Prionitis galapagensis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	RHODOPHYTA	FLORIDEOPHYCEAE	HALYMENIALES	HALYMENIACEAE

Scientific Name:	Prionitis galapagensis
Species Authority:	W.R.Taylor

Assessment Information [top]

Red List Category & Criteria:	Data Deficient ver 3.1
Year Published:	2007
Assessor/s:	Miller, K.A., Garske, L. & Edgar, G.
Reviewer/s:	Stuart, S.N. & Carpenter, K.E. (Global Marine Species Assessment Coordinating Team)
Contributor/s:
Justification: An uncommon species known from a few localities with inadequate population trend information, therefore assessed as Data Deficient.

Geographic Range [top]

Range Description:	Prionitis galapagensis is an endemic species to the Galápagos Islands, reported from: Floreana: Black Beach Anchorage (Taylor 1945: type locality); Isabela: Elizabeth Bay (2004), Caleta Iguana (2004) and Punta Moreno (CDRS record 2001); Fernandina: western coast (CDRS record 2001).
Countries:	Native: Ecuador (Galápagos)
FAO Marine Fishing Areas:	Native: Pacific – southeast
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	P. galapagensis is uncommon. No information is available on population trends.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	P. galapagensis has been reported to occur from the low tide level (Taylor 1945) to at least 12 m depth (K.A. Miller and L. Garske pers. comms.).
Systems:	Marine

Threats [top]

Major Threat(s):	Presumably El Niño and climate change. Ecosystem interactions involving these two factors appear to have caused widespread decline in algal populations because of an increase in density of grazing sea urchins and other herbivores, following overexploitation of predators along with ENSO disturbances.

Major Threat(s):

Presumably El Niño and climate change. Ecosystem interactions involving these two factors appear to have caused widespread decline in algal populations because of an increase in density of grazing sea urchins and other herbivores, following overexploitation of predators along with ENSO disturbances.

Conservation Actions [top]

Conservation Actions:	P. galapagensis occurs within the Galápagos Marine Reserve (IUCN category VI); Galápagos Archipelago Particularly Sensitive Sea Area (PSSA); Galápagos Island World Heritage Site (UNESCO N (i)(ii)(iii)(iv)), and Galápagos Island Man and Biosphere Reserve (UNESCO).

Conservation Actions:

P. galapagensis occurs within the Galápagos Marine Reserve (IUCN category VI); Galápagos Archipelago Particularly Sensitive Sea Area (PSSA); Galápagos Island World Heritage Site (UNESCO N (i)(ii)(iii)(iv)), and Galápagos Island Man and Biosphere Reserve (UNESCO).

Citation:	Miller, K.A., Garske, L. & Edgar, G. 2007. Prionitis galapagensis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 20 June 2013.
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