Zn, Co, Cr, As, and genotoxic effects in the ichthyofauna species from polluted and non-polluted/protected estuaries of the São Paulo coast, Brazil
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2019
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The human impact on estuarine regions results in an increasing concentration of trace elements
in the environment, exposing aquatic organisms. In this study, Zn, Co, Cr, and As were determined in the
muscle tissue of some fish species from Santos-São Vicente (SSV), a recognized polluted region, and in
the Cananeia estuary (CAN). Genotoxicity was also determined for the evaluation of the chronic effect on
ichthyofauna, to enlarge the bank of environmental data regarding the effects of pollution, and to suggest
other fish bioindicator species that may contribute to monitoring programs. The obtained data showed
a similar profile of an accumulation of Co and Zn in Micropogonias furnieri and Chaetodipterus faber,
where: Santos Bay > CAN > inner area of SSV. A low frequency of micronucleus was observed. However,
in general, fish from the inner area of the SSV estuary presented more nuclear abnormalities than fish from
Santos Bay and CAN. In the inner area of SSV, Centropomus paralelus and Diapterus rhomneus showed
more changes than other fish species. It was possible to consider that the habits of each species, contributed
to a different profile of trace element accumulation, followed by the chemical components in the organism
offering different vulnerability.
Como referenciar
BRAGA, ELISABETE S.; AZEVEDO, JULIANA S.; KUNIYOSHI, LEONARDO; FAVARO, DEBORAH I.T. Zn, Co, Cr, As, and genotoxic effects in the ichthyofauna species from polluted and non-polluted/protected estuaries of the São Paulo coast, Brazil. Anais da Academia Brasileira de Ciências, v. 91, n. 4, p. 1-18, 2019. DOI: 10.1590/0001-3765201920190066. Disponível em: http://repositorio.ipen.br/handle/123456789/30854. Acesso em: 25 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.