Ca^(2+)对鱼类EOG的影响及其解毒作用的探讨  

Effects of Ca2+ on fish's EOG and Exploration of detoxified

作　　者：柴敏娟[1] 陈荣[2] 黄志勇[3] 

机构地区：[1]厦门大学海洋系,厦门361005 [2]厦门大学环科中心 [3]中国科学院微生物研究所

出　　处：《福建水产》1999年第4期7-13,共7页Journal of Fujian Fisheries

基　　金：国家自然科学基金项目(批准号:39770102);福建省自然科学基金项目(C96005号)

摘　　要：研究四种浓度Ca^(2+)溶液对罗非鱼嗅电图(electro-olfactogram,简称EOG)的影响,探讨Ca^(2+)对重金属中毒鱼的解毒效应,并讨论其可能机制。结果表明,①Ca^(2+)对罗非鱼EOG具双重效应;②Ca^(2+)能使重金属中毒鱼的EOG幅值增高,反映其具有一定的解毒作用,效果顺序为Hg^(2+)>Cu^(2+)>Zn^(2+)>Cd^(2+);③Ca^(2+)对Cu^(2+)+Zn^(2+)混合液也具一定解毒作用。The effects of Ca2+ with four different concentrations on the electro-olfactogran (EOG) of fish (Oreochromis Sp.) are investigated by electrophysiological method. The paper discusses detoxification of Ca2+ and possible mechanism in the poisoned fish of heavy metal. The results indicate as follow:(1) Ca2+ has dual effect on the EOG of the fish. (2) The amplitude of EOG can be increased by Ca2+ in the polluted fish of single heavy metal, and the result shows Ca2+ to poisoned fish take on some detoxification, in addition, the sequence of detoxification is Hg2+>Cu2+>Zn2+>Cd2+. (3) Ca2+ also reduce certain toxicity in the poisoned fish of Cu2++Zn2+ mixture.

关 键 词：Ca²⁺ Cu²⁺ Zn²⁺ Cd²⁺ Hg²⁺ EOG 解毒 

分 类 号：X174[环境科学与工程—环境科学]