Xyrichtys wellingtoni 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Perciformes Labridae

Scientific Name: Xyrichtys wellingtoni
Species Authority: Allen & Robertson, 1995

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2015
Date Assessed: 2007-05-25
Assessor(s): Allen, G., Victor, B. & Rocha, L.
Reviewer(s): Robertson, R. & Carpenter, K.
This species is only known from one location (Clipperton Island), with an area of occupancy estimated to be less than 10 km². Regional experts support the plausible threat of the increased duration and frequency of ENSO events that can cause severe and rapid declines for restricted-range, shallow-water species. This species qualifies for Vulnerable under criterion D2. However, more research is needed on this phenomenon, and this species should be reassessed when new information is available.
Previously published Red List assessments:
2010 Vulnerable (VU)

Geographic Range [top]

Range Description: This species is endemic to the Eastern Pacific, and is only found in the Clipperton Atoll (to France).
Countries occurrence:
France (Clipperton I.)
FAO Marine Fishing Areas:
Pacific – eastern central
Estimated area of occupancy (AOO) - km2: 10
Number of Locations: 1
Lower depth limit (metres): 70
Upper depth limit (metres): 15
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: No population information is available for this species. This fish was common in the one sand hole shallower than 50 m present at Clipperton Atoll, and in deeper water with extensive sand habitat.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This demersal species inhabits fine deep sand to depths of 70 m. Specimens were collected from a reef-surrounded sand patch (Allen and Robertson 1995).
Systems: Marine

Threats [top]

Major Threat(s): This species has a restricted distribution with an area of occupancy estimated to be less than 10 km2, and specific habitat type. In the Eastern Tropical Pacific, severe localized fish species declines have occurred after strong ENSO events that result in shallow waters that are too warm and nutrient poor for extended periods of time (Grove 1985, Edgar et al. 2009). The frequency and duration of ENSO events in this region of the Eastern Tropical Pacific appears to be increasing (Glynn and Ault 2000, Soto 2001, Chen et al. 2004). Given this species' restricted distribution and shallow water habitat, oceanographic environmental changes, such as those associated with future ENSO events, may have detrimental effects on the survival of this species.

Conservation Actions [top]

Conservation Actions: There are no conservation measures known for this species.

Citation: Allen, G., Victor, B. & Rocha, L. 2015. Xyrichtys wellingtoni. The IUCN Red List of Threatened Species 2015: e.T183739A85698736. . Downloaded on 26 November 2015.
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