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International Journal of Fisheries and Aquatic Studies
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E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2018, Vol. 6, Issue 4, Part B

Sewage Effluents of Kuroor Stream as a Concern for the Gonadal and Hepatic Histopathological Damage in a Fresh Water Fish Oreochromis Mossambicus


Author(s): Arya PD and Binitha RN

Abstract: Water pollution induces histopathological changes in different internal organs of fish and other water organisms. As an indicator of exposure to contaminants, histology represents a useful tool to assess the degree of pollution, particularly for sub-lethal and chronic effects. Here an attempt has been done to evaluate the histological damages induced by the sewage effluents in Kuroor stream in the liver and gonads of fish Oreochromis mossambicus. The Kuroor stream is a natural drinking water source of the Kothamangalam municipality, Kerala, India. The stream is highly polluted due to in flow of solid and liquid waste (SLW) and is found to be non potable. To study the direct effect of sewage effluents adult fish were collected from the study site and brought to the laboratory and anaesthetized. The liver and gonads were dissected out for histological examination. To study the indirect effect of sewage effluents the fish acclimatized in the laboratory were exposed to the polluted water of the Kuroor stream for various time periods. The histological studies showed that the fish caught from study site showed disrupted hepatocytes, vaculation and pyknotic nuclei. In gonads the testis consists of low sperm count, increased interstial fibrosis, in ovaries follicular margin disturbed, reduced secondary oocyte etc. The fishes exposed to polluted water the liver consists of disarraray of hepatic chords, cytoplasm vaculations, and pyknotic nuclei. In gonads the testis shows decrease in size and number of interstitial cells, spermatocytes and spermatozoa were rarely observed.

Pages: 87-91  |  478 Views  16 Downloads

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How to cite this article:
Arya PD, Binitha RN. Sewage Effluents of Kuroor Stream as a Concern for the Gonadal and Hepatic Histopathological Damage in a Fresh Water Fish Oreochromis Mossambicus. Int J Fish Aquat Stud 2018;6(4):87-91.
International Journal of Fisheries and Aquatic Studies