低浓度甲基汞对鲤鱼生长及生理生化指标的影响  

EFFECT OF LOW CONCENTRATION METHYLMERCURIC CHLORIDE ON THE GROWTH, PHYSIOLOGICAL AND BIOCHEMICAL INDEX OF Cyprinus Carpio

作　　者：蔺玉华[1] 卢健民[1] 富惠光[1] 赵淑敏 

机构地区：[1]中国水产科学研究院黑龙江水产研究所,哈尔滨150070 [2]哈尔滨市环境监测中心站,150076

出　　处：《水产学杂志》1998年第2期8-12,共5页Chinese Journal of Fisheries

摘　　要：水体甲基汞（浓度10μg／L）染毒鲤鱼（秋片），一个月内汞处理鱼出现增重均6％，继续染毒2个月生长受到抑制。毒性实验结果表明：此剂量染毒一个月的鲤鱼血浆渗透压、血糖、和甲状腺激素T3含量与对照组鱼相比均未见显著差异。仅鳃丝线粒体Na+－K+－ATPasc活性在染毒2周时出现下降（P＜O．05）。染毒一个月时，汞染毒鱼的血浆某些离子浓度出现变化：血浆Na+明显降低（P＜0．01），血浆K+和Mg2+升高，PO和CI-下降值分别出现在21天和7天的染毒鲤鱼（P＜0．05）。病理组织切片观察：肝组织边缘个别细胞体积增大，细胞变圆形。The Cyprinus carpio (six - month - old fingerling) were exposed to concentrations ofmethylmercury chloride containing 10μg/1 in water for one month. The increase of weight of treated fishwas about 6%. The growth was inhinbited continuousely to exposive for 2 months.The results showed that both the Plasma osmolality and the blood glucose did not change. Theactivity of Na - K - ATPase in gill filaments motochondia were inhibited by mereuly treated fish duringexposive for two weeks (P < 0.05). The change of plasma elecctrolyte concetrations of exposed fish wasapparent during one month. The plasma sodium significantly decreased(P < 0.01 ); the Plasma potassiumand magnesium increased;phmphate and chloride decreased duriug 3 weeks and 1 week, respectively(P< 0.05).The Pathophysiology of exposive fish was observed that the volume of a few liver cells at edge becamebiger than that of the control cells. the shape changed into circular.

关 键 词：甲基汞 鲤鱼 生长 生理生化指标 

分 类 号：S965[农业科学—水产养殖]