全国湖沼データの解析による藍藻類の優占化と環境因子との関係

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書誌事項

タイトル別名
  • Analytical Evaluation of Relationship between Dominance of Cyanobacteria and Aquatic Environmental Factors in Japanese Lakes.
  • ゼンコク コショウ データ ノ カイセキ ニヨル ランソウルイ ノ ユウセンカ

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抄録

Relationship between dominance of cyanobacteria and aquatic environmental factors, such as T-N, T-P, N/P ratio, water temperature, mean depth and mixing level was examined in analysis of 211 Japanese lakes. Cyanobacteria dominated in lakes with higher T-N and T-P concentration than that of lakes which is dominated by green and diatom algae. Percentage of lakes which is dominated by cyanobacteria and Microcystis increased with increase of N/P ratio in analysis with eutrophic lakes (T-P≥0.035mg·l-1). Percentage of lakes which is dominated by cyanobacteria, especially Micrecystis increased with increase of water temperature. Percentage of lakes which is dominated by cyanobacteria decreased with increase of mean depth, while increased with increase of mixing level. Filamentous cyanobacteria, Oscillatoria and Phormidium tended to dominate in lakes with high mixing level. It was proved that dominance of cyanobacteria had close relationship with these aquatic environmental factors.

収録刊行物

  • 水環境学会誌

    水環境学会誌 18 (11), 901-908, 1995

    公益社団法人 日本水環境学会

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