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An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region

Austrolebias wichi, new species, is herein described from seasonal ponds of the Bermejo river basin in the Western Chacoan district in northwestern Argentina. This species was found in a single pond, a paleochannel of the Bermejo River, which is seriously disturbed by soybean plantations surrounding...

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Autores principales: Alonso, Felipe, Terán, Guillermo Enrique, Calviño, Pablo, García, Ignacio, Cardoso, Yamila, García, Graciela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5955519/
https://www.ncbi.nlm.nih.gov/pubmed/29768422
http://dx.doi.org/10.1371/journal.pone.0196261
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author Alonso, Felipe
Terán, Guillermo Enrique
Calviño, Pablo
García, Ignacio
Cardoso, Yamila
García, Graciela
author_facet Alonso, Felipe
Terán, Guillermo Enrique
Calviño, Pablo
García, Ignacio
Cardoso, Yamila
García, Graciela
author_sort Alonso, Felipe
collection PubMed
description Austrolebias wichi, new species, is herein described from seasonal ponds of the Bermejo river basin in the Western Chacoan district in northwestern Argentina. This species was found in a single pond, a paleochannel of the Bermejo River, which is seriously disturbed by soybean plantations surrounding it. Despite intensive sampling in the area, this species was only registered in this pond where it was relatively scarce. Therefore, we consider this species as critically endangered. This species is the sister species of A. patriciae in our phylogenetic analyses and is similar, in a general external aspect, to A. varzeae and A. carvalhoi. It can be distinguished among the species of Austrolebias by its unique color pattern in males. Additionally, from A. varzeae by presenting a supraorbital band equal or longer than the infraorbital band (vs. shorter) and from A. patriciae by the convex dorsal profile of head (vs. concave). Further diagnostic characters and additional comments on its ecology and reproduction are provided.
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spelling pubmed-59555192018-05-25 An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region Alonso, Felipe Terán, Guillermo Enrique Calviño, Pablo García, Ignacio Cardoso, Yamila García, Graciela PLoS One Research Article Austrolebias wichi, new species, is herein described from seasonal ponds of the Bermejo river basin in the Western Chacoan district in northwestern Argentina. This species was found in a single pond, a paleochannel of the Bermejo River, which is seriously disturbed by soybean plantations surrounding it. Despite intensive sampling in the area, this species was only registered in this pond where it was relatively scarce. Therefore, we consider this species as critically endangered. This species is the sister species of A. patriciae in our phylogenetic analyses and is similar, in a general external aspect, to A. varzeae and A. carvalhoi. It can be distinguished among the species of Austrolebias by its unique color pattern in males. Additionally, from A. varzeae by presenting a supraorbital band equal or longer than the infraorbital band (vs. shorter) and from A. patriciae by the convex dorsal profile of head (vs. concave). Further diagnostic characters and additional comments on its ecology and reproduction are provided. Public Library of Science 2018-05-16 /pmc/articles/PMC5955519/ /pubmed/29768422 http://dx.doi.org/10.1371/journal.pone.0196261 Text en © 2018 Alonso et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Alonso, Felipe
Terán, Guillermo Enrique
Calviño, Pablo
García, Ignacio
Cardoso, Yamila
García, Graciela
An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region
title An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region
title_full An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region
title_fullStr An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region
title_full_unstemmed An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region
title_short An endangered new species of seasonal killifish of the genus Austrolebias (Cyprinodontiformes: Aplocheiloidei) from the Bermejo river basin in the Western Chacoan Region
title_sort endangered new species of seasonal killifish of the genus austrolebias (cyprinodontiformes: aplocheiloidei) from the bermejo river basin in the western chacoan region
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5955519/
https://www.ncbi.nlm.nih.gov/pubmed/29768422
http://dx.doi.org/10.1371/journal.pone.0196261
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