Influência da salinidade na incubação de ovos do robalo-peva (Centropomus parallelus Poey, 1860) - DOI: 10.4025/actascibiolsci.v27i1.1363

Jaqueline de Araújo; Vinicius Ronzani Cerqueira

doi:10.4025/actascibiolsci.v27i1.1363

The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363

Authors

Jaqueline de Araújo UFSC Author
Vinicius Ronzani Cerqueira UFSC Author

DOI:

https://doi.org/10.4025/actascibiolsci.v27i1.1363

Keywords:

salinidade, ovos, incubação, Centropomus parallelus, robalo-peva

Abstract

The robalo-peva is an estuarine-dependent species that has great potential for aquaculture. Thus, it is very important to determine the effect of salinity on its early life history. The present study evaluated the influence of different salinity levels 15, 20, 25, 30 and 35 on egg hatching and quality of larvae. Experimental units were beakers with 800 mL of water at 26ºC of temperature. Parameters used in statistical analysis were rates of hatching and of deformed larvae by means of the χ² non-parametric test (α=0.05). There was a significant dependence between salinity and the evaluated parameters. The best results in hatching rate were obtained at 35 and 30, probably due to the positive effect on eggs flotation. Deformed larvae were observed (18 to 43%) in all salinity levels. Taking into account both parameters, hatching and deformed larvae, the range 30 to 35 could be recommended as the most appropriate for incubation of robalo-peva eggs

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Author Biography

Vinicius Ronzani Cerqueira, UFSC

possui graduação em Oceanologia pela Fundação Universidade Federal do Rio Grande (1981), mestrado (Diplome d'Etudes Aprofondies) em Océanologie - Université D' Aix Marseille II (1983) e doutorado em Océanographie - Université D' Aix Marseille II (1986). Atualmente é professor titular de Piscicultura Marinha da Universidade Federal de Santa Catarina. Tem experiência na área de Aquicultura, com ênfase em Piscicultura, atuando principalmente nos seguintes temas: reprodução e engorda de peixes marinhos, notadamente robalos brasileiros (Centropomus parallelus e C. undecimalis), robalo europeu (Dicentrarchus labrax) e linguado (Paralichthys orbignyanus), e alguns trabalhos de adaptação ao cativeiro com caranhas (Lutjanus griseus e L. analis) e garoupa (Epinephelus marginatus) Currículo Lattes

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Published

2008-03-26

Issue

Vol. 27 No. 1 (2005)

Section

Vertebrates

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How to Cite

The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363. (2008). Acta Scientiarum. Biological Sciences, 27(1), 85-89. https://doi.org/10.4025/actascibiolsci.v27i1.1363