Epigean and subterranean ichthyofauna from Lagoa da Confusão karst area, Tocantins State

Authors

  • Milton José de Paula Universidade Federal do Pará e Museu Paraense Emílio Goeldi. Departamento de Zoologia
  • Alberto Akama Museu Paraense Emílio Goeldi. Cordenação de Zoologia, CZO Ictiologia
  • Everton Faustino de Oliveira Universidade Federal do Tocantins. Núcleo de Estudos Ambientais. Laboratório de Ictiologia Sistemática
  • Fernando de Morais Universidade Federal do Tocantins. Departamento de Geografia. Laboratório de Análises Geo-ambientais

DOI:

https://doi.org/10.7594/revbio.12.02.05

Keywords:

Biodiversity, Caves, Freshwater fishes, Troglophiles.

Abstract

An ichthyofaunistic survey conducted in four surface water bodies and one cave in a karstic area in the municipality of Lagoa da Confusão, State of Tocantins, sampled 74 species, mainly characiforms. Sixty six species were sampled in the surface waters. In the “Gruta Casa de Pedra” cave were sampled 29 species with a slightly numerical abundance compared to that found in the surface waters. Specimens of Rhamdia aff. quelen sampled in the cave showed different body sizes class . Their seasonal isolation inside the cave indicates probably that they are completing their life cycles in the subterranean environment, and probably represent a troglophilic population. More studies in this area deserve attention, considering that several of these sites suffer antropic disturbance.

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Published

2018-04-23

Issue

Vol. 12 No. 2 (2014)

Section

Artigo

License

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How to Cite

Paula, M. J. de, Akama, A., Oliveira, E. F. de, & Morais, F. de. (2018). Epigean and subterranean ichthyofauna from Lagoa da Confusão karst area, Tocantins State. Revista Da Biologia, 12(2), 29-35. https://doi.org/10.7594/revbio.12.02.05