Spawning behaviour and fecundity of 'tambiú' Astyanax bimaculatus Linnaeus, 1758 (Pisces, Characiformes, Characidae), in ibitinga reservoir, São Paulo State, Brazil

Authors

  • Arlete Mota Rodrigues Instituto de Pesca
  • Elmar Cardozo Campos Instituto de Pesca
  • Ricardo Amaro dos Santos Instituto de Pesca
  • José Mandelli Junior Instituto de Pesca
  • Jaime José Casari da Camara Instituto de Pesca

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.1992.51998

Keywords:

Reproduction of fish, Fish, "tambiú", Astyanax bimaculatus

Abstract

This paper describes the fecundity and spawning behaviour of Astyanax bimaculatus, in Ibitinga Reservoir (21°46'S - 48°59'W), São Paulo State, collected from June 1989 to May 1990. 39 mature females were examined and the average fecundity resulted 12276 ± 8483 ovocytes. For determination of spawning behaviour 368 females were used. It was observed that the spawning is discontinuous, with annual periodicity and higher frequency  in December-January. The fecundity is a linear positive function of the ovary weight.

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Published

1992-12-02

Issue

Vol. 29 No. 2 (1992)

Section

ANIMAL PATHOLOGY

License

The journal content is authorized under the Creative Commons  BY-NC-SA  license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) 

How to Cite

1.
Rodrigues AM, Campos EC, Santos RA dos, Mandelli Junior J, Camara JJC da. Spawning behaviour and fecundity of ’tambiú’ Astyanax bimaculatus Linnaeus, 1758 (Pisces, Characiformes, Characidae), in ibitinga reservoir, São Paulo State, Brazil. Braz. J. Vet. Res. Anim. Sci. [Internet]. 1992 Dec. 2 [cited 2024 Apr. 25];29(2):309-15. Available from: https://www.revistas.usp.br/bjvras/article/view/51998