|Scientific Name:||Acanthemblemaria mangognatha|
|Species Authority:||Hastings & Robertson, 1999|
|Red List Category & Criteria:||Vulnerable D2 ver 3.1|
|Assessor(s):||Bessudo, S., Dominici-Arosemena, A., Espinosa, H. & Hastings, P.|
|Reviewer(s):||Carpenter, K., Polidoro, B. & Livingstone, S. (Global Marine Species Assessment Team)|
This species is only known from the Revillagigedo 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 Revillagigedo Islands, including Clarion and Socorro Islands.|
|FAO Marine Fishing Areas:||
Pacific – eastern central
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||There is no information available on the population status of this species.|
|Habitat and Ecology:||This demersal, reef-associated species inhabits barnacles and worm tubes on shallow rocky shores to depths of 10 m.|
|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:||The Revillagigedo Islands are designated as a Biosphere Reserve, the Archipielago de Revillagigedos (WDPA 2006). This species requires close population monitoring given its very restricted range.|
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.
Hastings, P.A. and Robertson, D.R. 1999. Acanthemblemaria atrata and Acanthemblemaria mangognatha, New Species of Eastern Pacific Barnacle Blennies (Chaenopsidae) from Isla del Coco, Costa Rica, and Islas Revillagigedo, Mexico, and their Relationships with other Barnacle Blennies. Revue Français d'Aquariologie 25: 107-118.
IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org. (Accessed: 2 September 2010).
IUCN and UNEP. 2014. The World Database on Protected Areas (WDPA). Cambridge, UK Available at: www.wdpa.org .
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.
|Citation:||Bessudo, S., Dominici-Arosemena, A., Espinosa, H. & Hastings, P. 2010. Acanthemblemaria mangognatha. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 20 September 2014.|
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