Histopathological Studies of Gills, Liver and Gonads of Clarias gariepinus and Oreochromis niloticus Collected from Rivers Ureje and Ogbese in Ado-Ekiti, Nigeria

Authors: Fagbuaro O , Ola-Oladimeji FA , Ekundare OV and Abolaji TR

DOI: 10.23880/izab-16000238

Volume 3, Issue 5

Abstract

This study investigated the histopathology of the gills, liver and gonad of Clarias gariepinus and Oreochromis niloticus collected from Rivers Ureje and Ogbese in Ekiti state. The results obtained from the analysis of water sampled from the two aquatic environments indicate that the quality of water varies greatly between the two study areas. Histological alterations were observed in the liver, gills and gonad of fish from both rivers, including circulatory disturbances such as telangiectasia and epithelial lifting, hyperplasia of mucous cells and epithelial cells between secondary lamellae, structural alterations in the form of fusion and branching of primary and secondary lamellae, and regressive changes in the form of intracellular alterations within gill epithelial cells. The results of this study indicated that Clarias gariepinus and Oreochromis niloticus from the two rivers are indeed responding to some stressors which should be monitored and regulated to ensure sustainable living and conservation of aquatic biodiversity and maintenance of human health.

Keywords: Clarias Gariepinus; Oreochromis Niloticus; Fish; River Ogbese; River Ureje

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