スケトウダラTheragra chalcogrammaの体型による角目網コッドエンドの漁獲選択性の変化 Variation of Square Mesh Codend Selectivity for Walleye Pollock Theragra chalcogramma with Respect to Difference in Body Shape

この論文にアクセスする

この論文をさがす

著者

抄録

Square mesh codend selectivity experiments for walleye pollock <i>Theragra chalcogramma</i> were carried out along the Pacific coast of the Kuril Islands and off Miyagi, Tohoku. Selection curves varied by differences in body shape. Catches taken off Miyagi tended to retain smaller individuals when compared with catches using the same codend mesh size off the Kuril Islands. A detailed investigation of the total length-body girth relationship showed that there were significant differences in the maximum body girth of walleye pollock for fish of the same length. It was also observed that when the catch of fish in the selection range was relatively small, the selection curve tended to be sharp. The selection master curve was expressed in terms of the retention ratio of the codend to the body girth (<i>G</i>) and mesh perimeter (<i>P</i>) ratio (<i>G/P</i>). From these findings, it is suggested that selectivity research should include investigations of changes in the target body shape in the fishing grounds.

収録刊行物

  • 日本水産学会誌  

    日本水産学会誌 63(1), 23-29, 1997-01-15 

    日本水産學會

参考文献:  17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:  8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)
    10004850379
  • 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
    4119364
  • 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