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Amphiroa galapagensis

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE RHODOPHYTA FLORIDEOPHYCEAE CORALLINALES CORALLINACEAE

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

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2007
Date Assessed: 2007-03-01
Assessor(s): Miller, K.A., Garske, L. & Edgar, G.
Reviewer(s): Stuart, S.N. & Carpenter, K.E. (Global Marine Species Assessment Coordinating Team)
Justification:
Coralline species in the Galápagos are in urgent need of reassessment. Nothing is known about population trends for this apparently uncommon species. Recent collections are known from only one location. Currently assessed as Data Deficient.

Geographic Range [top]

Range Description: Amphiroa galapagensis is an endemic species to the Galápagos Islands, reported from: Floreana: Black Beach Anchorage (Taylor 1945: type locality); Isabela: Tagus Cove (Taylor 1945), Caleta Iguana (Wellington 1975) and Cabo Berkeley (2004 UC, K.A. Miller pers. comm.); Fernandina: Punta Espinosa (Wellington 1975).
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: According to Taylor (1945), A. galapagensis was common on Black Beach Anchorage, Floreana and Wellington (1975) reported it as common at Punta Espinosa (Fernandina). However, there is no current information on population size or trends.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: A. galapagensis is the smallest of all the Amphiroa species, growing to 4 cm thallus length (K.A. Miller pers. comm.). It has been reported from the intertidal zone (Taylor 1945) and from the subtidal at 9 m (2004 UC, K.A. Miller pers. comm.).
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.

Conservation Actions [top]

Conservation Actions: A. 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. Amphiroa galapagensis. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 23 November 2014.
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