The effect of salinity on robalo-peva egg incubation - DOI: 10.4025/actascibiolsci.v27i1.1363
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
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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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 |
_version_ |
1799317392094920704 |