4种重金属离子对厚壳贻贝幼贝的急性毒性  

Acute Toxic Effects of Four Heavy Metalson Juveniles of Mytilus coruscus Gould

作　　者：周光锋[1] 王志铮[2] 杨阳[2] 林武俊[2] 何杰[2] 

机构地区：[1]中国海洋大学水产学院 [2]浙江海洋学院渔业学院,浙江舟山316004

出　　处：《浙江海洋学院学报（自然科学版）》2007年第4期391-394,共4页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：浙江省农业科技攻关项目(2006C32009);浙江省高校中青年学科带头人科研基金

摘　　要：2007年8月间在浙江海洋学院水产养殖实验室内,开展了Zn2+、Cu2+、Hg2+、Cr6+对厚壳贻贝幼贝的急性毒性试验。结果表明:Zn2+、Cu2+、Hg2+、Cr6+对厚壳贻贝幼贝96 h的半致死质量浓度依次为2.333 mg/L,0.194 mg/L,0.120 mg/L,14.600 mg/L。厚壳贻贝幼贝对Zn2+、Cu2+、Hg2+、Cr6+的安全质量浓度分别为0.233 mg/L,0.019 mg/L,0.012 mg/L,1.460 mg/L。各重金属离子毒性强度为Hg2+>Cu2+>Zn2+>Cr6+。最后,还就Zn2+、Cu2+、Hg2+、Cr6+对厚壳贻贝幼贝的急性致毒效应与死亡跃变特征、厚壳贻贝幼贝对Zn2+、Cu2+、Hg2+、Cr6+的安全浓度进行了分析与探讨。The thesis studied on the acute toxicity of Cr^6＋,Zn^2＋,Hg^2＋ on juvenile Mytilus coruscus were carried out under the water temperature of （27.2±1.0） ℃. The results showed that the median lethal concentrations （LC50） of Zn^2＋, Cu^2＋, Hg^2＋and Cr^6＋ for 96 h to juvenile Mytilus coruscus were 2.333 mg/L, 0.194 mg/L, 0.120 mg/ L and 14.600 mg/L respectively, safety concentrations（SC） of Zn^2＋, Cu^2＋ Hg^2＋and Cr^6＋ for 96 h were 0.233 mg/L, 0.019 mg/L, 0,012 mg/L and 1.460 mg/L respectively; the order of the toxicity of these heavy metals was Hg^2＋〉 Cu^2＋〉Zn^2＋〉Cr^6＋ in turn. Finally, the thesis talked about the acute toxicity effects, SC of Zn^2＋、Cu^2＋、Hg^2＋ and Cr^6＋ on juvenile Mvtilus coruscus.

关 键 词：Zn^2+、Cu^2+、Hg^2+、Cr^6+急性毒性 厚壳贻贝幼贝 

分 类 号：S912[农业科学—水产科学]