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Metal concentrations in tissues of the Black Sea fish Mugil auratus from Sinop-Icliman, Turkey

Ankara University, Faculty of Veterinary Medicine, Department of Pharmacology and Toxicology, 06110-Ankara, Turkey filazi{at}veterinary.ankara.edu.tr

Ruhtan Baskaya

Erzurum Military Chemistry Laboratories, Erzurum, Turkey

Cavit Kum

Sahver Ege Hismiogullari

Ankara University, Faculty of Veterinary Medicine, Ankara, Turkey

Levels of five heavy metals [copper (Cu), lead (Pb), cadmium (Cd), chromium (Cr) and nickel (Ni)] were evaluated in liver and muscle tissues of fish (Mugil auratus) collected from the Black Sea at Sinop-Icliman, Turkey. Sampling and analysis methods are described. Variations of heavy metal concentrations with seasons are discussed. Cr and Ni concentrations were below the limits of detection (<0.05 and 0.1 ug/g dry weight) in all tissues and seasons. Cu, Pb and Cd were detected within these limits, as mg/kg dry weight, in liver tissue: 0.49-1.30, 0.60-1.21 and 0.15-0.50, and in muscle tissue: 0.30-1.00, 0.57-1.12 and 0.10-0.40, respectively. Cu, Pb and Cd concentrations in these tissues were elevated and the highest heavy metal concentrations were found in the liver. While Cu, Pb and Cd concentrations were highest in fish tissues collected in August 2000, the lowest concentrations of these metals were observed in fish tissues collected in May 2000. Pb had the highest level observed in fish tissues. According to the Turkish Food Codex Regulation's residue limits, the cadmium level determined in fish tissues was high (0.1 mg/g) and the lead level, especially in liver tissue, was high in August (1 mg/ g), while other metals (Cu, Cr and Ni) were within the maximum residue limits.

Key Words: Black Sea • fish • metal

Human & Experimental Toxicology, Vol. 22, No. 2, 85-87 (2003)
DOI: 10.1191/0960327103ht323oa


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