|Scientific Name:||Labrisomus dendriticus|
|Species Authority:||(Reid, 1935)|
Odontoclinus dendriticus Reid, 1935
|Red List Category & Criteria:||Vulnerable D2 ver 3.1|
|Assessor/s:||Hastings, P. & Dominici-Arosemena, A.|
|Reviewer/s:||Carpenter, K., Polidoro, B. & Livingstone, S. (Global Marine Species Assessment Team)|
This species is only known from two locations (Galápagos and Malpelo Islands). 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.
|Range Description:||This species is endemic to the Eastern Pacific, and is found only in the Galápagos and Malpelo Islands.|
|FAO Marine Fishing Areas:||
Pacific – southeast
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This species is considered common, and is the most abundant member of its genus in the Galápagos. The overall mean abundance for the species in Galapagos island was 2.55 (per 500 m²) (Edgar et al. 2004).|
|Habitat and Ecology:||This reef-associated species occurs in a wide range of habitats to depths of 25 m, from boulder strewn slopes and rocky reefs to ledges and undercuts along wall faces (Humann and Deloach 1993).|
|Major Threat(s):||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 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:||There are no known conservation measures for this species. However, this species distribution falls within the Galápagos Islands and Malpelo Island National Parks and UNESCO World Heritage Sites (WDPA 2006).|
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.
Edgar, G.J., Banks, S., Farina, J.M., Calvopina, M. and Martinez, C. 2004. Regional biogeography of shallow reef fish and macro-invertebrate communities in the Galapagos archipielago. Journal of Biogeography 31: 1107-1124.
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.
Grove, J.S. and Lavenberg, R.J. 1997. The fishes of the Galápagos Islands. Stanford University Press, Stanford.
Humann, P. and Deloach, N. 1993. Reef fish identification. Galápagos. New World Publications Inc., Florida.
IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org. (Accessed: 2 September 2010).
Reid, E.D. 1935. Two new fishes of the families Dactyloscopidae and Clinidae from Ecuador and the Galapagos. Copeia 1935: 163-166.
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:||Hastings, P. & Dominici-Arosemena, A. 2010. Labrisomus dendriticus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 17 April 2014.|
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