Determination of organochlorine pesticides in sediment of Caspian Sea in coastal part of Mazandaran province and the survey of their possibility effects on fish feeding benthic matters

Subject Areas : New Technologies in Aquaculture Development

Received: 2021-02-07 Accepted : 2021-02-07 Published : 2015-02-20

Keywords: Keywords: OCPs, Caspian Sea environment, Bed sediments, Mazandaran coastal part,

Abstract :

Abstract[1] To determine and measurement of organochlorine pesticides (OCPs) were done from sediments samples in southern part of Caspian Sea (coastal part of Mazandaran province) with emphasis on fish feeding from benthic animals during spring and summer seasons (2008) in 10 m depth at Tonekabon, Noushahr, Babolsar and Amirabad stations. The results of OCPs compounds shown that the maximum concentration of OCPs compounds such as Lindane, DDT, DDE, Dieldrin, Heptachlor, b-BHC, b-Endosulfan and Endrin were 4.43, 0.76, 0.74, 0.74, 0.22, 0.11, 0.1, 0.04 mg/kg of d.w., respectively. The minimum concentration of OCPs compounds that detected such as DDT, DDE, Dieldrin, b-BHC, Lindane, b-Endosulfan and Heptachlor were 0.06, 0.03, 0.05, 0.04, 0.05, 0.03 and 0.06 mg/kg of d.w., respectively. The statistical results on stations group shown that there are not any correlations coefficient between mean ranking with different OCPs compounds and different stations (P>0.05). But, in evaluation with seasons group shown that the two chemicals such as DDT and Dieldrin have strong positive correlation coefficient and DDE compound has very strong positive correlation coefficient. The maximum percentage of chemicals compounds and OCPs concentration were detected in agricultural season. * Corresponding Authors; Email: [e-mail]