Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)

Detalhes bibliográficos
Autor(a) principal: Ferreira, Arthur Augusto
Data de Publicação: 2008
Outros Autores: Nuñer, Alex Pires de Oliveira, Esquivel, Juan Ramon
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/2705
Resumo: The influence of pH on silver catfish (Rhamdia quelen, Quoy and Gaimard, 1824) eggs and larvae was evaluated in experiments with 6 treatments (pH 4, 5, 6, 7, 8 and 9) in three spawnings. All eggs in pH 4 died. Same results occurred when temperature fell to 17ºC. There was no difference in fertilization rates of spawnings at the same water temperature. In spawning with higher temperature the lowest fertilization rate was registered at pH 6 and 7. Eclosion time was directly proportional to temperature, whilst after eclosion all eggs at pH 5 died. Mouth-opening time was influenced by temperature. Survival rate was influenced by pH in different water temperature conditions
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spelling Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)Influência do pH sobre ovos e larvas de jundiá, Rhamdia quelen (Osteichthyes, Siluriformes)Rhamdia quelenpHovos e larvas2.00.00.00-6 Ciências BiológicasThe influence of pH on silver catfish (Rhamdia quelen, Quoy and Gaimard, 1824) eggs and larvae was evaluated in experiments with 6 treatments (pH 4, 5, 6, 7, 8 and 9) in three spawnings. All eggs in pH 4 died. Same results occurred when temperature fell to 17ºC. There was no difference in fertilization rates of spawnings at the same water temperature. In spawning with higher temperature the lowest fertilization rate was registered at pH 6 and 7. Eclosion time was directly proportional to temperature, whilst after eclosion all eggs at pH 5 died. Mouth-opening time was influenced by temperature. Survival rate was influenced by pH in different water temperature conditionsA influência do pH sobre o desenvolvimento de ovos e larvas de jundiá (Rhamdia quelen, Quoy e Gaimard, 1824) foi avaliada utilizando-se experimentos inteiramente casualizados com 6 tratamentos (pH 4, 5, 6, 7, 8 e 9), em três desovas. Todos os ovos incubados em pH 4 morreram, o mesmo acontecendo quando a temperatura atingiu 17ºC. Nas desovas com temperatura semelhante os diferentes tratamentos não apresentaram diferença com relação à taxa de fertilização, enquanto na desova que apresentou maior temperatura, os pH 6 e 7 apresentaram a menor taxa. O tempo de eclosão das larvas foi diretamente proporcional à temperatura, e, após a eclosão, todas as larvas submetidas ao pH 5 morreram. O tempo para abertura da boca foi influenciado pela temperatura, e não pelos tratamentos. A taxa de sobrevivência sofreu influência do pH nas diferentes condições de temperatura da águaUniversidade Estadual De Maringá2008-05-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/270510.4025/actascibiolsci.v23i0.2705Acta Scientiarum. Biological Sciences; Vol 23 (2001); 477-481Acta Scientiarum. Biological Sciences; v. 23 (2001); 477-4811807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2705/2022Ferreira, Arthur AugustoNuñer, Alex Pires de OliveiraEsquivel, Juan Ramoninfo:eu-repo/semantics/openAccess2022-11-23T17:33:27Zoai:periodicos.uem.br/ojs:article/2705Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:27Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
Influência do pH sobre ovos e larvas de jundiá, Rhamdia quelen (Osteichthyes, Siluriformes)
title Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
spellingShingle Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
Ferreira, Arthur Augusto
Rhamdia quelen
pH
ovos e larvas
2.00.00.00-6 Ciências Biológicas
title_short Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
title_full Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
title_fullStr Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
title_full_unstemmed Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
title_sort Influence of pH on eggs and larvae of silver catfish, Rhamdia quelen (Osteichthyes, Siluriformes)
author Ferreira, Arthur Augusto
author_facet Ferreira, Arthur Augusto
Nuñer, Alex Pires de Oliveira
Esquivel, Juan Ramon
author_role author
author2 Nuñer, Alex Pires de Oliveira
Esquivel, Juan Ramon
author2_role author
author
dc.contributor.author.fl_str_mv Ferreira, Arthur Augusto
Nuñer, Alex Pires de Oliveira
Esquivel, Juan Ramon
dc.subject.por.fl_str_mv Rhamdia quelen
pH
ovos e larvas
2.00.00.00-6 Ciências Biológicas
topic Rhamdia quelen
pH
ovos e larvas
2.00.00.00-6 Ciências Biológicas
description The influence of pH on silver catfish (Rhamdia quelen, Quoy and Gaimard, 1824) eggs and larvae was evaluated in experiments with 6 treatments (pH 4, 5, 6, 7, 8 and 9) in three spawnings. All eggs in pH 4 died. Same results occurred when temperature fell to 17ºC. There was no difference in fertilization rates of spawnings at the same water temperature. In spawning with higher temperature the lowest fertilization rate was registered at pH 6 and 7. Eclosion time was directly proportional to temperature, whilst after eclosion all eggs at pH 5 died. Mouth-opening time was influenced by temperature. Survival rate was influenced by pH in different water temperature conditions
publishDate 2008
dc.date.none.fl_str_mv 2008-05-09
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/2705
10.4025/actascibiolsci.v23i0.2705
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2705
identifier_str_mv 10.4025/actascibiolsci.v23i0.2705
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/2705/2022
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 23 (2001); 477-481
Acta Scientiarum. Biological Sciences; v. 23 (2001); 477-481
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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