The Factors Affecting Heavy Metal Levels in the Muscle Tissues of Whiting ( Merlangius merlangus ) and Red Mullet ( Mullus barbatus )

摘要

This study aims to determine heavy metal accumulation levels in the muscles tissues of two economically mostimportant demersal fish species in the Eastern Black Sea, Turkey, red mullet (Mullus barbatus) and whiting (Merlangiusmerlangus), and evaluate the effects of fish species, sampling locations, fishing season and size groups on heavy metalaccumulation levels. Chromium (Cr), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As),cadmium (Cd) and lead (Pb) concentrations in fish muscle samples were measured with Inductively Coupled PlasmaMass Spectrometry (ICP-MS). Co, Zn, As and Cd accumulation levels in both species differed significantly (P<0.05).The metal concentrations of muscle tissues of both species, in general, were higher during summer and autumn. In thestudy, the differences in concentrations levels of As and Pb in whiting, Co, Cu, and Pb in red mullet muscle tissues weresignificantly related to fishing locations. The results of metal concentrations were compared with various legal limitssuch as Turkish Food Codex (TFC 2011), European Communities Commission Regulation (EC 2006) and Food andAgriculture Organization (FAO 1983) and the obtained metal levels of fish muscle tissues of both species were found tobe below the limit values which are a threat to human health.