Genotoxic effect of heavy metals on Astyanax lacustris in an urban stream

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dc.creatorSilva, Emanoelle Pereira da
dc.creatorSouza, Marcelino Benvindo de
dc.creatorCotrim, Carlos Filipe Camilo
dc.creatorCosta, Andreya Gonçalves
dc.creatorLucena, Matheus Mendonça
dc.creatorAntoniosi Filho, Nelson Roberto
dc.creatorPereira, Julião
dc.creatorFormiga, Klebber Teodomiro Martins
dc.creatorSilva, Daniela de Melo e
dc.date.accessioned2024-06-19T13:42:04Z
dc.date.available2024-06-19T13:42:04Z
dc.date.issued2020-09-18
dc.description.abstractUncontrolled urbanization growth contributes to the pollution of aquatic environments. Heavy metals released by domestic and industrial effluents can negatively affect aquatic organisms. This study aimed to evaluate the effect of environmental pollutants, such as metals, on fish DNA damage, in stretches of an urban stream. Specimens of the Neotropical fish, Astyanax lacustris, were exposed in situ for 96 h along the Antas stream, a Brazilian aquatic system deteriorated by anthropogenic factors. Water and sediment samples were collected simultaneously for physicochemical and heavy metal analyses. The comet assay was performed as a biomarker of genotoxicity. Fish located downstream had a higher frequency of DNA damage than in the reference site. We found concentrations of Cr and Ni above acceptable levels in sediment samples. Generally, Ba, Mn, Mg, Zn, Cr, and Ni were the elements most associated with genotoxic damage. Water and sediment of the Antas stream showed genotoxic potential in A. lacustris according to the urbanization gradient, demonstrating the importance to prevent the release of environmental pollutants, especially heavy metals in urban areas.
dc.identifier.citationSILVA, Emanoelle Pereira da et al. Genotoxic effect of heavy metals on Astyanax lacustris in an urban stream. Heliyon, London, v. 6, n. 9, e05034, 2020. DOI: 10.1016/j.heliyon.2020.e05034. Disponível em: https://www.cell.com/heliyon/fulltext/S2405-8440(20)31877-6?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2405844020318776%3Fshowall%3Dtrue. Acesso em: 26 abr. 2024.
dc.identifier.doi10.1016/j.heliyon.2020.e05034
dc.identifier.issne- 2405-8440
dc.identifier.urihttp://repositorio.bc.ufg.br//handle/ri/24633
dc.language.isoeng
dc.publisher.countryGra-bretanha
dc.publisher.departmentInstituto de Química - IQ (RMG)
dc.rightsAcesso Aberto
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectEnvironmental science
dc.subjectEnvironmental analysis
dc.subjectEnvironmental chemistry
dc.subjectEnvironmental pollution
dc.subjectEnvironmental toxicology
dc.subjectFish Heavy metals
dc.subjectDNA damage
dc.subjectPollution Comet assay
dc.titleGenotoxic effect of heavy metals on Astyanax lacustris in an urban stream
dc.typeArtigo

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