摘要
本试验采用静水生物测试法,以蛇鮈(Saurogobio dabryi)为受试生物,以致死率为指标研究了不同质量浓度的重金属铜和锌对蛇鮈幼鱼的急性毒性,结果表明,铜、锌对蛇鮈的24、48、72、96小时LC50分别为0.91mg/L、0.69mg/L、0.56mg/L、0.49mg/L和39.63mg/L、36.06mg/L、32.43mg/L、28.77mg/L,安全质量浓度分别为0.12mg/L和8.96mg/L。铜对蛇鮈为高毒物质,锌对蛇鮈为低毒物质,蛇鮈对铜的耐受性低于对锌的耐受性。
Acute toxicity of the heavy metal copper and zinc with different density of quality to Longnose gudgeon was studied by static bioassays in this test. The results showed that the 24,48,72 and 96 -h LC50 values of copper and zinc to Longnose gudgeon were 0. 91mg/L, 0.69mg/L, 0. 56mg/L, 0. 49mg/L and 39.63 mg/L, 36. 06 mg/L, 32. 43 mg/L, 28.77 mg/L respectively, the safe concentrations were 0. 12 mg/L and 8.96 mg/ L. To Longnose gudgeon, copper was a high toxicant, while zinc was a low toxicant. The tolerance of Longnose gudgeon to copper was lower than that of zinc.
出处
《西昌学院学报（自然科学版）》
2007年第1期20-23,共4页
Journal of Xichang University(Natural Science Edition)
关键词
重金属
蛇鮈
安全浓度
Heavy mental
Longnose gudgeon
Safe concentration
