中文摘要：

研究了急性染毒条件下,镉（Cd^2＋）在河南华溪蟹（Sinopotamon henanense）主要组织器官中的积累效应.实验设对照组、3个Cd^2＋浓度组（14.5 mg/L、29 mg/L和58 mg/L）和3个时间段（1 d、3 d和5 d）.活体解剖,取肝胰脏、鳃、卵巢和肌肉进行消化并测定Cd^2＋含量.结果表明,Cd^2＋的积累具有明显的组织差异性,积累量由高到低的顺序是：鳃〉肝胰腺〉肌肉〉卵巢.镉对蟹体的毒性作用具有一定的“浓度-效应”和“时间-效应”关系,即随着染毒镉浓度的升高,或处理时间的延长,Cd^2＋在组织器官中的积累也随之增加,呈现不同的变化趋势.

英文摘要：

Freshwater crab, Sinopotamon henanense, were acutly exposed to the waterborne Cd^2＋ and the Cd^2＋ levels were examined. The crabs were divided into three treated groups and one control. The samples were exposed to the Cd^2＋ solution for 1 day, 3 days and 5 days, then were dissected lively. Cadmium accumulation in gills, hepatopancreas, muscle and ovary were examined with flame atomic absorption spectrophotometry method. The results showed that Cd^2＋ was selectively accumulated in different organs. The accumulation of each organ decreased in turn. gill 〉 hepatopancrea 〉 muscle 〉 ovary. The bioaccumulation of Cd^2＋ in S. henanense had the concentration-effect relationship, ie, the more the concentration increased,the more the bioaccumulation was. But the different time-effect relationships about the bioaccumulation of the S. henanense were found because of the different organs.