Comparação morfológica e bioquímica de duas populações alopátridas de Hypostomus margaritifer (Regan, 1907) (Osteichthyes, Loricariidae) da bacia do alto rio Paraná

Cláudio Henrique Zawadzki; Claude Weber; Carla Simone Pavanelli; Erasmo Renesto

doi:10.4025/actascibiolsci.v24i0.3369

Morphological and biochemical comparison of two allopatrid populations of Hypostomus margaritifer (Regan, 1907) (Osteichthyes, Loricariidae) from the upper Paraná river basin, Brazil

Cláudio Henrique Zawadzki UEM
Claude Weber MNH-Geneva
Carla Simone Pavanelli UEM
Erasmo Renesto UEM

DOI: https://doi.org/10.4025/actascibiolsci.v24i0.3369

Abstract

Two allopatrid populations of armoured catfishes, both referred to as Hypostomus margaritifer (Regan, 1907) (Osteichthyes, Loricariidae), were collected in the Corumbá reservoir (State of Goiás) and in the Itaipu reservoir (State of Paraná), Brazil. Differences in colour pattern, arrangement of abdominal platelets and maximum length of specimens were observed between these populations. Their taxonomic status was investigated through two different approaches: morphological and allozyme analysis. Morphometrics showed no expressive differences between these two populations and the holotype of H. margaritifer. A unique difference in allelic frequencies was observed in the sAat-A locus; nevertheless conspecificity of the two populations was confirmed by a high identity value (0.988). A complementary description of H. margaritifer is given as well as a discussion of the most important studies

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Author Biography

Cláudio Henrique Zawadzki, UEM

Possui graduação em Ciências Biológicas pela Universidade Estadual de Maringá (1993), mestrado em Ecologia de Ambientes Aquáticos Continentais pela Universidade Estadual de Maringá (1996) e doutorado em Ecologia de Ambientes Aquáticos Continentais pela Universidade Estadual de Maringá (2001). Lecionou Genética Molecular na Universidade Estadual do Centro-Oeste. Atualmente é professor adjunto da área de Zoologia na Universidade Estadual de Maringá. Tem experiência na área de Zoologia, com ênfase em Taxonomia de Espécies de peixes da família Loricariidae, atuando principalmente nos seguintes temas: aloenzimas, Hypostomus, Loricariidae, peixes, taxonomia, variabilidade genética. Sou credenciado ao curso de Pós-Graduação em Biologia Evolutiva da Universidade Estaudal do Centro-Oeste, com linha de pesquisa em Ecologia de Vertebrados. (Texto informado pelo autor) Última atualização do currículo em 06/05/2008 Endereço para acessar este CV: http://lattes.cnpq.br/1193726744591661

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Published

2008-05-13

How to Cite

Zawadzki, C. H., Weber, C., Pavanelli, C. S., & Renesto, E. (2008). Morphological and biochemical comparison of two allopatrid populations of Hypostomus margaritifer (Regan, 1907) (Osteichthyes, Loricariidae) from the upper Paraná river basin, Brazil. Acta Scientiarum. Biological Sciences, 24, 499-505. https://doi.org/10.4025/actascibiolsci.v24i0.3369

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Issue

Vol 24 (2002)

Section

Biology Sciences

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