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Amblyraja hyperborea (Collett, 1879)
BOREAL SKATE
Raia hyperborea Collett, 1879; Raja hyperborea Collett, 1879; Arctic Skate

Life   Vertebrata   Fish   Rajidae   Amblyraja


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  • Australian Faunal Directory
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Following modified from Australian Faunal Directory
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http://biodiversity.org.au/afd/taxa/669cf0c8-64ae-4a18-a2d7-a813939d84af;jsessionid=E9820E188CCEE62AB676FBE4726E0DB7 ---> https://biodiversity.org.au/afd/taxa/669cf0c8-64ae-4a18-a2d7-a813939d84af;jsessionid=E9820E188CCEE62AB676FBE4726E0DB7
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Following modified from FishBase
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Amblyraja&speciesname=hyperborea ---> https://www.fishbase.in/Summary/speciesSummary.php?genusname=Amblyraja&speciesname=hyperborea
https://www.fishbase.in/Summary/speciesSummary.php?genusname=Amblyraja&speciesname=hyperborea ---> https://www.fishbase.in/summary/Amblyraja-hyperborea.html

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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Amblyraja hyperborea (Collett , 1879)

Arctic skate Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
Reviewed map
Amblyraja hyperborea   AquaMaps   Data sources: GBIF OBIS
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Pictures | Google image Image of Amblyraja hyperborea (Arctic skate) Amblyraja hyperborea
Picture by DESCNA

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335 ) .

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathydemersal; depth range 92 - 2925 m (Ref. 119696 ), usually 300 - 1500 m (Ref. 3167 ).   Polar; -1°C - 4°C (Ref. 119696 ); 82°N - 50°S, 180°W - 180°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Arctic: basins and continental slopes; from eastern Canada at Jones Sound, Smith Sound, and Baffin Bay to the Greenland, Norwegian, Barents, Kara and Laptev Seas; Chukchi and Beaufort Seas from the Chukchi Borderland to Banks Island, Canada. Probably have a much wider distribution, including the Southern Hemisphere.

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 94 - ? cm
Max length : 112 cm TL male/unsexed; (Ref. 114953 )

Short description Morphology | Morphometrics

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 ), probably most common on deep slopes and at abyssal depths (Ref. 114953 ). Benthic (Ref. 58426 ); meso- to bathybenthic, on muddy substrate (Ref. 119696 ). 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 ). Hatching size at 16-18 cm TL (Ref. 114953 ) (15 cm long in Ref. 119696 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205 ).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

McEachran, J.D. and K.A. Dunn , 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314 )

IUCN Red List Status (Ref. 120744 )

  Least Concern (LC)  ; Date assessed: 16 August 2015

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest FAO(fisheries: production ; publication : search ) | FishSource | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 0.3 - 8.8, mean 3.3 (based on 3242 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00562 (0.00271 - 0.01168), b=3.13 (2.95 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). 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 (64 of 100) .

Entered by Agustin, Liza Q. Modified by Capuli, Estelita Emily Fish Forum
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