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	Provedor de dados Biota Neotropica (3) Autor Medeiros,Elvio Sergio Figueredo (3) Ramos,Robson Tamar da Costa (2) Alencar,Thuanny Fernanda Braga (1) Beltrão,Gabriel de Barros Moreira (1) Diniz,Virginia Dantas (1) Farias,Rafaela Lima de (1) Lima,Jéssica Alcoforado de Sena (1) Ramos,Telton Pedro Anselmo (1) Silva,Márcio Joaquim da (1) Mais... Palavra-chave Aquatic insects (1) Caatinga (1) Conservation (1) Fish (1) Habitat structure (1) Inventory (1) Northeastern Brazil (1) Piranhas-Açu River (1) Riparian zone (1) Sampling effort (1) Temporary pools (1) Water management (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2015 (1) 2014 (1) 2009 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Analysis of the error associated with the subsampling of Chironomidae in an intermittent stream of semi-arid Brazil Biota Neotropica Farias,Rafaela Lima de; Alencar,Thuanny Fernanda Braga; Lima,Jéssica Alcoforado de Sena; Medeiros,Elvio Sergio Figueredo. Chironomidae is a common family in freshwaters, often occurring at high densities, which hinders the processing of large samples, given that time and labor are usually limited. The present study aims at evaluating the extent of the error related with the subsampling of Chironomidae from a larger sample with regard to the size of the individuals between a sample and the subsample. A total of 9195 chironomids were collected from three sites in an intermittent stream. Samples were taken using a D-shaped net (250 µm) on eight occasions. Individuals from each sample were homogenized in a gridded Petri dish and coordinates from lines and columns were randomly drawn. Individuals from the assigned coordinates were selected until 100 individuals or 10% of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Temporary pools; Sampling effort; Aquatic insects. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000100402 Ichthyofauna of Seridó/Borborema: a semi-arid region of Brazil Biota Neotropica Silva,Márcio Joaquim da; Ramos,Telton Pedro Anselmo; Diniz,Virginia Dantas; Ramos,Robson Tamar da Costa; Medeiros,Elvio Sergio Figueredo. The Seridó/Borborema region is located between the States Paraíba and Rio Grande do Norte and a priority area for conservation of the Caatinga. This region is under the hydrological influence of the middle portion of Piranhas-Açu River basin. Previous systematic inventories of the ichthyofauna of this Caatinga’s area are not significant. The Caatinga fish fauna is threatened due the advancement of historic anthropogenic activities, mainly agricultural. Furthermore, another relevant aspect is the recent governmental decision of transferring water from São Francisco River to other Northern river basins, which includes the Piranhas-Açu basin. This study performed a systematic survey of the Seridó/Borborema’s ichthyofauna. The sites were sampled during the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Inventory; Fish; Piranhas-Açu River; Caatinga; Northeastern Brazil. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300117 Effects of riparian vegetation on the structure of the marginal aquatic habitat and the associated fish assemblage in a tropical Brazilian reservoir Biota Neotropica Beltrão,Gabriel de Barros Moreira; Medeiros,Elvio Sergio Figueredo; Ramos,Robson Tamar da Costa. Riparian zones represent areas of strong biological, physical and chemical interaction between terrestrial and aquatic ecosystems. These areas are usually typified by high diversity of fauna, flora and environmental processes. The present study evaluates the littoral habitat structure and its fish fauna related to associations between presence and absence of natural riparian vegetal cover, in a reservoir in northeastern Brazil. Sampling was performed on marginal areas where riparian vegetation was present and where it had been removed for the plantation of sugar cane. For each type of marginal area three replicate sites were sampled during the wet season. Data on the habitat structure (submerged elements and substrate composition), fish and water quality... Tipo: Info:eu-repo/semantics/article Palavras-chave: Riparian zone; Habitat structure; Water management; Conservation. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000400003 Registros recuperados: 3 Primeira ... 1 ... Última

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