鳥取県沿岸浅海域に放流したヒラメ人工種苗の摂餌状態と餌料条件 Changes in Feeding Condition of Released Hatchery-reared Japanese Flounder, Paralichthys olivaceus, and Prey Mysid Density in the Coastal Area of Tottori Prefecture

この論文にアクセスする

この論文をさがす

著者

抄録

To investigated the factors influencing the mortality of restocked Japanese flounder, <i>Paralichthys olivaceus</i>, changes in the condition of hatchery-reared and wild Japanese flounder juveniles and density of mysids as the main diet of flounder juvenilies were studied in the coastal area of Tottori Prefecture from 1989 to 1991. Food intake of reared flounder was lower, and the incidence of empty stomachs was evidently higher than in wild flounder. Hatchery-reared flounder were released in June and July and showed a rapid decrease in condition after release. Mysid abundunce was highest in April and May, then a marked decrease in abundance occurred in June. The condition factor of wild flounder also declined markedly in late June and July. These findings suggest that the poor condition of reared flounder after release was caused by a combination of poorly developed feeding ability for wild prey and the seasonal reduction of mysid density. It is speculated that the poor condition of flounders enhanced vulnerability to predation.

収録刊行物

  • 日本水産学会誌  

    日本水産学会誌 63(6), 886-891, 1997-11-15 

    日本水産學會

参考文献:  12件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  7件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10004852078
  • 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
    4335222
  • 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 
ページトップへ