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	Provedor de dados Biota Neotropica (1) Neotropical Ichthyology (1) Autor Callisto,Marcos (2) Hughes,Robert M. (1) Hughes,Robert Mason (1) Junqueira,Nara Tadini (1) Kaufmann,Philip Robert (1) Macedo,Diego Rodrigues (1) Martins,Isabela (1) Molozzi,Joseline (1) Pompeu,Paulo Santos (1) Sanches,Barbara (1) Santos,Gilmar Bastos (1) Souza,Rafael Couto Rosa de (1) Mais... Palavra-chave Physical habitat (2) Bioindicators (1) Disturbed sites (1) Environmental quality (1) Fish assemblages (1) Land use (1) Partial CCA (1) Reservoirs (1) Water quality (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2016 (1) 2015 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Influence of environmental variables on stream fish fauna at multiple spatial scales Neotropical Ichthyology Junqueira,Nara Tadini; Macedo,Diego Rodrigues; Souza,Rafael Couto Rosa de; Hughes,Robert Mason; Callisto,Marcos; Pompeu,Paulo Santos. ABSTRACT Effects of environmental variables at different spatial scales on freshwater fish assemblages are relatively unexplored in Neotropical ecosystems. However, those influences are important for developing management strategies to conserve fish diversity and water resources. We evaluated the influences of site- (in-stream) and catchment-scale (land use and cover) environmental variables on the abundance and occurrence of fish species in streams of the Upper Araguari River basin through use of variance partitioning with partial CCA. We sampled 38 1st to 3rd order stream sites in September 2009. We quantified site variables to calculate 11 physical habitat metrics and mapped catchment land use/cover. Site and catchment variables explained > 50% of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Disturbed sites; Fish assemblages; Land use; Partial CCA; Physical habitat. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300202 Ecological assessment of a southeastern Brazil reservoir Biota Neotropica Martins,Isabela; Sanches,Barbara; Kaufmann,Philip Robert; Hughes,Robert M.; Santos,Gilmar Bastos; Molozzi,Joseline; Callisto,Marcos. Reservoirs are artificial ecosystems with multiple functions having direct and indirect benefits to humans; however, they also cause ecological changes and influence the composition and structure of aquatic biota. Our objectives were to: (1) assess the environmental condition of Nova Ponte Reservoir, Minas Gerais state, southeastern Brazil; and (2) determine how the aquatic biota respond to disturbances. A total of 40 sites in the littoral zone of the reservoir were sampled to characterize physical and chemical habitat, land use, and benthic macroinvertebrate and fish assemblages. The predominant type of land cover near the reservoir was natural vegetation. A total of 29 fish species and 39 macroinvertebrate taxa were collected, including eight alien... Tipo: Info:eu-repo/semantics/article Palavras-chave: Reservoirs; Water quality; Bioindicators; Physical habitat; Environmental quality. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000100103 Registros recuperados: 2 Primeira ... 1 ... Última

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