Relação peso-comprimento e fator de condição para Cichla cf. ocellaris e Cichla monoculus (Perciformes, Cichlidae) no reservatório de Volta Grande, rio Grande - MG/SP - DOI: 10.4025/actascibiolsci.v25i1.2119

Leandro Muller Gomiero; Francisco Manoel de Souza Braga

doi:10.4025/actascibiolsci.v25i1.2119

**Length-weight relationship and condition factor for Cichla cf. ocellaris and Cichla monoculus (Perciformes, Cichlidae) in Volta Grande Reservoir, Rio Grande -MG/SP**- DOI: 10.4025/actascibiolsci.v25i1.2119

Authors

Leandro Muller Gomiero Unesp Rio Claro Author
Francisco Manoel de Souza Braga UNESP Author

DOI:

https://doi.org/10.4025/actascibiolsci.v25i1.2119

Keywords:

relação peso e comprimento, fator de condição, Cichla, reservatório, rio Grande

Abstract

The aim of this paper was to analyze the length-weight relationship and the condition factor of two species of cichlids (Cichla cf. ocellaris and Cichla monoculus) (Perciformes, Cichlidae) that were inducted in Volta Grande Reservoir, Rio Grande. There was no difference in the length-weight relationship between the sexes for Cichla cf. ocellaris and Cichla monoculus. The allometric condition factor showed a fall in the spring and another smaller one in the winter. It happens when these fishes change their feeding activity. In the spring all the reproductive behavior are developed and, in the winter, there is a shortage of prey. The variation of the relative condition factor followed the variation of the allometric condition factor due to the low contribution of the gonads weight and the small amount of accumulated fat in the total weight. The length distribution, length-weight relationship and condition factor of these fishes vary in accordance with the time of introduction into the reservoir, the characteristics of the ecosystem as well as the interactions among the species at these sites

Downloads

Download data is not yet available.

Author Biography

Leandro Muller Gomiero, Unesp Rio Claro

Possui graduação em Bacharelado em Ciências Biológicas pela Universidade Estadual Paulista Júlio de Mesquita Filho (1996), mestrado em Zoologia pela Universidade Estadual Paulista Júlio de Mesquita Filho (1999), doutorado em Zoologia pela Universidade Estadual Paulista Júlio de Mesquita Filho (2003) e Pós-Doutorado pela Universidade Estadual Paulista Júlio de Mesquita Filho (2006). Tem experiência na área de Zoologia, com ênfase em Conservação das Espécies Animais, atuando principalmente nos seguintes temas: peixes, alimentação, reprodução, fecundidade, relação gonadossomática, introdução de espécies, ictiofauna de reservatórios, frugivoria e dispersão de sementes por peixes, diversidade, relação peso-comprimento e fator de condição Currículo Lattes

Downloads

PDF (Portuguese)

Published

2008-04-18

Issue

Vol. 25 No. 1 (2003)

Section

Biology Sciences

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

Length-weight relationship and condition factor for Cichla cf. ocellaris and Cichla monoculus (Perciformes, Cichlidae) in Volta Grande Reservoir, Rio Grande -MG/SP- DOI: 10.4025/actascibiolsci.v25i1.2119. (2008). Acta Scientiarum. Biological Sciences, 25(1), 79-86. https://doi.org/10.4025/actascibiolsci.v25i1.2119