The Norwegian skate (Dipturus nidarosiensis), or black skate, is a species of skate found at depths of 200 m (660 ft) to over 1,600 m (5,200 ft) in the East Atlantic region.[1][2][3] Initially its range was believed to be restricted to the Norwegian Sea and North Sea to the Bay of Biscay. It is occasionally encountered off the western coast of Ireland, and historically has been found near Rockall and in the Norwegian Deep, though recent surveys have not identified the species there.[1] The species has frequently been confused with other skates, and since the late 1980s it has been confirmed to occur more widely, ranging from Iceland to Morocco, as well as off South Africa and in the Mediterranean Sea.[4][5][6]
This very large skate can reach a total length of up to 2.3 m (7.5 ft).[1] Females grow larger than males.[7] It is all dark brown-grey above, lacking distinct patterns. Its underparts are dark brown and often covered in blackish mucus, which separates it from some other skates in its range where adults generally have pale underparts (an exception is D. oxyrinchus, which however can be distinguished by its narrower snout).[5] The species is oviparous. The egg case consists in a very large capsule with a long rectangular shape and pointed horns at the corners, deposited on sandy and muddy bottoms.[6] At least in the Mediterranean Sea the primary prey are decapod crustaceans, followed by bony fish, while cephalopods, small elasmobranchs and polychaetes occasionally are consumed.[7]
Referencesedit
^ abcdStehmann, M.F.W.; Ellis, J.; Walls, R.; Lynghammar, A. (2015). "Dipturus nidarosiensis". IUCN Red List of Threatened Species. 2015: e.T161729A48927468. doi:10.2305/IUCN.UK.2015-1.RLTS.T161729A48927468.en. Retrieved 12 November 2021.
^Froese, Rainer; Pauly, Daniel (eds.) (2017). "Dipturus nidarosiensis" in FishBase. December 2017 version.
^Cannas, R.; Follesa, M. C.; Cabiddu, S.; Porcu, C.; Salvadori, S.; Iglésias, S. P.; Deiana, A. M.; Cau, A. (2010). "Molecular and morphological evidence of the occurrence of the Norwegian skate Dipturus nidarosiensis (Storm, 1881) in the Mediterranean Sea". Marine Biology Research. 6 (4): 341. doi:10.1080/17451000903428496. S2CID 83520016.
^ abLast, P.R.; White, W.T.; de Carvalho, M.R.; Séret, B.; Stehmann, M.F.W.; Naylor, G.J.P., eds. (2016). Rays of the World. CSIRO Special Publication. p. 266. ISBN9781501705328.
^ abFollesa, M.C.; R. Cannas; S. Cabiddu; A. Cau; A. Mulas; C. Porcu; A. Cau (2010). "Preliminary observations of the reproductive biology and diet for the Norwegian skate Dipturus nidarosiensis (Rajidae) from the Central Western Mediterranean Sea". Cybium. 36 (3): 473–477.
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dipturus, nidarosiensis, norwegian, skate, black, skate, species, skate, found, depths, over, east, atlantic, region, initially, range, believed, restricted, norwegian, north, biscay, occasionally, encountered, western, coast, ireland, historically, been, foun. The Norwegian skate Dipturus nidarosiensis or black skate is a species of skate found at depths of 200 m 660 ft to over 1 600 m 5 200 ft in the East Atlantic region 1 2 3 Initially its range was believed to be restricted to the Norwegian Sea and North Sea to the Bay of Biscay It is occasionally encountered off the western coast of Ireland and historically has been found near Rockall and in the Norwegian Deep though recent surveys have not identified the species there 1 The species has frequently been confused with other skates and since the late 1980s it has been confirmed to occur more widely ranging from Iceland to Morocco as well as off South Africa and in the Mediterranean Sea 4 5 6 Dipturus nidarosiensisConservation statusNear Threatened IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ChondrichthyesSubclass ElasmobranchiiSuperorder BatoideaOrder RajiformesFamily RajidaeGenus DipturusSpecies D nidarosiensisBinomial nameDipturus nidarosiensis Storm 1881 Synonyms 2 Raja nidarosiensis Storm 1881 basionym Dipturus nidrosiensis Storm 1881 misspelling Raia nidrosiensis Storm 1881 misspelling Raja nidrosiensis Storm 1881 misspellingThis very large skate can reach a total length of up to 2 3 m 7 5 ft 1 Females grow larger than males 7 It is all dark brown grey above lacking distinct patterns Its underparts are dark brown and often covered in blackish mucus which separates it from some other skates in its range where adults generally have pale underparts an exception is D oxyrinchus which however can be distinguished by its narrower snout 5 The species is oviparous The egg case consists in a very large capsule with a long rectangular shape and pointed horns at the corners deposited on sandy and muddy bottoms 6 At least in the Mediterranean Sea the primary prey are decapod crustaceans followed by bony fish while cephalopods small elasmobranchs and polychaetes occasionally are consumed 7 References edit a b c d Stehmann M F W Ellis J Walls R Lynghammar A 2015 Dipturus nidarosiensis IUCN Red List of Threatened Species 2015 e T161729A48927468 doi 10 2305 IUCN UK 2015 1 RLTS T161729A48927468 en Retrieved 12 November 2021 a b Bailly N 2013 Dipturus nidarosiensis Storm 1881 FishBase World Register of Marine Species Retrieved 8 April 2014 Froese Rainer Pauly Daniel eds 2017 Dipturus nidarosiensis in FishBase December 2017 version Cannas R Follesa M C Cabiddu S Porcu C Salvadori S Iglesias S P Deiana A M Cau A 2010 Molecular and morphological evidence of the occurrence of the Norwegian skate Dipturus nidarosiensis Storm 1881 in the Mediterranean Sea Marine Biology Research 6 4 341 doi 10 1080 17451000903428496 S2CID 83520016 a b Last P R White W T de Carvalho M R Seret B Stehmann M F W Naylor G J P eds 2016 Rays of the World CSIRO Special Publication p 266 ISBN 9781501705328 a b Guide of Mediterranean Skates and Rays Dipturus nidarosiensis Oct 2022 Mendez L Bacquet A and F Briand http www ciesm org Guide skatesandrays Dipturus nidarosiensis a b Follesa M C R Cannas S Cabiddu A Cau A Mulas C Porcu A Cau 2010 Preliminary observations of the reproductive biology and diet for the Norwegian skate Dipturus nidarosiensis Rajidae from the Central Western Mediterranean Sea Cybium 36 3 473 477 nbsp This Rajiformes article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Dipturus nidarosiensis amp oldid 1160985083, wikipedia, wiki, book, books, library,
