Avaliação de canibalismo e comportamento territorial de alevinos de trairão (Hoplias lacerdae)

Ronald Kennedy Luz; Ana Lúcia Salaro; Evoy Zaniboni Filho

doi:10.4025/actascibiolsci.v22i0.2929

Cannibalism and territorial behavior of trairão fingerlings (Hoplias lacerdae) evaluation

Authors

Ronald Kennedy Luz UNESP Author
Ana Lúcia Salaro UFV Author
Evoy Zaniboni Filho UFSC Author

DOI:

https://doi.org/10.4025/actascibiolsci.v22i0.2929

Keywords:

canibalismo, comportamento territorial, Hoplias lacerdae, trairão

Abstract

Aiming to evaluate cannibalism and territorial behavior trairao fingerlings were measured and divided into five length classes: I (11.16+0.68cm), 11 (8.66+0.60cm), III (6.33+0.60cm), IV (4.60+0.12cm), V (2.98+0.16cm). After being classified, the fingerlings were submitted to ten treatments, placing six of them (three from each class) into each aquarium. At the end of the experiment, the occurrence of cannibalism in the treatments containing fingerlings with greater difference of length was observed but this canibalism diminished as the sizes became similar. On cannibalism was observed among individuals of the same size. As for territorial behavior, it was observed that bigger fingerlings of the same size remained together in the same area in most observations and smaller fingerlings were seen scattered at the bottom of the aquariums

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Author Biography

Ronald Kennedy Luz, UNESP

possui graduação em Agronomia pela Universidade Federal de Viçosa (1998), especialização em Piscicultura pela Universidade Federal de Lavras (2000), mestrado em AqÃ¼icultura pela Universidade Federal de Santa Catarina (2000), doutorado em AqÃ¼icultura pela Universidade Estadual Paulista Júlio de Mesquita Filho -CAUNESP (2004) e doutorado sanduíche em Biologia e Fisiologia pela Universidad de Múrcia-Espanha (2002-2003), pós-doutorado em Fisiologia Animal pela Universidad Complutense de Madrid-Espanha (2004-2005) e pós-doutorado na PUC Minas no departamento de Zoologia de Vertebrados (2006- 2007). Tem experiência na área de Recursos Pesqueiros com ênfase em Piscicultura, Maricultura, atuando principalmente nos seguintes temas: trairão, larvicultura de peixes neotropicais, peixes carnívoros, nutrição, fisiologia, comportamento, ecologia, reprodução e sistemas de produção Currículo Lattes

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PDF (Portuguese)

Published

2008-05-09

Issue

Vol. 22 (2000)

Section

Biology Sciences

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How to Cite

Cannibalism and territorial behavior of trairão fingerlings (Hoplias lacerdae) evaluation. (2008). Acta Scientiarum. Biological Sciences, 22, 465-469. https://doi.org/10.4025/actascibiolsci.v22i0.2929