Liza abu is a species of the Mugilidae family from rivers in Khoozestan Province of Iran. The present study was carried out to investigate contamination of heavy metals (Hg, Cd, Pb, Cu, Zn, Fe and Mn) in gill, liver and muscle in Liza abu from Karkheh and Bahmanshir rivers in Khoozestan, Iran, in winter 2010. Heavy metal levels in fish samples were analyzed by Perkin Elmer 4100 atomic absorption. The results show that the highest Hg, Cd, Pb, Cu, Mn, Zn and Fe concentrations in fish samples were 29.66, 518.66, 1057.66, 369.33, 696 μg/Kg/dw, 10.62, 13.26 mgKg-1dw. The highest and lowest concentration of heavy metals in tissues was done gill and muscle of Liza abu. Also, concentrations of heavy metals (mean±SD) in muscle, liver and gill of Liza abu from Bahmanshir river were higher than in Liza abu from Karkheh river (P<0.05), except for concentration of Fe that in Liza abu from Karkheh river were higher than in Liza abu from Bahmanshir river (P<0.05). The mean estimated concentrations for Cd, Hg, Cu and Zn in the present study were lower the International Standards for these metals as declare by the World Health Organization (WHO), Environmental Protection Agency (EPA) and Food and Drug Administration (FDA), but Pb higher than FAO and FDA.
کلید واژگان :Heavy metal, Liza abu, Karkheh, Bahmanshir, Khoozestan, Iran
ارزش ریالی : 300000 ریال
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