Feeding Habits of Moray Eels (Pisces: Muraenidae) at Kuchierabu-jima

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  • 口永良部島におけるウツボ科魚類の食性
  • 口永良部島におけるウツボ科魚類の食性〔英文〕
  • クチノエラブジマ ニ オケル ウツボカ ギョルイ ノ ショクセイ エイブン

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The gut contents of 14 species of tropical moray eels, Strophidon ui, Gymnothorax eurostus, G. rueppelliae, G. flavimarginatus, G. melanospilus, G. thyrsoideus, G. fimbriatus, G. javanicus, G. albimarginatus, Echidna polyzona, E. nebulosa, Gymnomuraena zebra, Uropterygius macrocephalus and U. tigrinus, plus unidentified young morays in shallow reef water around Kuchierabu-jima Island, southern Japan, were analyzed. These morays were carnivorous, feeding on crabs, shrimps, stomatopods, amphipods, gastropod snails, sea urchins and fishes. Among the available prey their most important food was crabs, in particular, grapsid crab, Percnon planissimum, living in shallow water along rocky shores. The larger specimens of the genus Gymnothorax, frequently fed on crabs and fishes. The fish of the genus Echidna fed mainly on crabs and the genus Gymnomuraena fed on crabs, gastropod snails and sea urchins with hard shells. Small young morays (<100 mm TL) primarily fed on amphipods.

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