不同温度下镉对倒刺的急性毒性试验-广东农业科学.PDF

广东农业科学 2013 年第18 期 115 不同温度下镉对倒刺 的急性毒性试验 吴祥庆 黎小正 杨姝丽 吴明媛 陈 静 兰柳春 秦振发 黄鸾玉 渊广西水产研究所/广西渔业病害防治环境监测和质量检验中心 广西南宁 530021冤 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遥 结果表明 在12渊依1冤益条件下 镉 对倒刺鲃的24尧48尧72尧96 h半数致死浓度分别为14.38尧7.18尧4.11尧3.16 mg/L 曰在25渊依1冤益条件下 镉对倒刺鲃的24尧48尧72尧96 h半数 致死浓度分别为10.68尧5.77尧3.66尧2.16 mg/L 曰两种温度下镉对倒刺鲃的质量安全浓度分别为0.0316尧0.0216 mg/L 遥 依据相关分级标 准 镉对倒刺鲃属于中毒物质遥 关键词 镉曰倒刺鲃曰急性毒性曰半数致死浓度 中图分类号 S941.91 文献标识码 A 文章编号 1004-874X渊2013冤18-0115-02 Acute toxicity test of cadmium to Spinibarbus denticulatus at different temperatures WU Xiang-qing, LI Xiao-zheng, YANG Shu-li, WU Ming-yuan, CHEN J ing, LAN Liu-chun, QIN Zhen-fa, HUANG Luan-yu (Guangxi Fishe ries Research Instifute/G uangxi Inspection Cente r for Disease Preve ntion and Control of Env ironme ntal Monitoring and Quality of Fishe ries, Nanning 530021, China) 2+ Abstract: The acute toxicity o f cadmium (Cd ) to Spinibarbus denticulatus was studied with the static water fish toxicity test method at different water temperatures. The results showed that, at 12 (依1)益, the LC50 of 12, 24, 48, 96 h for cadmium to S.de nticulatus were 14.38 mg/L, 7.18 mg/L, 4.11 mg/L and 3.16 mg/L, while at 25(依1)益, the LC50 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. Key words: Cd; Spinibarbus de ntic ulatus; acute tocicity; median lethal conce