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

dc.contributor.authorCasatti, L.
dc.contributor.authorCarvalho, F. R.
dc.contributor.authorVeronezi, J. L.
dc.contributor.authorLacerda, D. R.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:23:08Z
dc.date.available2014-05-20T15:23:08Z
dc.date.issued2006-03-01
dc.description.abstractWe 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.en
dc.description.affiliationUniv Estadual Paulista, Lab Ictiol, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Lab Ictiol, Dept Bot & Zool, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.format.extent59-64
dc.identifierhttp://www.pfeil-verlag.de/04biol/pdf/ief17_1_05.pdf
dc.identifier.citationIchthyological Exploration of Freshwaters. Munich: Verlag Dr. Friedrich Pfeil, v. 17, n. 1, p. 59-64, 2006.
dc.identifier.issn0936-9902
dc.identifier.lattes8041011456158217
dc.identifier.urihttp://hdl.handle.net/11449/33979
dc.identifier.wosWOS:000235764700005
dc.language.isoeng
dc.publisherVerlag Dr. Friedrich Pfeil
dc.relation.ispartofIchthyological Exploration of Freshwaters
dc.relation.ispartofjcr0.783
dc.relation.ispartofsjr0,714
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleReproductive biology of the neotropical superfetaceous Pamphorichthys hollandi (Cyprinodontiformes : Poeciliidae)en
dc.typeArtigo
dcterms.licensehttp://www.pfeil-verlag.de/04biol/e9902d.php
dcterms.rightsHolderVerlag Dr. Friedrich Pfeil
unesp.author.lattes8041011456158217
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Pretopt
unesp.departmentZoologia e Botânica - IBILCEpt

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