ヒメエゾボラにおける同化量の季節変化 Seasonal Change in Assimilation Energy of Neptunea arthritica

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Seasonal changes in the assimilation energy of <i>Neptunea arthritica</i> in Usu Bay, Hokkaido were examined. In adults, energy directed to growth was largest in summer, and energy accumulated as reproductive output was largest in autumn. The assimilation energy levels that sustained metabolism during those periods were considerably higher than during winter and spring. The assimilation energy levels in immature individuals showed less variation than in adults.<br>Net growth efficiency exhibited a convex curve with a peak (49.4%) at 2 years old. In both males and females, the proportion of assimilation energy utilized for reproductive output increased with age. The proportion of investment in females was 3 to 6 times that of males, owing to the production of egg capsules. The production efficiency of adults remained relatively constant at 35 to 40%, except for 5 years male, which showed 25.0%.

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  • 日本水産学会誌  

    日本水産学会誌 63(1), 10-16, 1997-01-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004850329
  • 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
    4119362
  • 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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