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	Provedor de dados BABT (1) Neotropical Ichthyology (1) Pap. Avulsos de Zool. (São Paulo) (1) Autor Azevedo,Marco Aurélio (3) Lampert,Vinicius Renner (3) Fialho,Clarice Bernhardt (2) Palavra-chave Reproductive period (3) Spawning type (3) Fecundity (2) Fin-ray hooks (2) Bryconamericus (1) Ecundity (1) Inseminating fish (1) Small size characins (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2018 (1) 2007 (1) 2004 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 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 Non-seasonal reproduction in inseminating species of Mimagoniates (Characidae, Characiformes) from southern Brazil Pap. Avulsos de Zool. (São Paulo) Lampert,Vinicius Renner; Azevedo,Marco Aurélio. Abstract Some aspects of reproduction in two species of Mimagoniates, M. microlepis (Steindachner 1877) and M. rheocharis Menezes & Weitzman 1990 are herein described. Samples were taken monthly from January 1998 to February 1999 in two streams in the locality of Maquiné, Rio Grande do Sul, Brazil. Results from the analysis of hundreds of specimens of M. microlepis and M. rheocharis in two investigated sites indicated mature specimens and peaks of the gonadosomatic index (GSI) along the year. There was a negative and significant correlation between M. microlepis male’s GSI and water temperature. Females of the latter species and both sexes of M. rheocharis, in turn, showed no correlation with any of the tested parameters (relative stomach weight, day... Tipo: Info:eu-repo/semantics/article Palavras-chave: Inseminating fish; Small size characins; Reproductive period; Fecundity; Spawning type. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100201 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: 3 Primeira ... 1 ... Última

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