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。
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.
出处
《水产学杂志》
CAS
2013年第6期44-47,共4页
Chinese Journal of Fisheries
基金
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)
关键词
中华绒螯蟹
阿维菌素
毒死蜱
三唑磷
急性毒性
Chinese mitten crab
avermectin
chlorpyrifos
triazophos
acute toxicity