Heavy metals in edible tissues of the brown shrimp Crangon crangon (Linnaeus, 1758) from the Southern Black Sea (Turkey)

Abstract

Abstract In the present study, heavy metal concentrations (Cd, Pb, Cu, Zn, Co, Mn, Ni and Fe) have been measured in edible tissues of the brown shrimp Crangon crangon (Linnaeus, 1758) collected from Samsun coasts in the Black Sea coast of Turkey in 2010. Variations of heavy metal concentrations with seasons are compared. Cd and Pb concentrations in C. crangon were the lowest heavy metal concentrations, while Fe concentrations were highest level observed in all seasons. The concentrations of Cd, Pb, Cu, Zn, Co, Mn, Ni and Fe were in the range of 0.228-0.481, 0.291-0.491, 5.85-14.77, 18-36, 0.24-0.61, 6-15, 2-6 and 30-58 μg.g-1 wet weight, respectively. In general the heavy metal findings in the brown shrimp were below the Turkish Food Codex, Commission Regulation (EC) and MAFF maximum permitted levels for human consumption. It is concluded that the brown shrimps are suitable biomonitors to assess changes in metal pollution in the coastal area of the Black Sea.

Keywords

• Key words: Heavy metal, Crangon crangon, Black Sea, food codex

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