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	Provedor de dados BABT (2) Autor Aranha,José Marcelo Rocha (2) Braga,Marcelo Rennó (2) Vitule,Jean Ricardo (1) Vitule,Jean Ricardo Simões (1) Palavra-chave Blue tetra (1) Characins (1) Coastal stream (1) Distribution (1) East basin (1) Longitudinal segregation (1) Reproductive period (1) Serra do Mar (1) Tropical fish (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2008 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Population structure and reproduction of Deuterodon langei travassos, 1957 (Teleostei, Characidae) in a neotropical stream basin from the Atlantic Forest, Southern Brazil BABT Vitule,Jean Ricardo Simões; Braga,Marcelo Rennó; Aranha,José Marcelo Rocha. Aspects of the biology of D. langei were studied at different sites along a longitudinal gradient formed by the Ribeirão stream basin, a Neotropical stream of the Atlantic Forest, southern Brazil. Differences were observed in population structure and reproduction along the longitudinal gradient and during the study period. Juvenile fishes occurred in high abundance, mainly in the downstream site after the rainy months. Adults occurred mainly in the intermediate and upstream sites. During their life cycle, adults optimise their reproductive strategy by concentrating the reproductive period with total spawn in a short time interval before summer rains dragged the juvenile, larval forms and/or eggs downstream. The downstream site was characterized by a wide... Tipo: Info:eu-repo/semantics/article Palavras-chave: Characins; Tropical fish; Longitudinal segregation; Distribution; Reproductive period; Serra do Mar. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600014 Reproduction period of Mimagoniates microlepis, from an Atlantic Forest Stream in Southern Brazil BABT Braga,Marcelo Rennó; Aranha,José Marcelo Rocha; Vitule,Jean Ricardo. Mimagoniates microlepis was collected between January and December/2002. Three sample points were chosen at higher, medium and lower portions of Ribeirão river, located at the east of Paraná state. The reproduction period was observed by the frequency of gonad developmental stages, variation of the gonosomatic relation (RGS) and gonad condition (K). The average length at the first sexual maturity (L50) and the average length when 100% of individuals were adults (L100) were calculated. The intensity of the reproductive activity (IAR) was estimated at each sample point. The reproduction period started in the winter and ended at the end of spring. The high values of IAR encountered demonstrated that the reproductive activity occurred in the whole study area,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Coastal stream; Blue tetra; East basin. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200014 Registros recuperados: 2 Primeira ... 1 ... Última

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