川原大池におけるラフィド藻Gonyostomum Semenのブルームと制限因子 Bloom and Limiting Factor of Gonyostomum Semen (Ehr.) Diesing (Raphidophyceae) in Kawahara Lake

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Seasonal changes and the vertical distributions of the water quality in Kawahara Lake were observed during Feb.-Oct. 2000. With progressing of thermal stratification in the lake, DO decreased gradually in lower layer and the nutritive salts (NH<sub>4</sub>-N, PO<sub>4</sub>-P) released from bottom sediment.<br>On the other hand, in the middle layer of 4-5m depth, phytoplankton biomass grew and aggregated densely in the state of thin layer about 1m thick. The dominant species of the phytoplankton in that layer is <i>Gonyostomum semen</i>. It was concluded that the limiting factor for the biomass growth was NO<sub>3</sub>-N, because the bloom occurred after inflowing of NO<sub>3</sub>-N with heavy rainfall.

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  • 水環境学会誌 = Journal of Japan Society on Water Environment

    水環境学会誌 = Journal of Japan Society on Water Environment 24(11), 709-714, 2001-11-10

    公益社団法人 日本水環境学会

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各種コード

  • NII論文ID(NAID)
    10008005869
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    5975779
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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