Investigation of bioaccumulation of Mercury, Cadmium and Arsenic with chemical compositions in muscle of Cynoglossusarel from Hendijan Seaport

A comparative study was conducted on composition of protein, lipid and ash and concentration of metals As, Hg and Cd in muscle of Cynoglossus arel from Hendijan area in 2011. Ten samples of Cynoglossus arel were collected using trawl net. Concentration of Hg, As and Cd in the muscle of flat fish was 41.60±7.27, 73.30±7.50 and 189.02±21.40 µgkg-1 ww. Also composition of protein, lipid and ash in the muscle of this fish was determined; 16.58±0.54, 1.04±0.14 and 1.57±0.13 %. Comparison of the results showed significant difference between (P<0.05) concentration of Hg, As and Cd in the muscle of Cynoglossus arel. The highest correlation (R=0.964, P<0.05) was observed in the muscle of Cynoglossus arel between to Cd and As. In this study significant correlation was observed between concentration of Hg, As and Cd with chemical compositions, in the muscle of Cynoglossus arel (P<0.05). The highest correlation (R=0.972, P<0.05) was observed in the muscle of Cynoglossus arel between to As and protein. Also the lowest correlation (R=0.880 P<0.05) was observed in the muscle of Cynoglossus arel between to Hg and protein.