Journal of the Graduate School of Biosphere Science, Hiroshima University Volume 48
2009-12-25 発行

トカラ列島口之島,中之島,平島,小宝島における浅海魚類相 : 2002年-2007年の潜水センサス調査から

Fish Fauna on Reefs of Tokara Islands, Southern Japan, Surveyed By Underwater Census During 2002-2007
Kadota, Tatsuru
Tsuboi, Miyuki
Go, Akio
Masui, Yoshinari
Hashimoto, Hiroaki
Gushima, Kenji
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abstract
We conducted underwater census to survey the fish fauna on reefs of Tokara Islands with aids of the research vessel Toyoshio-maru of Hiroshima University. A total 304 fish species were recorded, and were almost completely comprised of coral reef fishes mainly distributing in the tropical or subtropical waters. This result strongly suggests that Tokara Islands biogeographically belong to the subtropical-water area as a part of the Ryukyu Islands district as ever been proposed by Nakabo (2002a). Through comparisons of the present fish records with data of further northern areas in Kuroshio Current zone, a total of 11 species, Neoniphon opercularis (Holocentridae), Pseudochromis marshallensis (Pseudochromidae), Apogon exostigma (Apogonidae), Hoplolatilus cuniculus (Malacanthidae), Amphiprion frenatus (Pomacentridae), Cheilinus fasciatus (Labridae), Chlorurus oedema (Scaridae), Ecsenius oculus (Blenniidae), Fusigobius humeralis (Gobiidae), Siganus guttatus (Siganidae), Naso tuberosus (Acanthuridae) are suggested to distribute up to Tokara Islands as northern range limits.
subject
亜熱帯水域
黒潮
サンゴ礁魚類
潜水センサス
トカラ構造海峡
Coral reef fishes
Kuroshio Current
Subtropical-water area
Visual census