Histopathological and genotoxic effects of pollution on Nile Tilapia (Oreochromis niloticus, Linnaeus, 1758) in the Billings Reservoir (Brazil)

Author(s)

Oliveira Rezende, Karina Fernandes ; Santos, Rubens Martins ; Shimada Borges, Joao Carlos ; Salvo, Ligia Maria ; Machado Cunha da Silva, Jose Roberto

• Document type: Journal article
• Source: TOXICOLOGY MECHANISMS AND METHODS; v. 24, n. 6, p. 8-pg., 2014-09-01.

Abstract

The Billings Reservoir shows eutrophic waters due to the large amount of sewage, and consequently, the fish can be a problem for public health. Thus, this project aimed to analyze the histological gills and liver of Nile tilapia to verify morphological changes caused by environment, and the frequency of micronuclei was done, to observe the response to genotoxic activity. We observed histological alterations in gills and livers of Nile Tilapia classified as mild to severe, and the presence of micronucleus. The results enable better environmental monitoring and quality control of this species. (AU)

• FAPESP's process: 09/06777-1 - Morphologic alterations of Nile Tilapia (Oreochromis niloticus) exposed to euthrofized waters of Billings dam.
• Grantee: Karina Fernandes Oliveira Rezende
• Support Opportunities: Scholarships in Brazil - Master