文章基本信息

标题：The Influence of Tributyltin Chloride and Polychlorinated Biphenyls on Swimming Behavior, Body Growth, Reproduction, and Activity of Biotransformation Enzymes in Daphnia magna
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作者：Katja Schmidt ; Stephan Pflugmacher ; Georg B. O. Staaks 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2006
卷号：21
期号：1
页码：109-120
DOI：10.1080/02705060.2006.9664103
出版社：Taylor & Francis
摘要：Exposure to tributyltin chloride (TBT) at 7.1 μg L -1 or polychlorinated biphenyls (PCB) at 1.5 μg L -1 significantly affected Daphnia magna causing rapid decreases in mean swimming activity and a change in the preferred swimming depth. Lower exposure concentrations (0.1 μg L -1 TBT or 0.1 μg L -1 PCB) did not significantly alter swimming behavior. Exposure to medium and high TBT concentrations (0.1 μg L -1 and 7.1 μg L -1 ) caused a decrease in body growth and decreased the number of newborn daphnids. PCB exposure at 1.5 μg L -1 and 12 μg L -1 did not affect reproduction or body growth of the animals. The lowest exposure levels (0.1 μg L -1 PCB or 0.02 μg L -1 TBT) did not alter any behavioral or ecophysiological parameter of the daphnids. Exposure to PCB as high as 15 μg L -1 or TBT as high as 6.6 μg L -1 had no effect on daphnid glutathione-S-transferase and glutathione-peroxidase activity.