Data/hora: 03/06/2024 03:32:52

Provedor de dados: | 74
País: | Brazil
Título: | Cytogenotoxicity biomarkers in fat snook  Centropomus parallelus  from Cananéia and São Vicente estuaries, SP, Brazil
Autores: | Kirschbaum,Aline A.; Seriani,Robson; Pereira,Camilo D. S.; Assunção,Andrea; Abessa,Denis M. de Souza; Rotundo,Matheus M.; Ranzani-Paiva,Maria J. T.
Data: | 2009-01-01
Ano: | 2009
Palavras-chave: | Cytogenotoxicity; Nuclear abnormalities; Micronuclei; Centropomus parallelus.
Resumo: | The aquatic environment receives many contaminants that can induce damages at the molecular, biochemical, cellular and physiological levels.  Centropomus parallelus , an important food resource for local populations, is a predator fish that feeds on small fishes and benthic invertebrates, thus being vulnerable to the bioconcentration and biomagnification processes. This study aimed to evaluate cytogenotoxic responses in erythrocytes from  C. parallelus  juveniles collected in the Cananéia and São Vicente estuaries, both in winter and in summer. After anesthesia, blood samples were collected by caudal puncture. Blood smears were prepared on glass slides and stained with May-Grünwald-Giemsa dye. Two thousand cells were analyzed per slide (1000x), and nuclear abnormalities (NA) and micronuclei (MN) were scored. The São Vicente sample showed MN and NA frequencies (%/1000 cells) of 0.325 and 3.575, in winter, and of 0.125 and 2.935 in summer respectively; the Cananéia sample showed frequencies of 0.0325 and 0.03, in winter, and of 0.065 and 0.355 in summer, respectively. The rates found in São Vicente were significantly higher than those found in Cananéia, evidencing that the levels of pollution in that estuary were high enough to induce genetic damages.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100023
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572009005000007
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.32 n.1 2009
Fonte: | info:eu-repo/semantics/openAccess