不同温度下镉对倒刺鲃的急性毒性试验  

Acute toxicity test of cadmium to Spinibarbus denticulatus at different temperatures

作　　者：吴祥庆[1] 黎小正[1] 杨姝丽[1] 吴明媛[1] 陈静[1] 兰柳春[1] 秦振发[1] 黄鸾玉[1] 

机构地区：[1]广西水产研究所/广西渔业病害防治环境监测和质量检验中心,广西南宁530021

出　　处：《广东农业科学》2013年第18期115-116,126,共3页Guangdong Agricultural Sciences

基　　金：广西科学研究与技术开发计划项目(桂科攻1123006-5)

摘　　要：在不同水温条件下,采用静水式鱼类毒性试验法,研究镉对倒刺鲃的急性毒性效应。结果表明,在12(±1)℃条件下,镉对倒刺鲃的24、48、72、96 h半数致死浓度分别为14.38、7.18、4.11、3.16 mg/L;在25(±1)℃条件下,镉对倒刺鲃的24、48、72、96 h半数致死浓度分别为10.68、5.77、3.66、2.16 mg/L;两种温度下镉对倒刺鲃的质量安全浓度分别为0.0316、0.0216 mg/L。依据相关分级标准,镉对倒刺鲃属于中毒物质。The acute toxicity o f cadmium （Cd2＋） to Spinibarbus denticulatus was studied with the static water fish toxicity test method at different water temperatures. The results showed that, at 12 （±1）℃, the LCs0 of 12, 24, 48, 96 h for cadmium to S.denticulotus were 14.38 mg/L, 7.18 mg/L, 4.11 mg/L and 3.16 mg/L, while at 25（±1）℃, the LCs0 of 12, 24, 48, 96 h were 10.68 mg/L, 5.77 mg/L, 3.66 mg/L and 2.16 mg/L. At the 2 kinds of temperature, the safe concentrations were 0.0316 mg/L and 0.0216 mg/L respectively. According to the grading standards, the cadmium was medium toxic to S.denticulatus.

关 键 词：镉 倒刺鲃 急性毒性 半数致死浓度 

分 类 号：S941.91[农业科学—水产养殖]