Centroscyllium kamoharai

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	CHONDRICHTHYES	SQUALIFORMES	ETMOPTERIDAE

Scientific Name:

Centroscyllium kamoharai

Species Authority:

Abe, 1966

Common Name/s:

English	–	Bareskin Dogfish, Jelly Shark
French	–	Aiguillat Lisse
Spanish	–	Tollo Negro Liso

Assessment Information [top]

Red List Category & Criteria:	Data Deficient ver 3.1
Year Assessed:	2003
Assessor/s	Fowler, S.L. (SSG Australia & Oceania Regional Workshop, March 2003)
Evaluator/s:	Stevens, J., Simpfendorfer, C., Fowler, S. & Musick, J.A. (Shark Red List Authority)
Justification: A little-known deepwater dogfish likely to be highly vulnerable to population depletion through fisheries bycatch because of its highly K-selected biology. Fairly broad but patchy occurrence through the Western Pacific, but records are sparse and the species is not abundant in bycatch in any deepwater fishery. The lack of data on extent of occurrence, population size, or any indicator of population trend is considered to warrant a Data Deficient assessment, despite concerns that bycatch has been occurring and will continue to occur in deepwater fisheries, possibly through most of the species’ range.

Geographic Range [top]

Range Description:	Fairly broadly distributed in deep water in western Pacific. Restricted to a depth range of 500 to 1,200 m with possibly only limited exchange between subpopulations.
Countries:	Native: Australia; Japan Presence uncertain: Philippines
FAO Marine Fishing Areas:	Native: Pacific – northwest; Pacific – southwest; Pacific – western central

Population [top]

Population:	No information on population or subpopulation size, but apparently not abundant (records are infrequent).
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Habitat: on or near bottom on continental and insular slopes and seamounts, depth range 500 to 1,200 m. A little-known deepwater dogfish. Matures at 40 to 45 cm, maximum length 60 cm, litters of 3 to 22 pups, average 12. No seasonal reproductive cycle, no information on annual fecundity, gestation period, age at maturity or longevity. Like other deepwater dogfishes, this species likely has a very low resilience to depletion and a low intrinsic rate of population increase, hence highly vulnerable to bycatch in deepwater fisheries.
Systems:	Marine

Habitat and Ecology:

Habitat: on or near bottom on continental and insular slopes and seamounts, depth range 500 to 1,200 m. A little-known deepwater dogfish. Matures at 40 to 45 cm, maximum length 60 cm, litters of 3 to 22 pups, average 12. No seasonal reproductive cycle, no information on annual fecundity, gestation period, age at maturity or longevity. Like other deepwater dogfishes, this species likely has a very low resilience to depletion and a low intrinsic rate of population increase, hence highly vulnerable to bycatch in deepwater fisheries.

Systems:

Marine

Threats [top]

Major Threat(s):	Bycatch in deep trawl fisheries, but no data on catches and trends.

Major Threat(s):

Bycatch in deep trawl fisheries, but no data on catches and trends.

Conservation Actions [top]

Conservation Actions:	No conservation measures are currently in place for this species.

Conservation Actions:

No conservation measures are currently in place for this species.

Citation:	Fowler, S.L. 2003. Centroscyllium kamoharai. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 09 January 2009.
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