Journal of Environmental Biology

Histophysiological responses in ovary and liver of Cyprinus carpio after short term exposure to safe concentration of mercuric chloride and recovery pattern

Sahar Masud, I.J. Singh* and R.N. Ram

Department of Fishery Biology,College of Fisheries, G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India

(Received: January 05, 2007 ; Revised received: July 22, 2007 ; Accepted: September, 27, 2007)

Abstract: Effect of short term (7 days) exposure to safe concentration of HgCl₂ (0.5 ppm) and changes 7 days after withdrawl of the treatment on histophysiology of ovary and liver in yearlings of Cyprinus carpio were assessed during active phase of reproductive cycle.  Noticeable degenerative histophysiological changes were observed in both ovary and liver after exposure which were more prominent in the group with abnormal behaviour. After withdrawl of the HgCl₂ treatment the recovery was apparent in both organs but was more appreciable in liver. These observations indicated that even safe concentration of HgCl₂ might not be fully devoid of deleterious influence on reproductive functions in Cyprinus carpio.   

Key words: Cyprinus carpio, Mercuric chloride, Toxicity, Ovary, Liver, Recovery

PDF of full length paper is available with author (* singhij2@rediffmail.com)

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