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| Registros recuperados : 152 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pesca e Aquicultura. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
23/06/2020 |
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Data da última atualização: |
01/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
LIMA, A. F.; ALVES, R. R.; TORATI, L. S. |
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Afiliação: |
ADRIANA FERREIRA LIMA, CNPASA; ROSIANA RODRIGUES ALVES, CNPASA; LUCAS SIMON TORATI, CNPASA. |
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Título: |
Efficiency of color pattern as a method for sex identification in Arapaima gigas (Schinz, 1822). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Pan-American Journal of Aquatic Sciences, v. 15, n. 2, p. 87-92, 2020. |
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ISSN: |
1809-9009 |
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Idioma: |
Inglês |
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Conteúdo: |
his study evaluated the utility of color pattern as a tool for sex identification inbroodstocks of Arapaima gigas. To do so, 110 individuals from three study sites had their sexdetermined with vitellogenin (VTG). Then, presence of red pigmentation was systematicallyevaluated scoring from the head (0) counting scales from the base of pectoral fin towards fishtail (1, 2, 3,...). Sex and study site were the variables that had significant effects on the zero-inflated negative binomial model (p<0.01) to assess color pattern. Discriminant functionanalysis (DFA) yielded 82 % of correct classification for females and 76 % for males. With suchmethod, both sexes could be identified with similar hit rates. Differences were seen in sexualcolor pattern comparing the different study sites. Therefore, application of the method should berestricted to site-specific broodstocks rather than be a general rule for all populations. Inconclusion, sex identification in Arapaima broodstocks through color pattern may be considereda cheap alternative for broodstock management but should be used in combination with otheravailable methods to yield optimal rates for sex identification (i.e. endoscopy, cannulationand/or vitellogenin). |
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Palavras-Chave: |
Dimorfismo sexual; Identificação sexual. |
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Thesagro: |
Identificação; Manejo; Peixe; Pigmentação; Pirarucu; Reprodutor. |
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Thesaurus NAL: |
Arapaima gigas; Fish; Sexual dimorphism. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02039naa a2200289 a 4500
001 2123419
005 2020-10-01
008 2020 bl uuuu u00u1 u #d
022 $a1809-9009
100 1 $aLIMA, A. F.
245 $aEfficiency of color pattern as a method for sex identification in Arapaima gigas (Schinz, 1822).$h[electronic resource]
260 $c2020
520 $ahis study evaluated the utility of color pattern as a tool for sex identification inbroodstocks of Arapaima gigas. To do so, 110 individuals from three study sites had their sexdetermined with vitellogenin (VTG). Then, presence of red pigmentation was systematicallyevaluated scoring from the head (0) counting scales from the base of pectoral fin towards fishtail (1, 2, 3,...). Sex and study site were the variables that had significant effects on the zero-inflated negative binomial model (p<0.01) to assess color pattern. Discriminant functionanalysis (DFA) yielded 82 % of correct classification for females and 76 % for males. With suchmethod, both sexes could be identified with similar hit rates. Differences were seen in sexualcolor pattern comparing the different study sites. Therefore, application of the method should berestricted to site-specific broodstocks rather than be a general rule for all populations. Inconclusion, sex identification in Arapaima broodstocks through color pattern may be considereda cheap alternative for broodstock management but should be used in combination with otheravailable methods to yield optimal rates for sex identification (i.e. endoscopy, cannulationand/or vitellogenin).
650 $aArapaima gigas
650 $aFish
650 $aSexual dimorphism
650 $aIdentificação
650 $aManejo
650 $aPeixe
650 $aPigmentação
650 $aPirarucu
650 $aReprodutor
653 $aDimorfismo sexual
653 $aIdentificação sexual
700 1 $aALVES, R. R.
700 1 $aTORATI, L. S.
773 $tPan-American Journal of Aquatic Sciences$gv. 15, n. 2, p. 87-92, 2020.
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