Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon

dc.creatorMELO, Karina Motta
dc.creatorALVES, Ingrid Reale
dc.creatorPIECZARKA, Julio Cesar
dc.creatorDAVID, José Augusto de Oliveira
dc.creatorNAGAMACHI, Cleusa Yoshiko
dc.creatorGRISOLIA, Cesar Koppe
dc.date.accessioned2015-09-14T14:10:17Z
dc.date.available2015-09-14T14:10:17Z
dc.date.issued2013
dc.description.abstractThe frequency of spontaneous micronucleus (MN) formation in fish species needs to be determined to evaluate their usefulness for genotoxic biomonitoring. The definition of a good bioindicator takes into account the current knowledge of its metabolic traits as well as other factors including its feeding behavior and relationship to the environment. In this study, we compared the basal frequencies of micronucleated erythrocytes and nuclear abnormalities (NA) among different species of the fish Order Gymnotiformes (Rhamphichthys marmoratus, Steatogenys elegans, Sternopygus macrurus, Parapteronotus hasemani, Gymnotus mamiraua, Gymnotus arapaima, Brachyhypopomus beebei, Brachyhypopomus n. sp. BENN) sampled in several localities of the Eastern Amazon. A baseline of MN and NA frequency in these fish was determined, enabling the identification of potentially useful species as models for genotoxicity studies. Only one impacted sample collected at a site in the River Caripetuba showed a significant number of NAs, which may be due to the release of wastewater by neighbouring mining industries and by the burnt fuel released by the small boats used by a local community. Our results may provide support for further studies in areas of the Eastern Amazon affected by mining, deforestation and other anthropogenic activities.pt_BR
dc.identifier.citationMELO, Karina Motta et al. Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon. Genetics and Molecular Biology, São Paulo, v. 36, n. 3, p. 425-429, 2013. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000300018&lng=pt&nrm=iso>. Acesso em: 26 ago. 2015. <http://dx.doi.org/10.1590/S1415-47572013005000032>.pt_BR
dc.identifier.issn1415-4757
dc.identifier.urihttps://repositorio.ufpa.br/handle/2011/6880
dc.language.isoengpt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectPeixept_BR
dc.subjectBiomonitoramentopt_BR
dc.subjectGenotoxidadept_BR
dc.subjectGymnotiformespt_BR
dc.subjectPeixe-elétrico neotropicalpt_BR
dc.subjectPará - Estadopt_BR
dc.subjectAmazônia brasileirapt_BR
dc.titleProfile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazonpt_BR
dc.typeArtigo de Periódicopt_BR

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