Amblyraja hyperborea (Collett, 1879)
Arctic skate
Amblyraja hyperborea
photo by DESCNA

 Family:  Rajidae (Skates)
 Max. size:  106 cm TL (male/unsexed)
 Environment:  bathydemersal; depth range 140 - 2500 m
 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).
 Diagnosis:  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:  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. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Agustin, Liza Q. - 04.04.94
 Modified by: Kesner-Reyes, Kathleen - 25.06.07
 Checked by: Agustin, Liza Q. - 06.04.94

Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.


Page created by Jen, 05.08.02, php script by kbanasihan 06/09/2010 ,  last modified by dsantos, 20/08/10