東北太平洋沿岸域におけるヒラメの摂餌生態 Feeding Habits of the Japanese Flounder Paralichthys olivaceus in Pacific Coastal Waters of Tohoku District, Northeastern Japan

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Stomach contents of juvenile Japanese flounders were studied from 3 sheltered and 3 exposed bays. Newly settled flounders (15-20mm in TL) mainly consumed mysids regardless of the availability of food organisms. In sheltered bay areas where mysid densities were low, flounders larger than 60mm preyed mainly on juvenile fish. In exposed inshore areas mysids were abundant and con-stituted the major dietary item of flounder until 200mm. The amount of the stomach contents was not significantly different between the two area types. From monthly investigations it was found that seasonal changes in the feeding activity of juvenile flounders is closely associated with water temperature and mysid abundance. Analysis of the relationship between the total length of flounders (from 15mm to 600mm) and the size and number of prey consumed suggest that small mysid individuals are the most suitable prey items for flounders until 50mm and fish prey items are essential for larger flounders.

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  • 日本水産学会誌  

    日本水産学会誌 64(2), 249-258, 1998-03-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004852973
  • NII書誌ID(NCID)
    AN00193422
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00215392
  • NDL 記事登録ID
    4437715
  • NDL 雑誌分類
    ZR26(科学技術--農林水産--水産)
  • NDL 請求記号
    Z18-345
  • データ提供元
    CJP書誌  CJP引用  NDL  IR  J-STAGE 
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