2015, Vol. 2 Issue 5, Part E
Utility of biomarkers in the marine catfish Arius nenga – A common food fish of Kerala – for Environmental Assessment
Author(s): Sreelekshmy S.G, Miranda M.T.P, D’cruz F.G, Rajesh B.R
Abstract: In the present work, the utility of biomarkers in fish for assessing the environmental status was evaluated. The Chavara – Panmana coastal belt in Kollam, Kerala receives effluents from the major industries located along the coast. Histological investigation of various tissues (gill, liver and kidney) of the common food fish Arius nenga – a resident species – reveal severe alterations such as fusion of gill lamellae, hypertrophy and hyperplasia of epithelial cells and severe degeneration, aggregation of melano macrophage cells (MMC) in the liver and kidney. Significant haematological changes such as decrease in Hb, PCV, RBC and MCHC levels and increased WBC, MCH and MCV levels were observed.
Pages: 269-272 | 583 Views 6 Downloads