Type of spawning and fecundity of Astyanax schubart Britski, 1964 (Pisces, Characiformes, Characidae), in Ibitinga Reservoir, São Paulo State, Brazil

Authors

  • Arlete Mota RODRIGUES Pesquisador Cientí­­fico -  Base de Pesqueira Ictiológicas de Barra Bonita - Divisão de Pesca Interior - Instituto de Pesca
  • Ricardo Amaro dos SANTOS Pesquisador Cientí­­fico- Seção de Controle e Orientação da Pesca-Divisão de Pesca Interior - Instituto de Pesca
  • Maria Teresa Duarte GIAMAS Pesquisador Cientí­­fico- Seção de Biologia Aquática -Divisão de Pesca Interior - Instituto de Pesca - CPA/SAA
  • Elmar Cardozo CAMPOS Pesquisador Cientí­­fico- Seção de Controle e Orientação da Pesca-Divisão de Pesca Interior - Instituto de Pesca
  • Jaime José Casari da CAMARA Pesquisador Cientí­­fico- Seção de Controle e Orientação da Pesca-Divisão de Pesca Interior - Instituto de Pesca

Keywords:

Astyanax schubarti, , reproduction

Abstract

This paper describes the fecundity and type of spawning behavior of Astyanax schubarti in Ibitinga Reservoir (21° 46' S - 48° 59' W), São Paulo State, collected from June 1989 to May 1990. A total of 31 mature females was examined and the average fecundity resulted was 4,924 ovocytes. For determination of type of spawning, 145 females were used. It was observed that the spawning is discontinuous, with annual periodicity and higher frequency in December - January.

Published

2018-09-13

Most read articles by the same author(s)

<< < 1 2