東シナ海におけるケンサキイカの外套長体重関係の変動性 Variability in Mantle Length-Body Weight Relationships of the Swordtip Squid in the East China Sea

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Mantle length-body weight relationships of the swordtip squid Photololigo edulis in the East China Sea were studied using samples from 1986 to 1995 bottom trawl surveys. Allometry formulae of the body weight (BW in gram) against the mantle length (ML in mm) of this squid were estimated by using linear analysis as follows, which showed clear differences between both sexes and sizes by AIC values; in males less than 13cm ML, <i>BW</i>=2.7730•10<sup>-4</sup>•<i>ML</i><sup>2.5961</sup>, 13cm and larger, <i>BW</i>=4.1228•10<sup>-3</sup>•<i>ML</i><sup>2.0429</sup>; in females less than 13cm ML, <i>BW</i>=2.0434•10<sup>-4</sup>•<i>ML</i><sup>2.6705</sup>, 13cm and larger, <i>BW</i>=1.2271•10<sup>-3</sup>•<i>ML</i><sup>2.3002</sup>. This squid tended to have a more slender body shape in males, and in larger squids regardless of sex. It is suggested that the difference of development of reproductive organs causes the difference of body shape in sex. Mantle length-body weight relationships of this squid by season were also estimated by dividing each sex into two size groups.

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  • 日本水産学会誌  

    日本水産学会誌 63(6), 964-970, 1997-11-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004852268
  • 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
    4335233
  • 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  NDL  IR  J-STAGE 
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