Thalassoma lucasanum

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	PERCIFORMES	LABRIDAE

Scientific Name:

Thalassoma lucasanum

Species Authority:

(Gill, 1862)

Common Name/s:

English	–	Cortez Rainbow Wrasse
Spanish	–	Arcoiris De Cortes, Vieja Arco Iris, Vieja De Cortes, Vieja De Cortez

Synonym/s:

Julis lucasanus Gill, 1862

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2010
Assessor/s:	Allen, G.R., Robertson, R.D., Edgar, G., Rivera, F., Zapata, F., Merlen, G., Barraza, E., Victor, B. & Medina, B.
Reviewer/s:	Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.
Contributor/s:	De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P., Smith, J. & Livingston, F.
Justification: Thalassoma lucasanum has been assessed as Least Concern. This species is a small abundant wrasse in the in the eastern Pacific. It is not fished for consumption, but may be collected for aquarium trade. There are no major threats known.

Geographic Range [top]

Range Description:	Thalassoma lucasanum is found in southern Baja and the Central Gulf of California to Ecuador. It is also known from all the offshore islands except for Clipperton.
Countries:	Native: Colombia; Costa Rica; Ecuador (Ecuador (mainland), Galápagos); El Salvador; Guatemala; Honduras; Mexico; Nicaragua; Panama
FAO Marine Fishing Areas:	Native: Pacific – eastern central; Pacific – southeast
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Thalassoma lucasanum is abundant but there are no specific estimates of population (J.H. Choat, pers. comm. 2008 as pers. comm. from R. Robertson).
Population Trend:	Stable

Habitat and Ecology [top]

Habitat and Ecology:	Thalassoma lucasanum forms aggregations that feed on plankton around rocky and coral reefs to depths of 45 m. It also feeds on benthic crustaceans, and fish eggs; and the young sometimes "clean" parasites from other fishes. It is a pelagic spawner, and sex reversal is completed in 2–6 weeks (Sadovy and Shapiro 1987; Warner 1982).
Systems:	Marine

Threats [top]

Major Threat(s):	There are no major threats to Thalassoma lucasanum. It could possibly be collected for the aquarium trade.

Major Threat(s):

There are no major threats to Thalassoma lucasanum. It could possibly be collected for the aquarium trade.

Conservation Actions [top]

Conservation Actions:	There are no species-specific conservation measures known for Thalassoma lucasanum. This species distribution overlaps with several marine protected areas.

Conservation Actions:

There are no species-specific conservation measures known for Thalassoma lucasanum. This species distribution overlaps with several marine protected areas.

Citation:	Allen, G.R., Robertson, R.D., Edgar, G., Rivera, F., Zapata, F., Merlen, G., Barraza, E., Victor, B. & Medina, B. 2010. Thalassoma lucasanum. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 19 June 2013.
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