Overview

Distribution

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.).
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Physical Description

Type Information

Type locality: South of Black Beach Anchorage, I. Santa Mar’a, Gal‡pagos Islands, Ecuador
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Source: AlgaeBase

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Ecology

Habitat

Habitat and Ecology

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.).

Systems
  • Marine
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
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
No information is available on distribution, population size or trends. More data are needed to assess threat status, hence listed as Data Deficient.
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Population

Population
C. hancockii can be locally common (K.A. Miller and L. Garske pers. comm.).

Population Trend
Unknown
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Threats

Major Threats
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.
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Management

Conservation Actions

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).
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