摘要
在水温为(22±1)℃的静水条件下,研究了辛硫磷和甲苯咪唑等2种常用水产杀虫剂对大鳞副泥鳅的急性毒性。结果表明,辛硫磷对大鳞副泥鳅的24 h、48 h和96 h半致死质量浓度分别为0.66 mg·L–1、0.55 mg·L–1和0.52 mg·L–1,安全质量浓度为0.11 mg·L–1;甲苯咪唑对大鳞副泥鳅的24 h、48 h和96 h半致死质量浓度分别为0.56 mg·L–1、0.54 mg·L–1和0.54 mg·L–1,安全质量浓度为0.15 mg·L–1。结果提示辛硫磷和甲苯咪唑对大鳞副泥鳅均属于高毒药物,因此在渔业生产中应严格控制该药物的使用浓度,避免其对水生态系统造成严重的危害。
In this study,the acute toxicity of phoxim and mebendazole on Paramisgurnus dabryanus was studied at water temperature of(22±1)℃by a static test method.The results showed that the median-lethal concentration(LC50)of phoxim was 0.66 mg·L–1 in 24 h,0.55 mg·L–1 in 48 h and 0.52 mg·L–1 in 96 h,and the safe concentration for usage was calculated as 0.11 mg·L–1.The LC50 of mebendazole was found to be 0.56 mg·L–1 in 24 h,0.54 mg·L–1 in 48 h and 0.54 mg·L–1 in 96 h,with safe concentration obtained as 0.15 mg·L–1.The results indicate phoxim and mebendazole are all highly toxic to the Paramisgurnus dabryanus,thus in order to reduce the adverse effects of these drugs on aquatic ecosystems,their dosage should be cautiously controlled when applied in aquaculture.
作者
管芳玲
熊六凤
方汉孙
张玉婷
蒋新杰
刘为民
梁惜梅
GUAN Fangling;XIONG Liufeng;FANG Hansun;ZHANG Yuting;JIANG Xinjie;LIU Weimin;LIANG Ximei(College of Environmental and Land Resource Management,Jiangxi Agricultural University,Nanchang 330045,China;College of Animal Science and Technology,Jiangxi Agricultural University,Nanchang 330045,China)
出处
《生态科学》
CSCD
2020年第6期25-29,共5页
Ecological Science
基金
江西省教育厅项目(GJJ180186)
江西省研究生创新专项资金项目(YC2019-S179)
江西省科技厅重点项目(9021107236)
国家自然科学基金项目(31602168)。
