豊前海の小型定置網における袋網位置別投棄魚種組成 Comparison of Discarded Species Composition between Bag-nets Set at Different Positions in a Small Set-net in the Buzen Sea, Inland Sea of Japan

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抄録

This paper describes the number of fish and crab caught and discarded in individual bag-nets set at different positions in a small set-net. Most of the fish tended to be caught in the bag-nets at one or both ends in four fish species: <i>S. Zunasi, K. punctatus, C. affinis</i> and <i>L. japonicus</i>, whilst the two crabs <i>C. japonica</i> and <i>P. trituberculatus</i> were caught mainly in the bag-nets around the central part of the fence net. The differences between bag-nets in number of each species caught are discussed in terms of gear design and in particular the design of the fence net and the swimming behavior of these spe-cies. The Mesh size of bag-nets in the small set-net fishery in the Buzen Sea is small to catch small-size shrimp. This leads to by-catch of juveniles of the target fish, in particular <i>L. japonicus</i>, one of the most important species. Assuming that small shrimp are likely to be caught in the bag-nets around the central part of the fence net as previously described in some papers, the result of this paper sug-gests the possibility that larger mesh size in both end bag-nets may allow juvenile <i>L. japonicus</i> to escape through the mesh of these bag-nets without reducing the catch of small shrimps.

収録刊行物

  • 日本水産学会誌  

    日本水産学会誌 63(1), 43-49, 1997-01-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004850427
  • 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
    4119367
  • 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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