|Scientific Name:||Apristurus sinensis Chu & Hu, 1981|
Apristurus sp. nov. A
|Taxonomic Notes:||Forms provisionally assigned to Apristurus sinensis from Australian waters are genetically distinct and may represent separate species (Last and Stevens 2009).|
|Red List Category & Criteria:||Data Deficient ver 3.1|
|Assessor(s):||Huveneers, C. & Duffy, C.A.J.|
|Reviewer(s):||Kyne, P.M. & Walls, R.H.L.|
|Contributor(s):||Walls, R.H.L. & Kyne, P.M.|
|Facilitator/Compiler(s):||Kyne, P.M. & Walls, R.H.L.|
The South China Catshark (Apristurus sinensis) is a small deepwater shark known from only the holotype from the South China Sea and three genetically distinct forms from Australia which are provisionally assigned to this species. However, these may be separate species. Until these taxonomic issues are resolved, the species cannot be assessed beyond Data Deficient.
|Previously published Red List assessments:|
|Range Description:||The distribution of the South China Catshark is poorly-defined due to taxonomic issues. The type location is the South China Sea, however the species name has also been provisionally used for a catshark off southeast Australia (from Newcastle to Beachport) and off Western Australia (North West Cape to Busselton and off Ashmore Reef) (Last and Stevens 2009). Also possibly occurs off New Zealand (Last and Stevens 2009).|
|FAO Marine Fishing Areas:|
Indian Ocean – eastern; Pacific – northwest; Pacific – southwest
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Three genetically distinct variations found in Australian waters may be separate species (Last and Stevens 2009).|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||The holotype of this deepwater catshark was taken at a depth of 537 m, while the Australian forms have been found between 940 and 1,290 m depth (Last and Stevens 2009). Maximum size is at least 75 cm (possibly 82 cm) total length (TL) and recorded size at maturity is 47 cm TL in males and 61 cm TL in females (Last and Stevens 2009). Apristurus species are relatively small sharks that live on or near the bottom on the continental slope. Where known, reproduction is oviparous with one egg per oviduct.|
|Use and Trade:||This species is not known to be utilized.|
|Major Threat(s):||In Australian waters most of the depth range of this species is outside the activity of commercial trawl fisheries so it is expected that bycatch levels would be low to negligible. In the Commonwealth Trawl Sector of the Southern and Eastern Scalefish and Shark Fishery, most areas below 700 m are closed to trawling, so there is no fishery operating in the depth range of this catshark in this area (Penney et al. 2014). The Western Deepwater Trawl Fishery operates within the range of this species, however current effort and catch is low with only two boats active in the 2012-13 fishing season (Marton and Mazur 2014).|
|Conservation Actions:||Areas below 700 m closed to trawling off southeast Australia would provide refuge for this species (Penney et al. 2014).|
IUCN. 2015. The IUCN Red List of Threatened Species. Version 2015-4. Available at: www.iucnredlist.org. (Accessed: 19 November 2015).
IUCN SSC Shark Specialist Group. Specialist Group website. Available at: http://www.iucnssg.org/.
Last, P.R. and Stevens, J.D. 2009. Sharks and Rays of Australia. Second Edition. CSIRO Publishing, Collingwood.
Marton, N. and Mazur, K. 2014. Western Deepwater Trawl Fishery. In: Georgeson, L., Stobutzki, I. and Curtotti, R. (eds), Fishery status reports 2013-14, pp. 271-280. Australian Bureau of Agricultural and Resource Economics and Sciences, Canberra.
Penney, A., Moore, A., Flood, M., Georgeson, L. and Curtotti, R. 2014. Commonwealth Trawl and Scalefish Hook sectors. In: Georgeson, L., Stobutzki, I. and Curtotti, R. (eds), Fishery Status Reports 2013-14, pp. 128-213. Australian Bureau of Agricultural and Resource Economics and Sciences, Canberra.
|Citation:||Huveneers, C. & Duffy, C.A.J. 2015. Apristurus sinensis. The IUCN Red List of Threatened Species 2015: e.T44225A70709147.Downloaded on 24 October 2017.|
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