Heavy metal concentrations in the fish samples decreased in the sequence for the muscle as Fe > Cu > Pb > Ni > Cr > Cd, for the gill as Fe > Cu > Ni > Pb > Cr > Cd, for the stomach-intestine as Fe > Cu > Pb > Ni > Cr >Cd, for the air sac as Fe > Cu > Ni > Pb > Cd >Cr, for the heart as Fe > Cu > Ni > Pb > Cr >Cd and for the liver as Fe > Cu > Ni > Pb > Cr > Cd.