Determination of DDT pesticide in muscle tissues of Cyprinus carpio, Rutilus frisii kutum & Liza auratas fish in southern coastal regions of Caspian Sea

Subject Areas : Marine Biology

P. Nejatkhah Manavi ¹ , E. Shirvani Mahdavi ² , M. Esmaeili Bidhendi ³

1 - Marine Biology Dept., Faculty of Marine Science and Technology, Islamic Azad University Tehran North Branch
2 - Marine Environment Dept., Faculty of Marine Science and Technology, Islamic Azad University, Tehran North Branch
3 - Marine Biology Dept., Faculty of Marine Science and Technology, Islamic Azad University Tehran North Branch

Received: 2014-05-13 Accepted : 2014-11-26 Published : 2014-12-21

Keywords: Organochlorine pesticides, DDT, Cyprinus carpio, Rutilus frisii kutum, , Liza auratas, southern coastal region of Caspian Sea,

Abstract :

This investigation was carried out in 2013 to measure the concentration ofagricultural organochlorine pesticide DDT in muscle tissues of three fish speciesincluding Cyprinus carpio, Rutilus frisii kutum & Liza auratas in eight stations insouthern coast of the Caspian Sea (Bandar Torkaman, Khazarabad Sari,Fereydunkenar, Chalous, Kiashahr, Bandar Anzali, Hashtpar and Astara), Iran. In eachstation, five fish samples per species were caught and the concentration of thepesticide were measured by gas chromatography – electron capture detector (GCECD)in each of them. The average amount of DDT in C. carpio, R. frisii kutum & L.auratas were 0.11 ±0.24, 0.17 ±0.25 and 0.163 ±0.25 ng/g fresh weight,respectively. The most contaminated stations in terms of DDT contamination wasKiashahr (averagely, 0.64 ±0.02 ng/g based on fresh weight). In all stations, amountof DDT was lower than the maximum residue limit (0.28 mg/g fresh weight).Moreover, the level of the pesticide, DDT, in muscle tissue of the fish from all stationswas not higher than acceptable daily intake (ADI). The levels of DDT in studied fishesare significantly lower than in 2008.