Abstract
Cd, Pb and Zn concentrations were determined in muscle and liver of Capoeta trutta collected from northern Khuzestan province from Dez River (southwest of Iran) during March, 2012. Heavy metal concentrations varied significantly depending on the type of the tissue. Generally, showed the lowest levels of Cd and Pb and Zn metals in muscle tissues. Significant differences were observed in the concentrations of Pb and Zn, but nosignificant differences were observed between the concentration of Cd in muscle tissue and the liver. It was concluded that the level of Zn heavy metals in muscles and liver of the fish were within acceptable limits by WHO standards but concentration of Cd and Pb higher than acceptable limits by WHO standard. The main reason for pollution entering the agricultural and domestic effluents to the river. * Corresponding Author: Niloofar Mojoudi niloofar.moujoudi@gmail.com
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