Map_thumbnail_large_font

Amphiroa crustiformis

Status_ne_offStatus_dd_onStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE RHODOPHYTA FLORIDEOPHYCEAE CORALLINALES CORALLINACEAE

Scientific Name: Amphiroa crustiformis
Species Authority: E.Y.Dawson

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. Only known from two localities thus far. Not easily recognized except by specialists and difficult to collect. In addition, there is no information on population trends, hence it is assessed as Data Deficient.

Geographic Range [top]

Range Description: Amphiroa crustiformis is an endemic species from the Galápagos Islands, only known from two locations: San Cristóbal (Dawson 1963), and Elizabeth Bay, Isabela (UC 2004, K.A. Miller pers. comm.).
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: A. crustiformis is a rare species, only known from two sites. There is no current information on population trends.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: A. crustiformis has been reported to occur at shallow water, from the intertidal zone to 5 m depth on rocky substrata (Dawson 1963). The specimens collected at Elizabeth Bay were present in an urchin barren, at 3 to 5 m depth (UC 2004, 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. crustiformis is present 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 crustiformis. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 20 October 2014.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided