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硫丹对草鱼鱼种的急性毒性效应 被引量:4

Acute Toxicity of Endosulfan to Juvenile Grass Carp Ctenopharyngodon idellus
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摘要 以草鱼为受试生物,研究了硫丹对鱼类的急性毒性效应影响。研究结果表明,水中硫丹对草鱼鱼种的24、48、72、96h半致死质量浓度分别为3.82、2.52、1.86、1.42μg/L;安全质量浓度为0.33μg/L;试验鱼的死亡率随硫丹暴露质量浓度的升高而增大,表现出明显的剂量-效应关系。根据化学物质对鱼类毒性分级标准,硫丹对草鱼为剧毒。 The acute toxicity of endosulfan(Endosulfan) to grass carp(Ctenopharyngodon idellus) was studied.The median lethal concentration LC50 of the endosulfan for the grass carp was found 3.82 μg/L in 24 h,2.52 μg/L in 48 h,1.86 μg/L in 72 h and 1.42 μg/L in 96 h,with safe concentration(SC) of 0.33 μg/L.The test fish exposed to endosulfan showed increase in mortality with the increase in the concentration,indicating a significant dose-response relationship.According to Class standards on toxic chemicals in fish,endosulfan as highly toxic to fish should be paid particular attention in use to avoid harm to aquatic organisms.
出处 《水产科学》 CAS 北大核心 2012年第1期37-40,共4页 Fisheries Science
基金 国家自然科学基金资助项目(30670226) 重庆市自然科学基金资助项目(2007BB1373)
关键词 硫丹 草鱼 急性毒性 半致死质量浓度 安全质量浓度 endosulfan grass carp acute toxicity median lethal concentration safe concentration
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