HISTOLOGICAL EXAMINATION OF HEPATIC CELLS OF CLARIAS GARIEPINUS: AN ECOTOXICOLOGICAL EVALUATION OF MGBUOBA FISH POND
Allison, Theodore Athanasius and *Paul, Chikwuogwo wokpeogu
ABSTRACT
Background: Ecotoxicological assessment the aquatic life has become an urgent need and an integral part of human survival. As such this study was undertaken to assay the status of the fishes bred and sold for consumption in commercial fish farms. Materials and Methods: The sampling involved harvesting of table-sized fish: twenty fishes from MGBUOBA and ten fishes from ARAC. The histological assessment involved the determination of the qualitative and semi-quantitative analysis of the liver cells of the harvested fishes. Results: The following results were obtained for Circulatory Disturbance (CD) [ Haemorrhage 22.0% for ARAC, 24.3% for Mgbuoba; Vacuolation 40.0% ARAC, 34.0% Mgbuoba]; Regressive Change (RC) [ Necrosis 16.0% ARAC, Mgbuoba 3.9%]; Foci of Cellular Alteration (FCA) [Vacuolated Foci 4.0 ARAC, Mgbuoba 27.2%, Necrotic Foci 18.0% ARAC, Mgbuoba 10.7%]. Average percentage prevalence 20.0% ARAC and 20.02% Mgbuoba. Conclusion: Assessment of the depth of alterations in the Liver of the fishes indicates that the fishes were exposed to pollutants and it is speculative that the pollution could have ensued from poor management or inadequate facility.
Keywords: Liver, ARAC, Haemorrhage, Mgbuoba.
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