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	Provedor de dados Biota Neotropica (2) Autor Casatti,Lilian (2) Pereira,Danusa C. (1) Rocha,Fabíola C. (1) Palavra-chave Upper Rio Paraná (2) Armored catfishes (1) Conservation (1) Diet (1) Ecomorphology (1) Habitat partitioning (1) Reproduction (1) River continuum concept (1) Stream fishes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2005 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Habitat use by two species of Hypostomus (Pisces, Loricariidae) in southeastern brazilian streams Biota Neotropica Casatti,Lilian; Rocha,Fabíola C.; Pereira,Danusa C.. In this study, habitat use of the armored catfishes Hypostomus ancistroides and Hypostomus sp. was investigated in 21 streams from the Upper Rio Paraná system in São Paulo State, Brazil, a pasture dominated region. The abundance of Hypostomus sp. was positively correlated with the amount of riffles and riparian vegetation condition, whereas H. ancistroides abundance was negatively correlated with riparian vegetation condition. Thirteen ecomorphological attributes analyzed by principal component analysis showed that when compared to H. ancistroides, Hypostomus sp. presented a wider mouth and more flattened body, suggesting an adapted body to faster waters. The most abundant populations of Hypostomus sp. were predominantly associated with good riffle... Tipo: Info:eu-repo/semantics/article Palavras-chave: Armored catfishes; Upper Rio Paraná; Ecomorphology; Diet; Habitat partitioning. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032005000300012 Fish assemblage structure in a first order stream, southeastern Brazil: longitudinal distribution, seasonality, and microhabitat diversity Biota Neotropica Casatti,Lilian. This study was carried out on a first order stream in the Morro do Diabo State Park, southeastern Brazil. Three equidistant stream stretches - upper, middle, and lower - were chosen for underwater observations and fish collections that were performed in the dry (June and September 2000) and wet seasons (December 2000 and March 2001). Of the 18 fish species documented, 11 were considered resident year round. Phalloceros caudimaculatus, Hypostomus nigromaculatus, Hisonotus francirochai, Trichomycterus diabolus, and Hypostomus ancistroides represented 90% of the collected specimens. The highest richness and abundance occurred during the wet season. In general, the longitudinal addition of species follows the addition of microhabitats. Sexually mature... Tipo: Info:eu-repo/semantics/article Palavras-chave: Upper Rio Paraná; Stream fishes; Conservation; Reproduction; River continuum concept. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032005000100009 Registros recuperados: 2 Primeira ... 1 ... Última

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