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International Journal of Fauna and Biological Studies

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e-ISSN : 2347-2677, p-ISSN : 2394-0522

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International Journal of Fauna and Biological Studies

2017, Vol. 4 Issue 6, Part A
Histopathological studies of selected organs of Sarotherodon galilaeus (Linnaeus, 1758) in Igun gold mining reservoir and Opa freshwater reservoir, south western, Nigeria
Author(s): Komolafe Olaniyi Olusola, Obayemi Oluwadamilare Emmanuel, Awodiran Michael Olufemi and Oladimeji Tofunmi Elizabeth
Abstract: 
Histological changes in the gills, fillet and liver of Sarotherodon galileaus in Opa and Igun reservoirs were used to evaluate the impact of heavy metals in the fish organs. Fresh fish samples of S. galileaus were collected from Opa and Igun reservoirs and identified in the laboratory. Techniques based on histological analyses were done on the tissues and photomicrographs taken using digital binocular compound LED microscope. In Opa and Igun reservoirs, the gills of S. galilaeus showed rupture and lifting of epithelium. The gills also showed shortening and hyperplasia of lamellae in Igun reservoir compared to Opa reservoir. The fillet of S. galilaeus in both reservoirs revealed muscular atrophy and splitting while necrosis was observed in Igun reservoir compared to Opa reservoir. The liver of S. galilaeus in the two reservoirs showed hepatopancreas degeneration while splitting at the wall of central vein, hypertrophy, degeneration and vascular congestion were observed only in the liver of S. galilaeus of Igun reservoir. The alterations were comparatively severe in the organs of S. galilaeus in Igun reservoir to Opa reservoir.
Pages: 48-54  |  489 Views  12 Downloads
How to cite this article:
Komolafe Olaniyi Olusola, Obayemi Oluwadamilare Emmanuel, Awodiran Michael Olufemi and Oladimeji Tofunmi Elizabeth. Histopathological studies of selected organs of Sarotherodon galilaeus (Linnaeus, 1758) in Igun gold mining reservoir and Opa freshwater reservoir, south western, Nigeria. International Journal of Fauna and Biological Studies. 2017; 4(6): 48-54.
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International Journal of Fauna and Biological Studies