| 在不同盐度下氯氰菊酯对凡纳滨对虾的急性毒性效应研究 |
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| 引用本文： | 邱勇,严峰,曾嶒,熊泽泉.在不同盐度下氯氰菊酯对凡纳滨对虾的急性毒性效应研究[J].安徽农业科学,2012,40(32):15704-15705. |
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| 作者姓名： | 邱勇 严峰 曾嶒 熊泽泉 |
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| 作者单位： | 海南大学海洋学院,海南海口,570228;海南大学海洋学院,海南海口 570228;海南大学海洋生物学实验室海南,海南海口 570228;海南大学热带生物资源教育部重点实验室,海南海口 570228;华东师范大学生命科学学院,上海,2000622 |
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| 摘 要： | 目的]为不同盐度下氯氰菊酯的使用和调控提供科学依据。方法]采用静水生物法,研究了不同盐度下氯氰菊酯对凡纳滨对虾的急性毒性效应。结果]在盐度20和5下氯氰菊酯对凡纳滨对虾的24、48、72、96 h半致死浓度(LC50)分别为0.767、0.440、0.383、0.038 2μg/L和0.437、0.313、0.203、0.170μg/L。在中、低盐度下氯氰菊酯对凡纳滨对虾的安全浓度(SC)分别为0.038 2和0.017 0μg/L。结论]极低浓度的氯氰菊酯农药残留就可能会威胁凡纳滨对虾的养殖安全,应尽可能减少在虾塘及附近使用氯氰菊酯。
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| 关 键 词： | 凡纳滨对虾 氯氰菊酯 急性毒性 半致死浓度 安全浓度 |
Study on the Acute Toxicity of Cypermethrin on Litopenaeus vannamei in Different Salinity |
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| Institution: | QIU Yong et al(Ocean School,Hainan University,Haikou,Hainan 570228) |
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| Abstract: | Objective] The research aimed to provide scientific basis for the use and control of cypermethrin in different salinity.Method] Using static bioassay test,the acute toxicity effect of cypermethrin on Litopenaeus vannamei in different salinity were studied.Result] 24,48,72,96 h LC50 of cypermethrin to L.vannamei in the salinity of 20 and 5 were 0.767,0.440,0.383,0.038 2 μg/L and 0.437,0.313,0.203 and 0.170 μg/L respectively.In medium and low salinity,the safe concentration of cypermethrin to L.vannamei was 0.038 2 and 0.017 0 μg/L respectively.Conclusion] Very low concentrations of cypermethrin pesticide residues might threaten the safety of L.vannamei culture,so the use of cypermethrin should be reduced as possible in shrimp pond and its surrounding area. |
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| Keywords: | Litopenaeus vannamei Cypermethrin LC50 SC |
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