Heavy metal accumulation in Mullus barbatus, Merluccius merluccius and Boops boops fish from the Aegean Sea, Turkey.

The accumulation behaviour of copper, zinc, cadmium and lead concentrations in flesh, gills, liver and gonads of three commercial fish Mullus barbatus, Merluccius merliccius and Boops boops from the Aegean Sea in Turkey have been studied. Copper, zinc and lead concentrations in flesh were found low, while in gonads Cd was found high. Liver showed higher concentration of Cu than other fish organs. Gonads and liver recorded high concentrations of Cd. Liver and gills revealed high levels of Pb as compared to other fish organs. The organs of Boops boops revealed high accumulation of heavy metals as compared to other fishes. Heavy metals in the southern Aegean Sea were found to be higher around Cesme and Fethiye than the northern part. Concentration of heavy metals in the tested organs were within the allowable limit of world levels.