Feeding habits of juvenile slime flounder Microstomus achne in the coastal area of southern Hokkaido |
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Authors: | Mitsuhiro Nakaya Takuzo Abe |
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Affiliation: | (1) Kakikin Corporation, Akkeshi, Hokkaido 088-1111, Japan;(2) Faculty of Fisheries, Hokkaido University, Minato, Hakodate Hokkaido, 041-8611, Japan;(3) Present address: Fisheries Research Agency, National Research Institute of Aquaculture, Komame Laboratory, Kochi 788-0302, Japan |
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Abstract: | A total of 45 juvenile [30.0–57.4 mm total length (TL)] slime flounder Microstomus achne were collected in the coastal area of southern Hokkaido from April to July in 2001 and April to June in 2002. Their diets were analyzed. Slime flounder juveniles of 30.0–39.9 mm TL fed predominantly on small crustaceans (gammarid amphipods, harpacticoids and cumaceans) and those of 40.0–57.4 mm TL on gammarid amphipods, cumaceans and polychaetes. The major prey items changed with growth from small crustaceans (e.g., harpacticoids) to polychaetes, although gammarid amphipods were the major prey items throughout the juvenile period (30.0–57.4 mm TL). |
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