Uma nova espécie de Dadayius Fukui, 1929 (Digenea: Cladorchiidae) parasita do trato intestinal de Metynnis maculatus (Kner, 1858) (Characidae) da planície de inundação do alto rio Paraná, Brasil - DOI: 10.4025/actascibiolsci.v25i2.2044

Ana Carolina Figueiredo Lacerda; Ricardo Massoto Takemoto; Gilberto Cezar Pavanelli

doi:10.4025/actascibiolsci.v25i2.2044

**A new species of Dadayius Fukui, 1929 (Digenea: Cladorchiidae), parasite of the intestinal tract of Metynnis maculates (Kner, 1858) (Characidae) from the Upper Paraná River floodplain, Brazil** - DOI: 10.4025/actascibiolsci.v25i2.2044

Authors

Ana Carolina Figueiredo Lacerda UEM Author
Ricardo Massoto Takemoto UEM Author
Gilberto Cezar Pavanelli UEM - Maringá Author

DOI:

https://doi.org/10.4025/actascibiolsci.v25i2.2044

Keywords:

Metynnis maculatus, Digenea, Dadayius, planície de inundação do alto rio Paraná, Brasil

Abstract

A new species of Cladorchiidae (Trematoda, Digenea) was found in the intestinal tract of freshwater fish “pacu peva”, Metynnis maculates (Kner, 1858) from the Upper Paraná River floodplain, southern Brazil. The new species was classified in the genus Dadayius Fukui, 1929 by having non-lobate testis and a ventro-terminal acetabulum with postero median notch on rim, characters of the genus wich has only two previously known species. Some characters that differ the new species from D. marenzelleri (Daday, 1907) and D. pacuensis Thatcher, 1996 are: ceca not reaching acetabulum, vitellaria of limited extension, not reaching the level of posterior testis and the presence of two different egg sizes in two different maturity stages.

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Author Biography

Gilberto Cezar Pavanelli, UEM - Maringá

Atualmente é professor titular da Universidade Estadual de Maringá. Publicou vários livros e capítulos de livros sobre parasitas e patologia de peixes, além de vários artigos científicos em revistas especializadas no Brasil e no exterior. Exerceu o cargo de Pró-Reitor de Pesquisa e Pós-Graduação (1998-2002) e o cargo de Reitor da Universidade Estadual de Maringá (2002-2006). É membro fundador do Nupélia (Núcleo de Pesquisas em Limnologia, Ictiologia e AqÃ¼icultura) da UEM, além de docente credenciado nos Programas de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais e Biologia Comparada, tendo orientado vários pós-graduandos em nível de mestrado e doutorado. Atualmente é Pesquisador Científico nível 1A do CNPq. Suas pesquisas referem-se aos parasitas de peixes, patologia e ecologia de parasitas de peixes de água doce. Currículo Lattes

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Published

2008-04-17

Issue

Vol. 25 No. 2 (2003)

Section

Biology Sciences

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How to Cite

A new species of Dadayius Fukui, 1929 (Digenea: Cladorchiidae), parasite of the intestinal tract of Metynnis maculates (Kner, 1858) (Characidae) from the Upper Paraná River floodplain, Brazil - DOI: 10.4025/actascibiolsci.v25i2.2044. (2008). Acta Scientiarum. Biological Sciences, 25(2), 283-285. https://doi.org/10.4025/actascibiolsci.v25i2.2044