The common skate (Dipturus batis), also known as the blue skate, is the largest skate in the world, attaining a length of up to 2.85 m (9 ft 4 in).[2][3][4] Historically, it was one of the most abundant skates in the northeast Atlantic Ocean and the Mediterranean Sea. Despite its name, today it appears to be absent from much of this range.[5] Where previously abundant, fisheries directly targeted this skate and elsewhere it is caught incidentally as bycatch. The species was uplisted to critically endangered on the IUCN Red List in 2006[1] and it is protected within the EU.[6]
Research published in 2009 and 2010 showed that the species should be split into two, the smaller southern D. cf. flossada (blue skate), and the larger northern D. cf. intermedius (flapper skate).[4][7][8][9] Under this taxonomic arrangement, the name D. batis is discarded.[9][10] Alternatively, the scientific name D. batis (with flossada as a synonym) is retained for the blue skate and D. intermedius for the flapper skate.[11]
^ abEllis, J.; McCully-Philipps, S.R.; Sims, D.; Derrick, D.; Cheok, J. & Dulvy, N.K. (2021). "Dipturus batis". IUCN Red List of Threatened Species. 2021: e.T203364219A203375487. doi:10.2305/IUCN.UK.2021-2.RLTS.T203364219A203375487.en. Retrieved 19 November 2021.
^Froese, Rainer; Pauly, Daniel (eds.) (2017). "Dipturus batis" in FishBase. January 2017 version.
^Florida Museum of Natural History. "Ray and Skate: Basic Questions". Retrieved 29 October 2007.
^ abGriffiths AM, Sims DW, Cotterell SJ, El Nagar A, Ellis JR, Lynghammar A, McHugh M, Neat FC, Pade NG, Queiroz N, et al. 2010. Molecular markers reveal spatially-segregated cryptic species in a critically endangered fish, the common skate Dipturus batis. Proceedings of the Royal Society of London B 277: 1497–1503.
^Brander, K. (1981). "Disappearance of common skate Raja batis from Irish Sea". Nature. 290 (5801): 48–49. Bibcode:1981Natur.290...48B. doi:10.1038/290048a0. S2CID 4349670.
^ICES (11 October 2016)5.3.12 Common skate (Dipturus batis-complex (blue skate (Dipturus batis) and flapper skate (Dipturus cf. intermedia)) in subareas 6–7 (excluding Division 7.d) (Celtic Seas and western English Channel) Archived 18 January 2017 at the Wayback Machine. ICES Advice 2016, Book 5.
^Is 80-Year-Old Mistake Leading to First Species to Be Fished to Extinction?, ScienceDaily 17 November 2009
^"Skate may be fished to extinction". BBC News.
^ abIglesias SP, Toulhoat L, Sellos DY. 2009. Taxonomic confusion and market mislabelling of threatened skates: important consequences for their conservation status. Aquatic Conservation: Marine and Freshwater Ecosystems 20: 319–333.
^White W.T. and P.R. Last. 2012. A review of the taxonomy of chondrichthyan fishes: a modern perspective. Journal of Fish Biology 80: 901–917.
^Cite error: The named reference Last2016 was invoked but never defined (see the help page).
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