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标题：The Toxicities of Single-Celled Microcystis aeruginosa PCC7820 and Liberated M. aeruginosa to Daphnia carinata in the Absence and Presence of the Green Alga Scenedesmus obliquus
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作者：Feizhou Chen ; Ping Xie
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2004
卷号：19
期号：4
页码：539-545
DOI：10.1080/02705060.2004.9664733
出版社：Taylor & Francis
摘要：We evaluated the toxic effect of Microcystis aeruginosa on Daphnia carinata King using survival rate, population growth rate, and body length. When fed Microcystis aerugionsa PCC7820 and liberated colonial Microcystis spp., all D. carinata died within five days. When fed a mixture of M. aeruginosa PCC7820 and the green alga Scenedesmus obliquus, the survival rate, population growth rate, and body length of D. carinata generally increased. The survival rates were all above 80% after ten days. However, with liberated colonial M. aeruginosa, the toxic effect on D. carinata was more pronounced, and only at higher concentration of S. obliquus did that toxic effect abate. Our results indicated that green algae could greatly weaken the toxic effect of cyanobacteria.