sl.
maceeyt, AL hrigest, Al evstifera) whieh are
distinguishable only oon minor niieroscopie
characters are nm need of critical review.
Watson (1973) was mistaken in referring her
specimens from Pearson |. to Thecocarpis. This. is
the commonest agalopheniid hydroid in southern
Australia.
Distribution
Southern Austral and Lord Howe |. A record
fram the Philippines is doubtful.
Gyan ascidiaides (Bale, L&&2)
Aealophenia uscidinides Bale, (S82: 20. pl. 13.
fig. 5.
Molicarnaric aseidinides, — Bartlett, 1907; 43-
Jéderholm, 1917: 21. pl. 2. fig. 13.- Briggs. 1918: 34,
43. pl. 6, tig. 3.- Bedot, 1921; 346.- Stechow. 1923:
236.- Shepherd & Watson, 1970: 140.- Watson,
1994: 67,
Specimen exenninedd
SAM H1356, depth 9 m, coll LE, Watson, Feb,
2002, inaternal aleohol preserved,
Remarks
One small miertile stem and two fertile stem
lragiments detached from substrate. Stems pinnate.
monosiphonic, to 40 ni high. Gionotheeae um-
shaped, Colour deep reddish-brown.
Certain authors (e.g. Slechow 1912) synonymised
Gr aseidioides in G. archatim (Lamouroux, (816)
but Bale (1913) considered the two species
separate. Since the present specimen more
resembles Bales concept of GG) aschfiatedes,
especially im hiaving two subopposite hydrochidia
per internode, the two species are considered
separatc,
Distribution
Southern Australie
Guinnaniciin proliferum (Bale, 1882)
Halicurnaria prolifera Bale. PS82. 34, pl be fie.
S.- Bale. 1884) E83, pl. I4. fig. 1, pl lo. fig. LO. -
Whitelegee. JA89: 193- Bartlett, L907: 43.- Ritchie,
LOTL: S38, pl SS, fes 2-3.- Brigus. |YT8: 34. 44 -
Bedat, 1921: 348 - Watson 1973: 197,
Gynnaneiin profiferum. ~ Stechow, }923, 237.-
Wilson, 1982: 114. fie. 13h, - Watson, 1994; 67
Guanaielin (laliaeia) pratifera, - Stevhow.
}921. 233,
WATSON
Specinens examined
SAM H1358, depths 9 mand 27 m (dredge). coll:
J. Watson, Feb. 2002 maternal aleohol preserved,
Remarks
Fertile and infertile colonies epilithie on vertical
rock faces and in caverns. Some colonies comprising
simple pinnate stems, others spursely branched in
one plane. Stems monosiphonic, single stems to 120
nm high. branched colonies a little shorter. Colour
variable fron pale honey yellow to brown,
Distriiution
Southern Australia.
Gyinengiior humile (Bale. 1884)
Hahcornaria humilis Bale. U884: 182. pl 1a. tig.
Spl. 16, fe. 6. - Jiiderholm. 1917; 21, pl. 2) Itz. 12.
- Bedot, 1921: 348. - Stranks, 1993: 11,
Haticornavic humilis (2) - Bartlet, 1907: 43.
Cvnenmiun fronile - Stechaw, 1923: 237,
Civmneneiun (Halaria) humilis - Stechow, 1921;
233.
Specimens examined
SAM H1372. depth 21 m. coll! Jb. Watson, Feb.
2002, miterial alcohol preserved,
Remarks
Infertile colony on rock wall comprising a cluster
of many stems to 90 mm high, Several stems lightly
fuseicled near base, polysiphanie tubes running tor ia
short distance up stem. Same stems branched
subdicholomously near base, all slems pinnate,
hydrochidia rather short. Stems pale brown,
hyvdrocladia fawn.
lo microscopical detail Gremensium funrile
closely resembles Gaineizinin proafiferum (Bale,
I882). [can be distinguished from that species by
the smaller lateral nematotheeae with more
forwardly pointing ortfice and the long. rather
slender, Riwnecoloured hydroclidia. Bale (E884)
described a small specimen of GF Iimuiile
approximately 10min high, epizaic on several larger
spevtes ol Chammcaneiin considering its habil “very
similar to the parasitic form ol CG, fongireadeis’, Cr,
langivosteiy has two habits a small epizeic form
living on other species of Crmuneiinr and hirer.
Independent colomes (Watson. pers. Obs HO.
himile is found to have similar habit, the nwo species
may reed to be iinited
Disirifution
Southern Australia
Cvnmangiit superhe (Bale, 1882)
SHALLOW WATER UY DROIDS OF TH ISLES Ob ST EBANCIS 255
Agelaphenia superba Bale, 1X82: 31, pl 13. fig.
Halicornaria superba = Bale, TS84: 175. pl. to.
fiz. |, pl Lo, fy, 4.- Bartlet, 1907: 43.- Bale, 1913:
145.- Bale. (915: 324. - Briggs. 1915: 312. - Bedot.
19212 348.- Hodgson, 1950: 53, fig, 85.
Gymnungina superbum - Stechow, 1923: 237,
Bluckburn, 1942; |09.- Watson, 1982: [12 - fig. 4.12).
pl. 12.5. — Watson, 1994: 67.
Speciinens exantined,
SAM 111359, depth TS m_ coll: EB, Watson, Feb.
2002. maternal alcohol preserved.
Remarks
A colony of many stems arising trom a commen
hydrorhiza on rock wall, Colony mflertile, stems
gracclully plumose, lax, monosiphonic, unbranched,
up to 120 rin high, Hydrocaulus brown, hydrockidii
pale yellowish-green. The species is characterised by
its praceful habit. pale colour and tendency to excude
mucus upon collection (Watson, pers. obs.),
Disirilnition
Southern Australia.
Campanulartidag, Johnston, 1837
Silieuluria undulata (Mulder & Tretileock. 1974)
Mulder & Trehileock, 1914: 10, pl. 2, figs 5-7 -
Bale, 19 l4b: 89- Bale, 1919: 327,- Bhickburn, 1938:
324.- Blackburn, 1942; LO5.- Ralph. 1956: 293.-
Blanco, 1967; 221.- Watson, }002; 220, 221.-
Watson, 1904: 154, fig, 3A-F- Watson, 1996: 78.
Specimens examined
SAM HI370, depth (7 m. call Jb. Watson. Feb.
2002, material alcohol preserved,
Remarks
Infertile colonies on Jeayes of the seagrass
Anphiholis antarctice. 8. tnedilata is i common
epiphyte of oh crnaetice
Dusnibition
Southern Australia,
Onthopyats caticalata WMiieks. (853)
Cumponadlaria calicniatea Wineks, WAS32 178, pl 3,
Ned. Tineks. PSO8: lod, pl al, fig, 2, - Whitelegee.
IRSO: | 95,- Pica 1952; S46,
Orthopyyis caticulata = Bale, 191 4b: 74, pl. 11. fig.
Le pl 12. iv. 1 Stechow, 1923: 7- Bole. 1924: 232-
Bale, 1934: 273.~ Hodgson, 1950: 7. figs 14-146,-
Ralph. (957) 838, fig, 6u-f- Pennyeuk, 1959: 172.-
Riedl, 1959: 633.- Yamada, 1965: 361,- Ralph, 1966:
158.- Blaneo, 1967) 262.- Shepherd & Watson, 1970,
94: |40.- Watson, 1975, 15%. -Watson, 1994: 67.
Watson & Melunes. 1999; [11,
Compomiing calvoulate var maecresona Vow
Lendenteld, | 885; 922.
Orthop xis ntuacrogona Bale, Yt4b: 77, pls 11, 12,
lig, 2,
Bueopelle caliculata - Praser, 191); 36.- Fraser,
1944: 146, pl. 26 fig, 119.- Hirohita, (969: 6. fig. 6,
Campanularia caticulata var mecrogone ~ Bartlett,
1907: 42,- Hilgendorl, 19 ls 540,
Specinrens exeninee
SAM H1360, depth 27 m. coll. JE, Watson, Feb.
2002, material alcohol preserved.
Remerhs
A viehly fertile colony on thallus of Sergey
growing ona cock lee, Hyelrorhiza reptant on algal
frond: stolons and hyedrotheeal pedicels smooth.
Cionothecae recumbent 10 substrate: gonophores
cumedusoid in struetire
Distvihittion
Southern Australia, New Zealand,
Orthopyxiy crenata (artaub, 01)
Evcapella crenaia Varthiub, 901) 364, pl 22, Mes
27-31.33-35.- Hirohito, 196% 7, fig, 7,
Orthopyciy crenata ~ Bale. 124 232, lig. A-
Stechow, 1925: 210,- Trebileock. 1928; 3.- Bale.
1934; 273.- Picard, 1958: 191- Pennycuik, 1959:
172.~ Ralph, 1961: 18%- Leloup, L974: 17. fig, 15.
Cormehus. M82; 58. fig. 5.- Gil ef af, 1989; 23,-
Cornelius. 1992: 257.- Bocro & Bouillon, 1993:
265.- Pena Cantero, 1995; 479, pl. O1, fig. c.- Medel
& Lopey-Cionvdley, 1996: 207- Migotto, L996:
123.- Watson, 1990; 76° Ramil & Ansin Ais, 1998:
201, - Medel & Vervoort, 2000: 58, fig. |3a,
Orthopuris crenata (cremate - Ralph, L987: 838,
lig. OSp-v,
Comparniaria crenata ~ Preard. 1951: 261
Millard & Bouillon, 1973; 47. fig. OB P- Millard,
)975; 204, fie. GBA-b- Boero, 1981. 182,- Tlirohito.
1995: 53, lip. ek,
Specimen examined
SAM L361, depth 27 m, call: LIL Watson. Feb,
2002, materin| alcohol preserved,
Remarks
A sparingly fertile colony with immature
gonotheeae on thallus of ved coealline alge on rock
will, Stolons tubulin. hydrotheede large and squarish
im shape with weitkly crenulate imurgin; pedicels
completely corrugated.
The pames Ortlrapyads Chor cunipanulariad
25h JL WATSON
hydroids with a compressed hydrotheea) and
Camponifaria (hose with radially synmetrien|
liydrotheea) are ofien loosely applied to these
venerd, leading ta rue systematic contusion.
Sehuchert (2001) rightly poimed ont that
Cumpannlaria crenata Allpan, i876 with a
campanulate hydrotheca is a diflerent species from
Onthopyxis crenata (thartaub, L901).
Hivivibution
Cosmopolitan.
Cumparilaria genssicd Stechow, L923
Compantituria ceuussica Stechow, 1923; 102, fs.
K.- Leloup, 1960; 232, lig. 5= Watson, 1973: 162.
fiz, 3.- Watson, 1994) 67,
Specimen examined
SAM H1362. depth 9 m. colle Js. Watson, Feb.
2002. muterial aleohol preserved.
Remarks
A sparingly fertile colony of several stems on the
ascidian //erdinania monnis. Wydrothiecal pedicels tu
4 win high.
Disivihuion
Southern Australia Antarctica and Kerguelen f,
Cumpaiuiarig HUVISehyts Sp). Nay.
Vig, 2A-1
Companularia sracnlandive Levinson, 1893) -
Thirahitu, (995; 54, fie. Tah,
Specimens exenineet
SAM [1368, holotype, fertile colony on lowe
stem Of Oyameneicon sp, depth 27 mn (dredge), coll:
JG, Watson. Feb, 2002, material alcool preserved.
MVE, paratype, fertile colony on lest of the
ascidian Herdinaniu mous, depth Po ni. colle Jae,
Watson, Feb, 1002. all material aleohol preserved.
Deveripnon (af haloipe and parawipe)
Colonies stolonal, stolons tubular, reticulutiny,
wiving Off hydrotheeae and gonothecae at irregular
intervals, Lydrotheeal pedicels long. eylmdreal,
gender, of same diameter us hydrorhizal stolons,
perisare smooth: base of pedicel with several
indistinel unuilations, pedicels thereafter mostly
smooth but some faintly unmulated tn distal region:
some with reseneration nodes. Pedicel ending ini
Nullened shoulder suppomtiog a byn-shaped spherule
below hydrotheea, Hydrothcoa nitially syounetrical,
narrowly cammpunulate, with «narrow basal chamber
and diaphragm marked by a distinet annular
thickening of walk hydrothees therealler widening
gradually to margin. Margin with & = 12 rounded
cusps, embaynicnts between deep, ol sume size and
shape as cusps. Iydranth with 16 - 20 tentacles.
Cionotheeae anising singly from hydrorhiza on a
short, stout, deeply corrugated pedicel of up to lout
sexments, Gonotheea ovoid When young, widening
distally near maturity, body smooth, distal end a low
operculu dome. aperture circular, small. sometimes
slightly displaced to one side; a small submarginal
collar of perisare, Gonophore large, occupying much
of vonotheca; no internal structures visible but sex
probably male, Perisare moderately thick
throughout, thinning a Tittle towards lrydrotheeal
mare, Hydrocaulas and gonothecu colourless,
hydrorhiva, hydranths and gonophores white.
Measurements (iT)
ILydrotheca
Length of pedicel LS62) ALIA
Diameter of pedicel TW)
Diameter ol spherule SO — US
Diameter at diaphram 133«(L40)
Depth, diaphragm lo margin Hs7 751
Diameter al rim 411 506
Height of marginal cusps 99 WI
Distvnee berween cusps 7 St
Cronothevit
Leng ot pedicel 4 4y4
Diameter of pedicel 7) 7S
Maximum length excluding pedicel h27 Tad
Masini dinmeter 355 4572
Diameter OF aperture ld 15h
Remarks
The abundant gonothecae contain large, probably
male ponophores. The hydrotheeae are deeply
campanulate with a variable uumber of marginal
cusps. -lydrotheeae slightly fattened during
mounting give a false impression of width.
Ih miuny respects Compamnilaria miyiscasix
matches Cimpemilaria molliy Stechow. 1919 but
differs from that species in ils smoother pecieel,
larger hydrothecue with longer marginal cusps cane
larger gonothecae. Schuchert (2001) doubted
Campemilaria groenkindica Levinsen, 1894) Tram
Japan (see Hirohito 1995) is dat species, Hirohiti’s
fieure and dimensions (extracted from his Hgture)
shows that his material is Cevapeitarion Mvsensis,
Chota hemisphacrioa (Linnaeus, 1767)
Mediiva hemisphacrica Linnucus. 1767: 1088,
Clyia hemixphacrica - Millard, 1966: 478, Tip.
I4A-P\- Millard & Bouton, 1974) 5,- Millard, 1975:
217, lip. F2A-D. Cornelis, 1982; 73, fiz, O-
Walsor, 1982; 93, fig. 47k. Cornelius, LO87) 34, pl
| tig. be [lughes, JO87) 178.- Vervoort, 1987) 96,-
Gibbons & Rylind. }989: 402. figs 1Y-2T- bik,
Vervourt & Pages, LY8¥: 106. lig. 31 BOC. Calder,
SHALLOW WATER HYDROIDS OF THE ISLES OF ST FRANCIS 25
Fig. 2 A-BL Campannflaria mivisensis sp, noy, A, hydrotheea, B, base of hydrotheca with pedicel and basal chamber. C.
Hninature gonotheca, D, mature gonotheca with yonophore, F, apes of mature gonotheea with operculum and
submuaryinal collar Seale bar; A, D.C. 0.5 mm: BLE, 0.3 mm.
1991; 2068,- Cornelius, 1992; 254, 257.- Pages. Gili
& Bouillon, 1992.- Watson, 1992: 220.- Calder,
1993: 67.- Boero & Bouillon, 1993: 264.- Watson.
1994; 67.- Calder, L995: 543.- Cornelius, 1995; 252,
fig. 57.- E] Beshbeeshy. 1995: 314.- Medel & Lopez-
Gonzalez, 1996: 205.- Migotto, 1996; 82. 121. fig.15
d-f.- Watson, 1996: 78.- Genzano & Zamponi. 1997:
291- Watson & Melnnes, 1999: [11.- Medel &
Vervoort, 2000: 34. Schuchert, 2000: 413,
Clytia 2hentisphaerivca - Watson, 1994: 151. fig.
2A-E.
Specimen examined
SAM 111369, depth 16 m, colk J.E. Watson. Feb.
2002, material alcohol preserved,
Renrarks
A small ferule colony on bryozoan growing on a
small sponge on rock wall.
Distribution
Cosmopolitin. A common southern Australian
species.
OQhelia Yspinulosa Bale, 1894
Cumpantlarta (2) bispinosa Bale, 1894: 756, pl.
12, figs 5-7.
VOhelia spinulosa - Annandale, 1915: 106, fi. 9, -
Gravely. 1919: 396. ~ Billard. 1927: 333, lig. 2. -
Leloup, 1932: 155, pl, L7, fius 6, 6a, text figs 24,
25. = Picard, 1950: 192.
Luomedea spinulosa Leloup. 1933: 11. 22.
Laomedea (Ohelia) spinulosa. — Rees &
Thursfield, 1965: 93,
Specimens exaniunesd
SAM I11363. depth 10 20 m, coll: J.2. Watson.
Feb, 2002, material alcohol preserved.
Remarks
Abundant fertile colonies infesting a purple soft-
textured digitate sponges among boulders. Colonies
fragile, collapsing out of uid. Hydrorhiza tubular,
loosely adherent to surface af sponge. perisare of
stolons attached to spicules protruding trom the
surface of the sponge. Colonics comprising single
hydrotheeae arising on short pedicels from
hydrorhiza, interspersed with creet stems. to 4 mm
high bearing several alternate hydrothecae,
Gonotheede lop-shuped, arising from hydrorhiza or
beside hydrotheeal pedicels on ereet stems:
gonophores containing several developing
medusae.
In| most respects. especially in overall
dimensions, the present specimen resembles 0.
258
spinulosa but there is no evidence of incipient
fasciculation as described by Bale. | therefore
doubtfully assign it to that species and accordingly,
have inserted a “?" preceding the species name. It ts
unclear why Bale (1894 p. 756) also inserted a *?”
before the specific name of Q. spinosa, It should
also be noted that the figured specimen of O.
spimiosa is erroncously named “hispinosa” (Bale
1894, pl. 12, figs 5-7).
Distribution
Australia and southern India. Type locality, Port
Jackson, New South Wales. Pacific and Indian Oceans.
J.B, WATSON
Notes on Ecology
Exposure to wave action, the very dense algal
forest extending from low water mark to a depth of
25 mand grazing activities of fish have presumably
all contributed to the relatively sparse,
predominantly cryptic hydroid assemblage.
Hydroid species and their substrates are listed in
Table 1. Several small red algae are the preferred
substrate for most species (13 occurrences) and the
holdfasts, stipes and thalli of the brown kelp
Sargassum provided substrate for others (11
occurrences). The solitary ascidian Heredimenict
TABLE 1, Lydroid species anit their subsirates, St Francis Ishin, South Australia,
Species
H. moms
Sponge
i
Llydroid
Sargassum
Seagrass
Epilithic
Alga
Ralpharia mesnifica
Endendrium ?currumbense
Solanderia fuscu
Filellum antarcticum
Hydrodendran armatiun
Hydrodendron australe
Hydrodenetron daidalium
Halecium delicutulum +
Halecium sp.
Srercothecea elongata +
Thyroseyvphus macrocytharus +
Paraseyphus simples
Dynamena quadridentatt
Svnplectoseyvphus subdichotonns
Svaplectascypliis epizoicusy
Sertularela ayvilia
Sernilarella pinneta
Sertularella rabustr
Amphishetia minima
dnphisheta maplestonei t
Amphisbetia olseni +
Hincksella cvlindvica
Pycnotheca produce
Phumutavia filicautis
Monothece eustratis
Monothece compressct
Monotheca flexnose
Monotheca oblique
Munothecer spintloxa
Amennella campaunulaformis
Antennella secundaria +
Getta baler
felanphenio carlniferd
Aglaophenia divaricater
Cumnangiun ascidioides
Gunhenigiin proliferian
Gyinnanaiin hiimile
Gyimnnuniginn superbe
Silicadaria undulate
Orthopuxis caliculata
Orthopvats crenata
Campenitaria giantsxicir
Camipenntilarria nuytsensix sp may
Clitit hemisphacrica
Ohelle 2spinulose
Potal Records i” 6
— | Other
15
SHALLOW WATBER HY DROIDS OF THICISEES OF ST PRANCIS 154
rans, WAS the most favadred invertebrate
substrate, its Jarge leathery test providing hubitat
for miny smaller hydroid species (PL oeeurrences).
Leaves of the seagrasses Posidoala alipustifolia
and dmphibolis anarcnea were colonised by a
suite of small plumulariids (Prevothece pendivete.
Monotheca australis, Manatheca compressa), and
one campanularnid. Siiclarica unidiletea. Lara
aghophemid species were predomibanithy epiithie,
usually growing in clusters ol several to many
stems in sheltered caverns and on tock walls. An
exeeption was Aglaophenia dimiricata recovered
from the holdtast of Saavessany in deeper water, As
hydroids often fayout sponges as substrate il was
surprising that there were sa few reeurds (6
oveurrences), This lack of sponge-epizoic
relationship may be gttibutable to the collection
being chiefly froma shallow water, alaal dominated
habitat. The hydroid fauna from deeper reels below
the algal Zone, not sampled in this survey, are likely
Wy include the larger species usually from: sponse
und olher tvertebrate substrates. Six seal hydroid
species were epizootic on lurger digliopheniid
hydroids. his being a favoured. and iin some cases,
Obligate assocntion (ea. Srayplecrewvevplans
upizoiens).
Twenty one species representing 48% of the
shallow water fauna are endemic lo Australia, most
being restricted in-distribulion to tempernte and eall
temperate southern Australia, Thirteen species
(30°) have a southern hemisphere distribution gnd
four species (95) are cosmopolititn,
Acknowledgements
Fam grateful ta Rob Lewis. lead of the South
Australiin Research and Development lastitute for
the invitation to participate m the [ncounter 2002
Expedition, Palso thank my companions ob variaus
dives and the Captain and crew ol RV Vgerin for
their unfuilingly cheerful assistunee duving the
expedition,
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Hexthles, vulannmiment nonimeés “popheles” (Caen,
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(1K24) Polypiers Mesibles jy 004-0050 fiz
uaw Le ©) & Cain iM Zoulogie "Voyage autotir
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TI RANCHS 26)
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& (LYOR) Athinhe
Fhvroseyphidie und Sertulariidue (ilydrovou.
Crd) eathevled ahr the CANCARP and
Mauritanie tH expedituins of the Nationnel Musewar ot
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& (2000) Athintie Halectidae and
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46.20) 31%,
(1960) The Uydrozou of the south and west
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((73) Manegrant onthe Hydro oo
scnuliern Attien lite OB, FS 19,
(1877) Tivdroids trom Te Kerguelen ane
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ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST
FRANCIS, SOUTH AUSTRALIA: MYZOSTOMA AUSTRALE
(MYZOSTOMIDA), A NEW CRINOID ASSOCIATED WORM
FROM SOUTH AUSTRALIA
By G. W. Rouse!
Summary
Rouse, G. W. (2003) Encounter 2002 expedition to the Isles of St. Francis, South
Australia: Myzostoma australe (Myzostomida), a new crinoid-associated worm from
South Australia. Trans. R. Soc. S. Aust. 127(2), 265-268, 28 November, 2003.
No Myzostomida have been described from southern Australian waters. Most of the
described myzostome taxa to date have been found in the warmer waters of the Indo-
Pacific, where their crinoid echinoderm hosts are most diverse. In this paper a new
myzostome, Myzostoma australe n. sp., is described from the crinoid Ptilometra
macronema (Miiller 1846) (Ptilometridae) taken from waters off the Nuyts
Archipelago, near Ceduna, South Australia. Myzostoma australe is an ectocommensal
on P. macronema and somewhat resembles other Myzostoma informally placed as the
‘ambiguum’ group by Grygier (1990). It differs from these in having a markedly
ellipsoidal body with an oval arrangement of parapodia displaced forward, combined
with the anterior two pairs and posterior pair of cirri being longer than the rest. There
has previously been no myzostome recorded from any species of Ptilometra.
Key Words: Symbiont, Comasteridae, Crinoidea, Echinodermata, Annelida.
Peonesietens cf the Raya Sacteny af S. Aust 20QU3),.1271 1. 265 268
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA: MYZOSTOMA AUSTRALE (MYZOSTOMIDA),
A NEW CRINOID ASSOCIATED WORM FROM SOUTH AUSTRALIA
by G. W. Rouse!
Summary
Rost. G. W. (2003) Fheounter 2002 expedition to the Isles oF St Ri anels, Sout Australias Wyrestemiranernile
(Mydostominak a new ermoid-assoenited worn from Soutly Australia, (hay, Bo Sec. AY igt 127/21. 265-268,
Ok November, 2003,
No Mysustomida have been deseribed trom soutliord Australia wators, Mastolthe deseribed my Zostonie tae
to date have been found inthe waruer waters of the Indo-Pacific. where there crioid eehiioderm busts are mast
diverse, In this paper i new myzestonme. Miceaxvonee custeate a. sp, is desertbed (rom the erinoid Paloneni
WweroneMma (Miller (846) (PHlometridae) taken front ayetters ofl dhe Nuyts Archipeliwe. tear Ceduna. Sourh
Austailit, Myrestoma caievrale is an eereommensal on 2 omacreneme und samewhab resenibles ether
Mycestaau informally placed as the "vine aroup by Cryer (OU), Le ditfees from these ai Wav ine et
markedly cllipsoidal body with avy oval areangementof parapodia Uisplaced forwark combined wi) the waterion
Lvo pairs and postenor par af cite here lonwer Man the rest Chere has previously been no unyzostome reearded
from any species of LY ilametry,
iy Worne: Syinbomk Comasiondic Cradan Lebinodermiia. Annelida
lutreduction
Myzostoniidi is a@ small ting eainprising around
150 deseribed nominal species. Currently there is
debate on the overall position of the wreap. with
authors variously favouring @ postion among
polychuctes (Rouse & Pleijel 2001). or outside
annelids and closer to plityhelminths (beekhaut e/
ul 2000) or politees (Armavy of af 2001).
Myzostomida are all obligate symbionts, mainly
with erinaids but seme with other echiodernis
Many are mobile und rom over the host, stealing
food lrom it, but others remuin sessile near iu
conyeynent ‘Teeding’ site. Seme induce the bust oy
form gulls or evsts around them. while others: dre
endupurasitie. livin in the wil lumen, cocloni or
wondds of their host (Ciygier 2000, Rouse & Pleijel
2001), There isa wide range of body forms in the
vroup. with Mattened oval or dise-like forms being
predominant, however, many are elongates, ridged. ol!
having extensions of the body that allow therm. for
exaiple. to reseinble (he pinnules of their eringid
hosts, Mobile myzostomes also show a wonderlul
diversity of colour pallerns that venerally match
those of their hosts. Myvostomida ace fogarty found
Where cringid diversity is ereutest, numely coral ree?
environments. and more thin LOO deseribed species
are known fom the Indo-Pagific (see Grywier 1990:
2000),
VMycostome diversity is low in colder waters. with.
For instanes, only a few know Moar the well-studici
Furopean waters. For Australian witers, Gryier
(2000) stated that there are about 70 deseribed and
'Maring Tivepiebrates, South Vostriiiit Muselim, Marth Leuce
SA SOOM Mvstet ta
undeserited speeties of Mesexontie present i
muscum collections. 60 OF these OCCU ie i) waters
of the Creal Barrier Reel. Northern Territory anil
Western Australian north of Shark Bay, Cryzier
(2000) thoted that the tenmperite cousis a? Ausivaliu
have relaively few myvosteme species ¢ 13
hetweeli Fraser tshind und Perth); Grygier (1990)
indivaled the presence of one species in South
Australia, but did not desuribe or nuime it Here anew
Inyvostome tixon ts described from specimens. of the
vrinuid Prifomerra macronene (Maller, S46) jalken
mowalers oll the Nuyts Archipelage. South Australia,
This represents the first deseripoon ol a myzostome
from southern Australian waters. The present species
is distinet (om that voted by Girygier (1990) in South
Australia (his species no. 37) which occurs on the
comasterid crinoid Cenalie trehoptern (Miller,
IS40) (MAI. Grygien, pers. comm).
Materials and Methods
Crinoid hosts were eollected by hand while diving
wilh SCUBA ortrawled by the RV Veerin over the
period of 22-23 February 2002. Worms were
vallected from living erinoids placed indera Leica
MY-8 stereomicroscope. Living worms were
nlorasorpned using a JVC-XC3 digital camera. The
worms were then relaxed wo Pe ke, chloride
solution before ber fixed ia 10%, formalin tu
seawater. Alter 24 hours the specimens were rinsed
in freshwater and placed ib 7%, ethanol, A
parapodium from the 4th ‘segment was removed
(ron) a paralype and observed an vlycerine under
iilerferenee contrast microscopy with a Leica DMR
imicroscope, Those studied with scanting elvetron
microscopy (SEM) were dehydrated in ethanol und
(ve
V WIS
. FO cn
higetoa Dorsal view ol holotype (SAM F348) while att alive aid at at
Vrnule ot ies erin le
pst Peddeverreded ene iaoneieandee
Fhe mirevert Gis partly ewerted, Phe right postenotaniest clrriis CUM is tieking. by Venta
view ab TS speedier
showing eval crtinwement of paripodia and everted ibrrovert Gy. Phe lout arrows mifionte the lieatin at the titern
orgirns on one sadeeol The Hedy. © SIM ventral view OF paritype (SAME FA51) shawl elemcel Gpermime (ey. partly
overied penes (pe) and everted latvevert (i. Twe-evertad Hera barins are Hite hy nvmws, dh EM ventro-liters
view af partivype (SAM 13554) showing the clongule parapodit ind vente) patelies wh era
SEM ventral view a
anterior end at paratype (SAM 1.455 )) showing evened untrovert() amet fivst later) organ (ah SIM ventral stew of
cwerled Tilrowert of panitype (SAME PASS} ) showing three pairs al boven! papillae, Phe first lett papilla is ticki
4
SEM vential view of mid-region af paratype (SAM Pass ty) shoving partly everted penis (pebal base of parapodiain 3
and lateral atgan (1) lying between parapodia 4 andl bh SEM view of parapedinm 3 of paraype (SAM Fas8 7) showiie
cere! hook (eh). i Differennal inteclerence contest mierograph af parapediam oF paratype (SAM P4444) show iis
2ceuld (suppert rad, sew HA manubciin Gi. emergent book (eh), and rephieement hook (rh)
TON EW CRINOID ASSOU LATIN WORM PROM SOL PEAUSTRALTA 267
then erilival point dried psing, COs They were then
vouted with gold and viewed using ua Philips NL-20
scanning eleetron mierascope.
Results
Tuono of Mycostom australe (8p,
Vfererial Bvemineel,
Melony
(SAM V3348) an 70%) ethanel, found on
Milomeiva macroncenl (Miller, S46) ab 19 in depth
ell North Port of St Praneis Tsk. Sunyes
Avelipelama, SA. (32 20° VN & 1a30 16! 95.6"
Py 0) Rouse, 22-2.9007,
Miarutpes
(SAM 03349) in 70% ethanol: sume volleetion
detiils as holotype, | (SAM 13350) ip 70% ethanol,
found ol Ao weeronend dredged at
Nuyls Archipelago. Sa. (32° 30" 04K SS) faae 19
O83" S) G. Rouse, 23-21-2002: 2 (SAM PASS 1) on
SIM witlby sume colleenon deuiils os holotype
Lhvolase:
bront the Latin (gender neutral) eaestre/. south,
referring to the country and southern oveurrenee of
this axon,
Oiawnises
small inyzostomes with Hattened. elipsoidal body
clonwated posteriorly, Ten pairs of (hin marginal ivi,
wilh cir $, 2, and LO several times longer (han
shortest lateral citi, Jatiovert with) A pairs of buccal
puplie, pouch opening in lront ov first parapodin
close to body margin, Parapodia acurate, clonuate.
arninged iiellipse whead ol mid-body region, Penes
estending ab least 100 tin. Fours pairs of small lateral
organs located between purapodit and body margin
Emergent hooks of parapodia with moderately thick
shat, Up curving 90°) Aciculit shorter and: thinner
than emergent hooks. manubriunion one side only,
Similiineous bermuphrodites, Letoconmmensials,
Deseriptian
Body ellipsoid und Oat with long asis santero
posterior Halotwpe [2 mm long, 0.6 min wide (hig
la), Paralypes ranging from | to 2mm long und 0,6
to 1.0 mm wide, Ventral side with ciliated patches
(Pig. 1d). Tho with thio ridges extending: from venter
to parapodia (Mig. dey Ten paws of fine marginal
cited, WHH cirri |. 2. und 10 tivo to three tines longe)
than shortest lateral cirri. Lateral ebvi gradually
becomlie longer loward front and rear (Firs ba. b.
a). Opening of introvert pouch small and ventral,
closer to parapodia fo fin to aeterier mucin
Introvert capable of protrudiig ta equivalent to 20%,
S0in, depth oll
of body length (Pig. th), Three pairs of huecul
papillae (ig, 1), Cloaeal opening for digestive traet
aod female wenitel duct Oneethird of way from last
parupodia fo renrmargin, Colour in bite red with mice
dorsal longitudinal white steppe on with scattered
patches of white blotches on fed) Colour at
preserved specimens while, Paripodiia sel in anlero-
posteriorly elongate ellipse lying distinetly ahead of
Widebody, last pan at about 65%, of bady length (Vigs
Ih. c,d). Parapodiv each lying about onesthird ty
Hon body miangin to center of oval (Pigs th, oe.
Hach parapodium with conical base licking eirus.
und with slender, Qlongate Cup ta 200) pin when
extended), finger-like distal part (Fig. td), Pair of
penes at lateral buses of parapodia 3 capable of
protruding al least LOO tim (Pigs Ceo ds 2). bur pates
of inconspieuous literal organs alternating with
parapodia, (heir openings visible as found holes
between parapodia and boy margin (ws bby es 2)
One parulype with two lateral organs everred (Pig,
fe) Emergent hook shufls moderately diek. with
distal (th bowed slivhily outwards tip short, sharp,
andl curving 90° (Pigs Tid) Aeieuki (Support rod) ol
cueb puripediunm shorier than hook amd two-thirds as
ihiek: manubriuny reetunwular, developed au ane side
ofshali (hig. 1), with three small lobes along drawn.
out dimer Hngin, Oe replacement hook loutd tn
wach parapockimn (Pig. 1),
Discussion
There his been no previous record of myZostumes
unoany species of Prifomena, the uoly wentis iW
Pillomeindae. This genus af erinoids is restricted ta
southern Australian waters (Rowe & Gites [995)
and contains only Péilumerra cnateedis (Wilton.
Ts43) and) Prifenetrd meerancima, Mlysesteane
airede imity belong ner the carinii asroup of
Miroxrane os identified by Cirygier (1990), This
group is characterized by haying a fat round to
shield-shuped body. with the anterior and posterior
one to two pairs OF marginal cite much longer thir
the others. Cirygier (1990) named the following
HUM taxa in this group: Merostome dbibigdia
Giralh VS87, Wy rostemte cireiatin Grall, ESS4, AD,
fonioivin Gtall PSST, M1, lomeini Higersten,
OST und VW pesto Grall UXS3. will all bad the bast
found in Pacifie waters, A subsequent deserpuan of
MO simvaporense beekhaut oer a, 1994) from
Singapore, hits compared another taxon (this
Mba group (Peckhauter al, L9O), Wires tener
australe is easily distinguished by its distinetly
ellipsoidal shape with the oval arrangement of
parapodia displaced forward, combined with the
anterior awe pairs ane) posieciad pair of viet being
longer than the rest. AIL other taxa in the wuhigain
Lroup Inve rounded or kite-shaped bodies and much
265 a. W. ROUSE
longer posterior and anterior cir. Mvzostome
yingaporense appears to be the closest morph-
ologicully to M4 ausirale mn. sp. but has a more
rounded body and has two anterior and two posterior
pairs of elongate cirri
Acknowledgments
Environment and Heritage) and Scoresby Shepherd
(South Australian Research and Development
Institute) for organizing my participation in. the
Nuyts expedition. Thanks also to the RY Negeri
crew for their great support. Reviews by Mark
Grygier and an anonymous reviewer greatly
improved this paper, This paper was supported by the
South Australian Museum and an ARC QUI
Thanks to Sue Murray-Jones (Department for fellowship.
References
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Montreyar, DL, JANGoUX, M. & MILINKOViECH, C.
(2000) Myzostamida: a link between Irochozoans and
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—— _ VANDENSPIEGEL, D. & Gryairk, M. J. (1994)
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Indo-Pacific distribution recards and deseriptions of
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under the supervision of Alexander Agassiz, in the Gull
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Commander J.R, Bartlett, U.S.N., commanding. Avil
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_ (1884) Report on the Myzostomida collected
~— during the voyage of ILM.S. Challenger during the years
1873-1N76. Rep, Seient. Res. Voy. LEMS Challenger
1873-1876. Zovol. WW \-82.
(1847) Report on the Myzostomida collected
during the voyage of HLM,S, C hallenger during the years
1873-1876. Supplement. Rep, Sctent, Res. Foy, HEMS
Challenger 1873-1876, thic. WW. 1-16.
Creyowr. M. J. (1990) Distribtion of Indo-Pacific
Afycostoma and host specificity of comatulid-assocjated
Myzostomidia. Budi mar Sci. 47. 182-191.
(2000) Myzostomida. pp. 297-329 fi Beesley.
~P., Ross. G. J. BL & Glasby, C. 1. (Eds) “Polychaeta and
Allies: The Southern Synthesis. Fauna of Australia
Volume 4A. Polyehacta, Myzostomida, Pogenophara,
Echiura, Sipuncula” (CSIRO Publishing, Melbourne).
JAGrrsten. G. (1937) Myzostomiden von Prot. Dr Sixten
Bocks Expedition nach Japan und den Bonin-lnseln
1914, drk. Zool, DA, 1-35
MULLER. J. (1846), Nachtrag zu der Abhandlungen iiber die
Comatulen, Beright fiber die zur Bekanntmachung
weeiznelen Verhundlungen der Koniglichen. Mhe: K
Preuss. Akad, Wiss, Berl. 18462 177-179.
Rousr, G. W. & Purina. F.(2001) “Polychaetes”
University Press. London).
Rowr, FB WE. & Gares. J. (1995) “Echinodermata”
Valume 33, Zoological Catalogue of Australia (CSIRO
Publishing, Melbourne).
Winton, C. PLN. (1843) Art. UL. On a new species of
encinite (Lacrinus australis). Tasm. J. Net Sci. 2, 1V8-
120,
Zezavy, J, Uvesa, Vo & Tierz, D. F. (2001) Myzostomida
ure not annelids: Molecular and morphological support
for a clade of animals with anterior sperm fagella,
Claclistics 17, 170-198,
(Oxford
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF
ST FRANCIS, SOUTH AUSTRALIA: REEF FISHES
By S. A. SHEPHERD! AND J. B. BROOK?
Summary
Shepherd, S. A. & Brook, J. B. (2003) Encounter 2002 expedition to the Isles of St
Francis, South Australia: Reef Fishes: Trans. R. Soc. S. Aust. 127(2), 269-279, 28
November, 2003.
Reef fish populations of the Isles of St Francis were surveyed by visual census along
transects from 5-20 m depth and over a range of exposures to swell. Overall mean
densities of ~0,5 m* were recorded divided among 5 groups: (1) mid-water species,
mainly planktivores and macrophage carnivores; (2) species associated with soft
bottoms or seagrasses; (3) reef-dwelling species, mainly benthic carnivores and
herbivores, that swim within 1-2 m of the algal canopy; (4) reef-dwelling species
living under the algal canopy or close to reef structures, and comprising benthic
carnivores, omnivores and herbivores; and (5) cryptic or cave-dwelling species,
mostly carnivores or planktivores. The very high abundance of fishes recorded,
termed the offshore island effect, is hypothesised to be due to high local reef
productivity, a high carbon subsidy from the sourrounding seas, and low fishing
pressure. Juveniles of some species recruited in particular habitats defined by depth
and exposure, and abundances of post-juveniles varied along depth and exposure
gradients. The patterns of distribution suggest, in the case of wrasses and
leatherjackets, habitat partitioning among similar co-occurring species, in the case of
herring cale, differential food abundance, and, in the case of the scalyfin, a gradient in
topographic complexity.
Key Words: Reef fishes, wrasses, leatherjackets, southern Australia, trophic fish
groups, fish distribution patterns, fish abundance patterns, offshore island effect.
Prdisac hats af he Rava Sooty aps list (2003) 127( 2), 2692279.
ENCOUNTER 2002 EXPEDITION TO THE ISLES OF ST FRANCIS,
SOUTH AUSTRALIA: REEF FISHES
by S.A. SHEMILRD! AND, B. BRoox:
Summary
SHPPRHPRD SAL ke Brook, LB (2003) Preounter 2002 expedition to the Isles OF St Eraneis, Seah Australia:
Reel fishes. Tray, Re See. 8. Aust, 1272), 269-279, 25 November, 2004,
Reef lish populations of the Isley of St Friicis were surveyed hy visual census along Uarisuets from 5-20 114
depth and overd minge OP exposures to swell, Overall mean densities Of 0.5 1) were recorded divided uniong
3 groups: (1) mid-witer species, mainly phinktiveres and microphase carniveres; (2) species associated with
soll bottoms oF seaurassess (4) teel-dwelliiv species, mueihy heathic carnivores and herbivares, thal swatn
wilhin Ie2 om oF the algal canopy: (4H reeldwelling species living wader the algal canopy or close to reef
strictures, and Comprising benthic curyoress ammiveres and herhevaress and (5) erypne or eave-dywel line
specics. MbALY carmivares oF plunktivares, The very bith abundance of fishes recorded. termed the ofishare
ishind effect. is Nypothesised to be due to high local reef productivity. a high carbon subsidy tron the
sturvouinding seas. dnd Low fishing pressure, Juveniles of some species tecruited ty particular habihats defined by
dept and expostite, and abundanecs of postsjuvertes varied along depth und exposure gradivols, The patterns
of distibuliion suggest, inthe ease uf wrasses and leatherjackets, habitat partitioning among sunilar eo-aeeurring
species, the ease of the henjng cule. diflerenbal (ood abindanee. and. in the case af the sealyfin, a gradiont
In Lopagtraphic complonity,
Ky Wokbs: Reef fishes: wrisses lenheraekets, southern Australias (rophiv fish vroupss fist distribution
pullerns: Fish dbundanee patterns; offshore istind efleet,
Introduction
Shallow temperate reefs are known lo be highly
productive systems yet the sttieture ane Composition
of fish assembliges are virtually unknown in South
Australia. although knowledge has adyaneed
elhewhere in southern Australia on fishes ol shallow
reefs (reviewed by Jones. & Andrew 1990, Barrett
[9952 Turner & Norman 1998, Curley ef af 2002),
The only published avcounts of coastal reel lishes i
South Austr are those of Kuner (1983) and
Branden er a/ (J986) wha-compared twa fish censtis
lechaiques tthe Investigator Group of shuns,
The Pnenunter 2002 expedition to St Pruaneis tsles
the custern Cieeat Australi Bight from 16-26
February (Robinson er ai ING) eave the
opportunity to survey the fishes of these offshore
islands. Coastal reef fishes have been heavily
explored in southern Australia lor mitny decades by
spearlishers (Johnson 198Sa,b) and anglers, so that
pristine vbundanees of fish are now rave. The Isles af?
St Feancis are very lightly fished by one or tive
Nishers from Ceduna, and the fish assemblages. like
those of the Investigator Group, fay be considered
pepresenkilive oF ratural assemblages once common
on mainkind coasts,
‘Seiten Boswarch Pettey Saul Aostiabiit Resear ail
Dorelopment Histitnne, MO) Bow L2 Thealey Boach. Sali
A\etntlit. S022, Timith shepherd acdres ly sities Sa sey arb
POBox TL Noviiisilhe South Aull S024
IL is known that water movement and depth
gradients tnfluenee the eomposiion ol reel fish
ussemblages as well as macrophyte communities
(Shepherd & Womersley 1976) inawhich fish reside
ind reeruilt Glones T9OXk: Jenkins & Wheatley 1998),
The purpose of this study was to quantify the
ubundanee und sive structure of reel fishes glong
depth and water movement eradients wa relitively
pristine environment, and so gan insights into
juvemle habitats. und abundiunees of adults on
coastal reefS around offshore islinds, Sevondiary
Purposes were to wather data for futire regional
veosystem modelling. wd for the selection of marine
reserves 1 wuytls Archipehigo.
Methods
The Isles oF St Francis ure exposed (Oo strom
prevailing south-westerly swell as well as seas from
(he south-east generited by strange southeasterly
winds during the late summer (Shepherd &
Womersley 1976), The annual sea suttace
tempore tange is from b= 20°C with cooler
bottom waters during upwelling periods. drgh
peneiration is generally high and corresponds to that
for Type Tl oveame water of Jerlow (l9GK) (sce
Turner & Cheshire 2003),
Roeky substratum is.oF moderute to sigeply slopiiy
unimitie rok ar rhyolite (Robinson er ad 196) Ferris
2003), comprising jointed blocks | 4 in in size,
forming between and under (hem numerous crevices
270 S. 4. SHEPHERD & J.B. BROOK
Bate sand
@3
WEST
ISLAND
EGG ISLAND
3 SMOOTH ISLAND
FREELING
ISLAND
—o oo 2
Ly bos
ISLAND
ST. FRANCIS ISLAND
6 8 Kilometers
Fig, 1, Map of the Isles of St Francis showing the location of siles sampled (@) wilh exposure tidex Value in brackets.
and oceasional caves. Caleareous substrata,
comprising continuous or fractured avolianite reel to
5 m deep, occur on the southern shores of Petre!
Bay and on the north side of Frecling Island and
provide a topographically complex habitat
(Womersley & Baldock 2003). Generally, rocky
bottom meets the sand a about 10 m depth on
sheltered shores. increasing to 25 9 30 m on fully
exposed coasts, Overall, topographic complexity.
while it varied on a small scale, ai the scale of
sampling in this study (100) 200 m) varied little
between sites, but declined somewhat with depth as
block and boulder sives decreased.
Dive sites were classified subjectively according ta
exposure to swell and given an exposure index (El)
ranging from 0 — 4 (o encompass the range of water
movement from extreme shelter lo extreme exposure
to southwest swell (modified from the classificatory
procedure of Barrett ev a/, 2001). In all, 17 sttes were
selected to cover the full El range (0 —4) from depths
of 5 — 20 mat 5 m depth intervals. Dives were within
‘Rdyvane, ROS. & Baker Jb. (1999) Marine heritage values of the
St Meancis [sles vim Jnvesbgator Isles. South Australia, SARDI
Final report to Austialian Heritige Commission. 36 p> Agures
| (rarely 2) moof the nominated depth. However,
prevailing swell and southerly winds largely
restricted dive sites to those with a northerly aspect,
and in consequence restneted the statistical analyses
possible.
We used the standard visual census method
(Barrett) & Buxton 2002) to estimate the size and
number of fish of all species observed other than
small cryptic species. The diver swain with a reel and
§0)m line on a given depth contour, and recorded all
fish within a Sm swathe to a height of about 5 m in
the water column, The diver swam aboul } m ubove
the algal canopy at a constant speed and did not
attempt to search for small (<10 em) cryptic species
under the algal canopy, but did record juveniles of
TAGLE |. Distrifution of censuses on dept: and exposure
inde wradients. Exposure indices range frum 0 — 4 aver a
depth range from 5 20 nr.
Exposure = Index
Depth (in) 0 | 2 3 4
5 3 5 3 3 4
ip 45 6 A 4 4
[5 = - 3 = -
+0 - = i} 3 5
RILEP FISIIES OF ST FRANCIS ISLES WI
Sa we
= en
:
=" ee “
| st
:
*
hig 2? Sehemiite dite ol thy spaliihorginr2ation of ree
fishes mo the waler colina, Croup tops pelagie or miv-
Wither species, Crroup 2 is spevics living in seagriiss on cll
soll bottoms, Group 3 as species will restricled range on
rocky substrata (hat swim within bm of the aah canopy.
Croup is species with lawalised range that live wader the
ileal eatopy. Croup 318 ceypiie species Feiig i enyes a
ereyiees. See Lest tor farther details
lirger species seen in crevices and caves within the
ea covered by the swathe, Estimates of lsh sizes
were recorded in S cm sive chisses lo 40 cm size,
then in the size classes 40) 300m. a0 70 em and
Tem, (in the last group we estimated the size ol!
wach fish) Divers were previously trained ond
capeneneed in udderwiter isi surveys. There were
2 4 replieule vensuses. per sie al each available
depth interval, as meommendced by Branden er of
(J986), except when divers were restricted by diving
lime ints, Underwater yistbility. was usually 10
lS in. bul during days ol moderate swell wilh a lower
visibility of ~8 my we conducted censuses i Petrel
Bay at S 10m depth. In all, 53 transects, eaeh
vovering 250 1, Were done atthe 17 sites shown jn
Fig, |, distributed among the depths and Els shown
in Tablet,
Juveniles of seme species, nobly the labrids
(Notalabrus terreus, dastaluheus meouletes, and
Ophthatinalepis — dinealanis). western tala,
Chelmonaps cariosus, and sealyfin, Perma vietoriac,
were sooderately cooimion i sede censuses, We
used the O10 em size class asx a mdes of thew
vbundanee, except fer blue groper, devoerceliy
vole, where we used the 0 20 em size class for
yuveries and the 20 — 60 entsize chiss for sab-adules
(afer Gillanders 997). Phe habitats of juveniles,
Where abundant, were defined in ferns of location on
(he depulebl wradicnt,
Abundinees of 10 site-atlached species with
49 ocuurenee i tinseets Were examined for
correhitions with depth (9 specresd) amb bb os
species), Vor three speeies of labrids with
Onlogencuc shifls in habitat we examined pitierns
for osinall atd fare sive classes separately.
Correlations were alsa examined between (1) the
ubundinec of herring vale. Qelar everramedlas. and
hiomass of its preferred food, Mek/onia, using
biomass data trom Shepherd & Womersley (1976)
and Pdyvane & Baker (19999), and (2) the change i
the sex ratio of the bloc-throated wrasse. No lerriens.
with depth. This wrasse is uw protogynous
hermaphrodite (Shepherd & Clarkson 2001) Smith ev
ah 2003) and reaches sesual muturity as a female
from }3 20enm (Smith ev af, 2003) GC. J. Edyar pers.
comm.) Assuming sexual maturity ut 1S em, we
“Meuhited femalesmale sex ratios for eaek transeet,
ind examined the decline in the sex ratio with depth,
In all. 20 correlations were caleulatcd. se, by chanee
alone, one is expected to be stumificant ab P<0.05
Levels of significanee at P= 0.0) should therefore be
vecepled wilh cuubion,
Correlations of species’ ubundances with depth. a
continous varible, were tested with pitrametrie
fests, and correlations with El, measured on ay
ordinal scale, and with ses ratios, were tested wath
the Pearson mink non-panumetrie test (Conaver
LOR),
Information on fife habit was based on our
observations, and nomenclature and diet of fishes
were variously extracted front the publications ot
Fdgar or al (l982) Gomon er af (l994)D Pawar
(1997): Hutchins & Swatiston ()999Q; Andrew
(1999) and Kuiter (2000),
Results
Strnelure of (ish Asseniblaves
We recognised five coulowieal groups al fish (el
Hermelin LOSS) according to lire habit and behaviour
(Fig. 21
Ciroup |, pebugie or mid-watler species that rane
widely and swim above reel habitats. isually in
schools or snd) proups. They are mainly
planktiveres aod macrophage canmvores,
Group 2: species that dive und decd anong
adavtasses Or on sundy bottom, bul Oecedsionally visit
adjacent reel habitats. They are mainly benthic
carnivores,
Group 3: demersal reel-dwelling species that swim
within ~t— 2m ofthe algal eanopy, They are benthic
camuvores. omnveres tnd herbivores usually with
home rinwes that extend over tens of metres (eu
Wrasses) to kilometres (ew vehra fish, Gire/le
zea).
Croup 4; reel-dwellimg species living under the
algal canopy or close to reef structures with some
tehel and usually having small home ranges or
272 S.A. SHEPHERD & J, B, BROOK
(b) blue-theosted wrasse. M= 1102 {c) blue-throated wrasse NM = 256
depth >10m or deptr=10m. El >2
(a) Hus groper, W=61
all values of oepth, EY depth 510 m, El 0-2 ot depth = Sin
> > >
G e =
i a 50 =
— 3 2
£ £. 4
4 ~ = =
3 £ F fa ¥
: Pt se iy
Pep~eReese Beppe Resse
9 fsznmn orm = oO f- & & ¢ be. b4
nvnomocoos. now ] & 3 co 8
i=]
{d) senator Wrasse, N= 86 (o) blackipotied wrasse, N= 166 (f black-spotted wrasse, N= 32, 7
all values of depth and Eb depth >* 10m and El <2 depth = Sm andior El = 2
=
: i
E Hi
* £
= a
SSR BREE
SRARRA LA
(gq) rosy wrasse N= 19, (hy maori wrasse, N= 37, {i) Maeri wrasse N=87
all values of depth and. Et depth <= 15in 5 depth = 20m
rr > ae
§ i 5
= =o 2
z £ E ,
cal = ce
==
eye RR SBS
eeR GRR a aS
na owodgd t ¢
() Western talma,
N23, all values of depth and Ef
1) yollow-striped leatnerackat
N= 152, all values of depth) ane Et
ik} harseshne leatherjacket
N= 18, all values of depth and El
icy a ry
& a a
5 g z
£ z g
4 oF =
Peeene sag
o=>PRBE BAS
vowong co =
(fri) branding cate (n) magpie perch. N= 55 jo) magpie perch, N=S7
I 147, a8 values of depth and Eh 5 depth <= 10m and El=1 -_ depth > 10m andar El <>1
5 75 - - -
B a g
3 3 3
5 E i
2 * =
BSARRBE RS
bp Sb Bou
wnmouwudoean
ie
(g) southern hulafish MW =920 fo} rmenbghter Ml = 146, (r} 2enra fish. NM = 301
& Noarlunga hulafish W= 1170 nil yalues of depth and E) all values of depth and E)
> >
i a
= i
3 3
E £
Nig. 3. Length-lyequeney distributions of comimaner reel Fishes. Data combined tor all sites unless ofherwise malicated.
at blue graper: b: bluc-throwted wrasse - combined data for depth 5 — 10m, b1O—2 and Sm Fl 4 — 4 showing reerutiment
regions: ¢: bluc-throdted wrasse - combined data for remaining sites ab lO — 20m and ELS 42 do senator wrasse:
ce: black-spotted wrasse ~ combined data for 10 — 20m, EL 0-2 showing reccuilment regions; [= black-spotted wrasse
combined data lor sites at other dep and PL ge: rosy wrasse: ho maor wrasse — combmed cata tor all sites $15 m
depth showing recruitment regions; i: mion wresse — vorobined akata for all sites at 200m depth: p yellow-striped
leatherjacket: k: horseshue leatherjacket: F westem tating. me herring eale: nt magpie perch combined data for high
density sites Le. 5— 10am El to ce magme perch combined data for all depths at EE 2 4: pz Noarlunga bulatish (grey)
and southern hilafish (black) g; moonhghter: rz vebra fish
KEEL FISHES OF ST FRANCIS ISLES
273
PARE 2. Listaf species recoded in eensises according tu coolauical wrap. Mean densin: in occupied Waitiseets iv wiven
for cack species ia nunbers. 250 ap ant ance size been,
was recorded FT ix locding nipe, ¢
carnivores Po planklivere, O- amuivere:
“ace, Is the percentage af all transects in which the species
BC henthic carnivere: A-herhivare:
Evposie tiles = ER sic. = standard error Overall mean elensities for cach sroup for all trimseets ure elven in hile.
Coniman name Seientific nunie bT Density (sel Density (se)
EL 0-2 El 3-4
Group 1 (em) (5.2)
Blue morwong Nemedeac tvs velonciennest Bt 10 i)
Long-tinned pike Dinalostes lowial C 0) 148 (121)
Snuok Sphvruena novaehottuniae CC KA (3.6) 0
Sea sweep Seanpix dequprnuts P 7.2(2.7) 6.01 (1.0)
Banded sweep Scorpis 2eoretais P 2 3.0 (1.8)
Butterlly pereh Cuosiapenca lepidaptera P 4.7 (07) 29.2 (14.3
Barber perch Cuesioperca rose P 19.5 (74) 16.4 (3.0)
Old wile Bhaptosts: aentetus P 15.7 (3.9) 4A (18)
‘Tommy rll Arripis geanerane P 1s. a)
Mean density 194
Croup 2
Silver (while) trevally Pseudocarans denen BC 8F2(54.2) 75d)
Red mullet (gout fish) Upencvichthys 1 tamimegn BC 2.2 (0.2) 3.3/4)
Yellowlin whiting Silluge schomburakiz BC OA (SAN \)
King George whiting Sillaginodes punctati BC 2 0)
Sand (skipjack) trevally Peeudovarans wright Be 36
Southern silver belly Pareguitla meloaenensis BC LO (0) AO (1A
Mean density 10,4
Group 3
Western blue groper ihoerodis goaukdit Be LTT) 22d)
Long snouted boartish Pontacerupsix cecurvitustiin BC " |
Dusky morwony Dacivlophova nigricans til 1.2404) 2
Silver drummer Kyphosus sverovauns ‘I LS (OS) LA (U2)
Harlequin Fish Oihos denles « LOU) Lod)
Blue devil Paraplesiops melesuriv BC LO) LOO)
Magpie pereh Chetludacntis nigripes ine 3.7 (hs 27 (9)
Zebra fish Criredicr selyer I SLC) ob (40)
Luderick Cinelli tefeuspuititia ) () F O(n
Brown-spoticd wrasse Notatubrus paritis Be |
Blucahrowed wrasse Notalabrus tenes BC 34.4 (3.9) 174 8)
Pretty polly Drearcilrbris elivainttin tis BC Loa) O(a
Maori wrasse Cplithelsiatepis Lideataties BC AN (7) Ns (1.7)
Rosy Wrasse Prendelabous pyitiveutis BC 1) (Lb) FAV LOY
Westen wirrah Jeanthixtins servatis c | 0
Yellowstripe leatherjucket Meusehenia Havolingate 0 Alc t) 3.1 (0,7)
Horseshoe leatherjackel Meusehenia hippecropis Bee 2 (U3) 23 (06)
Stars/stripes leatberjacker Veuise bert wortinter a) 0) {3 (0.2)
Blue-lined leatherjacker Veuschonia sealit () () |
Rouvh leatherjaekel Scabitichtlivs vreuititatis 0) | )
Dewen’s leatherjucke Thoamnacopis evens RC 0) |
Voothbrush lemtherpickel decrihafateres wintiner BC | ()
Bluc-tuiled leatherpacket Puhalichthyy evanouta BC i] 2
Western (alii Cholmenops curiasis He 18 (0.2) 2.1 (2)
Western footballer Neavpies ablighias HW 20) AR (TAY
Mean density 43.1
Group 4
Herne cule Gila cpanontelas tl tS LA) FOULS)
Senulor Weasse Pictitobrus tatichaviis RC 239 (03) 31 (04)
Victorian sealyfin Parner viclovian {] 23 (0.3) 22 (0.3)
Moonhehter Tiled secfane dein BC 3.5 (0.7) AK (LG)
Ruimbow cale Clay evaptilis RC 1S (05) 0
Snakeskin wriisse petits anenstipes RC 17 (0.3) 0
Black-spotled wrasse Austieofobeus maculaties BC 11,1 (2.6) 3.0007)
Shaw's cowlish Araecnnt crite BC 2.0 (0) 10 (0)
Long-rayed weed whiting Siphonogmarhus racine BO 2.000) 4)
Weed whiting Haletio semifaseteata Ht 0 al
Pencil weed whiting Siphonnenathus beaktones KC 1000) 230 (17.0)
Mean density 13.3
Groups
Orange-lined bullseye Pemphoris sp, ( | ()
Common bullseye Femplhoris multivendicte ( AO (0.6) 4.0 (0)
Southern hulitish trac hinaps catelimeacilanin 0 OLOUTY) TOGA)
Noarlunga hulitish Trochineps nowt lune P 730 (250) 85.0 (22.3)
Mean density 39]
Total density 125,34
Mean
Size
4n0
1.50.9)
45,0
[YS (U7)
22.5 (1.4)
244 (11,9)
1.0 (0.2)
53.03,2)
OO0
40.7 (SA)
40.9 (1.6)
40.0) (3.0)
31,7 (2,2)
27.9 (0.6)
27.4 (0.3)
37.5
0.2)
[sak
(16)
Oy)
22.4 (0.5)
29.4 (0.9)
4
toa
an
25.0 (2.00)
201.0)
14.2 (0.6)
27,.240,5)
34.9 (UH)
22.0 (0.0)
| (OLS)
ta
274
(a) Juvenile blue-throated wrasse (5m depth)
S.A, SHEPHERD & J. B. BROOK
(b) Juvenile black-spotted wrasse (Sm depth)
20 5 15
15 J
T 10
f i
1
o t ; Ge 5
5
t Ee !
0 TT T T —_—__—_—____@ 0 “ih — Hee —_—$#- T 1
0 1 2 3 4 0) 5 10 is 20
Exposure index Depth (m)
(c) Adult blue groper (d) Magpie perch
25 8
2 6
2 %
ge 15 g 4 i
i } : b
a 1 + 2 $
: ®
0.5 0) a T T —i
ot 0 1 2 3 4
0) <4
0 5 10 15 20 Exposure Index
De
ph (rn) 0 5-10m @ 15-20m
(e) Herring cale (1) Sealyfin
10 5
84
B 64 f
§ 44 t =
21 t cS
=
0 + = T te a te
ie) 5 10 15 20 0 5 10 15 20
Depth Depth (m)
Fig. 4. Plots of mean densities of six species of fish (numbers. 250 m>) vs depth or exposure index.
a: juvenile blue-throated wrasse, NV. fe/ricus (5 m depth only): b: juvenile black-spotted wrasse, 4. macu/anis at hl = 2:
ce: adult (> 60 cm) blue groper, 4. gouldii; d: magpie perch, C.
MIRTVIPeS,
e: herring cale, O. cranomelas; f Victorian scaly fin, P. victoriae.
5
10 m depth (0); [5 — 20 m depth (+);
REET FISTILS OF
Mean density of blue-throated wrasse
Mean
Hie. A plot of meat density oF the blie- throated wrisse
Voremveny (nuihers. 2501 vs depth Cap and expisire
mmdex. Zero valties indie enther That ne suimples were
liken (ETed ab VS depthi a chase dept
combinations were dbsent anh far ba 2A depth.
ferritories extending from a few te tens of metres.
Nhey comprise herbivores. henthie catnivares: and
ombtyores,
Croup S: cryphie or civeedwwelling species, active
mainly at bight. They are planklivores or carnivores
The 55 lish species reworded by us on the (riseets
ate listed by group in Table 2 in approximate order at
decreasing fish sige with date on Meal densities 1
vecupied transects. an strellered (GE 0 2) and
exposed (LI 3 4) coasts. and mean sives and
percentage of occupied transeets. | ength-frequeney
distributions, i) some cases ageregated for partioulir
depths and His. of the commoner species aie shown
in hig. 3, Only iwo species with -S0"% oeeurrence in
Iranseets, the blue-throwed and the black-spotted
wiasses. NV, feiews and ol macilaris, showed: i
significant difference in overall density on the
exposure pradient (hible 2),
The overall mean density of fishes was 125.3 per
250 me. (he. 0.5 on). of which 45% comptised
Groups 3 and 4, the benthwe teeders, and 46.7%
Groups Land S. which feed nm the water colin,
Nerbivorous species (excluding leatherjaekets.
whieh may browse small amounts of algae), a subset
of Groups 3 and 4. comprised 83% oF the tot
humber ot fishes (Table 2).
Juvouites
Juveniles of a few species apparently recruited
onlo nearshore recls and were Found ins restricted
parts Of the depth-Ll gradient,
Ble proper juveniles (<20 cm), a. would, were
few and seen only at S mi depth (mean density 0.28
se O48) Blue-throwed wrisse juveniles, i,
meuious,, Were restricted to depths of 3 im or less,
exeep at sheltered sites (710) 2) where they were
also abundant (in depth (bag. 46). At Sin deprls
SST PROASC TS ESE DS in)
their abundance declined sianitieantly (pe .e7,
P0005) with erasing exposure (Migs te. 4a). In
contrast, juveniles OF the black-sputed wrusse, ob
macilelus, Were tare at exposed sites (EES 4) CF ig,
¥f). and al sheltered sites (1 0 2) increased
siunificantly (rm O.d7: PeQ.05) io density with
inereasing depth (Figs 3e, 4h). ‘The juvenile mart
wrasse, OQ, Hineohitus, was palehy, and almost
entirely restricted to 10 20 mt depil at FL 3 with &
incan density OF TLKY (se. (34) (Pi. 3h). Juveniles
Of (he magpie pereh, CL aigripewe (Fig, 30), senor
wrasse. 2 daticheiy (rin 3d). and sealylin. &
Weforine, were only found in depths of S mor Tess,
Whereas juveniles of the moaonhelter, 7
sevfascretii (Vik. 3q), Were seen only ut LO mr depth
abbb 0 Spand juveniles of the western Gila. C,
euriosus, only ab (5 20 rm at WE > 2 (hig.ah.
Juvenile magpie perehy Co aigeipes. and harher
perch, CL vaser, were few and rarely seen.
Prst-fveailes care laults
GROUPS 1. 2 (PEL AGIC/MIN-WATER SPPCIESS SANDY
HOTLOM SPECIES)
The commion species, sea sweep, 5. aeqidpiinis,
and barber perch. Co feser, were seen in small to
lirge groups at wl depths und exposures. Ao few
species showed apparent preferences for particular
exposures. Plus, silver ifevally, Al dente, and
bulterAy perch, ©) /epidoplera. were seem only il
reduived water movements. vither on sheltered voasts
or deep (20m) on exposed coasts; (wo hire schools
(meal sive 100) in Petrel Bay aceounted for the high
densities at ht 2. (Table 2), Che long-finied pike.
D. lewd. oveurred only on exposed shares (FT >
y 4).
Old wives, Eo ariutis, were in low abundance at
al] depths und exposures (mean density 0.8 s.c. 0.2).
except for five schools (niean size 32.3 se, 3.4) 10
Iki, Ub 0-3,
Iwo species Were seep only if festrigted
geouraphic locations; the ludermek, Cr /etevinpicdetee.
wl westertt St Praners (and the blue morwone.
vefencionnest, in castem Peel Bay. Other species
were toa uncommon to draw viay mferenices abour
their distribution patterns,
GROUT S (ABOVE-CAROPY, RELP SP WELLING SELCIES)
Reel habiiats al the study sites were dominated by
species in this group. Some home-srunging species
(hdear ered L982, Barrett 1908) tended ta weeue a
uniform densities ut all exposures. lxainples were
the sealvtin, / vietonice. herring cale) ¢yvemomeliy
(his, Jin). and western talina, ©. evirvoses (hi. 3 1),
whieh all typically occurred i pairs, The abundance
ofthe blue erapern ft wane (Fie, 3a), changed wall
Jeplh bur oot exposure: While sub-adulls (20 60
om) Geeurred at ull depilis unl exposures. Gnean
27h SOA, SHEPHERD & lB. BROOD
density 0.5 $6 0-1), the density oF adults (=60 cm)
Inereased siamificuntly (eeQ45, PO,00.) with
increasing depth (hig. 4e): mean adult density was
O.5 (se. U1).
The abundayee of past-juvenile (-10 cn) blue
throated wrasse, WN, fedicws, (he most abundant
species recorded. declined significantly (re O45:
POO) with depth (Vig. 3) at all exposures. The
mean femalemale sex ratio declined significantly
(me O.489, POOOOOT) from 12.221 ab S a depth to
5.05) al 20m.
Post-juvenile muach wrasse. OL dieelany (bis. at).
were “bundant only at 200m depth. Tere mean
density per Irinseet was 8.7 (sc. 1,3) compared (6
(se. 02) arall other depths (Fige 3h): the differenee
Was SIRNA nt (bE 3.9. PO,001), Other wiasses were
Uncommen or restricted geouraphically or in depth,
‘The wrasses, pretly polly, 2D. aureiticotiy. browne
spolled wrasse, Ao peei/eis. and rosy wrasse, 2
pyiacidis. and the sereamd, western swirrali. al.
ver Fa fiay. (Oxeept fara single recordaat 3 ma Uh = 4),
were only seco on reel near the sand line, and the
snakeskin wrisse / aavustipes, only in shallow
water (© 10m) at breeling f.
Nhe magpie perch, CL aieripes (Vie. Sno), was in
Jow abuinditice Cried density, 10's.c. Ot) i extrenie
sheller (1), bul common elsewhere, The species
showed a curious reversing pattero of abundinee: in
felon teeexposure ut PL A AL Shallow depths
(= }0 mm) density declined significantly Gy sth,
P O,000T) wilh mmereusing exposure, bul in deeper
water (LA 20 no) ineressed significantly (a7 02738:
PM O.005) with inereasiny exposure (Pie. dd). The
hwo most common leatheriekets, yellowestri pred
featherjackel Wl flavalinealate (hig 3p), und
horseshoe luatherjacket. AX Aippoerepis (hi. 3h.
decurred at all depths und exposures, and usually i
pies Lhe former was rare dkeatrenie shelter (al 0)
and below 10 or depth (mean density 0.7 s.e, 0.3). bul
abuotine’ clewhere (mean density a seo) The
lation was rire i extreme exposure (PE 4). bul
commun elsewhere. The third-most conor
lenWerjaeket. stars and stipes leatherjacker, 47,
Wid, WAS restricted to strom exposure (EL 3
fot S10 prdeptl, except for one sighting elsewhere,
‘The dusky monweng, 2. aigeicars, wis seen only 1h
Potrel Bay, and conversely. the western foothaller VY
HAdighiy. as AlMbst Enticuly restricted to exposed
coasts (FL AS. The vebra lish, Ge 2ehredt, (ig. 3)
Was “lNOst omnipresent an low numbers (nea
density per Gnseet 4, bse, 1 Ap exeept fortwo like
achools (meun sive 70) at S malepth at ht 4, The
silver drunmnen AO xvedievermes, vecurred ul ull
depths and exposures iT small to linge proups-
Cinut 4) SUERECANDPY REISE EEE TSG) Stee thso
The bluck-spoted wrisse, dl igedtaiis (be Wel),
was yp low density atall depths ynd expostres (mean
densily (8 sc. 0.3), exceptar hth OQ) tat ld 20
m where mean densities (7.3. sa, 17) were
siunilicumtly Higher (bobh3; POOME) The senator
wise. Ho laticlavias (Pig, 3d), was solitary oF if
pairs, ind the moonhwtler, 7 sew/use turn (P12, Sq),
Was usually in small groups: neither showed any
puliern along depth or exposure wradi@nts,
Scalvtin, Fo vietoriae. and herring ole, 0
cranamelas (Vig. 3m), were most abundant al Som
depth and both declined significantly (r 0 32:
PALOS th euch cusey with depth (Pig. 4e. The
abypdines of herring ele CL cheonelas, was
sive ticantly correlated! with Acdfoaier biornass
(r O30) P&0,05),
GROUIS (CRYITIO ANELOAVL-DWEL LING SPEGHS)
The two species OF Tubulish (ris. apy were bolte
lirgely cestrickal te 4 12m depth range. hil al
diferent exposures. ‘Che southern hulufish. 7
cadiinucilatt, Was Most abundantatlls | 2 and
the Nourlinga hulafish, 2 vearcimee, il ble % 4
(Table 2) nearentranees lo caves neunder overhangs.
Schouls were monospeciie. except olf Smooth b.
where mixed sehouls were present.
Discussion
Traphic Oeeanixetion
Our teeoenlion of evolagion! groups based on
beliwviowr and) troplie categories is am over
simplification, First. the diet of some species vhanges
With size (@u. some juvenile herbiveres may feed on
amphipods) (Hor 1989}; second, some species such es
silver trevally, Po ifenien may swileh belween benthic
ane id-watler Teedig (ktissell P9K3): ane vied. many
Species 00 simall extent transgress feeding cutesanes
Nevertheless, (ie gcoups are a seta coneeptial atl oy
defining the strneture of fish assemblies ane for inner
site Fomparsons. The categories we use me broadly
similar i those used by tlurmelin (198%) for the
Meditecrinean, although fish in dierent cutepormes i
wun wales probably mile tere than oe the
Mediwruncin due to the bonmogenising offeer al
siroviges water movement on subtidal fabiti. on
SuuiHer Sustain coasts (SAS. pers, obs.)
The so-culled ‘offshore islind effeet® (Chiat or af
JOS iy characterised by a reater abundance of fot
species and andividuals compared swith mennhind
coasts. “Totul mean densities. af fishes (-05 m=)
which we fave fecorded, ve fear (he upper limit ot
(hose recorledk by Briamnen ef af (19886) for the
Investiguor Group of Tslands: te Lhe: caster Creal
Austratian Gigi (ramge (21 0.6.07). ane similar to
Those oF Barret) & bdwar (1993) forthe Kent Greap
oy S3ass Stewat (—O. 3 my und Russell (1877) tab Croat
|p northern New Zealand (up i). One the
RULE FISHES OF 5T PRANCIS [SLES a7F
soul-casterd Ausibalian monilaid cous fish
denmaries are much lowen tn fire eastern Victoria
(Cape tlowe to Gabo Lo mea densities were Lo.
me (hilinunds ee! 2007). in central Vietorn thes:
nuiged from G03 0,14. m2 (Edinuiids ep ef 2000,
Vdmones 2002) and in northern Tasmania from 0 14
Ab2.- (Barren & Edgar 1993> Barren & Wileos
A001). The Tinestone patch reefs of south wes
Wester Australia tad higher densities of 0.8 in|
(Howard 1989), but in thal study the fish mainly
shivered in the patel reefs cod leah i stihoundiie
adaurasses Overall, the St Francis Isles rank biel, in
terns of Tish abundatice. with other eek tomperate
Australisian revions,
Acomparative examinition af the ecologic araphic
groups ol lish Qlones PQs) ait varinus sites in
Australasia stiggests the sotiree of this richness. dy
Russells (1977) study im New Zealimud. open water
feeders. with a lage subtropical compenenr.
comprised 7A" amd benthte feeders 13% ol
individuals, Whereas On the Tasmanian mintand
Open waler feeders averaved only 42% and benthhe
feeders Sh" Of the total (Barret) & Edgar 1993).
Cunversely m tie Rene Group oper water feeders
comprised --70l, due largely to tie high abundance
of barber perch. Co raver. Open water leeders
vomprised w high proportion (G7 — 72%) te eusler
Victoria and Wilsons Promontory (which bes a fish
fauna similar lo that of the Kent Gronp). but i lov
proportion (12 LS) elsewhere witht low overall
densities. The Isles of St Franeis, with nearly equal
abuodanecs of open water feeders and beothic
feeders, are thus relitively Tigh in both trophic
froups, Tt js apparenr that much of the sariation iy
abundance between lovalions in Australasia is due to
Uittrenves in numbers of open water feeders. cathe
than to benthic feeders. Why is this so?
Offshore iskitids aie swept by ocean currents aiid are
somelimes rezions of local upwelling. se thot locol
iskind reels can caplure the production of large
SUTrOLINIAY Geewmie areas (sec Okey of at 2004). The
enhanced Import of carbon net anly siipparts ss
Mereascd Duinber al Open avaler feeders, but alse
iereases sceondiury aad tertiary production ty the
resident Hund ofrect® (Menge ef af 1997), Thus, our
Groups 1. 2 und 3. represenboy plunkivores,
eu Tvores athel Saft bottom minyrants, depend kingely
on carbon imports fram the surrounding seas ur
adjacent sederasses and sumdy bottoms. whereas benthic
feeders (Groups 3. 4) depend on the produery iy of
local reels, albeit enhanced to some extent by oveunie
unporls (Bray er af 1981), The often Siceply sloping
shores of of Shore islands may also favour planktiveres
us they pray ide some shelter close to shore
A subset of benthie feeders, the herbrvares. has
recenved mere alteniion than other groups if
Atistralisian, Jones & Andrew (1990) reeotited 19-
44"y al fishes as herbivores an foun sites Ta soul
custem Austraha und nerthern New Zeulund
whereas Russell (1977) reeanled only Sy as
herbivores. and. Barrett & Edear (1995), Barrett &
Wilcox (2001) and Edbyuieds (2002) and Gdorids ev
ah (2000. 2007) 5-10". Tor Vielonon. northern
lasmaniin and Bass Strait Pshwd sites, and = 1% Lor
southern ‘Pasmuni, Gur mean value of &%_ os
therefore about were for leniperte reefs, aid
suggests that herbivores do not contribute fo the
ollshore island efleer.
An alternative. non-ckelusive explanation for the
“off-shore isha etloce is that lishing is much mare
Intense on mainkind coasts ane reduces the
ubundonce of fishes on coastal reefs At present
Nuyis Archipeliwo ts lightly fished with an ainda
luke of - 5 ¢ Of blhe-thradted wrisse (A. Suter pers,
comm.) Reerealional Gard tow small extent spear)
fishing is generally common om mainiand coasts and
fargets reef dwelling earmyores und same
ommivores. butas-yet we have no date on abundance
of reel lishes of the inlensrby of recreational fishing
on adjacent maintend coasts for evaludiiny thes
allecnatiye bypothests.
Species Abnudanee Paltorns
While mony texts on southern Australian fishes
(see above) waive qualitative mformation. on depth
aid exposure preferences ol fuveniles und adults,
this is the first saeh quantitatiy analysis for southern
roeky guasis. In particular our dala on juyentle and
adult abundances of the numerous species in the
fumily Luibridwe sumeest mierohabitat partidioning
between then, although we ainnat strictly
distimgurst belween hubilal preferences and
differential survivu Of randomly setting juveniles
(sce Connell & Jones 1991). Juveniles of the blue
throated wrasse, A, fetrrens. the blaek-spetted
Wess. fo amcufotis. und the meer wrasse. 0.
fincofats. cach oceupied diferent parts of the depth
exposure gradients. The ovcurrence of othe
Wedsses ciTly db or near the sandline may reflect their
use oF reefs fap shelter aiid) gdjacent sandy o7
Seagrass Habwars for feeditie (sce Howard Jos:
Rdgar ef ef, 1989). Our limited deta on the shallow
habial of juvenile blue groper, a. gaduit, supports
our other survey Imumys (unpublished data) that this
species reeruits imu very Shallow (= 2 m depth)
rocky habit On sheltered cousts. not sampled in this
slidy. Size-lrequeney gy abundayive dita (Fig. 3a-e.
bigs 4u. 5) for the blue-throated wrasse ind the blue
groper, und changin ses ratios lor the formes
species. suggest that iheic juveniles reeruit: inte
shallow. mainly sheltered. inaeroadzal bubitars. cd
With Mercusing sive migette to adjacent deeper
water. Differential juvenile and adult habitats are
well known dor many fishes (Gillanders er af 2003).
178 S A SHEPHERD AB. BROOK
EXpkinations of species’ abundance patterns on
depth and exposure gradients for other species are
speculative although some principles are knowo, As
noted by Ross (T9860), when fishes co-exist in un
urea. Food und then habitat are the resources. most
commonly partitioned between them. Thus, the
diferential occurrence Of funetionally related
species. sueh os leatherjackets and hulatishes
respectively, at particular depths and exposures may
be die to habitat partition between species, its we
live Suggested tor some wrasses. Changes in
abundance of species with depth or exposure oy
reflect changes in abnndanee/presence of its
preferred food, eg. the herring cale and tts preferred
diet. Evklonia, (see Andrew & Jones 1990: Jones
1999), changes in habilal cg. magpie perel (sve
Connell 2002) Curley efaft 2002), or in Lopographic
complexity eal The sealytin. which ts dependent on
the presenee of shelter holes (see Norman & Jones
1984; Lincoln Smith & Jones 1995),
Overall, as shown by our speculations,
understinding of the ceology of most temperate reer
fishes is still primitive. and much research needs ta
be done if marine sanctuaries are to be optimally
idvntified und sited within a inidniged minine
ecosystem,
Acknowledenents
The expedition was fuoded by the South Australian
Research and Development Institute and Austrabiis
Geopraphiv Soviety. We thank Rob Lewis for
making the expedition possible, Anthony Cheshire
for his strong support, and Sue Murray-Jones who
bore much of the organisational load of the
expedition, Nick Turteh assisted wath the fish
censuses. Allin Sumer pave information on
commercial fishing, and helplil adview about the
presenee of white sharks around Fenelon and
Masillan Is, Especially we thank New Chigwadder,
the master of Ab Neerin. for his punetilious attention
to diversy Bran Davies and Rick Jumes tor
skipperiny support boats for divers, and the erew of
Neerin lor their anstintiis help amd good-hurnpur
M. Edmunds. &. Gillanders and GJ, Gdgar made
valuable criteal comments on the muuuseript,
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141
ROYAL SOCIETY OF SOUTH AUSTRALIA INCORPORATED
Patron:
HER EXCELLENCY MARJORIE JACKSON-NELSON, AC, MBE
GOVERNOR OF SOUTH AUSTRALIA
OFFICERS FOR 2002-2003
President:
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