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	Provedor de dados BABT (1) Neotropical Ichthyology (1) Autor Azevedo,Marco Aurélio (2) Fialho,Clarice Bernhardt (2) Lampert,Vinicius Renner (2) Palavra-chave Fin-ray hooks (2) Reproductive period (2) Spawning type (2) Bryconamericus (1) Ecundity (1) Fecundity (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2007 (1) 2004 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Reproductive biology of Bryconamericus iheringii (Ostariophysi: Characidae) from rio Vacacaí, RS, Brazil Neotropical Ichthyology Lampert,Vinicius Renner; Azevedo,Marco Aurélio; Fialho,Clarice Bernhardt. In this paper we describe some aspects of the reproduction and development of secondary sexual characters of Bryconamericus iheringii, based on the analysis of 194 females and 210 males collected monthly in the rio Vacacaí (30º21'34"S and 54º18'48"W), from April 2001 to March 2002. The reproductive period occurred from September to January (spring and summer in the Southern Hemisphere), as described for other characids of the same area. The absolute fecundity mean was 933.71 ± 303.10 oocytes, and the relative fecundity mean was 0.36 ± 0.08 oocytes per mg of total weight, being the species a multiple spawner. There was no correlation between the values of GSI and variation of biotic (stomach repletion and hepatosomatic indexes) and abiotic data (rainfall,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Reproductive period; Ecundity; Spawning type; Fin-ray hooks. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000400003 Reproductive biology of Bryconamericus stramineus Eigenmann, 1908 (Ostariophysi: Characidae) from the Rio Ibicuí, RS, Brazil BABT Lampert,Vinicius Renner; Azevedo,Marco Aurélio; Fialho,Clarice Bernhardt. Reproduction of Bryconamericus stramineus was described based on the analysis of 208 females and 166 males collected monthly in the Rio Ibicuí, from April 2001 through March 2002. Reproduction occurred between September and December, with a lower peak in February. The mean absolute fecundity was 371.3 (± 244.6) oocytes and the mean relative fecundity was 0.35 (± 0.08) oocytes/mg of total weight and the fish was a multiple spawner. A weak correlation between GSI of males and day length was observed. Other parameters (stomach repletion and hepatosomatic index, rainfall and temperature) did not show any correlation with GSI. However, some of these factors might act as "starters" of gonadal maturation. The presence and frequency of fin ray hooks on the males... Tipo: Info:eu-repo/semantics/article Palavras-chave: Reproductive period; Fecundity; Spawning type; Bryconamericus; Fin-ray hooks. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700011 Registros recuperados: 2 Primeira ... 1 ... Última

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