Selection and Inbreeding Depression in Maintenance of a Stock Population of the Apple Snail Pomacea canaliculata

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抄録

A stock population of the apple snail has been maintained for artificial selection without human interference and has become inbred. Hatchability fluctuated significantly among the egg lumps, and average hatchability decreased with the decrease in number of mature snails in the stock population. Heritability of hatchability was estimated from the regression line of hatchabilities of offspring to that of their parents; the value was 0.461. The realized heritability was calculated from the first selection for high and low hatchability, and the values were 0.398 for high hatchability and 1.427 for low hatchability. High heritability probably involved heterotic effects, because of decreased hatchability observed in full-sib mating.

収録刊行物

  • Fisheries science : FS  

    Fisheries science : FS 63(3), 368-371, 1997 

    公益社団法人 日本水産学会

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各種コード

  • NII論文ID(NAID)
    10004869973
  • NII書誌ID(NCID)
    AA10993718
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09199268
  • NDL 記事登録ID
    4231319
  • NDL 雑誌分類
    ZR26(科学技術--農林水産--水産)
  • NDL 請求記号
    Z54-H592
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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