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Volume :15 Issue : 2 1988      Add To Cart                                                                    Download

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.

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