四种稻田农药对克氏原螯虾的急性毒性研究  

Acute toxicity of four pesticides in rice field to Procambarus clarkii

作　　者：徐滨[1] 朱祥云[1] 魏开金[1] 马宝珊[1] 

机构地区：[1]中国水产科学研究院长江水产研究所农业部淡水生物多样性保护重点实验室,武汉430223

出　　处：《淡水渔业》2014年第5期38-42,共5页Freshwater Fisheries

基　　金：公益性(农业)行业专项(201003070);公益性(农业)行业专项(201203081);中央级公益性科研院所基本科研业务费专项资金项目(2013JBFM21)

摘　　要：采用半静态方式水生生物急性毒性实验法,研究了在实验室常温条件下敌百虫、稻瘟灵、毒死蜱、阿维菌素四种稻田杀虫剂对克氏原螯虾(Procambarus clarkii)的急性毒性。结果显示,敌百虫、稻瘟灵、毒死蜱、阿维菌素对体重为(34.43±7.04)g克氏原螯虾的24 h半致死浓度(24 h LC50)分别为65.07、42.16、0.71、1.23mg/L,48 h半致死浓度(48 h LC50)分别为35.75、33.49、0.59、0.84 mg/L;96 h半致死浓度(96h LC50)分别为12.54、18.83、0.45、0.37 mg/L。其安全浓度分别为3.24、6.34、0.122、0.117 mg/L。根据国家标准和本实验数据可以看出,敌百虫和稻瘟灵对克氏原螯虾中毒,毒死蜱和阿维菌素对其高毒。The acute toxicity of four pesticides to Procambarus clarkii were studied under laboratory conditions and room temperature.The results showed the mean static acute 24 h LC50 of dipterex , isoprothiolane , chlorpyrifos , avermectin were 65.07, 42.16, 0.71, 1.23 mg/L respectively, while the mean static acute 48h LC50 were 35.75, 33.49, 0.59, 0.84 mg/L respectively , The mean static acute 96 h LC50 were 12.54 , 18.83 , 0.45 , 0.37 mg/L.The safe concentration of the crayfish to the four pesticides were 3.24 , 6.34 , 0.122 , 0.117 mg/L.According to the national standard and the ex-perimental data , trichlorfon and isoprothiolane belonged to the medium -toxic substances of P.clarkii, while avermectin and chlorpyrifos belonged to the high -toxic substances of P.clarkii.

关 键 词：克氏原螯虾(Procambarus clarkii) 杀虫剂 急性毒性 半致死浓度 安全浓度 

分 类 号：S931.3[农业科学—渔业资源]