Comparison of PCBs concentration in skin and mussel tissues of Esox lucius & Cyprinus carpio with PCBs concentration in Anzali Wetland (Abkenar) in autumn and winter 2009-2010

Document Type : Animal environment

Authors

1 Deputy of Marine Environment, Environmental Protection Agency, Tehran

2 Department of marine Biology, Faculty of Marine Science And Technology, North Tehran Branch, Islamic Azad University, Tehran, Iran

3 Marine Biology Dept., Faculty of Marine Science and Oceanography, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran

Abstract

This research is to determine the level of PCBs in skin and muscle of Esox Lucius & Cyprinus carpio in the west part of Anzali wetland (Abkenar) in autumn 2009 to winter 2010. For sampling of water, sediment, suspended particles in water and also catch Esox Lucius and Cyprinus carpio fishes four sampling sites were selected in Abkenar each season. Nine fish samples were caught from each species and biometry was done for the samples (for determination of total and standard weight and length). Collected samples of water, sediment, suspended particles and fishes were transferred to the laboratory in standard condition (MOOPAM) and then muscles and skins of the fishes were removed. After preparation, extract and clean up the samples, analyses of PCBs were carried out using Gas Chromatography (GC-ECD) with Ni63 ionization detector. The most dangerous isomers of PCBs (PCB 28, 52, 101, 138, 153, 180) which are used as marine pollution indicators especially in coastal areas such as ports and creeks have been surveyed in skin and muscle tissues. Maximum concentration of these dangerous isomers is related to the isomer with more CL number (PCB 153 &138) in skin and muscle of Esox lucius and cyprinus carpio. But the maximum concentration in water, sediment and suspended particles is related to the isomers with less CL number (PCB52).

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