Subashini P, Manavalaramanujam R, Ramesh M, Geetha N
Unit of Pollution Biology, Department of Zoology, Bharathiar University, Coimbatore-641 046, India.
J Environ Sci Eng. 2005 Jan;47(1):65-8.
The toxicity of chromium sulphate on plasma electrolytes (Na+, K+, Cl-) level and Na+, K(+)-ATPase activity of an economically important fish, Cyprinus carpio var. communis was evaluated. During sublethal treatment, plasma sodium level was increased, whereas plasma chloride level decreased throughout the experimental period. Plasma potassium level increased upto 10th day and then declined in the rest of the study period. The Na+, K(+)-ATPase activity decreased upto 15th day of treatment and slowly recovered showing significant increase upto 25th day of treatment. The significant changes in the plasma electrolytes levels and Na+, K(+)-ATPase activity can serve as a valuable biomarker of pollutant exposure and effects.
评估了硫酸铬对一种具有重要经济价值的鱼类——鲤鱼（Cyprinus carpio var. communis）的血浆电解质（Na+、K+、Cl-）水平以及Na+、K(+)-ATP酶活性的毒性。在亚致死处理期间，整个实验期内血浆钠水平升高，而血浆氯水平下降。血浆钾水平在第10天前升高，然后在研究期的剩余时间下降。Na+、K(+)-ATP酶活性在处理至第15天降低，然后缓慢恢复，至处理第25天显著升高。血浆电解质水平和Na+、K(+)-ATP酶活性的显著变化可作为污染物暴露和影响的有价值生物标志物。
