15

Biological Data- Argonauta 6: 15-31 (2002)

Distribution of intertidal macrobenthos around Hatakejima Island, 1998

Shun-ichi Ohgaki28-6 Asahigaoka, Tanabe, Wakayama 646-0027, Japan

On April 28-29, 1998, distribution of the intertidal macrobenthos were investigated on the southcoast and around the entire coast of Hatakejima Island (33○ 42'N, 135○ 22' E) in the inner part ofTanabe Bay. It was the forth survey since 1969 of the south-coast macrobenthic biota, and thethird survey since 1983 of the entire coast biota (for results of the previous surveys, see Ohgaki etal. (1997), Benthos Research 52, 89-102, and its references). In the south coast survey, all theintertidal macrobenthos were sought and recorded in 16 rocky-shore plots, whereas in the entirecoast survey, the densities of 86 selected intertidal animal species were estimated in 43 intertidalplots (Fig. 1; for details of the methods, see Ohgaki [1997]). The results are shown in Tables 1-3.References of the scientific names of species in the tables are: Cnidaria, Uchida 2000, Seaanemones in Japanese waters, TBS Britanica Publishing Co. Ltd.; Mollusca, Okutani (ed.) 2000,Marine Molluscs in Japan, Tokai Univ. Press; Other animals, Nishimura (ed.) 1992, 1995, Guideto Seashore Animals of Japan with Color Pictures and Keys I & II, Hoikusha Publ. Co. Ltd.;Algae, Yoshida et al. 2000, Check list of marine algae of Japan (revised in 2000), Jpn. J. Phycol.48, 113-166.

Participants in the surveys in 1998: Naoya Abe, Yasuo Fukui, Hideki Fujihara, Tohru Imaoka,So Ishida, Gyo Itani, Yasunobu Nabeshima, Teruaki Nishikawa, Shun-ichi Ohgaki, HidetomoTanase, Keiji Wada, Ryohei Yamanishi, and Shigeyuki Yamato.

16

Figure 1. Study area. Left: research plots for the entire coast survey. Areas surrounded by solid lines

are rocky shores, by small circles boulder beaches, and by dotted lines sandy beaches or sand-mud flats.The shaded area is land. The dashed rectangle indicates the south-coast survey area. Right: research plots

for the south coast survey.

Table 1. List of species sought but not found in the entire coast survey on April 29, 1998.̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶

[CNIDARIA] Actinia equina Linnaeus ウメボシイソギンチャク [ARTHROPODA] Tetraclitaformosana Utinomi タイワンクロフジツボ, Etisus laevimanus Randall ヒヅメガニ, Pilodiusnigrocrinitus Stimpson トゲオウギガニ,Ocypode stimpsoni Ortmann スナガニ [Mollusca]Monodonta labio (Linnaeus) オキナワイシダタミ, Nerita albicilla Linnaeus アマオブネ, Neritajaponica Dunker アマガイ, Planaxis sulcatus (Born) ゴマフニナ, Clypeomorus bifasciata(Sowerby) カヤノミカニモリ, Japeuthria ferrea (Reeve) イソニナ, Saccostrea mordax (Gould) オハグロガキ, Modiolus nipponicus (Oyama) ヒバリガイ [ECHINODERMATA] Asterina pectiniferaMuller et Troschel イトマキヒトデ, Asterina batheri Goto ヌノメイトマキヒトデ, Coscinasteriasacutispina (Stimpsoni) ヤツデヒトデ, Tripneustes gratilla (Linnaeus) シラヒゲウニ, Ophioplocusjaponicus H.L.Clark ニホンクモヒトデ̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶̶

17

Table 2. Occurrence of selected animal species in the 43 plots along the entire coast of Hatakejima Island

on April 29, 1998. The maximum density (no./㎡) within each plot is shown as one of the following five

classes: ① (1), 1 (2-9 ), 2 (10-99), 3 (100-999), 4 (>1000)

Table 2 Plots 1 2 3 4 5 6 7CNIDARIA1. Haliplanella lineata (Verrill) タテジマイソギンチャク 2 2 1 2 2 22. Anthopleura japonica Verrill ヨロイイソギンチャク 1 1 13. Oulastrea crispata (Lamarck) キクメイシモドキBRYOZOA4. Zoobotryon pellucidum Ehrenberg ホンダワラコケムシ 1 1 15. Watersipora subovoidea (D' Orbigny) チゴケムシ 3 2 2 2 2ANNELIDA6. Eunice aphroditois (Pallas) オニイソメ7. Pomatoleios kraussi (Baird) ヤッコカンザシ 4 4 4 4 4 4 48. Chaetopterus variopedatus (Renier)　ツバサゴカイARTHROPODA9. Capitulum mitella (Linnaeus) カメノテ 3 3 3 2 2 2 110.Chthamalus challengeri Hoek イワフジツボ 4 4 4 4 4 4 411.Euraphia pilsbryi (Hiro)　オオイワフジツボ12.Tetraclita japonica Pilsbry クロフジツボ 3 3 2 2 213.Tetraclita squamosa Bruguière　ミナミクロフジツボ 114.Balanus amphitrite Darwin タテジマフジツボ 1 2 1 2 2 315.Balanus albicostatus Pilsbry シロスジフジツボ 2 3 2 3 3 316.Megabalanus volcano (Pilsbry) オオアカフジツボ 217.Clibanarius virescens (Krauss) イソヨコバサミ 1 1 ① 118.Pagurus filholi (de Man) ホンヤドカリ 1 2 2 2 2 1 219.Pagurus dubius (Ortmann) ユビナガホンヤドカリ 120.Petrolisthes japonicus (de Haan) イソカニダマシ 2 1 1 1 1 121.Leptodius exaratus (H. Milne Edwards) オウギガニ 1 1 1 1 1 122.Pilumnus vespertilio (Fabricius) ケブカガニ ① 123.Scopimera globosa (de Haan) コメツキガニ24.Pachygrapsus crassipes Randall　イワガニ ① 1 125.Hemigrapsus sanguineus (de Haan) イソガニ 1 1 2 1 ① 126.Hemigrapsus penicillatus (de Haan) ケフサイソガニ27.Gaetis depressus (de Haan) ヒライソガニ 1 1 2 1 1 ① 128.Nanosesarma gordoni (Shen) ヒメベンケイガニ 1 1 1 1 1 1 1MOLLUSCA29.Acanthopleura japonica (Lischke) ヒザラガイ 2 2 2 2 2 2 230.Acanthochitona achates (Gould) ヒメケハダヒザラガイ ①31.Cellana toreuma (Reeve) ヨメガカサ 2 132.Cellana grata (Gould) ベッコウガサ 1 ①33.Cellana nigrolineata (Reeve) マツバガイ 2 1 1 1 134.Patelloida saccharina lanx (Reeve) ウノアシ 2 2 2 2 2 2 2

18

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

1. 1 2 1 1 2 12. 1 2 2 13. 1 1 1

4.5. 3 1

6.7. 4 4 3 3 3 3 3 3 2 3 3 3 38. ① 1

9. 2 3 1 2 2 2 2 210. 4 4 4 4 4 4 4 4 4 4 4 411.12 1 2 2 2 213. 114. 2 2 2 1 1 2 2 2 2 315. 3 3 1 2 2 2 3 3 2 3 216.17. 1 1 1 118. 2 1 1 1 3 3 3 2 1 2 3 1 3 1 2 2 119. 1 320. 1 1 1 1 1 1 1 2 1 121. 1 1 1 1 1 1 1 1 1 1 1 122. 1 123. 1 124. ①25. 1 1 1 1 1 126. 1 127. 1 1 2 1 1 1 1 2 1 1 1 1 1 128. 1 1 1 1 1 1 1 1 1 1

29. 2 2 1 2 1 2 1 1 ① 1 1 2 130. 1 131. 1 1 1 ① ① 1 232.33. 1 1 1 2 1 1 1 1 1 1 134. 2 2 1 2 1 2 1 1 1 3 2 2

19

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

1. 12. 1 1 1 13. 1 1 1

4.5. 3 3 3 2 2 2 2 3 2 3 2

6. ① 17. 4 4 4 3 3 4 3 3 4 3 1 3 3 2 3 2 4 38.

9. 3 2 2 2 2 2 3 3 2 3 3 4 4 2 410. 4 4 4 4 4 4 4 4 4 3 4 4 4 4 411. 1 3 1 112 3 2 3 3 3 3 3 2 3 2 4 3 3 3 313. 2 1 1 2 2 2 1 1 1 2 2 1 1 2 214.15. 2 216. 3 3 3 2 1 1 2 2 317. 1 1 2 2 2 2 1 1 2 2 1 1 1 1 118. 1 1 2 2 2 1 2 1 1 1 1 2 1 2 1 119.20. 2 1 2 2 1 1 2 2 1 1 1 121. 1 ① ① 1 1 1 1 1 1 1 1 1 122. ① 1 ① ① ① 1 123.24. 1 1 1 ① 125. 1 1 126.27. 1 1 1 1 1 1 1 1 128. 1 1 1 1 1 1 1 1 1 1 1 1

29. 2 2 2 2 2 2 2 1 2 2 1 2 2 2 2 230. ① 1 ①31. 1 1 2 1 1 1 1 2 2 1 ① 1 2 2 2 2 232. 1 1 1 1 1 1 1 1 1 233. 1 1 1 1 1 1 1 1 2 1 2 2 2 134. 2 1 3 3 2 2 2 1 2 2 2 2 2 2 2 3 3 3

20

Table 2 (continued) Plots 1 2 3 4 5 6 735.Monodonta labio confusa(Tapparone-Canefri) イシダタミ 2 2 2 1 3 2 136.Diloma suavis (Philippi) メクラガイ37.Turbo cornatus coreensis (Récruz) スガイ 1 1 1 2 238.Littorina brevicula (Philippi) タマキビ 1 1 1 2 1 239.Nodilittorina radiata(Eydoux et Souleyet) アラレタマキビ 2 1 2 3 2 1 340.Nodilittorina trochoides (Gray) イボタマキビ41.Serpulorbis imbricatus (Dunker) オオヘビガイ ①42.Batillaria cumingi (Crosse) ホソウミニナ 1 3 343.Thais clavigera (Küster) イボニシ 1 1 ①44.Siphonaria japonica (Donovan) カラマツガイ 2 1 1 2 2 245.Siphonaria acmaeoides Pilsbry シロカラマツガイ 1 246.Siphonaria sirius Pilsbry キクノハナガイ47.Xenostrobus atratus (Lischke) クログチ 3 4 4 4 4 4 448.Septifer virgatus (Wiegmann) ムラサキインコ 1 1 1 149.Mytilus galloprovincialis Lamarck ムラサキイガイ 2 3 250.Hormomya mutabilis (Gould) ヒバリガイモドキ 4 4 4 4 4 4 451.Crassostrea gigas (Thunberg) マガキ 3 3 3 3 3 3 252.Saccostrea kegaki (Torigoe et Inaba) ケガキ 1 2 2 1 2 1 2ECHINODERMATA53.Asterina coronata japonica Hayashi トゲイトマキヒトデ54.Diadema setosum (Leske) ガンガゼ 155.Hemicentrotus pulcherrimus (A. Agassiz) バフンウニ56.Echinostrephus molaris (Blainville) タワシウニ57.Anthocidaris crassispina (A. Agassiz) ムラサキウニ ① 158.Pseudocentrotus depressus (A. Agassiz) アカウニ59.Echinometra sp. A ツマジロナガウニ60.Echinometra sp. B ホンナガウニ61.Mespilia globulus (Linnaeus) コシダカウニ62.Holothuria moebii (Ludwig) テツイロナマコ63.Holothuria leucospirota Brandt ニセクロナマコ64.Holothuria pardalis Selenka イソナマコ65.Afrocucumis africana (Semper) ムラサキグミモドキ66.Polycheira rufescens (Brandt) ムラサキクルマナマコ ①HEMICHORDATA67.Balanoglossus carnosus (Willey) ワダツミギボシムシUROCHORDATA68.Styela plicata (Lesueur) シロボヤ 1 1 1 1 1

21

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2535. 2 1 1 1 1 1 1 1 2 2 1 236.37. 3 1 1 2 2 1 2 2 2 2 2 2 2 238. 1 1 1 1 1 139. 2 3 3 3 2 1 240. ①41.42. 3 3 3 3 3 3 3 343. ① 1 ① 1 144. 2 2 1 2 1 1 1 145. 1 2 2 2 2 246. ①47. 4 4 4 4 4 3 4 4 3 4 4 448. ① ① 1 149. 1 1 1 ①50. 4 4 4 3 4 4 4 3 3 3 3 4 451. 3 3 2 2 2 2 2 2 2 2 1 2 2 2 152. 1 1 1 1 1 1 2 1 1 ①

53. 1 1 1 1 1 1 154. ① 1 1 155. 1 1 1 1 1 156. 1 157. 1 1 1 1 1 1 1 1 1 1 1 1 158.59. 1 1 1 160.61. ① 1 1 162. ①63. 164.65.66. 1

67. 1

68. 1 1 2 1

22

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 4335. ① 1 2 2 2 2 2 1 1 2 236. 2 1 ①37. 2 2 1 ① 1 2 2 2 1 1 138. 1 1 1 2 1 1 139. 2 2 3 3 1 1 1 2 3 2 1 1 240.41.42.43. 1 2 1 1 1 1 1 1 1 1 1 144. 2 2 1 1 2 2 1 1 1 245. 1 1 1 2 2 1 246. 1 1 1 1 2 1 1 1 1 1 2 2 2 147. 2 3 4 4 4 4 4 3 4 3 2 2 3 3 3 348. 1 2 3 2 1 2 1 3 3 3 149. ① ①50. 4 4 4 4 4 4 4 3 4 4 3 3 4 4 4 4 4 451. 2 1 2 2 2 2 1 2 2 1 2 1 1 1 1 2 152. 1 1 2 2 2 ① 1 1 ① 1 1 2 1 1 1

53. 1 154. 1 1 1 155. 1 1 1 1 1 1 1 156. 1 1 1 1 1 1 2 1 1 157. 1 1 1 2 2 2 2 2 2 1 1 2 2 2 2 258. 159. ① 1 1 1 1 1 1 1 1 1 1 1 1 160. 1 1 161.62. 163. ① 1 1 1 1 164. ① ①65. 166. ① 1 1 1 2

67.

68.

23

Table 3. Occurrence of macrobenthic species in the 16 rocky plots in the south-coast survey area of

Hatakejima Island on April 28, 1998. +: found.

Table 3 Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

PORIFERAHalichondria okadai (Kadota)クロイソカイメン

+ + + + + + + + +

Halichondria japonica (Kadota)ダイダイイソカイメン

+ + + + + + + + + + +

Halichondria panicea (Pallas)ナミイソカイメン

+ + + +

Halichondria permollis(Bowerbank) ムラサキカイメン + + + +

Halichondridae gen. sp.イソカイメン科の 1種 + + + + +

CNIDARIACladiella digitaulata Klunzingerユビノウトサカ

+ +

Anthopleura uchidai Englandヨロイイソギンチャク

+ + + + + + + + + +

Anthopleura inornata (Stimpson)ベリルイソギンチャク

+ + + + + + + +

Haliplanella lineata (Verrill)タテジマイソギンチャク

+ + + + + +

TENTACULATAWatersipora subovoidea(D' Orbigny) チゴケムシｲｲｼﾞﾏﾋﾗﾑｼ ?

+

SIPUNCULAPhascolosoma scolops (Selenka et deMan) サメハダホシムシ + +

Thysanocardia sp.カザリフクロホシムシ属の 1種 +

ANNELIDAGenetyllis castanea (Marenzeller)アケノサシバ

+

Eulalia viridis (Linnaeus)サミドリサシバ

+

Perinereis cultrifera (Grube)クマドリゴカイ

+ + + + + +

Perinereis nuntia (Savigny)イソゴカイ

+ +

24

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Lepidonotus elongatusMarenzeller ヤチウロコムシ + + + + +

Marphysa sanguinea (Montagu)イワムシ

+ +

Eunice antennata (Savigny)ジュズイソメ

+

Cirriformia tentaculata(Montagu) ミズヒキゴカイ +

Cirriformia punctata (Grube)マダラミズヒキ

+

Arabella iricolor (Montagu)セグロイソメ

+ +

Polyophthalmus pictus(Dujardin) カスリオフェリア +

Pomatoleios kraussi (Baird)ヤッコカンザシ

+ + + + + + + + + + +

Dexiospira foraminosa (Bush)ウズマキゴカイ

+

Phyllodocidae gen. sp.サシバゴカイ科の 1種 +

ARTHROPODANeomolgus littoralis (Linnaeus)イソテングダニ

+ + +

Capitulum mitella (Linnaeus)カメノテ

+ + + + + + + +

Ibla cumingi Darwinケハダエボシ

+ + +

Euraphia pilsbryi (Hiro)オオイワフジツボ

+

Chthamalus challengeri Hoekイワフジツボ

+ + + + + + + + + + + + + + +

Tetraclita japonica Pilsbryクロフジツボ

+ + + + + +

Tetraclita squamosa Bruguièreミナミクロフジツボ

+ +

Balanus amphitrite Darwinタテジマフジツボ

+ + + + + + + + + + + +

Balanus albicostatus Pilsbryシロスジフジツボ

+ + + + + + + + + + + + + + +

Megabalanus volcano (Pilsbry)オオアカフジツボ

+

Megabalanus rosa (Pilsbry)アカフジツボ

+

Melita sp.メリタヨコエビ属の 1種 +

Ligia exotica Rouxフナムシ

+ + + + +

25

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Palaemon pacificus (Stimpson)イソスジエビ

+ + + + + + +

Alpheus sp.テッポウエビ属の 1種 +

Clibanarius virescens (Krauss)イソヨコバサミ

+ + + + + +

Pagurus filholi (de Man)ホンヤドカリ

+ + + + + + + + + + + + + +

Pagurus dubius (Ortmann)ユビナガホンヤドカリ

+ + + + + +

Pagurus lanuginosus de Haanケアシホンヤドカリ

+

Petrolisthes japonicus (de Haan)イソカニダマシ

+

Plagusia dentipes de Haanショウジンガニ

+ +

Matula lunaris (Froskål)キンセンガニ

+

Tiarinia cornigera (Latreille)イソクズガニ

+ + +

Halicarcinus orientalis Sakaiトウヨウヤワラガニ

+

Portunus pelagicus (Linnaeus)タイワンガザミ

+

Thalamita sima H. MilneEdwards フタバベニツケガニ +

Leptodius exaratus(H. Milne Edwards) オウギガニ + + + + + + + +

Macromedaeus distinguendus(de Haan) シワオウギガニ +

Actaea pulchella (A. MilneEdwards) ムラサキアワツブガニ + + + +

Pilumnus vespertilio (Fabricius)ケブカガニ

+ + + + +

Pilumnopeus indica (de Man)トラノオガニ

+

Metopograpsus thunkuhar(Owen) ハシリイワガニモドキ +

Pachygrapsus crassipes Randallイワガニ

+ + + + + + + + + +

Hemigrapsus sanguineus(de Haan) イソガニ + + + + + + +

Hemigrapsus penicilatus(de Haan) ケフサイソガニ + + +

Gaetice depressus (de Haan)ヒライソガニ

+ + + + + + + + + +

Parasesarma pictum (de Haan)カクベンケイガニ

+ +

26

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Nanosesarma gordoni (Shen)ヒメベンケイガニ

+ + + + + + + + + + + +

MOLLUSCAAcanthopleura japonica (Lischke)ヒザラガイ

+ + + + + + + + + + + + +

Acanthopleura loochooana (Brode-rip&Sowerby)リュウキュウヒザラガイ + + + + +

Onithochiton hirasei Pilsbryニシキヒザラガイ

+

Acanthochitona achates (Gould)ヒメケハダヒザラガイ

+ + + + + + + +

Scutellastra flexuosa (Quoy &Gaimard) ツタノハガイ +

Cellana toreuma (Reeve)ヨメガカサ

+ + + + + + + +

Cellana grata (Gould)ベッコウガサ

+ + +

Cellana nigrolineata (Reeve)マツバガイ

+ + + + + + + + + +

Patelloida saccharina lanx(Reeve) ウノアシ + + + + + + + + + + + + + +

Patelloida pigmaea (Dunker)ヒメコザラ

+ + + +

Lottia kogamogai Sasaki etOkutani コガモガイ + + + + + + + + + + + + +

Lottia tenuisculpta Sasaki &Okutani コモレビコガモガイ +

Lottia langfordi Habeキクコザラ

+

Nipponacmaea schrenckii(Lischke) アオガイ + +

Nipponacmaea gloriosa (Habe)サクラアオガイ

+

Nipponacmaea concinna(Lischke)コウダカアオガイ

+

Nipponacmaea fuscoviridis(Teramachi) クサイロアオガイ + + + +

Haliotis diversicolor aquatilisReeve トコブシ +

Haliotis varia Linnaeusイボアナゴ

+

Omphalius rusticus (Gmelin)コシダカガンガラ

+ +

Omphalius nigerrimus (Gmelin)ヒメクボガイ

+

Trocus maculatus Linnaeusニシキウズガイ

+

27

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Trocus rota Dunkerウズイチモンジ

+

Tectus pyramis (Born)ギンタカハマ

+

Monodonta labio confusa(Tapparone-Canefri) イシダタミ + + + + + + + + + + + + + + + +

Diloma suavis (Philippi)メクラガイ

+ +

Turbo stenogyrus Fischerコシダカサザエ

+

Turbo cornatus coreensis(Récruz) スガイ + + + + + + + + + + + + +

Diala semistriata (Philippi)スズメハマツボ

+

Batillaria cumingi (Crosse)ホソウミニナ

+ + + + + + + + + + +

Peasiella habei Reid et Makコビトウラウズ

+ + + + + + + + + + + + + +

Nodilittorina radiata (Eydoux etSouleyet) アラレタマキビ + + + + + + + + + + + + + + +

Nodilittorina trochoides (Gray)イボタマキビ

+ +

Littorina brevicula (Philippi)タマキビ

+ + + + + + + + + + + + + + + +

Barleeia angustata (Pilsbry)チャツボ

+ + + + +

Hipponix trigona (Gmelin)スズメガイ

+

Cypraea caputserpentis caput-serpentis Linnaeus ハナマルユキCronia margariticola (Broderip)ウネレイシガイダマシ

+ + + + +

Ergalatax contractus (Reeve)ヒメヨウラク

+ + + + + + + + + +

Morula musiva (Kiener)シマレイシガイダマシ

+ + + + + + + + +

Thais clavigera Küsterイボニシ

+ + + + + + + + + + +

Thais bronni (Dunker)レイシガイ

+ + + + + + + +

Thais kyteistina (Holten)クリフレイシ

+ + +

Anachis misera misera (Sowerby)ボサツガイ

+

Aplysia kurodai (Baba)アメフラシ

+ + + + + +

Aplysia oculifera Adams et Reeveミドリアメフラシ

+ +

28

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Dolabella auricularia (Lightfoot)タツナミガイ

+

Dendrodoris arborescens(Collingwood) クロシタナシウミウシ +

Siphonaria japonica (Donovan)カラマツガイ

+ + + + + + + + + + + + + +

Siphonaria acmaeoides Pilsbryシロカラマツガイ

+ + + + + + + + + + + +

Siphonaria sirius Pilsbryキクノハナガイ

+

Barbatia virescens (Reeve)カリガネエガイ

+ + + + + + + + + + + +

Xenostrobus atratus (Lischke)クログチ

+ + + + + + + + + + + + + + + +

Septifer bilocularis (Linnaeus)クジャクガイ

+

Septifer virgatus (Wiegmann)ムラサキインコ

+ + + + +

Hormomya mutabilis (Gould)ヒバリガイモドキ

+ + + + + + + + + + + + +

Pinctada martensii (Dunker)アコヤガイ

+ + + + + + +

Crassostrea gigas (Thunberg)マガキ

+ + + + + + + + + + + + + +

Saccostrea kegaki Torigoe& Inabaケガキ

+ + + + + + + + + + + + +

Chama japonica Lamarckキクザルガイ

+ +

Claudiconcha japonica (Gould)セミアサリ

+ + + + + + + + + + + +

Hiatella orientalis (Yokoyama)キヌマトイガイ

+

ECHINODERMATAAsterina coronata japonicaHayashi トゲイトマキヒトデ +

Echinostrephus molaris(Blainville) タワシウニ +

Anthocidaris crassispina(A. Agassiz) ムラサキウニ + + + +

Echinometra sp. Aツマジロナガウニ

+

Holothuria pardalis Selenkaイソナマコ

+

UROCHORDATAAplidium yamazii (Tokioka)シモフリボヤ

+

29

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Styela plicata (Lesueur)シロボヤ

+ +

Styela canopus Savignyフタスジボヤ

+ + + + +

Botrylloides sp.イタボヤ属の 1種 +

Herdmania sp.ベニボヤ属の 1種 +

CYANOPHYTAPhormidium sp. + + + + + + + +

CHLOROPHYTAMonostroma nitidum Wittrockヒトエグサ

+ + + + + + +

Ulva conglobata Kjellmanボタンアオサ

+ + + + + + + + + + + + +

Enteromorpha compressa(Linnaeus) ヒラアオノリ +

Enteromorpha intestinalis(Linnaeus) ボウアオノリ + + + + + + + + +

Enteromorpha linza J. Agardhウスバアオノリ

+

Cladophora conchopheria Sakaiカイゴロモ

+ + + + + + + +

Cladophora sp. 1シオグサ属の 1種 +

Urospora sp.シリオミドロ属の１種

+ + + + + + + + + + +

Codium cylindricum Holmesナガミル

+ +

Codium contractum Kjellmanサキブトミル

+

Struvea anastomosans Piccone etGrunow サイノメアミハ + + + + + +

Bryopsis ryukyuensis Yamadaワタハネモ

+ + + + + + +

PHAEOPHYTARalfsia verrucosa (Areschoug)イソハンモン

+ + +

Dictyota dichotoma (Hudson)アミジグサ

+

Dictyopteris prolifera (Okamura)ヘラヤハズ

+

Pachydictyon coriaceum (Holmes)サナダグサ

+

30

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Padina arborescens Holmesウミウチワ

+ +

Petrospongium rugosum Setchelet Gardner シワノカワ +

Colpomenia sinuosa (Mertens exRoth) フクロノリ + + + + + +

Sargassum piluliferum (Turner)マメタワラ

+ + + +

Sargassum patens C. Agardhヤツマタモク

+

Sargassum thunbergii (Mertensex Roth) ウミトラノオ + + + + +

Sargassum hemiphyllum(Turner) イソモク +

Sargassum fusiforme Setchellヒジキ

+

RHODOPHYTADermonema pulvinatum(Grunow) カモガシラノリ + + + + +

Amphiroa zonata Yendoウスカワカニノテ

+ + + + +

Amphiroa sp.カニノテ属の 1種 +

Lithophyllum okamurae Foslieヒライボ

+ + + + +

Corallina pilulifera Postels etRuprecht ピリヒバ + + + + + + + + + + + + + +

Gelidium divaricatum Martensヒメテングサ

+ + + + + + + + + + + + +

Gelidium pusillum (Stackhouse)ハイテングサ

+ + + + + + + +

Gelidium elegans Kützingマクサ

+ +

Pterocladiella tenuis (Okamura)オバクサ

+ + + + + + +

Pterocladiella nana Shimada,Horiguchi et Masuda チャボオバクサ +

Caulacanthus usutulatus(Turner) イソダンツウ + + + + + + + + + + + + + +

Chondracanthus intermedius(Suringar) カイノリ + + + + + + + + + + + +

Grateloupia filicina (Lamouroux)ムカデノリ

+ + + + + + +

Grateloupia lanceolata(Okamura) フダラク +

Carpopeltis prolifera (Hariot)コメノリ

+ + + +

31

Table 3 (continued) Plots 1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

Hypnea charoides Lamourouxイバラノリ

+ + + + +

Ahnfeltiopsis flabelliformis(Harvey) オキツノリ + +

Gracilaria chorda Holmesツルシラモ

+ + +

Gracilaria textori Haliotカバノリ

+

Lomentaria hakodatensis Yendoコスジフシツナギ

+

Ceramium tenerrimum (Martens)ケイギス

+ + + + + + + + + +

Laurencia sp.ソゾ属の 1種 + +