Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)

Detalhes bibliográficos
Autor(a) principal: Casatti, L.
Data de Publicação: 2006
Outros Autores: Carvalho, F. R., Veronezi, J. L., Lacerda, D. R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.pfeil-verlag.de/04biol/pdf/ief17_1_05.pdf
http://hdl.handle.net/11449/33979
Resumo: We investigated sex ratio, reproductive period, fecundity, and sexual dimorphism of Pamphorichthys hollandi in southeastern Brazil. Reproductive status was identified according to a female's gonads/embryos development scale. of the 613 collected specimens, 373 (60 %) were females and 240 (40 %) males giving a sex ratio of I male: 1.6 female. Sexual dimorphism was evident in respect to body size, body coloration, and anal and pelvic-fin morphologies. The highest proportion of reproductive females was registered in January and February, which represent wet and hot periods. The simultaneous presence of more than one litter at different stages of development within a single female characterized this species as superfetaceous.
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spelling Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)We investigated sex ratio, reproductive period, fecundity, and sexual dimorphism of Pamphorichthys hollandi in southeastern Brazil. Reproductive status was identified according to a female's gonads/embryos development scale. of the 613 collected specimens, 373 (60 %) were females and 240 (40 %) males giving a sex ratio of I male: 1.6 female. Sexual dimorphism was evident in respect to body size, body coloration, and anal and pelvic-fin morphologies. The highest proportion of reproductive females was registered in January and February, which represent wet and hot periods. The simultaneous presence of more than one litter at different stages of development within a single female characterized this species as superfetaceous.Univ Estadual Paulista, Lab Ictiol, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, BrazilUniv Estadual Paulista, Lab Ictiol, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, BrazilVerlag Dr. Friedrich PfeilUniversidade Estadual Paulista (Unesp)Casatti, L.Carvalho, F. R.Veronezi, J. L.Lacerda, D. R.2014-05-20T15:23:08Z2014-05-20T15:23:08Z2006-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article59-64http://www.pfeil-verlag.de/04biol/pdf/ief17_1_05.pdfIchthyological Exploration of Freshwaters. Munich: Verlag Dr. Friedrich Pfeil, v. 17, n. 1, p. 59-64, 2006.0936-9902http://hdl.handle.net/11449/33979WOS:0002357647000058041011456158217Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIchthyological Exploration of Freshwaters0.7830,714info:eu-repo/semantics/openAccess2021-10-22T19:57:56Zoai:repositorio.unesp.br:11449/33979Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:07:05.291076Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
title Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
spellingShingle Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
Casatti, L.
title_short Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
title_full Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
title_fullStr Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
title_full_unstemmed Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
title_sort Reproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)
author Casatti, L.
author_facet Casatti, L.
Carvalho, F. R.
Veronezi, J. L.
Lacerda, D. R.
author_role author
author2 Carvalho, F. R.
Veronezi, J. L.
Lacerda, D. R.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Casatti, L.
Carvalho, F. R.
Veronezi, J. L.
Lacerda, D. R.
description We investigated sex ratio, reproductive period, fecundity, and sexual dimorphism of Pamphorichthys hollandi in southeastern Brazil. Reproductive status was identified according to a female's gonads/embryos development scale. of the 613 collected specimens, 373 (60 %) were females and 240 (40 %) males giving a sex ratio of I male: 1.6 female. Sexual dimorphism was evident in respect to body size, body coloration, and anal and pelvic-fin morphologies. The highest proportion of reproductive females was registered in January and February, which represent wet and hot periods. The simultaneous presence of more than one litter at different stages of development within a single female characterized this species as superfetaceous.
publishDate 2006
dc.date.none.fl_str_mv 2006-03-01
2014-05-20T15:23:08Z
2014-05-20T15:23:08Z
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://www.pfeil-verlag.de/04biol/pdf/ief17_1_05.pdf
Ichthyological Exploration of Freshwaters. Munich: Verlag Dr. Friedrich Pfeil, v. 17, n. 1, p. 59-64, 2006.
0936-9902
http://hdl.handle.net/11449/33979
WOS:000235764700005
8041011456158217
url http://www.pfeil-verlag.de/04biol/pdf/ief17_1_05.pdf
http://hdl.handle.net/11449/33979
identifier_str_mv Ichthyological Exploration of Freshwaters. Munich: Verlag Dr. Friedrich Pfeil, v. 17, n. 1, p. 59-64, 2006.
0936-9902
WOS:000235764700005
8041011456158217
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ichthyological Exploration of Freshwaters
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 59-64
dc.publisher.none.fl_str_mv Verlag Dr. Friedrich Pfeil
publisher.none.fl_str_mv Verlag Dr. Friedrich Pfeil
dc.source.none.fl_str_mv Web of Science
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
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