Serranus socorroensis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	PERCIFORMES	SERRANIDAE

Scientific Name:

Serranus socorroensis

Species Authority:

Allen and Robertson 1992

Common Name/s:

English	–	Socorro serrano
Spanish	–	Serrano de Socorro, Socorro serrano

Assessment Information [top]

Red List Category & Criteria:	Vulnerable D2 ver 3.1
Year Published:	2010
Assessor/s:	Smith-Vaniz, B, Robertson, R., Dominici-Arosemena, A., Molina, H., Salas, E. & Guzman-Mora, A.G.
Reviewer/s:	Carpenter, K., Polidoro, B. & Livingstone, S. (Global Marine Species Assessment Team)
Contributor/s:
Justification: This species is restricted to the Revillagigedo Islands Marine Protected Area. 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 in this region of the Eastern Tropical Pacific. This species is listed as Vulnerable under Criterion D2. However, as this species is not well-known, more information on this species' depth range, population status, habitat and ecology is needed.

Geographic Range [top]

Range Description:	This species is endemic to the Revillagigedo Islands.
Countries:	Native: Mexico
FAO Marine Fishing Areas:	Native: Pacific – eastern central
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	There is no population information available for this species. It is only known from a few specimens, but is likely to be locally common.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species is demersal and inhabits sand-rubble areas around the fringes of rocky reefs, however, its depth range is relatively unknown. It has been found from 5-20 m. It feeds on mobile benthic crustaceans, octupus, squid, cuttlefish, and bony fishes.
Systems:	Marine

Threats [top]

Major Threat(s):	This species has a restricted range (only 4 small islands) in a very dynamic environment. 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 (e.g. the up-welling zone off the coast of Peru, Ecuador, Colombia, Panama and the offshore islands) appears to be increasing (Glynn and Ault 2000, Soto 2001, Chen et al. 2004). Given this species' restricted distribution and known shallow water habitat, oceanographic environmental changes, such as those associated with future ENSO events, may have detrimental effects on the survival of this species.

Major Threat(s):

This species has a restricted range (only 4 small islands) in a very dynamic environment. 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 (e.g. the up-welling zone off the coast of Peru, Ecuador, Colombia, Panama and the offshore islands) appears to be increasing (Glynn and Ault 2000, Soto 2001, Chen et al. 2004). Given this species' restricted distribution and known 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 species specific conservation measures. This species' range lies entirely within the Revillagigedo Marine Protected Area.

Conservation Actions:

There are no species specific conservation measures. This species' range lies entirely within the Revillagigedo Marine Protected Area.

Bibliography [top]

	Chen, D., Cane, M.A., Kaplan, A., Zebiak, S.E and Huang, D. 2004. Predictability of El Niño over the past 148 years. Nature 428: 733-736. Edgar, G.J., Banks, S.A., Brandt, M., Bustamante, R.H., Chiriboga, A., Earle, S.A., Garske, L.E., Glynn, P.W., Grove, J.S., Henderson, S., Hickman, C.P., Miller, K.A., Rivera, F. and Wellington, G.M. 2009. El Niño, grazers and fisheries interact to greatly elevate extinction risk for Galapagos marine species. Global Change Biology doi: 10.1111/j.1365-2486.2009.02117.x. Glynn, P.W. and Ault, J.S. 2000. A biogeographic analysis and review of the far eastern Pacific coral reef region. Coral Reefs 19: 1-23. Grove, J.S. 1985. Influence of the 1982-1983 El Niño event upon the ichthyofauna of the Galápagos archipelago. Charles Darwin Foundation for the Galapagos Islands, Quito, Ecuador. IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org. (Accessed: 2 September 2010). Robertson, D.R. and Allen, G.R. 2006. Shore fishes of the tropical eastern Pacific: an information system. Smithsonian Tropical Research Institute, Balboa, Panamá. Soto, C.G. 2001. The potential impacts of global climate change on marine protected areas. Reviews in Fish Biology and Fisheries 11(3): 181-195. World Database on Protected Areas (WDPA). 2006. World Database on Protected Areas.

Chen, D., Cane, M.A., Kaplan, A., Zebiak, S.E and Huang, D. 2004. Predictability of El Niño over the past 148 years. Nature 428: 733-736.

Edgar, G.J., Banks, S.A., Brandt, M., Bustamante, R.H., Chiriboga, A., Earle, S.A., Garske, L.E., Glynn, P.W., Grove, J.S., Henderson, S., Hickman, C.P., Miller, K.A., Rivera, F. and Wellington, G.M. 2009. El Niño, grazers and fisheries interact to greatly elevate extinction risk for Galapagos marine species. Global Change Biology doi: 10.1111/j.1365-2486.2009.02117.x.

Glynn, P.W. and Ault, J.S. 2000. A biogeographic analysis and review of the far eastern Pacific coral reef region. Coral Reefs 19: 1-23.

Grove, J.S. 1985. Influence of the 1982-1983 El Niño event upon the ichthyofauna of the Galápagos archipelago. Charles Darwin Foundation for the Galapagos Islands, Quito, Ecuador.

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org. (Accessed: 2 September 2010).

Robertson, D.R. and Allen, G.R. 2006. Shore fishes of the tropical eastern Pacific: an information system. Smithsonian Tropical Research Institute, Balboa, Panamá.

Soto, C.G. 2001. The potential impacts of global climate change on marine protected areas. Reviews in Fish Biology and Fisheries 11(3): 181-195.

World Database on Protected Areas (WDPA). 2006. World Database on Protected Areas.

Citation:	Smith-Vaniz, B, Robertson, R., Dominici-Arosemena, A., Molina, H., Salas, E. & Guzman-Mora, A.G. 2010. Serranus socorroensis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 18 June 2013.
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