Soft substrate macrobenthos of Fiji's Great Astrolabe Reef

Safi subslrate macrobenlhos ofthe GAR /agoon. Noies er Doc. Océanogr. /996,46: 17-46 17

Soft substrate macrobenthos of Fiji's Great Astrolabe Reer lagoon. List oftaxons, densities and their biomass

by 1. Clavier"', P. Newell**, C Garrigue*"'''', B. Richer de Forges"'*"', A. Di Matteo"'*'"

***

*"'*

Centre ORSTOM, B.P. 70, 29280 Plouzané, FranceThe University of the South Pacifie, School of Pure and Applied Sciences, P.O. Box 1168Suva, Fiji.Centre ORSTOM, B.P. A5, Nouméa, New Caledonia

Abstract

During the Jornt Fijian-French ASTRü cruiseconducted in April 1994 in the Great Astrolabelagoon, the soft bottom macrobenthos \Vasquantitatively investigated at 25 sampling stations,using a 0.1 m2 Smith-McIntyre grab. At each station,sediment was sampled with a total 1 m2 area (10replicate grabs) and washed through a set of 20, 5and 2 mm sieves to retain Oora and fauna. A total of207 taxa was identified. This paper presents methodsand raw data obtained from the study expressed foreach taxon as numbers of individuais, dry weightand ash [Tee dry weight pel' m2

.

Résumé

Au cours de la mission franco-lidjienne réalisée enavril 1994 dans le lagon du Grand récif del'Astrolabe, le macrobenthos des fonds meubles aété échantillonné quantitativement sur 25 stations, àl'aide d'une benne Smith-McIntyre. Sur chaquestation, le sédiment a été prélevé sur une superficietotale de 1 m2 (10 coups de benne) et passé sur destamis de 20, 5 et 2 mm pour isoler la flore et lafaune. Un total de 207 taxons a été identifié. Leprésent document regroupe un exposé des méthodesmises en oeuvre et une liste des résultats bruts issusde l'étude. Pour chaque taxon, ces derniers portentsur le nombre d'individus, le poids sec et le poids dematière sèche sans cendre.

1. Introduction

Quantitative studies on the benthic fauna of thesediments behind coral reefs are surprisingly sparse,and no such studies have previously been made inFijian waters. The Great Astrolabe Reef and Lagoonhave been the subject of a baseline study (Morrisonand Naqasima, 1992) but this did not include thefauna and flora of the lagoonal sediments,concentrating limited analysis and collectingresources on the reef (Naqasima and Brandy, 1992).

Quantitative studïes on the marine benthos of softsubstrate have been made in the South West Pacifie,

centred on the work of the üRSTOM team based inNouméa, New Caledonia. These include work on theSouth West lagoon of New Caledonia (Chardy et al.,1988; Chardy and Clavier, 1988), ChesterfieldLagoon (WNW of New Caledonia, Clavier andGarrigue, 1990) and Uvea Lagoon (Loyalty Islands,NE of New Caledonia; Clavier et al., 1992).

Sampling soft sediments has been reviewed byHartley and Dicks (1987) and the methods used inthis study are described below. The protocolfollowed is the one that has been developed by theORSTOM team operating from Nouméa, NewCaledonia, and was followed in this study tofacilitate comparisons between this and the carlierwork done in New Calcdonia.

2. Materials and methods

The study focused on subtidal sedinlents.Macrobenthic communities were sampled at 25 siteslocatcd between 17 and 43 m depth over the lagoon(Table 1 and Figure 1). Sampling was carried outwith the RV 'ALIS' in April 1994.

If:c

~r;i( •. "

Figure 1: Location of sampling stations

Soft sllbslrale macrobenthos ofthe GAR lagoon Notes er Doc. Océanogr. 1996. 46: 17-46 18

Macrofauna and macroflora were sampled using a0.1 ml Smith Mclntyre grab weighed down with anadditional 60 kg lead ballast (Figure 2). Thesampling unit was a 1ml area, i.e. ten 0.1 ml grabs.The total collected volume of sediment was about 601. The boat was moored with a bow anchor and wasfree to swing under the influence of wind. Theprobability of a bite coincidence between sampleswas consequently very low. The samples from thesame station were mixed and passed through 20, 5and 2 mm stacked sieves. On board, organisms wereseparated from the substrate, sorted by majortaxonomie groups and preserved in 10 ~/;, fonnalinneutra1ised with borax.

Figure 2: The Smith-Mc-Intyre grab

In the laboratory, taxonomie detenninations werecarried out as precisely as possible using theavailable literature. The results per station have beenexpressed as the number of individuals per m2 foreach identified taxon for macrofauna. Dry weightswere measured after oven-drying (60°C) untilconstant weight and the ash weight by fùrtherheating at 550°C for 3 hours. The ash free dryweight is the difference between these two values.The biomasses have been expressed in grams of dryweight and ash free dry weight per ml formacrofauna and macroflora. Taxonomie biomasseshave been summed to obtain the total macrobenthicbiomass per station.

Table 1 : Depth (m) and position of the sampIingstations

N Depth Latitude Longitude

31 18°43.50' S 178°29.67' E

28 18°43.49' S 178°31.75' E

22 18°44.68' S 178°31.70' E

39 18°44.57' S 178°29.46' E

17 18°45.19' S 178°31.25' E

38 18°46.1I'S 178°29.53' E

43 18°46.09' S 178°32.73' E

37 18°46.97' S 178°33.84' E

35 18°46.90' S 178°31.75' E

1 37 18°46.99' S 178°29.18' E

1 39 18°48.81' S 178°29.19' E

1 29 18°48.80' S 178°32.10' E

1 34 18°48.28' S 178°33.84' E

14 27 18°49.48' S 178°34.72' E

15 29 18°49.46' S 178°33.14' E

16 32 18°49.48' S 178°31.83' E

17 34 18°49.57' S 178°29.50' E

18 34 18°50.77' S 178°26.64' E

19 31 18°50.94' S 178°31.86' E

20 34 18°50.71' S 178°33.85' E

21 30 18°52.14' S 178°31.9TE

22 36 18°51.64' S 178°29.50' E

23 31 18°48.43' S 178°30.84' E

24 32 18"49.83' S 178°30.50' E

25 31 18°42.66' S 178°30.97' E

3. Taxonomie list

3.1 Phytobenthos

CHLOROPHYTAAvrainvillea amadelpha (Montagne)Gepp & Gepp

2 Avrainvillea sp.3 Caulerpa bikinellSis Taylor4 Caulerpa brachypus Harvey5 Caulerpa racemosa var. clavifera

(Turner) Weber van Bosse6 Caulerpa sertlilarioïdes (Gmelin) Howe7 Caulerpa taxifolia (Vahl) C. Agardh8 Caulerpa llrvilliana Montagne9 Halimeda cylindracea Decaisne

10 Halimeda discoidea DecaisneJ 1 Halimeda incrassata (Ellis) Lamouroux12 Halimeda macroloba Decaisne13 Halimeda opuntia (L.) Lamouroux14 Tydemania expeditionis Weber van Bosse15 Udoteaflabellum (Ellis & Solander) Howe16 Udotea glaucescellS Harvey17 Halicystis sp.

Soft substrate macrobenthos ofthe GAR lagoon. NoIes er Doc. Océanogr. 1996, 46: 17-46 19

SIPUNCULIDS85 Aspidosiphon sp. 186 Aspidosiphon sp. 287 Aspidosiphon sp. 388 Sipunculid indet. 189 Sipunculid indet. 2

18 Valonia aegagropila C. Agardh19 Valoniajàstigiata Harvey

PHAEOPHYTA20 Dictyota sp.

CYANOPHYTA21 Cyanophyceae indet.

3.2 Zoohenthos

SPONGES22 Sponge indet. 123 Sponge indet. 224 Sponge inde!. 325 Sponge indet 426 Sponge indet. 527 Sponge indet. 6

CNIDARIANS28 Edwardsia sp.29 Trachyphyllia geoffroyi (Audouin, 1926)

PLATYHELMINTHS30 Platyhelminth indet.

NEMERTEANS31 Nemertean indet

NEMATODES32 Nematode indet.

65

66676869

7071727374757677

78798081828384

Pista sp. cf. austm/is Hutchings & Glasby,1988Poecilochaetus sp.Po/ydora sp.Po/yodontes sp.Prionospio (Aqui/aspio) aucklandica Augener,1923Prionospio (Aqui/aspio) sp..Prionospio (Prionospio) lineata Imajima, 1990Prionospio sp.Psammo/yce anUpoda (Schmarda, 1861)Rhinothe/epus sp.Samytha sp.Samythella sp.Sigalion mathi/dae Audouin & MilneEdwards, 1832Spio sp.Sthene/ais /aevis Kinberg, 1858Sthenelais zey/andica Wiley, 1905Stheno/epis yh/eni(Malmgren, 1867)Streb/osoma sp.Sy//is (syllis) sp.Terebellides stroemi Sars, 1835

ANNELIDS33 Amphicteis sp.34 Arabella iric%r (Montagu, 1804)35 Armandia sp. cf. leptocirrus (Grube, 1878)36 Chaetopteridae indet.37 Chloeia sp.38 Cirriformia sp.39 Dasybranchus sp.40 Drilonereis sp.41 Euclymene sp42 Eunice complanata (Grube, 1877)43 Eunice sp.44 Eupo~ymniasp.45 Glycera sp.46 Goniada sp. 147 Goniada sp.248 Laonome sp.49 Leiochrides austra/is Augener, 181450 Linopherus sp.51 Loimia ingens (Grube, 1878)52 Lumbrineris sp.]53 Lumbrineris sp.254 Lysil/a pacifica Hessle, 191755 Lysippe sp.56 Ma/acoceros sp.57 Marphysa sp.58 Mastobranchus trinchesii Eisig, 188759 Nereidinae indet.60 Notomastus sp.61 Pareu/epis sp.62 PectinarÎa sp63 Phyl/ochaetopterus sp.64 Phyl/odoce sp.

LOPHOPHORIANS90 Phoronidian indet.91 Brachiopod indet.92 Lingu/a sp.

MOLLUSCSGastropods

93 Acteon virgatus Reeve, 184294 Atys cylindricus (Helbling, 1879)95 Cantharidus sp.96 Cerithidae indet. 197 Cerithidae indet. 298 Dentalium sp99 Lophiotoma sp.100 Ma/ea pomum (L., 1758)101 Nassarius g/ans Roding, 1798102 Nassarius sp.103 NaUca onca Rôding, 1798104 NaUca sp.105 Oliva carneo/a (Gmelin, 1791)106 Oliva miniacea (Rôding, 1798)107 Pupa solidula (L., 1758)108 Rhinoclavis aspera (L., 1758)109 Strombus fragilis (Rôding, 1758)110 Subcancilla inter/irata (Reeve, 1844)III Terebellum terebellum L., 1758112 Terebra sp.113 Terebra subu/ata (1,., 1767)114 Terebra undu/ata Gray, 1834115 Turridae indet. 1116 Turridac indet. 2117 Vexi//um sanguisugum (L., 1758)118 Vexi//um sp. ]

Soft subslrate macrobenthos ofthe GAR lagoon. Notes el' Doc. Océanogr. 1996. 46: 17-46

119 Vexil/um sp. 2 165 Podophthalmus nacreus Alcock, 1899120 Vexillum sp. 3 166 Portunus longispinosus (Dana, 1852)121 Vexillum sp. 4 167 Portunus sp.122 Viriola interjilata (Gould, 1861) 168 Psaumis cavipes (Dana, 1852)

Bivalves 169 Tetriasjischeri (A. Milne Edwards, 1867)123 Anodontia sp. 170 Tha!amita sp. 1124 Arca navicularis Bruguière, 1789 171 Tha/ami/a sp.2125 Arcopagia (Pinguitel/ina) robusta (Hanley, 172 Thalmitoides tridens (A. Milne Edwards,

1844) 1869)126 Barbatia sp. 173 Typhlocarcinodes sp.127 Codakia sp. 174 Galatheidae indet.128 Ctenodardia victor (Angas, 1872) 175 Paguridae indet.129 Fimbria jimbriata (L., 1758) 176 Alpheidae indet. /130 Gari maculosa (Lamarck, 1818) 177 Alpheidae indet. 2131 Laevicardium sp. 178 Natantia indet.132 Lima sp. 179 Palaemonidae indet.133 Lioconcha castrensis (L., 1758) 180 Pasiphaeidae indet.134 Lioconcha ornata (DiII"",)'nn, 1817) 181 Penaeidae indet.135 Lucinicae indet. 1 182 Processidae indet.136 Lucinidae indet. 2 183 Sergestidae indet.137 Modiolus phi/ippinarum Hanley, 1843 184 Parribacus sp.138 Pinna sp. 185 Callianassidae indet.139 Pinnidae indet. 186 Upogebia sp.140 Tellina rastella Hanley, 1844141 Tellina sp. ECHINODERMS142 Tellinidae indet. 187 Asterid indet.143 Timoclea (Glycydonta) marica (L., 1758) 188 Astropecten polyacanthus Müller et144 Vasticardium pulicarium (Rceve, 1845) Troschel, 1842

189 Brissidae indet.CRUSTACEANS 190 Brissopsis luzonica (Gray, 1851)

145 Stomatopod indet. 1 191 Laganum depressum Agassi7~ 1841146 Stomatopod indet. 2 192 Aiaretia planulata (Lamarck, 1816)147 Ampelisca sp. 193 Metalia sternalis (Lamarck, 1816)148 Melitidae îndet. 194 Holothurid indet.149 Arcania sp. 195 Amphiuridae indet.150 Calappa sp. 196 Ophionereidae indet.151 DaClyopilumnus sp. 197 Ophiopleron elegans Ludwig, 1888152 Hephthopelta sp. 198 Ophiuridae indet.153 Hexapus (Lambdophatlus) anfractus

Rathbun, 1909 CHORDATES154 Hexapus (Lambdophattus) sp. 199 Enteropneusta indet.155 Hexapus sp. 200 Ascidian indet.156 Leucosia sp. 201 Acranian indet.157 Macrophthalmus convexus Stimpson, 1858158 Micippa philira (Herbst, 1803) VERTEBRATES159 Nursia sp, 202 Callionymus sp.160 Pa/icus sp. 203 Gobiidae indet.161 Parthenope (Aulacolambrusj hepatus 204 Labridae indet.

(Adams & White, 1848) 205 Muraenichthys sp.162 Phymodius sp. 206 Scorpaenidae indet.163 Pi/odius sp. 207 Syngnathidae indet.164 Pilumnus sp.

20

Soft substrale macrobenthos ofthe GAR lagoon. NoIes er Doc. Océanogr. 1996, 46: 17-46

4. ResuUs by station

Number of individuals (Nb), dry weight (DW) and ash free dry weight (AFDW) in grams, are expressed per m'.

1STATION 1

21

Dentaiium sp 2Oliva earneola 1Oliva miniacea 1Vexillum sp. 1 1Anodontia sp. 1Laevicardium sp. 10Modiolus philippinarum 1Teliina sp. 6

CrustaceansPaguridae indet.

EchinodermsAmphiuridae indee 1Ophiuridae indet. 2

VertebratesGobiidae indet

TaxonAnnelids

Eupolymnia sp.Loimia ingensMarphysa sp.Nereidinae indet.Notomastus sp.Peetinaria spPhyllochaetopterus sp.Pista sp. cf. austraUsTerebellides stroemi

SipunculidsAspidosiphon sp. 3Sipunculid indee 1Sipunculid indet. 2

Molluscs

Nb

111112111

211

DW AFDW

0.0009 0.00060.0075 0.00440.0069 0.00520.0011 0.00070.0008 0.00050.0027 0.00040.0008 0.00060.0075 0.00380.0172 0.0108

0.0091 0.00690.0159 0.00440.0983 0.0236

0.0624 0.01381.3447 0.09875.9760 0.57600.2405 0.02150.2614 0.03041.1941 0.13450.2070 0.04370.5382 0.0651

0.0087 0.0061

0.0189 0.01080.0191 0.0090

0.0119 0.0085

Number of taxons: 25Number of individuals : 42

Soft substrate macrobenthos ofthe (JAR lagoon. Notes cr Doc. Océanogr. 1996. 46: /7-46

1STATION 2

22

Taxon

AnnelidsChloeia sp.Dasybranchus sp.Glycera sp.Lysippe sp.Pista sp. cf. austmUsPolyodontes sp.Prionospio (Prionospio) lineataSigalion mathi/daeTerebellides stroemi

SipunculidsSipunculid indet. 2

MolluscsNassarius sp.Oliva miniaceaPupa solidulaTerebra sp.Terebra undulataLioconcha ornataAlodiolus philippinarumTeltina sp.

CrustaceansCalappasp.Hexapus (Lambdophatlus) anfractusHexapus (Lambdophattus) sp.Hexapus sp.Paguridae indetThalamita sp. 1

EchinodermsLaganum depres.wmOphiuridae indet.

Nb

J2J11113

13

11111151

1242

12

DW AFDW

0.0049 0.00390.0146 0.01070.0006 0.00030.0005 0.00030.0068 0.00320.0098 0.00740.0083 0.00570.0056 0.00350.4230 0.2665

0.0391 0.0218

0.0965 0.02242.2658 0.20960.8794 0.15270.2973 0.02700.1327 0.02110.0892 0.07210.8568 0.13890.0170 0.0073

0.0420 0.02600.0681 0.04140.0680 0.03i20.0343 0.02020.0148 0.00540.0352 0.0146

0.1285 0.02190.0116 0.0058

Number of taxons :Number of individuals :

2851

Soft substrate macrobenthos ofthe GAR fagoon. Noies er Doc. Océanogr. 1996. 46: IÎ-46

1STATION 3

23

Natica Of/ca 1Oliva miniacea 1Pupa solidula 1Arca navicularis 1Laevicardium sp. 1Lioconcha ornata 4T'e//ina sp. 10

CrustaceansPortunus longispinosus

Taxon

AigaeHalimeda cylindracea

CnidariansEdwardsia sp.

AnnelidsLysippe sp.Nereidinae indet

SipunculidsAspidosiphon sp. 3

LophophoriansBrachiopod indet

Molluscs

Nb DW AFDW

27.8357 3.0890

0.0472 0.0185

0.0008 0.00060.0009 0.0007

0.0090 0.0048

0.5000 0.0200

0.0627 0.02962.7920 0.54540.0615 0.01180.1207 0.00670.0658 0.00583.1597 0.97401.3451 0.1362

0.1381 0.0642

Number of taxons : 16Number of individuals : 26

Sqft substrate macrobenthos ofthe GAR lagoon Noies er Doc. Océanogr. 1996, 46: 17-46

1STATION 4

24

Nassarius sp. 1Subeaneilla interlirata 2Terebellum terebellum 1Arca navieu/aris 1Barbatia sp. 1Laevieardium sp. 5Lioconcha ornata 3Modia/us philippinarum 45Tellina sp. J

Tellinidae indet. 7Crustaceans

Alpheidae indet. 2 2Ampelisca sp. 1Callianassidae inde! 4Hexapus sp. 3

EchinodermsAmphiuridae indet 2Ophiuridae indet. 11

Taxon

NemerteansNemertean indet

AnnelidsDasybranchus sp.Eunice complanataEunice sp.Glycera sp.Goniada sp.!Lysippe sp.Phyllochaetopterus sp.Poecilochaetus sp.Prionospio (Prionospio) lineataRhinothe/epus sp.Sigalion mathi/daeSthenolepis yhleniTerebellides stroemi

Molluscs

Nb

211114122311

41

DW AFDW

0.0068 0.0059

0.0056 0.00410.0015 0.00110.0018 0.00100.0006 0.00030.0008 0.00050.0019 0.00140.0064 0.00510.0018 0.00120.0021 0.00120.0736 0.044200034 0.00290.0042 0.00360.7604 0.4791

0.1524 0.06520.3436 0.02920.0300 0.00620.2405 0.02220.2678 0.03560.3224 0.04080.4147 0.02890.6456 0.21840.0199 0.00530.2860 0.1324

0.0242 0.01840.0002 0.00010.0503 0.03431.1161 L0790

0.0454 0.01490.0895 0.0130


Soft substrate macrobenthos ofthe GAR Il/gaon. Notes er Doc. Océanogr. 1996. 46: 17-46 25

TaxonNemerteans

Nernertean indetAnnelids

Eupolymnia sp.Linopherlls sp.Lysippe sp.Malacoceros sp.Nereidillae illdetSamythella sp.

SipunculidsAspidosiplton sp. 3

MolluscsTerebra subulataFimbria fimbriataLaevicardium sp.Lioconcha castrensisLioconcha omotaModiolus philippinarumTellina sp.Timoclea (Glycydonta) marica

CrustaceansDacryopilumnus sp.Pasiphaeidae indetPortunus sp.Stornatopod indet. 2

EchinodermsAstropecten polyacanthusLaganum depressumOphiuridae indet

ChordataAeranian indet

VertebratesGobiidae indet.

Nb

3

115111

1222212

8

DW AFDW

0.0168 0.0148

0.0008 0.00060.0005 0.00040.0112 0.00900.0014 0.00090.0011 0.00070.0008 0.0006

0.0159 0.0110

11.3325 0040730.1842 0.02280.4121 0.03890.3867 0.06457.4660 0.50320.2535 0.12270.3018 0.14340.0396 0.0243

0.0084 0.00520.0018 0.00170.0882 0.05460.0401 0.0267

0.2312 0.03400.0404 0.01830.0327 0.0159

0.0260 0.0219

00657 0.0559

Number of taxons:Number of individuals :

2743

Soft substrate macrobenthos ofthe GAR lagoon. Notes er Doc. Océanogr. 1996, 46: 17-46

1 stAT[Qj'(7

27

TaX(Jn

NemerteansNernertean indet

AnnelidsEuclymene sp.Lumbrineris sp.lPhyllochaetopterus sp.Prionospio (AquilaspioJ aucklandica

MolluscsCerithidac indet. 1Tellina sp.

CrustaceansA1pheidae indet. 2HexapuJ (Lambdophattus) anfractusMacrophthalmus convexusPodophthalmus nacreusStornatopod indet. 2

EchinodermsAstropecten polyacanthus

ChordataEnteropneusta indet

VertebratesCallionymus sp.Muraenichthys sp.

Nb DW AFDW

2 0.2144 0.1631

1 0.0006 0.00022 0.0007 0.00041 0.0005 0.0003:2 0.0218 0.0150

3 0.2546 0.02151 0.0736 0.0112

1 0.0074 0.00493 0.4085 0.23382 0.3654 0.18711 0.0399 0.02471 0.1603 0.1083

0.1489 0.0242

0.2325 0.1284

0.0080 0.00600.7100 0.5325


1724

Soft S1lbsfrate macrobenthos ofthe GAR lagoon. Notes er Doc. Océanogr. 1996. 46: 17-46

ISTATION 8

28

Taxoll

CnidariansE,a»'ardsia sp.

AnnelidsLysilla paciJlcaPhyllochaeloplerus sp.Po(vodontes sp.Prionospio (Aquilaspio) aucklandicaSamytha sp.Sigalion mathi/doeTerebellides slroemi


MolluscsCerithidae indet. 1Nassarius sp.Terebellum terebellumLioconcha caslrensisTellina sp.

CrustaceansAlpheidae indet. 2Hexapus (Lambdophattus) sp.Hexapus sp.ivfacrophtha/mus convexusPorlunus /ongistylosusStomatopod indet. 2

EchinodermsMaretia pianu/ata

Ophiuridae indet.Chordata

Enteropneusta indet.Vertebrales

Gobiidae indet.

Nb

1113523

2

113111

2

DW AFDW

0.0277 0.0135

0.0063 0.00400.0092 0.00740.0123 0.01070.0113 0.00780.0163 0.00980.0044 0.00280.0579 0.0365

0.0482 0.0220

1.0852 1.00590.3213 0.04930.4 152 0.18870.8847 0.12920.0425 0.0098

0.0061 0.00420.0347 0.01900.0805 0.12150.3671 0.16120.3549 0.21970.0239 -0.8245

0.1187 0.00750.0113 0.0057

0.3 129 0.1378

0.0291 0.0209


2837

Soft substrate mocrobenthos ofthe GAR lagoon. Notes er Doc. Océanogr. 1996, 46: 17-46

jSTATION 9

29

TaxonNematodes

Nematodc indetAnnelids

Dasybranchus sp.Glycera sp.Lysippe sp.Prionospio (Aqui/aspio) sp.Terebe//ides stroemi


CrustaceansHexapus sp.Stomatopod indet. 2

EchinodermsAstcrid iodet.Laganum depressumMarelia planulataMetalia sternalisOphiuridac iodet.

Nb

2

11116

11413

DW AFDW

0.0199 0.0179

0.0935 0.06830.0012 O.OOOS0.0006 0.00030.0047 0.00290.1059 0.0667

0.0220 0.0100

0.0191 0.01170.1706 0.1219

0.0204 0.00300.3629 0.04090.3617 0.0222

14.7044 2.192400168 00038


1525

Soft substrate macrobentllOs of the GAR lagoon. Notes el' Doc. Océanogr. 1996, 46: 17-46

1STATION Il

Taxon


NematodesNematode indet

AnnelidsDasybranchus sp.Euclymene sp.Linopherus sp,Loimia ingensPo/yodontes sp.Prionospio (Prionospio) lineataRhinothe/epus sp.Terebellides stroemi


MolluscsAtys cylindricusPinnidae indetTellina rastellaTellina sp.

CrustaceansAlpheidae indet. JAlpheidae indet. 2Leucosia sp.Stomatopod indet. 2

EchinodermsBrissopsis /uzonicaLaganum depressumMarelia p/anu/ataMetalia sternalisAmphiuridae indetOphiuridae indet


Nb

4

4122111

26

2

11312

10

Number of taxons :Number ofindividuals:

3172

Soft substrate macrobentltos ofthe GAR logoon. Notes er Doc Océanogr. 1996, 46: 17-46 32

ISTATION 12

Taxon Nb DW AFDWAlgae

Cau/erpa racemosa var.clavifera 0.3120 0.1490Halicyslis sp. 0.0230 0.0080Halimeda incrassata 0.8650 0.0640Halimeda opuntia 3.9880 0.2060Udotea g/auceseens 0.2090 0.0450Va/onia aegagropila 0.0960 0.0220

SpongesSponge indet. 2 1 3.3362 0.1744Sponge inde!. 4 5 7.4655 1.5818

AnnelidsChaetopteridae indet 0.0009 0.0007Eunice sp. 0.0008 0.0006Laonome sp. 0.0141 0.0109Terebe//ides slroem! 0.0253 0.0159

SipunculidsSipunculid illdet. 1 0.0952 0.0495

MolluscsActeon virgatus 1 0.2600 0.0232Natica sp. 3 0.3180 0.1224Rhinoclavis aspera 1 3.0029 0.1289Terebellum terebellum 1 0.7486 0.10 IIArcopagia (Pinguitel/ina) robusta 1 0.0300 0.0\02Ctenodardia victor 2 3.2533 1.1311Gari maeu/osa 2 0.4317 0.0635Gari squamosa 1 0.0091 0.0062Laevieardium sp. 15 3.7839 1.3467Lima sp. 4 0.1158 0.0515Lioconcha ornata 3 5.5766 2.4012Lucinicae indet. 1 1 0.0419 0.0312Madia/us phi/ippinarum 153 5.4497 0.6229Tellina sp. 10 0.8186 0.3350

CrustaceansAlpheidae indet. 2 3 00223 0.0163Callianassidae indet 2 0.2501 0.1864Hexapus (Lambdophattus) sp. 1 0.0101 0.0058Macrophtha/mus convexus 5 0.0632 0.0431Nursia sp. 1 0.0168 0.0104Palaemonidae indet. 1 0.0110 0.0093Palicus sp. 1 0.0672 0.0416Thalamita sp. 1 3 0.0408 0.0238

EchinodermsAstropecten po/yacanthus 2.2960 0.3807Marelia planulata 0.2687 0.0554Amphiuridae indet. 0.0063 0.0024

ChordataAscidian indet. 0.8046 0.1043

VertebratesGobiidae indet 0.0289 0.0202


Soft substrate macrobenthos ofrhe GAR lagoon. Notes er Doc. Océanogr. 1996. 46: 17-46

1STATION 13

33

TQXQnAigae

Caulerpa taxifoliaSponges

Sponge inde!. \Sponge indet. 2

CnidariansEdwardsia sp.

AnnelidsArmandia sp. cf. leptocirrusDasybranchus sp.Lumbrineris sp.2Lysilla pacificaPolydora sp.Polyodontes sp.Prionospio (Prionospio) lineata


MolluscsViriola interfilata

CrustaceansAlpheidae indet. 2Arcania sp.Callianassidac indct.Hexapus sp.Pilodius sp.Stomatopod indet. 1

EchinodermsOphiopteron elegansOphiuridae indet.

Nb

2

1212111

211111

DW AFDW

0.0190 0.0090

1.2109 0.43280.2167 0.0107

0.0645 0.0177

0.0002 0.00010.3756 0.27420.0006 0.00040.0241 0.01710.0006 0.00030.0108 0.00890.0016 0.0009

0.1136 0.0615

0.0650 0.0060

0.0227 0.01610.0105 0.00650.0133 0.00800.0240 0.01030.0252 0.01560.3816 0.2544

0.0060 0.00210.0402 0.0198

Number of taxons:Number ofindividuals:

2224

Soft substrate macrobenthos ofthe GAR lagoon. Notes er Doc. Océanogr. 1996. 46: 17-46

1 STAT}ON)4

34

Taxon

AigaeCaulerpa urvi/tianaHalimeda cylindracea

AnnelidsLoimia ingensNotomastus sp.Sigafion mathi/daeTerebellides stroemi

MolluscsMaleapomumNassarius g/ansNassarius sp.Natica oncaTerebellum terebellumTerebra sp.Vexi//um sanguisugumArcopagia (finguite/lina) robustaCtenodardia victorLaevicardium sp.Lioconcha ornataTellina sp.

CrustaceansHexapus (Lambdophattus) anjractusHexapus (Lambdophattus) sp.

EchinodermsMaretia planu/ata

ChordataEntcropncusta indct.

Nb

1225

111111132548

2

DW AFDW

0.1930 0.11909.4810 1.4330

0.0622 0.03670.0075 0.00630.0156 0.01330.1301 0.0820

0.3359 0.25150.8699 0.32490.1170 0.03480.0732 0.03460.3705 0.03310.0585 0.00542.7604 0.197700116 0.00540.2242 0.09570.5597 0.09690.8623 0.30980.4723 0.1825

0.0298 0.01210.0401 0.0215

00655 0.0067

0.0240 0.0110


2444

Soft subslrale macrobemhos oflhe GAR lagoon. Noleser Doc. Océanogr. 1996,46: /7-46

1STATION 15

Taxon

AigaeAvrainvillea sp.Caulerpa brachypusCaulerpa racemosa var. claviferaHalimeda opuntiaUdotea glaucescens

AnnelidsGlycera sp.Laonome sp.Loimia ingensPolyodontes sp.Prionospio (Prionospio) lineataStreblosoma sp.


MolluscsActeon virgatusNalica ancaPupa solidulaTerebellum terebellumLaevicardium sp.Lioconcha omataModialus philippinarumTellina sp.

CrustaceansCallianassidae indetPorlunus longispinosusStomatopod indet. 2Thalamita sp. 1

EchinodermsHolothurid indet

ChordataAscidian indet

Nb

112111

11137414

35

~DW AFDW

0.0100 0.00200.1230 0.06600.1720 0.07300.3700 0.01900.1480 0.0450

0.0006 0.00030.0133 0.01060.0576 0.03400.0085 0.00710.0018 0.001000032 0.0013

0.0277 0.0080

0.2525 0.02920.8402 0.06330.1752 0.01021.4233 0.19331.8816 0.77782.0265 0.40470.3088 0.15850.4641 0.0494

0.0161 0.01110.0160 0.00910.0237 0.01490.1405 0.0834

0.1901 0.0982

0.4956 0.0502


2636

SoJi substrare macrobenthos ofthe GAR lagoo!l. Notes er Doc. Océanogr. 1996. 46: 17-46

jSTATlüN 16

36

Taxon

AlgaeAvrainvillea amadelphaHalimeda incrassataHalimeda opuntiaUdotea glaucescens

SpongesSponge indet. 2


AnnelidsDasybranchus sp.Glycera sp.Polydora sp.Sthenelais zeylandicaTerebellides stroemi

LophophoriansLingula sp.

MolluscsCerithidae indet. 1Barbatia sp.

CrustaceansHexapus sp.Palaemonidae indetSergestidae indetStomatopod indet. 2Tetrias fischeriThaiamita sp. 1Typhlocarcinus sp.

EchinodermsBrissidae indetOphionereidae indet


2629

Nb

11115

12

1312122

DW AFDW

4.3470 0.92800.4440 0.05501.6680 0.12800.0400 0.0090

0.2768 0.0237

0.0530 0.ü451

0.0299 0.02180.0009 0.00050.0005 000030.0167 0.01560.1068 0.0673

0.1300 0.0780

0.1051 0.01021.3043 03270

0.0082 0.00390.1002 0.08430.0020 0.00190.0654 0.04140.0882 0.05460.0690 0.03970.0929 0.0575

0.0140 0.00290.0005 0.0001

Soft substrate macrobenthos ofthe CAR /agoon. Notes er Doc. Océanogr. J996, 46: /7-46

ISTATrON17

37

Taxon

AigaeCau/erpa taxifoUaDictyota sp.Ha/imeda macrophysaHa/imeda opuntiaVa/of/ia jasligiata

SpongesSponge indet. 5

AnnelidsCirriformia sp.Euclymene sp.EUf/ice camplanataGlycera sp.Leiochrides austra/isLumbrineris sp.2Phyl/odace sp.Prionospio sp.Sthene/ais /aevis

MolluscsCantharidus sp.Cerithidae indet. 2Te/lina sp.

CrustaceansAlpheidae indet. 2Alacrophtha/mus convexusPaguridae indetTha/amita sp. 1Thalamita sp.2Upogebia sp.

EchinodermsHolothurid indetOphiuridae indet


Nb

121121111

233112

12

3

DW AFDW

0.0050 0.00200.0470 0.018000410 0.00600.2770 0.01500.0400 0.0160

0.6586 0.3012

0.0003 0.00020.0021 0.00100.0018 0.00130.0011 0.00080.0015 0.00090.0006 0.00040.0052 0.00110.0006 0.00040.0018 0.0010

0.1300 0.01160.1950 0.01800.0082 0.0037

0.0019 0.00150.0188 0.01030.0710 0.03770.1024 0.06230.0065 0.00070.0104 0.0071

0.1098 0.06560.0073 0.0021

0.1590 0.1212


2933

Soft substrate macrobenlhos ofthe GAR /agoon. Notes er Doc. Océanogr. 1996. 46.' f 7-46

1STATION 18

38

Ta..'WnAnnelids

Dasybranchus sp.Euclymene sp.Lumbrineris sp.::'Po/ydora sp.Sigalion ma/hildae..')pia sp.Terebellides stt'oemi

SipunculidsAspidosiphon sp. 3Sipunculid indet. 1

MolluscsOliva carneo/aTerebra sp.Terebra undu/ataTurridae indet. 1Ctenodardia victorLaevicardium sr.Lioconcha castrensisLioconcha ornataModio/us philippinarumTellina sp.Vas/icardium pu!icarium

CrustaceansPaguridae indet.Parthenope (Aulaco/ambrusj hoplona/usPortunus /ongispinasusTyph/ocarcinodes sp.

EchinodermsMaretia p/anularaMetaUa s/ernalisAmphiuridae indetOphiuridae indeL

ChordataEnteropneusta indet.

Nb

1511215

11311621911

22

3122

2

DW AFDW

0.0015 0.00090.0054 0.00370.0006 0.00040.0006 0.00030.0043 0.00290.0012 0.00080.0909 0.0573

0.0238 0.01570.0118 0.0050

0.2158 0.02080.0846 0.00920.3808 0.04610.1170 0.01080.2036 003140.4515 0.05670.6349 0.16960.0287 0.00500.1216 0.02270.0102 0.00460.0621 0.0457

0.0329 0.01390.0283 0.01590.0270 0.01170.0650 0.0580

0.2215 0.01336.9581 0.68320.0375 0.01960.0114 0.0058

0.0735 0.0353

Number ortaxons:Number of individuals :

3361

Soft subsU'ate macrobcn/hos of/he GAR lagoon. No/es cr Doc. Océanogr. /996, 46: /7-46

1STATION 19

39

Taxon

AigaeAvrainvil/ea amade/phaCaulerpa racemosa var. c/aviferaHalimeda incrassataUdotea g/aucescens

NemerteansNemertean indet.

AnnelidsAmphicteis sp.Drilonereis sp.Euclymene sp.Loimia ingensLumbrineris sp.!Lysi/la pacijicaLysippe sp.Pareu/epis sp.Polydora sp.Siga/ion mathi/daeTerebe/lides stroemi


MolluscsTerebellum terebellum

CrustaceansAlpheidae indet. 2Galatheidae indet.Hexapus (Lambdophattusj anfractusHexapus (Lambdophattus) sp.Macrophthalmus convexusParthenope (Auiaeo/ambrus) hepatusPenaeidae indet.Stomatopod indet. 2Thalamira sp. !

EchinodermsMetalia sternalis

ChordataAscidian indet

Nb

2

11111242

142

13

9

2

22224112

2

DW AFDW

0.6610 0.17400.9900 0.50300.4140 0.04500.2490 0.0450

0.0552 0.0388

0.0009 0.00060.0543 0.03780.0010 0.00050.1101 0.06500.0007 0.00050.0203 0.00810.0018 0.00120.0091 0.00800.0146 0.01010.0095 0.00760.3560 0.2243

0.3593 0.0489

04880 0.2477

0.0173 0.01370.0373 0.108900694 0.04290.0778 0.04640.1920 0.08260.4076 0.13130.0141 0.00220.0848 0.06320.0115 0.0070

182651 1.4802

0.0123 0.0020

Number oftaxons :Number of individuals :

3675

Soft substrate macrobenthos of the GAR lagoon. Notes er Doc. Océanogr. 1996, 46: 17-46

1STATION 20

40

TaxonAnnelids

Dasybranchus sp.G(vcera sp.Goniada sp.}Lumbrineris sp. JLysil/a paciflcaLysippe sp.Poecilochaetus sp.Sigalion mathi/daeTerebellides stroemi

Si(lUnculidsSipunculid indet.

MolluscsTellina sp.

CrustaceansAlpheidae indet 2Hephthopelta sp.Hexapus (Lambdophattus) sp.

EchinodermsOphiuridae indet

ChordataEnteropneusta indet.


Nb

13211121

Il

214

3

DW AFDW

0.0245 0.01790.0079 0.00630.00\7 0.00120.0005 0.00030.0057 0.00320.0006 0.00030.0021 0.00140.0019 0.00110.1184 0.0746

0.1255 0.0130

00959 0.0279

0.0390 0.02460.0756 0.04680.3085 0.1419

0.0\07 0.0053

0.1693 0.1027

0.0300 0.0225


2137

Soft substrate macrobenthos ofthe GAR /agoon Notes er Doc. Océanogr. /996, 46.' /7-46

1STATION 21

41

TaxonAlgae

Halimeda cylindraceaSponges

Sponge indet. 5Sponge inde!. 6

AnnelidsDasybranchlls sp.Loimia ingemSamythella sp.Streblosoma sp.Terebellides stroemi

SipunculidsSipunculid inde!. 2

MolluscsSubcancilla interlirataCtenodardia victorLioconcha ornataTellinidae indet.

CrustaceansA1pheidae inde!. 2lvfacrophlhalmus convexusPilumnus sp.Thalamita sp. 1

EchinodermsHolothurid indet

VertebratesGobiidae inde!.

Nb

3111

DW AFDW

1.2560 0.1600

1.9348 0.28542.6146 0.2821

0.0087 0.00640.0166 0.00510.0007 0.00060.0087 0.00530.0245 0.0154

0.0720 0.0384

0.3639 0.07782.0577 0.51033.1727 1.05380.5892 0.0374

0.0302 002260.0053 0.00240.0147 0.00910.0146 00091

0.4250 0.2210

0.1123 0.0857


1920

Soft substrate macrobenthos ofthe (JAR lagoon. Notes er Doc. Océanogr. 1996, 46: 17-46

1STATION 22

42

TaxonCnidarians

Edwardsia sp.Nemerteans

Nernertean indet.Annelids

Lysilla pacificaPareu!epis sp.Phyl!ochaeloplerus sp.Prionospio (Priol7ospio) /inealaRhinothelepus sp.Terebellides stroemi

SipunculidsSipunculid indet 1

MolluscsCerithidae indet. 1Terebellum terebellumLaevicardium sp.

CrustaceansAlpheidae indet. 1Alpheidae indet. 2Callianassidae indet.Macrophthalmus CO'lvexusNatantia indet.Stomatopod indet. 2

EchinodermsAmphiuridae inder.Oph ionereidae indet.

ChordataEnteropncusta inde!.

VertebratesGobiidae inde!

Nb

312112

2

212

1111

172

DW AFDW

0.0240 0.0082

00238 0.0205

0.0221 0.01570.0024 0.00160.0011 0.00070.0009 0.00050.0097 0.00610.0141 0.0089

0.0571 0.0190

0.3587 0.03550.1314 0.03150.1590 0.0437

0.0096 0.007!0.0131 0.00860.0115 0.00710.4836 0.28720.0790 0.07220.0753 0.0569

0.015 ! 0.00300.0049 0.0015

0.0957 0.0430

0.0385 0.0272


2546

Soft substrate macrobenthos ofthe GAR lagoon. Notes er Doc. Océanogr. 1996.46: 17-46 43

jSTATION13

Taxon Nb DW AFDWAlgae

Caulerpa bikinensis 0.4950 0.2850Caulerpa sertularioides 0.0630 0.0410Caulerpa ta.x((olia 0.1310 0.0840Halimeda discoidea 13.1140 3.0080Halimeda incrassata 68.7700 7.5500Halimeda macroloba 0.2540 o.onoHalimeda opuntia 71.7900 3.6820Udotea glaucescens 0.8820 0.2210

SpongesSponge indet. 2 3 4.9770 0.4182Sponge indet. 3 2 0.1883 0.0770Sponge indet. 4 1 1.4781 0.3127Sponge indet. 5 1 0.5990 0.1339

CnidariansTrachyphyllia geoffroyi 117.0475 5.2972

PlatyhelminthsPlatyhelminth indet 0.0648 00545

NemerteansNemertean indet. 2 01317 0.1066

AnnelidsArabella iricolor 4 0.0228 0.0185Armandia sp. cf. leptocirrus 25 0.0755 0.0589Dasybranchus sp. 1 1.2093 0.8828Euclymene sp. 1 0.0012 0.0005Eunice sp. 2 0.0013 0.0009Eupolymnia sp. 1 0.0011 0.0008Leiochrides australis 6 0.0178 0.0130Linopherus sp. 7 0.0461 0.0420Lumbrineris sp.2 5 0.0009 0.0007Lysilla pacifica 3 0.0239 0.0104Prionospio (Prionospio) lineata 6 0.0238 0.0]64Psammolyce antipoda 1 0.0525 0.0176Syllis (syllis) sp. 3 0.0015 0.0012

SipunculidsSipunculid indet. 1 0.0091 0.0017

MolluscsStrombus fragilis 3 3.5612 0.2275Codakia sp. 5 7.1363 1.2397Ctenodardia victor 1 0.3424 0.0494Lioconcha ornata 1 3.8089 1.2570Modiolus philippinarum 1 0.3770 0.0863

CrustaceansAlpheidae indet. 1 2 0.1937 0.1322Alpheidae indet. 2 16 0.2312 0.1647Callianassidae indet 3 0.0664 0.0441Hexapus sp. 1 0.0112 0.0053Melitidae indet 4 0.0085 0.0065Micippa philira 1 0.8253 0.5109Parribacus sp. 1 0.0594 0.0396Pasiphaeidae indet 2 0.0402 0.0321Penaeidae indet 2 0.0336 0.0248Phymodius sp. 8 0.7288 0.3242Processidae indet. 2 0.1195 0.1027Stomatopod indet. 1 1 0.8412 0.5668Stomatopod indet. 2 10 0.9962 0.7036Thalamita sp. l 1 0.2016 0.1182Typhlocarcinus sp. 3 0.1646 0.0912

EchinodermsOphionereidae indet 0.0969 0.0521

Vertebrates

Soft .Iubsrrate macrobenthos of the GAR lagoon. /"otes er Doc. Océanogr. 1996, 46: 17-46

5. Summary of biomasses pel' station

dry weight Ash free dry weight

Station Plants Animais Total Plants Animais Total

1 0.000 10.052 10.052 0.000 1.080 1.080

2 0.000 5.550 5.550 0.000 1.147 1.147

3 27.836 8.304 36.139 3.089 1.818 4.907

4 0.000 4.920 4.920 0.000 2.295 2.295

5 0.000 20.959 20.943 0.000 1.599 1.584

6 0.064 3.569 3.633 0.008 0.869 0.877

7 0.000 2.647 2.647 0.000 1.462 1.462

8 0.000 4.282 4.282 0.000 1.370 1.370

9 0.000 15.904 15.904 0.000 2.563 2.563

10 0.000 7.631 7.631 0.000 1.981 1.981

11 0.000 24.506 24.506 0.000 9.324 9.324

12 5.493 38.664 44.157 0.494 9.109 9.603

13 0.019 2.608 2.627 0.009 1.163 1.172

14 9.674 7.090 16.764 1.552 1.762 3.314

15 0.823 8.367 9.190 0.205 2.016 2.221

16 6.499 2.464 8.963 1.120 0.876 1.996

17 0.410 1.494 1.904 0.057 0.650 0.707

18 0.000 9.906 9.906 0.000 1.366 1.366

19 2.314 20.670 22.984 0.767 2.679 3.446

20 0.000 1.018 1.018 0.000 0.491 0.491

21 1.256 12.722 13.978 0.160 2.828 2.988

22 0.000 1.631 1.631 0.000 0.706 0.706

23 155.499 146.317 301.816 14.943 13.630 28.573

24 181.678 25.309 206.987 23.313 8.575 31.888

25 0.525 1.308 1.833 0.080 0.377 0.457

Mean 15.684 15.516 31.199 1.832 2.869 4.701SE 9.500 5.888 14.172 1.100 0.697 1.643

46

6. References

Chard)' P. & J. Clavier, 1988. Biomass and trophic structure ofthe macrobenthos in the south west \agoon of NewCaledonia, Afar. Biol., 99 : \95-202.

Chardy P., C. Chevillon & J. Clavier, 1988, Major communitiesin the south-west lagoon of New Caledonia. Coral Reefs, 7 :69-75.

Clavier J. & C. Garrigue, 1990. Étude qLlantitative dumacrobenthos dans le lagon des îles Chesterfield. Listestaxonomiques, densités et biomasses. Nouméa. OR5TOM.Rapp. Sei. lech., sei mer, biol. mar., 59: 100 pp.

Clavier J., C. Garrigue, G. Bargibant. A Di Matteo, P. Hamel,M. Kulbicki ct R. Urbain., 1992. Etude quantitative dubenthos dans le lagon d'Ouvéa. Liste taxonomique, densitéset biomasses du macrohenthos, ATP, pigmentsphotosynthétiqucs et matière organique dans le sédimentNouméa: ORSTOM Rapp. sci tech., Sci Mer Biol. mar.,64: 72 pp.

Hartley J.P, & B. Dicks, 1987. Macrofauna of subtidal sedimentsusing remote sampling. In : Biological surveys of estuariesand coasts. J.M Baker & W,J. Wolff (cds.), CambridgeUniversity Press, Cambridge. 449 pp.

Morrison R.J. & M.R. Naqasima (eds.), 1992. Fiji's GreatAstrolabe reefand lagoon: a baseline study.: 1-150

Naqasima M.R. & M. Brandy, 1992. Marine Biologypreliminary studies of the Astrolabe lagoon, In : Fiji's GreatAstrolabe reef and lagoon : a baseline stndy. R.J. Morrison& MK Naqasima (eds.). Institute of Natural Resources, TheUniversity of the South Pacific, Environmental StudiesReport, 56

Documents

Soft substrate macrobenthos of Fiji's Great Astrolabe Reef