Rajella nigerrima 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Chondrichthyes Rajiformes Rajidae

Scientific Name: Rajella nigerrima (de Buen, 1960)
Common Name(s):
English Blackish Skate
Breviraja nigerrima de Buen, 1960
Malacoraja nigerrima (de Buen, 1960)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Lamilla, J.
Reviewer(s): Kyne, P.M., Cavanagh, R.D. & Fowler, S.L. (Shark Red List Authority)
The blackish skate is endemic to the Ecuador, Peru and Chile in the Southeast Pacific. It is a deepwater species recorded from the continental slopes at depths of 590 to 1,000 m. Reaches a maximum size of 45.7 cm total length (TL). Nothing known of its biology. Generally no fisheries in its deepwater habitat at present, but likely to be taken as bycatch if deepwater trawl fisheries develop and expand in this region.

Geographic Range [top]

Range Description:Southeast Pacific Ocean: known from Ecuador (03°15'S) to Mocha Island, Chile (37°45'S).
Countries occurrence:
Chile; Ecuador; Peru
FAO Marine Fishing Areas:
Pacific – southeast
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:A deepwater skate species recorded on the continental slopes, at 800 m depth off Algarrobo, Chile (33°20'S) by de Buen (1960), at depths of 780 to 960 m by McEachran and Miyake (1984), and 590 to 1,000 m depth off Chile (Lamilla, unpubl. data). Individuals examined off Chile were 13.7 to 45.7 cm TL (males, n = 28) and 5.4 to 12.0 cm TL (juvenile females, n = 27). Adult females possibly occur in deeper water. Nothing known of its biology.

Threats [top]

Major Threat(s): Generally no fisheries in its deepwater habitat at present. No information available. May be taken as bycatch as deepwater trawl fisheries continue to expand.

Citation: Lamilla, J. 2004. Rajella nigerrima. The IUCN Red List of Threatened Species 2004: e.T44655A10932685. . Downloaded on 21 June 2018.
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