成貝の付着誘引効果を用いたマガキ人工採苗技術の改良 Effective Pretreatments of Spat-collectors for Induced Settlement of the Pacific Oyster, Crassostrea gigas

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The effects of pretreatment of scallop shell spat-collectors on oyster <i>Crassostrea gigas</i> larval settlement were studied. Spat-collectors were pretreated by immersion in 1 mM L-DOPA, filtered seawater, surface seawater, filtered seawater with oyster shells or live adult oysters for 4 days. An average of 84% spats were found on spat-collectors pretreated in seawater with the presence of live adult oysters after 3 days of the settlement experiment. This settlement-inducing effect was increased by extending the pretreatment period and by increasing the number of adult oysters. The settlement-inducing effect decreased considerably when such pretreated spat-collectors were soaked in hot (50°C) water and dried. The results of these experiments confirmed that the pretreatment with live adult oysters increased the ratio of larval settlement to spat-collectors, and enabled the setting period to be reduced. The pretreatment of spat-collectors with live adult oysters could be applied to the large-scale artificial setting of oyster larvae.

収録刊行物

  • 日本水産学会誌  

    日本水産学会誌 64(4), 610-617, 1998-07-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004853771
  • 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
    4523688
  • 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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