Concentration of heavy metal (Cd, Pb, Ni, Hg) in muscle, gill and liver tissues of Barbus xanthopterus in Karoon River

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Abstract

We determined bioaccumulation of heavy metals (Cd, Pb, Ni and Hg) in the muscle,
gill and liver organs of Barbus xanthopterus in summer 2009 in Karoon River, south west
of Iran. Gill net was used to sample 48 random size fish specimens from Karoon River
downward of Ahwaz city (Shekariyeh 3 village). The tissues were extracted and the elements
were determined using atomic absorption spectrophotometer. Concentrations of heavy
metals Cd, Pb, Ni , Hg in muscle tissue of Barbus xanthopterus were 1.679, 2.37, 1.16,
1.29mg/kg dry wt and in gill were 2.17, 2.92, 1.44, 1.34mg/kg dry wt and in liver were
1.92, 2.79, 1.31, 1.43mg/kg dry wt, respectively. All the results were statistically significant
(P 0.05). The concentrations of heavy metals were higher than standards of the World
Health Organization (WHO) in the muscle tissue of Barbus xanthopterus in Karoon
River.

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Iranian Scientific Fisheries Journal
Volume 19, Issue 4
May and June 2011
Pages 97-106

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