Rajella ravidula 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Chondrichthyes Rajiformes Rajidae

Scientific Name: Rajella ravidula (Hulley, 1970)
Common Name(s):
English Smoothback Skate
Taxonomic Notes: Synonym = Raja (Rajella) ravidula Hulley, 1970

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Smale, M.J. (SSG Subequatorial Africa Regional Workshop, September 2003)
Reviewer(s): Cavanagh, R.D., Kyne, P.M. & Fowler, S.L. (Shark Red List Authority)
Although this skate is apparently rare and likely endemic to the west coast of Africa, most specimens have been caught at depths >700 m during research sampling. Thus commercial trawling is not likely to be impacting this species at present. However, the situation must be re-evaluated as trawl operations expand into deeper waters. Further research on life history of this poorly known species is also required.

Geographic Range [top]

Countries occurrence:
Namibia; South Africa
FAO Marine Fishing Areas:
Atlantic – southeast
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Rarely recorded from the slope but size of population unknown, and rarity may be an artifact of limited deeper water sampling in the region to date.
Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:A deep slope species, with most specimens taken deeper than 700 m. Nothing is known of the species' biology. Maximum size is >60 cm total length (TL), >36 cm disc width (DW) (Hulley 1988).

Threats [top]

Major Threat(s): Expansion of deep demersal trawl fisheries in the region. The species is not utilised.

Conservation Actions [top]

Conservation Actions: No conservation measures in place for this species. Research into life history and the monitoring of bycatch in any expanding deep-water fisheries is required.

Citation: Smale, M.J. (SSG Subequatorial Africa Regional Workshop, September 2003). 2004. Rajella ravidula. The IUCN Red List of Threatened Species 2004: e.T44620A10927471. . Downloaded on 18 June 2018.
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