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Volume :15 Issue : 2 1988
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Effect of cadmium on the cichlid fish, Oreochromis niloticus: behavioural and physiological responses
Auther : ALI S. AL-AKEL, M. J. K. SHAMSI, H. F. AL-KAHEM, M. ASGHAR CHAUDHARY AND Z. AHMAD
Department of Zoology, College of Science King Saud Unicersiry, P.O. Box 2455.
Riyadh 11451. Saudi Arabia
ABSTRACT
The effect of cadmium on the freshwater cichlid fish, Oreochromis niloricus was assessed. Various behavioural changes were observed when the fish was exposed to different concentrations (2, 4, 6 and 8 ppm) of cadmium. Its LC50 was 5.2 ppm. Remarkable depletions in 1iver:muscle glycogen and haemoglobin were observed with increasing concentrations of cadmium. It can be concluded that the aforesaid changes might be useful indicators of the toxic effects of cadmium in the environment.