Data/hora: 11/06/2024 07:00:48

Provedor de dados: | Zoologia
País: | Brazil
Título: | Aspectos reprodutivos de Poecilia vivipara (Bloch &amp;amp; Schneider) (Poeciliidae) da Lagoa Rodrigo de Freitas, Rio de Janeiro, Brasil
Autores: | Mendonça,José P.; Andreata,José V.
Data: | 2001-12-01
Ano: | 2001
Palavras-chave: | Poeciliidae; Poecilia vivipara; Reproduction; Viviparity.
Resumo: | Poecilia vivipara (Bloch &amp;amp; Schneider. 1801) is a species that lives in the Rodrigo de Freitas lagoon, a coastal lagoon in the city of Rio de Janeiro. The objective of this study was to increase the knowledge about reproductive aspects of P. vivipara population including: the female size when it begins reproduction, the number of offsprings per gestation, embrionary development stages and the number of pregnant females. The results show that P. vivipara reproduces throughout the whole year with its first maturation occurring at 29 mm. The proportion found of females to males was 3:1. Embryos showed four developmental stages until birth with sexual differentiation occurring after 15mm.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400001
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81752001000400001
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.18 n.4 2001
Fonte: | info:eu-repo/semantics/openAccess