Bioaccumulation of heavy metals in tissues of the gibel carp Carassius gibelio: Example of Marmara Lake, Turkey

Abstract

Within the scope of this study, heavy metals presence (Al, Cr, Ni, Cu, As, Cd, Hg, Pb) in water samples and liver, gills and muscle tissue of gibel carp Carassius gibelio caught in Marmara Lake was analyzed seasonally. It was determined that there was not any difference seasonally with regard to heavy metals studied in lake waters (p > 0.05). Mineralization of fish tissues was made by microwave-wet decomposition. To evaluate heavy metal concentrations in water and tissue samples, method of inductively coupled plasma—mass spectroscopy (ICP-MS) was applied. TORT 2 lobster hepatopancreas was used as certified reference matter in this study. According to obtained results, bioaccumulation rates for gills were found as Cu > Cd > Ni > Pb > Cr > Al > As > Hg, for liver and muscle tissues they were found as Cu > Cd > Ni > Cr > Pb > Al > As > Hg. It was proved that the most bioaccumulated heavy metal was Cu and the least bioaccumulated was Hg for all of the studied tissues. © 2014, Pleiades Publishing, Ltd.