Overview

Distribution

Range Description

Records of this species come from southern New Caledonia (Cherbonnier and Feral 1984).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is a large species (up to 50 cm) that occurs on sandy substrate. It can live buried in the sand and rubble and is sometimes found in locations of increased hydrodynamics. Generation length is largely unknown for these species. Body size is not a good indicator of age or longevity. There is some indication, however, that many echinoderms do not go through senescence, but simply regenerate. Therefore generation length cannot be estimated, but is assumed to be greater than several decades (20-40 years) in a natural, undisturbed environment.

Systems
  • Marine
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Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 6 - 6
 
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
D2

Version
3.1

Year Assessed
2013

Assessor/s
Conand, C. & Purcell, S.

Reviewer/s
Polidoro, B., Carpenter, K.E., Knapp, L. & Harwell, H.

Contributor/s

Justification
This species is endemic to the southern region of New Caledonia. Although this species is not fished presently, current trends in its location indicate that species of lesser commercial value may be targeted in the near future. This species is therefore listed as Vulnerable.
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Population

Population
This species is relatively rare. In over 1400 transects in New Caledonia during 2006-2008, Purcell et al. (2009) found only 1 individual. Conand (2006) reports its mean density as 37 individuals per hectare, up to a max of just over 100 per hectare. Extensive surveys in the Pacific Islands by the SPC ProcFISH-C Program failed to find a single individual in other countries.

Population Trend
Unknown
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Threats

Major Threats
In south New Caledonia, fishermen have begun to target species of lesser commercial value. If this trend continues, this species may be affected by harvesting.
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Management

Conservation Actions

Conservation Actions
There are no known species specific conservation measures for this species. However, there are several marine protected areas along the coast of southern New Caledonia that likely include this species.
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