Two endemic and endangered fishes, Poecilia sulphuraria (Alvarez, 1948) and Gambusia eurystoma Miller, 1975 (Poeciliidae, Teleostei) as only survivors in a small sulphidic habitat

@article{Tobler2008TwoEA,
  title={Two endemic and endangered fishes, Poecilia sulphuraria (Alvarez, 1948) and Gambusia eurystoma Miller, 1975 (Poeciliidae, Teleostei) as only survivors in a small sulphidic habitat},
  author={M. Tobler and R. Riesch and F. Le{\'o}n and I. Schlupp and M. Plath},
  journal={Journal of Fish Biology},
  year={2008},
  volume={72},
  pages={523-533}
}
In the Banos del Azufre in Tabasco, Mexico, only two poeciliid species, Poecilia sulphuraria and Gambusia eurystoma, were found in sulphidic habitats, whereas adjacent non-sulphidic habitats were characterized by a vastly different fish community. Exposure of fishes to water from a sulphidic spring showed that all species except for P. sulphuraria quickly lost motion control, probably because of the toxic properties of H2S. It is suggested that the fishes endemic to the Banos del Azufre are… Expand

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