五ケ所湾におけるGymnodinium mikimotoiの増殖ポテンシャル Growth Potential of Gymnodinium mikimotoi in Gokasho Bay

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Algal growth potential (AGP) of <i>Gymnodinium mikimotoi</i> was examined at a sampling station situated in Gokasho Bay during a red tide period from 1991 to 1994. In the year 1991, 1992 and 1994 when the bloom of <i>G. mikimotoi</i> occurred, the high AGP of seawater at the depth of 1.0m above bottom (B-1m) was observed at the order of 10<sup>3</sup> cells/m<i>l</i> before the peak of the algae. But the AGP didnot increase during the period from June to August in 1993, the year of no development of <i>G. mikimotoi</i>. These results indicate the possibility of predicting red tide by AGP of seawater at the depth of B-1m.<br>The growth limiting nutrients in Gokasho Bay were also studied using AGP assay. The growth yield of <i>G. mikimotoi</i> was enhanced by the addition of phosphorus to filtered seawater prior to development of the algae. When the bloom of <i>G. mikimotoi</i> occurred, the lack of phosphorus was not found. Therefore, it was suggested that the nutrient factor which control development of <i>G. mikimotoi</i> red tide was phosphorus.

収録刊行物

  • 日本水産学会誌  

    日本水産学会誌 63(4), 578-584, 1997-07-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004851509
  • 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
    4258514
  • 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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