|Scientific Name:||Cyprinodon labiosus|
|Species Authority:||Humphries & Miller, 1981|
|Red List Category & Criteria:||Critically Endangered B1ab(v) ver 3.1|
|Assessor(s):||Snoeks, J., Laleye, P. & Contreras-MacBeath, T.|
|Reviewer(s):||Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)|
Assessed as Critically Endangered, on account of its extremely small extent of occurrence, occurring in only one location and the continuing decline in the number of mature individuals, due to competition with exotic species and predation of fry.
|Previously published Red List assessments:|
|Range Description:||This species only occurs in Laguna Chichancanab, a complex of inland freshwater lakes following a fault line, near the centre of the Yucatan Peninsula, Mexico. Laguna Chichancanab has a surface area of 7.5km².|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The global population is decreasing, although detailed numbers are lacking.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||C. labiosus is a benthopelagic species that inhabits lakes, in clear to brownish water, with hard or soft substrates.|
|Major Threat(s):||This species' habitat is threatened by several factors, including the impacts of tilapia breeding (introduced in 1988) and by the poorly planned development of touristic activities. Pesticides and fertilizers used on surrounding agricultural lands can drain into the lagoon. An enlargement of agricultural land will increase deforestation, and possibly siltation in the lagoon (Ramsar 2004).|
|Conservation Actions:||This species' range lies within a Ramsar site: Laguna de Chichankanab. It has also been listed as threatened by SEDESOL (1994).|
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Miller, R.R. (with the collaboration of W.L. Minckley and S.M. Norris). 2005. Freshwater Fishes of Mexico. The University of Chicago Press, Chicago, Illinois.
Nelson, J.S., Crossman, E.J., Espinosa-Pérez, H., Findley, L.T., Gilbert, C.R., Lea, R.N. and Williams, J.D. 2004. Common and scientific names of fishes from the United States, Canada, and Mexico..
Ramsar. 2004. A Directory of Wetlands of International Importance. Available at: http://www.wetlands.org/RSIS/_COP9Directory/Directory/4MX051.html.
Varjo, M., Koli, L. and Dahlström, H. 2004. Kalannimiluettelo. Suomen Biologian Seura Vanamo Ry.
Wu, H.L., Shao, K.T. and Lai, C.F. 1999. Latin-Chinese dictionary of fishes names. The Sueichan Press, Taiwan.
|Citation:||Snoeks, J., Laleye, P. & Contreras-MacBeath, T. 2009. Cyprinodon labiosus. The IUCN Red List of Threatened Species 2009: e.T6154A12511005.Downloaded on 23 August 2017.|