The
concentrations of Cd, Pb, Ni and Hg were
determined in gill, liver and muscle of Barbus xanthopterus in down streams of Karoon and Dez Rivers
during summer 2009. Heavy metal concentrations
varied significantly, depending on the types of the tissue in fish species. The
levels of heavy metals such as Cd, Pb, Ni and Hg in the Barbus xanthopterus
of Karoon River were higher than in B...