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Previous issue date: 2013-02-14 / The genus monotypical Schizolecis was proposed by Britski & Garavello (1984), being Microlepidogaster guntheri Miranda Ribeiro, 1918 the type species. Its distribution occurs from the north of the state of Santa Catarina until the north of the state of Rio de Janeiro, Brazil, comprising several coastal river basins. Due to the act that the genus is widely distributed in such isolated river basins, it was suggested the possibility of more than one species being included in what today we know as Schizolecis guntheri. To test this hypothesis, the following morphometric analysis were performed: tradition biometry and comparision of the interval of proportions; multivariate analyses of Principal Components and Canonical Variables and multivariate analyses of geometric morphometry using Relative Warps. Perceptible differences were not found among the individuals of the populations analyzed of Schizolecis guntheri, being only detected a gender dimorphism among the samples from Ba?a da Ilha Grande, in the state of Rio de Janeiro. A taxonomic revision was performed, together with a redescription of the genus and species. According to the results, it is concluded that all populations in differents coastal river basins of the state of Santa Catarina until the state of Rio de Janeiro, are a single species Schizolecis guntheri. / O g?nero monot?pico Schizolecis foi proposto por Britski & Garavello (1984), com Microlepidogaster guntheri Miranda Ribeiro, 1918 a esp?cie-tipo. Sua distribui??o ocorre do norte do estado de Santa Catarina at? o norte do estado do Rio de Janeiro, Brasil, compreendendo diversas bacias hidrogr?ficas costeiras. Devido ao fato do g?nero estar amplamente distribu?do em bacias hidrogr?ficas isoladas, sugeriu-se que haveria a possibilidade de mais de uma esp?cie estar inclu?da no que hoje conhecemos como Schizolecis guntheri. Para testar essa hip?tese, foram realizadas as seguintes an?lises morfom?tricas: biometria tradicional e compara??o de intervalo de propor??es; an?lises multivariadas de Componentes Principais e Vari?veis Can?nicas e an?lises multivariadas de morfometria geom?trica utilizando Relative Warps. N?o foram encontradas diferen?as significativas entre os indiv?duos das popula??es analisadas de Schizolecis guntheri, sendo detectado apenas um dimorfismo sexual entre os exemplares pertencentes ? Ba?a da Ilha Grande, no estado do Rio de Janeiro. Foi realizada uma revis?o taxon?mica, juntamente com a redescri??o de g?nero e esp?cie. Conforme resultados, conclui-se que todas as popula??es nas diversas bacias hidrogr?ficas costeiras, de Santa Catarina ao Rio de Janeiro, s?o uma ?nica esp?cie, Schizolecis guntheri.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/256 |
| Date | 14 February 2013 |
| Creators | Kusma, Camila Munareto |
| Contributors | Reis, Roberto Esser dos |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Zoologia, PUCRS, BR, Faculdade de Bioci?ncias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 2008925231902741151, 500, 600, 36528317262667714 |
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