Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Biological Sciences (2) Autor Gomes, Iracema David (2) Morado, Claudio Nona (2) Araujo, Francisco Gerson (1) Araújo, Francisco Gerson (1) Martins, Thiago Estevan Parente (1) Paumgarten, Francisco José Roma (1) Mais... Palavra-chave 2.03.00.00-0 Ecologia condition factor (1) Ecologia aplicada Ethoxyresorufin-O-deethylase (EROD) activity (1) Fishes (1) Geophagus brasiliensis (1) Hepatosomatic index (1) Micronuclei (1) Monitoring (1) Pimelodus maculatus (1) Polycyclic aromatic hydrocarbons (PAHs). Monitoramento ambiental usando peixes (1) Rivers. Ecologia de peixes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2017 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Induced CYP1A activity and DNA damage in fish from the middle Paraíba do Sul River basin, southeastern Brazil Biological Sciences Morado, Claudio Nona; Martins, Thiago Estevan Parente; Araujo, Francisco Gerson; Paumgarten, Francisco José Roma; Gomes, Iracema David. The Paraíba do Sul River (PSR) drainage basin in Southeastern Brazil covers one of the most industrialized and densely populated regions of the country. The impact of chemical contamination on the PSR basin seems to be more pronounced in its middle reach where a number of potentially polluting plants are located. In this study, we used hepatic EROD activity - a biomarker of exposure to CYP1A-inducing pollutants (e.g. PAHs, PCDD/Fs, PCBs) - and the incidence of micronucleated erythrocytes (Mn) in the peripheral blood - a biomarker of effects of DNA-damaging agents (e.g. PAHs) - to evaluate the effects of pollution on two native fish species, Geophagus brasiliensis and Pimelodus maculatus. Results showed that the incidence of Mn and EROD in G. brasiliensis... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecologia aplicada Ethoxyresorufin-O-deethylase (EROD) activity; Geophagus brasiliensis; Micronuclei; Pimelodus maculatus; Polycyclic aromatic hydrocarbons (PAHs). Monitoramento ambiental usando peixes. Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/36666 The use of biomarkers for assessing effects of pollutant stress on fish species from a tropical river in Southeastern Brazil Biological Sciences Morado, Claudio Nona; Araújo, Francisco Gerson; Gomes, Iracema David. Biomarkers are measurements within an organism that respond to environmental effects and are used as tools in bioassessment programs since they reflect physiological changes induced by exposure to pollutants. The hepatosomatic index (HSI) and the condition factor (CF) in three fish species Geophagus brasiliensis, Hypostomus affinis and Hypostomus auroguttatus were used to assess effects of pollutant stress in a tropical river during two seasons (dry and wet). Fish from the least disturbed sites had the lowest condition factor (CF) and the lowest HSI, whereas those from sites near pollutant discharges had the highest CF and HSI. Higher HSI and lower CF occurred during the dry season. It is suggested that species adapted to stressful conditions take... Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.03.00.00-0 Ecologia condition factor; Hepatosomatic index; Fishes; Monitoring; Rivers. Ecologia de peixes. Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34293 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco