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

Detalhes bibliográficos
Autor(a) principal: Araújo, Jaqueline de
Data de Publicação: 2008
Outros Autores: Cerqueira, Vinicius Ronzani
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum Biological Sciences
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1363
Resumo: 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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spelling The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363Influência da salinidade na incubação de ovos do robalo-peva (Centropomus parallelus Poey, 1860) - DOI: 10.4025/actascibiolsci.v27i1.1363salinidadeovosincubaçãoCentropomus parallelusrobalo-peva2.01.00.00-0 Biologia GeralThe 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 eggsO robalo-peva, uma espécie estuário-dependente, tem sido estudado para sua utilização na piscicultura. Desse modo, é importante conhecer a ação da salinidade sobre as diversas etapas de seu desenvolvimento. Este estudo avaliou o efeito das salinidades 15, 20, 25, 30 e 35 sobre a eclosão e a qualidade de larvas. As unidades experimentais eram béqueres com volume útil de 800 mL. A temperatura era de 26ºC. Foram analisadas as taxas de eclosão e de larvas normais através do método não-paramétrico do χ2 (α=0,05). Houve uma dependência entre a salinidade as variáveis avaliadas. Os melhores resultados em taxa de eclosão foram nas salinidades de 35 e 30, provavelmente pelo efeito positivo sobre a flutuação dos ovos. Foram observadas larvas com deformidades (18% a 43%) em todas as salinidades. Levando em consideração ambas as variáveis, taxa de eclosão e taxa de larvas normais, pode-se recomendar o intervalo de 30 a 35 como o mais adequado para realizar a incubação de ovos dessa espécieUniversidade Estadual De Maringá2008-03-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/136310.4025/actascibiolsci.v27i1.1363Acta Scientiarum. Biological Sciences; Vol 27 No 1 (2005); 85-89Acta Scientiarum. Biological Sciences; v. 27 n. 1 (2005); 85-891807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1363/780Araújo, Jaqueline deCerqueira, Vinicius Ronzaniinfo:eu-repo/semantics/openAccess2022-11-23T17:33:09Zoai:periodicos.uem.br/ojs:article/1363Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:09Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
Influência da salinidade na incubação de ovos do robalo-peva (Centropomus parallelus Poey, 1860) - DOI: 10.4025/actascibiolsci.v27i1.1363
title The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
spellingShingle The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
Araújo, Jaqueline de
salinidade
ovos
incubação
Centropomus parallelus
robalo-peva
2.01.00.00-0 Biologia Geral
title_short The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
title_full The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
title_fullStr The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
title_full_unstemmed The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
title_sort The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
author Araújo, Jaqueline de
author_facet Araújo, Jaqueline de
Cerqueira, Vinicius Ronzani
author_role author
author2 Cerqueira, Vinicius Ronzani
author2_role author
dc.contributor.author.fl_str_mv Araújo, Jaqueline de
Cerqueira, Vinicius Ronzani
dc.subject.por.fl_str_mv salinidade
ovos
incubação
Centropomus parallelus
robalo-peva
2.01.00.00-0 Biologia Geral
topic salinidade
ovos
incubação
Centropomus parallelus
robalo-peva
2.01.00.00-0 Biologia Geral
description 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
publishDate 2008
dc.date.none.fl_str_mv 2008-03-26
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1363
10.4025/actascibiolsci.v27i1.1363
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1363
identifier_str_mv 10.4025/actascibiolsci.v27i1.1363
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1363/780
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Biological Sciences; Vol 27 No 1 (2005); 85-89
Acta Scientiarum. Biological Sciences; v. 27 n. 1 (2005); 85-89
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum Biological Sciences
collection Acta Scientiarum Biological Sciences
repository.name.fl_str_mv Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actabiol@uem.br
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