Journal of Marine Biology & Oceanography ISSN: 2324-8661

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Research Article, J Mar Biol Oceanogr Vol: 2 Issue: 1

Distribution of Chlorinated Pesticides in Shellfishes from Lagos Lagoon, Nigeria

Akan B. Williams1*, Olusegun O. Ayejuyo2 and John P. Unyimadu3
1Environmental Chemistry Research Group, Department of Chemistry, Covenant University, Ota, Nigeria
2Department of Chemistry, University of Lagos, Lagos, Nigeria
3Nigerian Institute of Oceanography and Marine Research, Victoria Island, Lagos, Nigeria
Corresponding author : Akan B. Williams
Environmental Chemistry Research Group, Department of Chemistry, Covenant University, Ota, Nigeria
E-mail: [email protected]
Received: November 16, 2012 Accepted: January 16, 2013 Published: January 21, 2013
Citation: Williams AB, Ayejuyo OO, Unyimadu JP (2013) Distribution of Chlorinated Pesticides in Shellfishes from Lagos Lagoon, Nigeria. J Mar Biol Oceanogr 2:1. doi:10.4172/2324-8661.1000106

Abstract

Distribution of Chlorinated Pesticides in Shellfishes from Lagos Lagoon, Nigeria

Shellfishes namely Ocypoda africanus, Penaeus notialis and Procambarus clarkii were collected from Lagos Lagoon and analysed for chlorinated pesticides because they are the most abundant group of  aquatic sediment macro-fauna within tropical areas and have the capability to concentrate in their tissues pesticide residues from sediments and water. Sampling was conducted between December 2008 and September 2009 during the dry and wet seasons. The shellfishes were subjected to cold extraction with petroleum ether/acetone (1:1 v/v) mixture and clean-up on silica gel adsorbents. The samples were analysed for aldrin, dieldrin, endrin, DDT, heptachlor, HCH, endosulfan, chlordane and methoxychlor. The detection and determination of the pesticide residues were performed by gas chromatography.

Keywords: Chlorinated pesticides; Lagos lagoon; Ocypoda africanus; Penaeus notialis; Procambarus clarkii

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