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Textile Effluent Induced Genotoxic Effects and Oxidative Stress in Clarias gariepinus

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Author(s): S.O. Ayoola | B.O. Bassey | C.G. Alimba | E.K. Ajani

Journal: Pakistan Journal of Biological Sciences
ISSN 1028-8880

Volume: 15;
Issue: 17;
Start page: 804;
Date: 2012;
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Keywords: lipid peroxidation | Bio-indicator | Clarias gariepinus | oxidative stress | genotoxicity | textile effluent | pollution

ABSTRACT
Human and ecological disorder experienced in industrial settlements as a result of improper disposal of chemicals such as textile effluent calls for careful surveillance on the state of the environment. This study investigated the toxicity of textile effluent discharge using biochemical and cytogenetic responses to ascertain the acute and sub lethal effects on Clarias gariepinus. The 96 h LC50 of C. gariepinus exposed to the textile effluent was 8.203 ml L-1. Fourteen day exposures to 1, 2, 4 and 6 ml L-1 doses were conducted and several toxicological endpoints were evaluated. Sub lethal genotoxicity and biochemical study was also carried out for fourteen days. The genotoxicity studies utilized micronucleus test while the biochemical studies quantified serum anti-oxidant status Total Protein (TP), Catalase (CAT), Superoxide Dismutase (SOD) and Malondialdehyde (MDA) of the exposed fish. Toxicity factor indicates that the 96 h LC50 was significantly more toxic than the 24 h LC50 (p
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