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Genus + Species (e.g. Gadus morhua)
Classification / Names
| Catalog of Fishes (
Elasmobranchii (sharks and rays) >
(Skates and rays) >
Latin, raja, -ae = a sting ray (Raja sp.) (Ref.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 150 - 2117 m (Ref.
), usually 250 - ? m (Ref.
). Deep-water; 78°N - 42°N, 70°W - 30°E (Ref.
North Atlantic Ocean and adjacent fringes of the Arctic Region. Reported from the western Atlantic on eastern Grand Banks and Flemish Cap (about 46°N), a few records on the slope off Strait of Belle Isle to Davis Strait; probably continuous along the slope off Labrador; restricted in southwestern part of Greenland; eastern Atlantic off to most of Iceland to Faroe Islands, possible occurrence in western Irminger Sea and south to northern Rockall Trough; common in the Norwegian Deep and Skagerrak and northward along the Norwegian coast and shelf; periodic records in the southwestern Barents Sea.
Length at first maturity / Size / Weight / Age
, range 97 - ? cm
Max length : 125 cm TL male/unsexed; (Ref.
); max. published weight: 11.2 kg (Ref.
: 0. Snout moderately long, its tip pointed and somewhat protruding; upper surface predominantly smooth, only on head and front margins more or less prickly, tail entirely spinulose, underside smooth; up to 4 thorns in front of as well as behind eye, a continuous median row of 42-51 thorns from nape to first dorsal fin (Ref.
). Upper surface plain fawn color, slate grey or clay grey, lower surface white, with a grey longitudinal band along tail and grey blotch on either side of cloaca (Ref.
Occur in moderately deep water but mainly around 250 m in boreal and partly arctic latitudes (Ref.
). Maximum reported depth at 2,117 m (Ref.
). Benthic (Ref.
). Feed on all kinds of bottom animals (Ref.
), invertebrates and fishes (Ref.
). Males mature at ca. 90 cm TL and young hatch at ca. 15 cm TL (Ref.
). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref.
). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref.
). Egg capsules are 10.7 cm long and 7.7 cm wide (Ref.
Life cycle and mating behavior
). Paired eggs are laid. Embryos feed solely on yolk (Ref.
). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref.
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.
IUCN Red List Status (Ref.
Least Concern (LC)
; Date assessed:
12 February 2006
Threat to humans
; publication :
Sea Around Us
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Websites from users
Catalog of Fishes
IGFA World Record
Otolith Atlas of Taiwan Fishes
| Reef Life Survey |
Tree of Life
) | World Records Freshwater Fishing |
Estimates of some properties based on models
Preferred temperature (Ref.
): 1 - 8, mean 5.2 (based on 216 cells).
Phylogenetic diversity index (Ref.
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref.
): 3.6 ±0.50 se; Based on food items.
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
): High to very high vulnerability (67 of 100) .
Torres, Armi G.
Capuli, Estelita Emily
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- 20 July 2016
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