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Amblyraja hyperborea  (Collett, 1879)

Arctic skate
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Native range | All suitable habitat | Point map | Year 2100
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Amblyraja hyperborea   AquaMaps   Data sources: GBIF OBIS
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Image of Amblyraja hyperborea (Arctic skate)
Amblyraja hyperborea
Picture by DESCNA


United Kingdom country information

Common names: Arctic skate, Arctic skate, Northern skate
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Swaby, S.E. and G.W. Potts, 1990
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/uk.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Stehmann, M. and D.L. Bürkel, 1984
National Database:

Classification / Names

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Main reference

Size / Weight / Age

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

Length at first maturity
Lm ?, range 94 - ? cm

Environment

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

Climate / Range

Deep-water; -1°C - ? (Ref. 3167), preferred 5°C (Ref. 107945); 82°N - 50°S

Distribution

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).

Biology     Glossary (e.g. epibenthic)

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. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: of no interest

More information

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

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Internet sources

BHL | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | ECOTOX | FAO(fisheries: production; publication : search) | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | Sea Around Us | SeaLifeBase | Tree of Life | uBio | uBio RSS | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record | Fishtrace

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5010 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.3   ±0.5 se; Based on diet studies.

Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100)

Vulnerability (Ref. 59153)
High vulnerability (61 of 100)
Price category (Ref. 80766)