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Amblyraja jenseni (Bigelow and Schroeder, 1950)
JENSENS SKATE
Life   Vertebrata   Fish   Rajidae   Amblyraja


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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Amblyraja jenseni (Bigelow & Schroeder , 1950)

Shorttail skate Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Amblyraja jenseni   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image Image of Amblyraja jenseni (Shorttail skate) Amblyraja jenseni
Female picture by Orlov, A.

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 165 - 2550 m (Ref. 114953 ).   Deep-water; 67°N - 39°N, 72°W - 10°W (Ref. 114953 )

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

Western Atlantic: Nova Scotia, Canada to southern New England, USA; Eastern Atlantic: Iceland (Ref. 12462 ); North Atlantic: Labrador Sea and off British Isles (Ref. 114953 )

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 74.3 cm TL male/unsexed; (Ref. 4926 ); 85.0 cm TL (female)

Short description Morphology | Morphometrics

Lacks large thorns on anterior margins and mid posterior parts of pectorals and on either side of mid-dorsal ridge on the disc. Upper surface plain light brown, either grayish or of chocolate hue, darker along margins of fins. Lower surface brownish gray, grayish white or perhaps pure white (Ref. 6902 ).

Biology     Glossary (e.g. epibenthic)

Benthic (Ref. 58426 ). Deep-water species. Prefers higher temperatures. Feeds on small fishes and crustaceans (Ref. 6902 ). Oviparous (Ref. 50449 ). Eggs have horn-like projections on the shell (Ref. 205 ).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ). Eggs have horn-like projections on the shell (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: 01 December 2008

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search ) | FishSource |

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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 | 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 ): 3.1 - 4, mean 3.6 (based on 69 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 ):  3.6   ±0.54 se; Based on food items. Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100). Vulnerability (Ref. 59153 ):  High vulnerability (56 of 100) .

Entered by Garilao, Cristina V. Modified by Capuli, Estelita Emily Fish Forum
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