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	Provedor de dados 103 (2) Autor Pompeu,Paulo S. (2) Fagundes,Daniela C. (1) Leal,Cecília G. (1) Souza,Marcela A. (1) Souza,Rafael C. R. (1) Palavra-chave Intraspecific differences (2) Characidium (1) Convergence (1) Divergence (1) Ecomorphological attributes (1) Environmental pressure (1) Freshwater fish (1) Habitat diversity (1) Habitat use (1) Morphology (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2014 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Ecomorphology of Astyanax species in streams with different substrates 103 Souza,Marcela A.; Fagundes,Daniela C.; Leal,Cecília G.; Pompeu,Paulo S.. In the present study, we assessed the ecomorphology of two species of Astyanax in streams with different substrates found in the Rio São Francisco Basin. The dominant substrate of each stream was defined as either "fine" (0 to 2 mm), "gravel" (2 to 250 mm), "rock" (> 250 mm), or "leaf bank". We analyzed a total of 22 ecomorphological attributes of Astyanax intermedius Eigenmann, 1908 (127 individuals) and Astyanax rivularis (Lütken, 1875) (238 individuals) adults. We detected significant ecomorphological differences between the populations of A. rivularis and A. intermedius from habitats with different types of substrates. However, the two species did not show the same morphological differences depending on the type of substrate. These results confirmed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Convergence; Divergence; Ecomorphological attributes; Freshwater fish; Habitat diversity; Intraspecific differences. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000100006 Ecological separation by ecomorphology and swimming performance between two congeneric fish species 103 Souza,Rafael C. R.; Pompeu,Paulo S.. ABSTRACT The high diversity of freshwater fish species reflects a great morphological plasticity. Understanding the relationship between swimming capacity, morphology and habitat use may be important to predict the chances of finding a species at an anthropized environment. The swimming capacity and morphological aspects of two sympatric species of Characidium, and for which spatial segregation in different hydraulic habitats is known, were compared in this study. Twenty-one individuals of Characidium fasciatum Reinhardt, 1867 and 23 individuals of Characidium cf. zebra Eigenmann, 1909 were captured and used for the evaluation of the swimming capacity and ecomorphological attributes. The swimming capacity of each species was obtained by measuring critical... Tipo: Info:eu-repo/semantics/article Palavras-chave: Characidium; Environmental pressure; Habitat use; Intraspecific differences; Morphology. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100322 Registros recuperados: 2 Primeira ... 1 ... Última

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