Chromium (Cr), nickel (Ni) and zinc (Zn) levels in edible muscle and skin tissues of cyprinus carpio l. in çamligöze Dam Lake, Sivas, Turkey

Abstract

In this study, Cr, Ni and Zn levels were determined by atomic absorption spectrophotometry in edible muscle and skin tissues of Cyprinus carpio in Çamligöze Dam Lake located at Central Anatolian region of Turkey. The maximum levels were found to be 0.12 (Cr), 2.15 (Ni), 0.51 (Zn) ?g/g in the muscle and 0.15 (Cr), 2.07 (Ni), 1.97 (Zn) ?g/g in the skin of Cyprinus carpio. It was determined that Ni was the highest metal in tissues. The highest Cr and Zn levels were determined in the skin of Cyprinus carpio, whereas the highest Ni levels were measured in the muscle. The heavy metal accumulation orders for the tissues were as follows: Ni>Zn>Cr in Çamligöze Dam Lake. There was important statistical differences, especially at the level of zinc accumulation in tissues (p<0.001). There was a significant and positive correlation between age, total length, weight and metal levels for Cr (r>0.25, p<0.05) in the muscle and skin of Cyprinus carpio in Çamligöze Dam Lake. The levels of the tested Cr, Ni and Zn were within the acceptable limits of FAO.