三种常用农药对中华绒螯蟹幼蟹的急性毒性研究 |
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引用本文: | 李赫,宋文华,李文宽,富丽静,姚福向,胡宗云,张涛,张健.三种常用农药对中华绒螯蟹幼蟹的急性毒性研究[J].鲑鳟渔业,2013(6):44-47. |
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作者姓名: | 李赫 宋文华 李文宽 富丽静 姚福向 胡宗云 张涛 张健 |
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作者单位: | 辽宁省淡水水产科学研究院,辽宁省水生动物病害防治重点实验室,辽宁辽阳111000 |
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基金项目: | 公益性行业(农业)科研专项-稻-渔耦合养殖技术研究与示范(201203081-7) |
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摘 要: | 在水温20-23℃、pH7.5条件下,采用半静态法研究了阿维菌素、毒死蜱和三唑磷对体质量(6.3±0.9)g中华绒螯蟹(Eriocheir sinensis)幼蟹的急性毒性。结果表明:阿维菌素对幼蟹24、48、72、96h的半致死质量浓度分别为126.02、95.82、82.74、73.44mg·L^-1;毒死蜱对幼蟹24、48、72、96h的半致死质量浓度分别为0.73、0.65、0.56、0.49mg·L^-1;三唑磷对幼蟹24、48、72、96h半致死质量浓度分别为5.56、4.49、3.88、3.62mg·L^-1。三种药物对中华绒螯蟹幼蟹的毒性大小依次为:毒死蜱〉三唑磷〉阿维菌素。
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关 键 词: | 中华绒螯蟹 阿维菌素 毒死蜱 三唑磷 急性毒性 |
Acute Toxicity of Three Pesticides to Juvenile Chinese Mitten Crab(Eriocheir sinensis ) |
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Authors: | LI He SONG Wen-hua LI Wen-kuan FU Li-jing YAO Fu-xiang HU Zong-yun ZHANG Tao ZHANG Jian |
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Institution: | (Key Laboratory for Prevention and Control of Aquatic Animal Diseases in Liaoning Province, Freshwater Fisheries Science Institute of Liaoning Province, Liaoyang 111000, China ) |
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Abstract: | The acute toxicity of avermectin, chlorpyrifos and triazophos to juvenile Chinese mitten crab(Eriocheir sinensis) with body weight (6.3±0.9)g was studied at water temperature of 20-23℃and pH 7.5 by a semi-static test method. The results showed that the median-lethal concentration of avermectin was found to be 126.02mg·L^-1 for 24h, 95.82 mg·L^-1 for 48h, 82.74 mg·L^-1 for 72h and 73.44mg·L^-1 for 96h. The median-lethal concentration of chlorpyrifos was shown to be 0.73 mg·L^-1 for 24h, 0.65 mg·L^-1 for 48h, 0.56mg·L^-1 for 72h and 0.49 mg·L^-1 for 96h. The median-lethal concentration of triazophos was 5.56 mg·L^-1 for 24h, 4.49 mg·L^-1 for 48h, 3.88mg·L^-1 for 72h and 3.62mg·L^-1 for 96h. The acute toxicity order of the three pesticides to Chinese mitten crab juveniles was ranged as chlorpyrifos〉triazophos〉avermectin. |
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Keywords: | Chinese mitten crab avermectin chlorpyrifos triazophos acute toxicity |
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