Cyprinodon labiosus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	CYPRINODONTIFORMES	CYPRINODONTIDAE

Scientific Name:

Cyprinodon labiosus

Species Authority:

Humphries & Miller, 1981

Common Name/s:

English	–	Thicklip Pupfish
Spanish	–	Cachorrito Cangrejero

Assessment Information [top]

Red List Category & Criteria:

Critically Endangered B1ab(v) ver 3.1

Year Published:

2009

Assessor/s:

Snoeks, J., Laleye, P. & Contreras-MacBeath, T.

Reviewer/s:

Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)

Contributor/s:

Justification:
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.

History:

1996	–	Endangered (Baillie and Groombridge 1996)
1996	–	Endangered
1994	–	Vulnerable (Groombridge 1994)
1990	–	Vulnerable (IUCN 1990)
1988	–	Vulnerable (IUCN Conservation Monitoring Centre 1988)
1986	–	Rare (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

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.
Countries:	Native: Mexico
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	The global population is decreasing, although detailed numbers are lacking.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	C. labiosus is a benthopelagic species that inhabits lakes, in clear to brownish water, with hard or soft substrates.
Systems:	Freshwater

Threats [top]

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).

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 [top]

Conservation Actions:	This species' range lies within a Ramsar site: Laguna de Chichankanab. It has also been listed as threatened by SEDESOL (1994).

Conservation Actions:

This species' range lies within a Ramsar site: Laguna de Chichankanab. It has also been listed as threatened by SEDESOL (1994).

Citation:	Snoeks, J., Laleye, P. & Contreras-MacBeath, T. 2009. Cyprinodon labiosus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 26 May 2013.
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