Amblyraja hyperborea (Collett, 1879)

Arctic skate

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Elasmobranchii \| Rajiformes \| Rajidae
Synonyms	Raja hyperborea, Raja borea, ... more
Common names	Raie arctique, Raya ártica, Northern skate, ... more

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Image of Amblyraja hyperborea (Arctic skate)

Picture by Byrkjedal, I.

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

McEachran, J.D. and K.A. Dunn. 1998. (Ref. 27314)
Other references | Biblio | Coordinator : McEachran, John | Collaborators

Size / Weight / Age

Max length : 106 cm TL male/unsexed; (Ref. 6871)

Environment

Bathydemersal; marine; depth range 140 - 2500 m (Ref. 50610), usually 300 - 1500 m (Ref. 3167)

Climate / Range

Deep-water; -1°C - ? (Ref. 3167); 82°N - 50°S

Northeast Atlantic: Spitsbergen to the Greenland-Iceland-Faroe-Shetland Ridge to northern Norway. Northwest Atlantic: Davis Strait between southwestern Greenland and Canada. Southeast Atlantic: southern tip of South Africa (Ref. 6871). Eastern Indian Ocean: off southern Australia (Ref. 6871). Southwest Pacific: New Zealand (Ref. 6871). Eastern Pacific: Costa Rica, Panama, Colombia, and Ecuador (Ref. 6871).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Grey-brown with large dark blotches (Ref. 26346). Tail very short (Ref. 26346). Mid-dorsal row of stout thorns which extend from nuchal region to first dorsal fin. Thorns close posterior to the pelvic girdle larger than along the tail (Ref. 6902). Upper surface dark mouse gray, dark blue gray or dark brown with small rounded spots. Lower surface white and sooty in variable patterns (Ref. 6902).

Found on the lower continental slope (Ref. 6871). Benthic (Ref. 58426). Feed on all kinds of bottom animals (Ref. 3167). Prefer polar temperatures from hatching to maturity and eggs are incubated successfully and regularly in water as cold as 0°C (Ref. 6902). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsule measures 81-125 mm long and 50-80 mm wide (Ref. 41251).


IUCN Red List Status (Ref. 57073)	Threat to humans
Least Concern (LC)	Harmless

Human uses
Fisheries: of no interest


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| E-book \| Field guide \| Length-frequency wizard \| Life-history tool \| Point map

Special reports
Check for Aquarium maintenance \| Check for Species Fact Sheets \| Check for Aquaculture Fact Sheets

Download XML
Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High vulnerability (62 of 100)	Medium

Entered by Agustin, Liza Q.

Modified by Kesner-Reyes, Kathleen

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Page last modified by : elaxamana, 15 July 2009

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