Crenarctus bicuspidatus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Malacostraca Decapoda Scyllaridae

Scientific Name: Crenarctus bicuspidatus (de Man, 1905)
Arctus bicuspidatus de Man, 1905
Scyllarus bicuspidatus (de Man, 1905)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2011
Date Assessed: 2009-12-03
Assessor(s): Chan, T.Y.
Reviewer(s): Collen, B., Livingstone, S. & Richman, N.
Contributor(s): Batchelor, A., De Silva, R., Dyer, E., Kasthala, G., Lutz, M.L., McGuinness, S., Milligan, H.T., Soulsby, A.-M. & Whitton, F.
Crenarctus bicuspidatus has been assessed as Least Concern because it has a broad distribution and does not appear to be affected by any major threats (including commercial fisheries).

Geographic Range [top]

Range Description:This species ranges from South Africa and Madagascar, through the Gulf of Thailand, South China Sea to Japan, Indonesia, and New Caledonia (Holthuis 2002). It may be distributed as far east as the Mariana Islands (Sekiguchi 1990). Larvae have also been recorded from the Houtman Abrolhos Islands off the coast of Western Australia (Pearce et al. 1992).
Countries occurrence:
Australia (Western Australia); Cambodia; China (Guangdong, Guangxi, Hainan); Indonesia; Japan (Honshu, Kyushu, Shikoku); Madagascar; Malaysia; New Caledonia; Philippines; South Africa (KwaZulu-Natal); Thailand; Viet Nam
FAO Marine Fishing Areas:
Indian Ocean – western; Indian Ocean – eastern; Pacific – northwest; Pacific – western central
Additional data:
Lower depth limit (metres):108
Upper depth limit (metres):2
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Larvae of this species were predominant in lobster catches off the Pacific coast of central Japan, making up more than 90% of the catch (Sekiguchi 1986).
Current Population Trend:Unknown
Additional data:
Population severely fragmented:Unknown

Habitat and Ecology [top]

Habitat and Ecology:This species is found between 2-108 m, most commonly from 26 to 65 m (Holthuis 2002). Habitats include sandy bottoms with broken shells or dead coral, and less commonly coral reefs (Holthuis 2002). Larvae of this species show vertical diel migrations, occurring near the surface at night and between 40-100 m during the day (Booth et al. 2005). Spawning occurs between May and August in Japanese waters (Sekiguchi 1986).

Threats [top]

Major Threat(s): This species does not appear to be fished commercially in any part of its range, and levels of subsistence fishing are unknown.

Conservation Actions [top]

Conservation Actions: There are no species-specific conservation measures in place for this species.

Citation: Chan, T.Y. 2011. Crenarctus bicuspidatus. The IUCN Red List of Threatened Species 2011: e.T185093A8353081. . Downloaded on 23 June 2018.
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