Mobilization of energetic substrates in the endangered catfish steindachneridion parahybae (Siluriformes: Pimelodidae): Changes in annual reproductive cycle in captivity

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dc.contributor.authorTolussi, Carlos E.
dc.contributor.authorGomes, Aline D.
dc.contributor.authorRibeiro, Cristiéle da S. [UNESP]
dc.contributor.authorCaneppele, Danilo
dc.contributor.authorMoreira, Renata G.
dc.contributor.authorHonji, Renato M. [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCompanhia Energética de São Paulo (CESP)
dc.date.accessioned2018-12-11T17:21:21Z
dc.date.available2018-12-11T17:21:21Z
dc.date.issued2018-01-01
dc.description.abstractThis study aimed at analyzing the energetic substrate (ES) in the main storage tissues of Steindachneridion parahybae, throughout the reproductive cycle in captivity. Differently from wild, in captivity, feeding is not interrupted during the reproductive period, the females do not spawn spontaneously, and they are sedentary. Adult females were sampled monthly and based on their histology and gonadosomatic index (GSI), ovaries were classified into: previtellogenic (PRV), vitellogenic (VTG), and regression (REG) stages. Ovaries at the VTG stage showed higher protein and lipids levels than at the PRV stage with a positive correlation between these substrates and the GSI. Muscle was the main source of proteins transferred to the ovaries, according to the negative correlation between these organs. Lipids remained unchanged in the liver, which is an important supplier in vitellogenesis, a pattern that probably occurs due to the continuous feeding. Muscular glycogen levels were higher at the VTG and REG than at the PRV stages. Plasma triglycerides were also higher during REG, while glucose levels were more elevated during the VTG stage. These results suggest that with constant food supply, the pattern of deposition of ES in S. parahybae is different from that described for other wild potamodromous species.en
dc.description.affiliationDepartamento de Fisiologia Instituto de Biociências Universidade de São Paulo, Rua do Matão, Trav. 14, nº321
dc.description.affiliationDepartamento de Biologia e Zootecnia Universidade Estadual Paulista (UNESP) Faculdade de Engenharia Câmpus de Ilha Solteira, Rua Monção, 226
dc.description.affiliationUnidade de Hidrobiologia e Aquicultura Companhia Energética de São Paulo (CESP), Rodovia dos Tamoios, km 38
dc.description.affiliationCentro de Aquicultura Universidade Estadual Paulista “Júlio de Mesquita Filho” (CAUNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n
dc.description.affiliationUnespDepartamento de Biologia e Zootecnia Universidade Estadual Paulista (UNESP) Faculdade de Engenharia Câmpus de Ilha Solteira, Rua Monção, 226
dc.description.affiliationUnespCentro de Aquicultura Universidade Estadual Paulista “Júlio de Mesquita Filho” (CAUNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n
dc.description.sponsorshipCompanhia Energética de São Paulo
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2007/55494-7
dc.description.sponsorshipIdFAPESP: 2008/57687-0
dc.identifierhttp://dx.doi.org/10.1590/1982-0224-20170120
dc.identifier.citationNeotropical Ichthyology, v. 16, n. 2, 2018.
dc.identifier.doi10.1590/1982-0224-20170120
dc.identifier.fileS1679-62252018000200208.pdf
dc.identifier.issn1982-0224
dc.identifier.issn1679-6225
dc.identifier.scieloS1679-62252018000200208
dc.identifier.scopus2-s2.0-85049519906
dc.identifier.urihttp://hdl.handle.net/11449/176557
dc.language.isoeng
dc.relation.ispartofNeotropical Ichthyology
dc.relation.ispartofsjr0,559
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectGlycogen
dc.subjectLipids
dc.subjectMetabolic substrate
dc.subjectProtein
dc.subjectReproductive cycle
dc.titleMobilization of energetic substrates in the endangered catfish steindachneridion parahybae (Siluriformes: Pimelodidae): Changes in annual reproductive cycle in captivityen
dc.typeArtigo
unesp.author.orcid0000-0001-7198-7728[1]

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