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:: Volume 11, Issue 2 (2012) ::
IJFS 2012, 11 Back to browse issues page
Bioaccumulation of heavy metals Cu, Zn, and Hg in muscles and liver of the stellate sturgeon (Acipenser stellatus) in the Caspian Sea and their correlation with growth parameters
S. Heidary , J. Imanpour Namin *1 , F. Monsefrad
1- , javidiman@gmail.com
Abstract:   (14888 Views)
Bioaccumulation of Cu, Zn, Hg in muscles and liver tissues of stellate sturgeon (Acipenser stellatus) from the southern Caspian Sea was measured. Effects of condition factor (CF), age and hepatosomatic index (HSI) on metal accumulation were also determined. Some 40 stellate sturgeons were collected using gill nets in winter and spring 2007-2008 from the southern shores of the Caspian Sea. Total (TL) and fork (FL) length and weight of all specimens were measured. Cross sections of first ray of pectoral fins were used for age determination. Muscle and liver samples were taken and transported to the laboratory in ice packs and kept in -20 oC prior to analyses. In the laboratory samples were oven dried, digested with HClO3 and HNO3 and diluted with dionized water to 50cc to measure Cu, Zn, and Hg concentration with a flame spectrophotometer. Sequence of metals in Acipenser stellatus was Zn>Hg> Cu in muscle tissues and Zn> Cu> Hg in liver samples. Concentration of Zn was slightly in correlation with age (R= 0.3). A negative correlation was observed between Zn concentrations with condition factor (R= -0.3). Zn concentrations were negatively correlated in muscle tissues (R=-0.3). The results were compared to international standards proposed by MAAF, EEC and NHMRC. Our study showed that accumulation of heavy metals in sturgeon tissues was influenced by concentration of metals in sediment and the physiological state of fish.
Keywords: Acipenser stellatus, Heavy metals, Condition factor, Hepatosomatic index, Liver, Muscle
Full-Text [PDF 462 kb]   (7002 Downloads)    
Type of Study: Orginal research papers | Subject: Toxicology
ePublished: 2012/04/15
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Heidary S, Imanpour Namin J, Monsefrad F. Bioaccumulation of heavy metals Cu, Zn, and Hg in muscles and liver of the stellate sturgeon (Acipenser stellatus) in the Caspian Sea and their correlation with growth parameters. IJFS 2012; 11 (2) :325-337
URL: http://jifro.ir/article-1-531-en.html


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Volume 11, Issue 2 (2012) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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