Aspectos da reprodução no gênero Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae), na microbacia do Ribeirão Grande, serra da Mantiqueira, sudeste do Brasil - DOI: 10.4025/actascibiolsci.v28i4.170

Francisco Manoel de Souza Braga

doi:10.4025/actascibiolsci.v28i4.170

**Reproduction aspects of the genus Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae) in the Ribeirão Grande system, serra da Mantiqueira, southeastern Brazil**- DOI: 10.4025/actascibiolsci.170

Authors

Francisco Manoel de Souza Braga Unesp Rio Claro Author

DOI:

https://doi.org/10.4025/actascibiolsci.v28i4.170

Keywords:

reprodução, relação gonadossomática, Characidium lauroi, Characidium alipioi

Abstract

Aspects of the reproductive biology of Characidium lauroi and C. alipioi were described. Maturation of the gonads was divided into four stages, and the distribution of the stages in an annual cycle was reported. The Characidium lauroi has a higher spawning period in the spring, and the C. alipioi, in the summer. The size at sexual maturity of the Characidium lauroi was about 4.2 cm total length for males and 5.1 cm for females; as for the C. alipioi, males were about 6.2 cm total length and females were about 5.8 cm. The gonadosomatic index values indicated the stage of maturity and were determined for each species and sex. The high values observed in October for Characidium lauroi males and females mark the maturation peaks in both sexes, and the peaks coincided with the spawning period. As for C. alipioi, the peaks were in February and also coincided with the spawning period.

Downloads

Download data is not yet available.

Author Biography

Francisco Manoel de Souza Braga, Unesp Rio Claro

Possui graduação em História Natural pela Faculdade de Filosofia Ciências e Letras de Rio Claro (Instituto Isolado) (1973), mestrado em Oceanografia (Oceanografia Biológica) pela Universidade de São Paulo (1978) e doutorado em Oceanografia (Oceanografia Biológica) pela Universidade de São Paulo (1982). Em 1995 prestou concurso para professor livre-docente, tornando-se professor adjunto e em 2005 tornou-se professor titular por concurso pela Universidade Estadual Paulista Júlio de Mesquita Filho. Tem experiência em biologia pesqueira de peixes marinhos e continentais e atualmente tem trabalhado em biologia populacional e ecologia de peixes de riachos. Currículo Lattes

Downloads

PDF (Portuguese)

Published

2006-11-16

Issue

Vol. 28 No. 4 (2006)

Section

Ecology and Limnology

License

DECLARATION OF ORIGINALITY AND COPYRIGHTS

I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

Read this link for further information on how to use CC BY 4.0 properly.

How to Cite

Reproduction aspects of the genus Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae) in the Ribeirão Grande system, serra da Mantiqueira, southeastern Brazil- DOI: 10.4025/actascibiolsci.170. (2006). Acta Scientiarum. Biological Sciences, 28(4), 365-371. https://doi.org/10.4025/actascibiolsci.v28i4.170