Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná

Detalhes bibliográficos
Autor(a) principal: Araujo, Renato Braz de [UNESP]
Data de Publicação: 2002
Outros Autores: Garutti, Valdener [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0073-47212002000400011
http://hdl.handle.net/11449/22369
Resumo: The reproductive biology of Aspidoras fuscoguttatus Nijssen & Isbrücker, 1976 from a stream in São José do Rio Preto, northwestern São Paulo State, Brazil, was monthly investigated in the period of August 1999 to July 2000. Measurements of total length, body weight, gonadal weight and macroscopic assessment of gonadal maturation were performed. Environmental parameters were considered in order to verify associations with the reproductive period. Populational structure showed total length amplitude between 14.2 and 50.8 mm. Pronounced sexual dimorphism was verified. The largest mean values of gonadosomatic relation for females coincided with the rainy season (November to March). Mean length at first sexual maturity was different for males (30.5 mm) and females (37.1 mm). Fecundity varied between 51 and 166 oocytes. Gonadal maturation curve, frequency of maturation stages and size frequency distributions of oocytes in mature ovaries revealed a long reproductive period, suggesting fractional spawning.
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spelling Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio ParanáReproductive biology of Aspidoras fuscoguttatus (Siluriformes, Callichthyidae) in a headstream from upper Paraná River basinBiologyAspidorasCallichthyidaeBrazilThe reproductive biology of Aspidoras fuscoguttatus Nijssen & Isbrücker, 1976 from a stream in São José do Rio Preto, northwestern São Paulo State, Brazil, was monthly investigated in the period of August 1999 to July 2000. Measurements of total length, body weight, gonadal weight and macroscopic assessment of gonadal maturation were performed. Environmental parameters were considered in order to verify associations with the reproductive period. Populational structure showed total length amplitude between 14.2 and 50.8 mm. Pronounced sexual dimorphism was verified. The largest mean values of gonadosomatic relation for females coincided with the rainy season (November to March). Mean length at first sexual maturity was different for males (30.5 mm) and females (37.1 mm). Fecundity varied between 51 and 166 oocytes. Gonadal maturation curve, frequency of maturation stages and size frequency distributions of oocytes in mature ovaries revealed a long reproductive period, suggesting fractional spawning.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Estadual Paulista Centro de Aqüicultura Programa de Pós-GraduaçãoUNESP Instituto de Biociências, Letras e Ciências Exatas e Centro de Aqüicultura Instituto de BiociênciasUniversidade Estadual Paulista Centro de Aqüicultura Programa de Pós-GraduaçãoUNESP Instituto de Biociências, Letras e Ciências Exatas e Centro de Aqüicultura Instituto de BiociênciasFundação Zoobotânica do Rio Grande do SulUniversidade Estadual Paulista (Unesp)Araujo, Renato Braz de [UNESP]Garutti, Valdener [UNESP]2014-05-20T14:03:36Z2014-05-20T14:03:36Z2002-12-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article89-98application/pdfhttp://dx.doi.org/10.1590/S0073-47212002000400011Iheringia. Série Zoologia. Fundação Zoobotânica do Rio Grande do Sul, v. 92, n. 4, p. 89-98, 2002.0073-4721http://hdl.handle.net/11449/2236910.1590/S0073-47212002000400011S0073-472120020004000112-s2.0-52649100402S0073-47212002000400011.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporIheringia: Série Zoologia0.2940,260info:eu-repo/semantics/openAccess2024-04-09T15:37:02Zoai:repositorio.unesp.br:11449/22369Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:47:29.524787Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
Reproductive biology of Aspidoras fuscoguttatus (Siluriformes, Callichthyidae) in a headstream from upper Paraná River basin
title Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
spellingShingle Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
Araujo, Renato Braz de [UNESP]
Biology
Aspidoras
Callichthyidae
Brazil
title_short Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
title_full Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
title_fullStr Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
title_full_unstemmed Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
title_sort Biologia reprodutiva de Apidoras fuscoguttatus (Siluriformes, Callichthyidae) em riacho de cabeceira da bacia do alto Rio Paraná
author Araujo, Renato Braz de [UNESP]
author_facet Araujo, Renato Braz de [UNESP]
Garutti, Valdener [UNESP]
author_role author
author2 Garutti, Valdener [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Araujo, Renato Braz de [UNESP]
Garutti, Valdener [UNESP]
dc.subject.por.fl_str_mv Biology
Aspidoras
Callichthyidae
Brazil
topic Biology
Aspidoras
Callichthyidae
Brazil
description The reproductive biology of Aspidoras fuscoguttatus Nijssen & Isbrücker, 1976 from a stream in São José do Rio Preto, northwestern São Paulo State, Brazil, was monthly investigated in the period of August 1999 to July 2000. Measurements of total length, body weight, gonadal weight and macroscopic assessment of gonadal maturation were performed. Environmental parameters were considered in order to verify associations with the reproductive period. Populational structure showed total length amplitude between 14.2 and 50.8 mm. Pronounced sexual dimorphism was verified. The largest mean values of gonadosomatic relation for females coincided with the rainy season (November to March). Mean length at first sexual maturity was different for males (30.5 mm) and females (37.1 mm). Fecundity varied between 51 and 166 oocytes. Gonadal maturation curve, frequency of maturation stages and size frequency distributions of oocytes in mature ovaries revealed a long reproductive period, suggesting fractional spawning.
publishDate 2002
dc.date.none.fl_str_mv 2002-12-30
2014-05-20T14:03:36Z
2014-05-20T14:03:36Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0073-47212002000400011
Iheringia. Série Zoologia. Fundação Zoobotânica do Rio Grande do Sul, v. 92, n. 4, p. 89-98, 2002.
0073-4721
http://hdl.handle.net/11449/22369
10.1590/S0073-47212002000400011
S0073-47212002000400011
2-s2.0-52649100402
S0073-47212002000400011.pdf
url http://dx.doi.org/10.1590/S0073-47212002000400011
http://hdl.handle.net/11449/22369
identifier_str_mv Iheringia. Série Zoologia. Fundação Zoobotânica do Rio Grande do Sul, v. 92, n. 4, p. 89-98, 2002.
0073-4721
10.1590/S0073-47212002000400011
S0073-47212002000400011
2-s2.0-52649100402
S0073-47212002000400011.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Iheringia: Série Zoologia
0.294
0,260
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 89-98
application/pdf
dc.publisher.none.fl_str_mv Fundação Zoobotânica do Rio Grande do Sul
publisher.none.fl_str_mv Fundação Zoobotânica do Rio Grande do Sul
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129248425148416

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