alexa Indices from Chrysicthys nigrodigitatus (Lacépède, 1803), Tilapia guineensis (Bleeker, 1862), Clarias gariepinus (Burchell, 1822) and Clarias anguillaris (Linnaeus, 1758) as Bioindicators of Organic Pollution in Ogun River, Southwest Nigeria
ISSN: 2332-2608

Journal of Fisheries & Livestock Production
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Research Article

Indices from Chrysicthys nigrodigitatus (Lacépède, 1803), Tilapia guineensis (Bleeker, 1862), Clarias gariepinus (Burchell, 1822) and Clarias anguillaris (Linnaeus, 1758) as Bioindicators of Organic Pollution in Ogun River, Southwest Nigeria

Olufelo OS1, Olufade OB2, Matilukuro YA2 Efuntoye MO2and Sowunmi AA1*

1Department of Plant Science and Applied Zoology, Olabisi Onabanjo University, Ago-Iwoye. Nigeria

2Department of Microbiology, Olabisi Onabanjo University, Ago-Iwoye, Nigeria

3Hydrobiology and Fisheries Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria

*Corresponding Author:
Sowunmi AA
Hydrobiology and Fisheries Unit
Department of Zoology, University of Ibadan
Ibadan, Nigeria
Tel: +234- 8054454529
E-mail: [email protected]

Received date March 05, 2016; Accepted date May 16, 2016; Published date June 05, 2016

Citation: Olufelo OS, Olufade OB, Matilukuro YA, Efuntoye MO, Sowunmi AA (2016) Indices from Chrysicthys nigrodigitatus (Lacépède, 1803), Tilapia guineensis (Bleeker, 1862), Clarias gariepinus (Burchell, 1822) and Clarias anguillaris (Linnaeus, 1758) as Bioindicators of Organic Pollution in Ogun River, Southwest Nigeria. J Fisheries Livest Prod 4:187. doi: 10.4172/2332-2608.1000187

Copyright: © 2016 Olufelo OS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The current health status of Ogun river Southwest Nigeria was investigated using body and derived indices from Chrysicthys nigrodigitatus, Tilapia guineensis, Clarias gariepinus and Clarias anguillaris. Quality of effluents from the two abattoir located at Isheri-Olofin and Lafenwa, and the adjacent receiving water of R. Ogun were evaluated. Physico-chemical parameters exceeded the NESREA (2011) national criteria for effluent and USEPA (2002) for aquatic life. NH3-N and PO43 indicated elevated levels of organic pollution but trace metal contents has direct implication for aquatic life. Reduction in growth indices of total length, standard length, total body weight and fecundity were observed in all the species compared with previous records. Derived indices of gonadosomatic index and Fultons’ condition factor (K) exhibited similar pattern. Liversomatic index (LSI) were elevated indicative of disruption in body mechanism of the fish species arising from pollution. The remaining indices of gonadal index (GI), visceral somatic index (VSI) and percentage dress out (PDO) were significant and first reports any species from Ogun river.

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