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: akan.williams@covenantuniversity.edu.ng |
| 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.
