Histopathological and genotoxic effects of pollution on Nile Tilapia (Oreochromis niloticus, Linnaeus, 1758) in the Billings Reservoir (Brazil).
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.
Department of Cell and Developmental Biology, Institute of Biological Sciences, University of São Paulo , São Paulo , Brazil .
Karina Fernandes Oliveira
KF
Rezende
Rubens Martins
RM
Santos
João Carlos Shimada
JC
Borges
Lígia Maria
LM
Salvo
José Roberto Machado Cunha
JR
da Silva
D000818:Animals; D001938:Brazil / Q000453:epidemiology; D023681:Cichlids / Q000235:genetics*; D004249:DNA Damage / Q000187:drug effects*; D005393:Fish Diseases / Q000139:chemically induced* / Q000453:epidemiology; D005880:Gills / Q000187:drug effects / Q000473:pathology; D015162:Micronucleus Tests; D012621:Seasons; D014874:Water Pollutants, Chemical / Q000633:toxicity*; D014881:Water Supply
D014874:Water Pollutants, Chemical
Biomarkers; fish; histological changes; micronuclei