Fish species of the Centropomus genus are important food resources in Brazil. The species of this group are predators that feed on small fish and benthic invertebrates, and are therefore vulnerable to bioconcentration and the biomagnification of contaminants. As estuaries are continuously impacted by urbanization, the aim of the present study was to evaluate the quality of two brackish environments located in the Ilha do Maranhão, Brazil, by applying the Micronucleus Test with Centropomus undecimalis. Genotoxic lesions were detected in the erythrocytes using this test. Blood samples were collected through punctures of the gills to produce the blood extensions. The smear was stained with modified Rosenfield dye and 2,000 erythrocytes per fish were analyzed. The micronucleus values differed significantly between the two locations in the rainy season, showing that Centropomus undecimalis is more vulnerable to contamination in the Bacanga River Basin. In view of the results, the Micronucleus Test proved to be an effective tool for the evaluation of the environmental quality of areas, and the data generated in the study can contribute to conservation programs by local management authorities, as the biomarker used allows the evaluation of the health of the environment through two organisms.
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30 November 2018
INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2018 (ICCMSE 2018)
14–18 March 2018
Thessaloniki, Greece
Research Article|
November 30 2018
Micronucleus test in Centropomus undecimalis (BLOCH, 1972) for the assessment of the water quality of two Brazilian estuaries
Ligia Tchaicka;
Ligia Tchaicka
a)
1
Professora Doutora da Universidade Estadual do Maranhão, Departamento de Química e Biologia
, Programa de Pós-Graduação em Recursos Aquáticos e Pesca,São Luís, Brasil
a)Corresponding author:[email protected]
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Sildiane Martins Cantanhêde;
Sildiane Martins Cantanhêde
b)
2
Doutoranda em Ecologia Aquática e Pesca pela Universidade Federal do Pará
, Pará, Brasil
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Natália Jovita Pereira;
Natália Jovita Pereira
c)
3
Mestranda em Recursos Aquáticos e Pesca pela Universidade Estadual do Maranhão
, Programa de Pós-Graduação em Recursos Aquáticos e Pesca,São Luís, Brasil
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Raimunda Nonata Fortes Carvalho Neta;
Raimunda Nonata Fortes Carvalho Neta
d)
1
Professora Doutora da Universidade Estadual do Maranhão, Departamento de Química e Biologia
, Programa de Pós-Graduação em Recursos Aquáticos e Pesca,São Luís, Brasil
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Débora Martins Silva Santos
Débora Martins Silva Santos
e)
1
Professora Doutora da Universidade Estadual do Maranhão, Departamento de Química e Biologia
, Programa de Pós-Graduação em Recursos Aquáticos e Pesca,São Luís, Brasil
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a)Corresponding author:[email protected]
AIP Conf. Proc. 2040, 100003 (2018)
Citation
Ligia Tchaicka, Sildiane Martins Cantanhêde, Natália Jovita Pereira, Raimunda Nonata Fortes Carvalho Neta, Débora Martins Silva Santos; Micronucleus test in Centropomus undecimalis (BLOCH, 1972) for the assessment of the water quality of two Brazilian estuaries. AIP Conf. Proc. 30 November 2018; 2040 (1): 100003. https://doi.org/10.1063/1.5079158
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