The study of heavy metal accumulation in muscle tissue of Vimba bream (Vimba vimba) in the Siah Darvishan River, Guilan province, Iran

In this study, concentration of ten metals (As, Fe, Hg, Zn, Pb, Se, Cd, Cu, Mn, Ni) in muscle tissue of 20 Vimba bream (Vimba vimba) Caught with cast net from Siah Darvishan River, Guilan province, Iran were investigated by Varian Atomic absorption spectroscopy. The lowest and highest mean accumulation of metals were observed, as follows: Zinc 19.55 - 23.15, Iron 11.50 - 13.41, Copper 1.58 - 1.80, Manganese 1.45 - 1.66, Lead 0.56 - 0.67, Arsenic 0.45 - 0.53, Selenium 0.39 - 0.48, Nickel 0.26 - 0.29, Cadmium 0.16 - 0.19 and Mercury 0.059 - 0.071 microgram per gram dry weight, respectively. According to the results of this research, mean concentrations of all metals in the muscle tissue of vimba bream, except for Arsenic (0.490 ± 0.042), Lead (0.602 ± 0.056) and Manganese (1.557 ± 0.098) were found to be lower than determined threshold limit value of FAO/WHO international standard.