Numerical modeling on Toxin Produced under Nutrient Limited Conditions by Harmful Algae Bloom in Eutrophic Lake Kitaura, Japan

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  • 富栄養化した北浦の有害藻類による栄養塩制限下の毒素生産の数値解析

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Abstract

Harmful algae produce toxin in eutrophic lakes. The toxin production model is developed and applied to the ecosystem in Lake Kitaura. As a result, the toxin concentration is higher in the northern area since algal abundance is higher and algal growth is limited by the concentration of dissolved inorganic phosphorus. The horizontal distribution of toxin concentration cannot be reproduced unless the change in the toxin production rate is modeled based on whether phosphorus or nitrogen limits the algal growth. Higher toxin production in the phosphorus limited case should be assessed enough in the management of water quality in eutrophic lakes.[This abstract is not included in the PDF]

Journal

  • SEISAN KENKYU

    SEISAN KENKYU 65 (1), 61-64, 2013

    Institute of Industrial Science The University of Tokyo

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