Desenvolvimento embrionário e larval da piracanjuba, Brycon orbignyanus, Valenciennes, 1849 (Pisces, Characidae) - DOI: 10.4025/actascibiolsci.v26i1.1660

David Reynalte-Tataje; Evoy Zaniboni-Filho; Juan Ramón Esquivel

doi:10.4025/actascibiolsci.v26i1.1660

**Embryonic and larvae development of piracanjuba, Brycon orbignyanus Valenciennes, 1849 (Pisces, Characidae)** - DOI: 10.4025/actascibiolsci.v26i1.1660

Authors

David Reynalte-Tataje UFSC Author
Evoy Zaniboni-Filho UFSC Author
Juan Ramón Esquivel Piscicultura Panamá Author

DOI:

https://doi.org/10.4025/actascibiolsci.v26i1.1660

Keywords:

Brycon orbignyanus, desenvolvimento embrionário, ovos, larvas

Abstract

The knowledge of embryonic and larvae development of fishes is a fundamental key which enables a closer approach to their biology and taxonomy. The present study aims to characterize piracanjuba (Brycon orbignyanus) embryonic and larvae development. During the whole embryogenesis, 15 to 20 embryos were sampled and analyzed. Eggs of B. orbignyanus are semidense, transparent, spherical, and bear a large perivitelline space. Hatching takes place 18 hours and 30 minutes after fertilization at 25 ± 0.8ºC. Total length and weight of just hatched larvae were 4.46 ± 0.39mm and 2.56 ± 0.73mg, respectively. Larvae presented entirely developed and pigmented eyes, as well as a vertical mouth opening of 15.2 ± 1.9% of body length, 36 hours after hatching, period from which intense cannibalism was observed

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Author Biography

David Reynalte-Tataje, UFSC

possui graduação em Ciencias Biológicas - Universidad Ricardo Palma (1996), mestrado em Aquicultura pela Universidade Federal de Santa Catarina (2000) e doutorado em Ecologia de Ambientes Aquáticos Continentais pela Universidade Estadual de Maringá (2007). Atualmente é biologo da Fundação de Amparo a Pesquisa e Extensão Universitária. Tem experiência na área de Ecologia, com ênfase em Ictioplâncton, atuando principalmente nos seguintes temas: ictiofauna, monitoramento, uhe itá, alto rio uruguai e ahe quebra-queixo Currículo Lattes

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Published

2008-04-01

Issue

Vol. 26 No. 1 (2004)

Section

Biology Sciences

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How to Cite

Embryonic and larvae development of piracanjuba, Brycon orbignyanus Valenciennes, 1849 (Pisces, Characidae) - DOI: 10.4025/actascibiolsci.v26i1.1660. (2008). Acta Scientiarum. Biological Sciences, 26(1), 67-71. https://doi.org/10.4025/actascibiolsci.v26i1.1660