Chondrus hancockii 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Rhodophyta Florideophyceae Gigartinales Gigartinaceae

Scientific Name: Chondrus hancockii 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)
No information is available on distribution, population size or trends. More data are needed to assess threat status, hence listed as Data Deficient.

Geographic Range [top]

Range Description:Chondrus hancockii is an endemic species to the Galápagos Islands, reported from: Floreana: Black Beach Achorage (Taylor 1945) and Loberia Chiquita (CDRS record 2002); Isabela: Urvina Bay (1974 CDS; 1995 CDS, L. Garke pers. comm.), Cabo Berkeley (1987 CDS, L. Garske pers. comm.) and Caleta Iguana (2004 UC, K.A. Miller pers. comm., 2001 CDS, L. Garske pers. comm.).
Countries occurrence:
Ecuador (Galápagos)
FAO Marine Fishing Areas:
Pacific – southeast
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:C. hancockii can be locally common (K.A. Miller and L. Garske pers. comm.).
Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:O. hancockii occurs from the mid-upper intertidal to the shallow subtidal (Taylor 1945, K.A. Miller and L. Garske pers. comms.).

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. As an intertidal species, is likely to be vulnerable to anomalous prolonged warming events, such as El Niño event.

Conservation Actions [top]

Conservation Actions: Ch. hancockii 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. Chondrus hancockii. The IUCN Red List of Threatened Species 2007: e.T63639A12701596. . Downloaded on 17 October 2017.
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