物理的処理による淡水赤潮対策の効果に関する基礎的実験
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概要
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We carried out experimental study investigating the effects of physical treatment on dinoflagellate (Peridinium bipes) in order to develop measure to prevent freshwater red tide in reservoirs. Surface water in the reservoir occurring freshwater red tide was sampled for the physical treatments. We found that physical treatment caused cessation of swimming of P. bipes and subsequently effects on water quality and plankton composition. Immediately after physical treatment, almost of all cells of P. bipes stopped swimming behavior. However, one day after treatment, about 70% of cells restarted swimming. This ratio maintained 12 day after the treatment. Settlement of stopping cells led decrease in concentration of Chla and SS. Considering these effects, we discussed mechanism of effects of physical treatment on Peridinium dynamics and counter measure preventing freshwater red tide.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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