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Dipturus batis

Raie à long nez, pocheteau gris (Dipturus batis)

Dipturus batis

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Superordo: Rajomorphii
Ordo: Rajiformes
Superfamilia: Rajoidea
Familia: Rajidae
Subfamilia: Rajinae
Genus: Dipturus
Species: Dipturus batis


Dipturus batis (Linnaeus), 1758


* Integrated Taxonomic Information System

Vernacular names
English: Blue skate or Flapper skate
Svenska: Slätrocka

The common skate or blue skate (Dipturus batis[1]) is the largest skate in the world.[2] Historically, it was one of the most abundant skates in the Northeast Atlantic and Mediterranean Sea. Despite its name, today it appears to be absent from much of this range.[3] Where previously abundant, fisheries directly targeted this skate, elsewhere it is caught incidentally as by-catch. Previously assessed as Endangered globally and Critically Endangered in shelf and enclosed seas in the 2000 IUCN Red List, it has been uplisted to Critically Endangered globally in 2006 [4]. In 2009, research showed that what was formerly listed as a single species, D. batis, should be instead classified as two separate species, D. flossada and the flapper skate, D. intermedia.[5][6]


The common skate can grow to 285 cm[7] long and weigh 220 lb (100 kg)[8], making it the largest skate in the world. Overall shape features a pointed snout and rhombic shape, with a row of spines or thorns along the tail.[9] The top surface is generally colored olive-grey to brown, often with a pattern of spots, the underside is lighter blue-grey.[7]


^ Sometimes listed as Raja batis which was the name given by Linnaeus, however this name is no longer considered valid.
^ Florida Museum of Natural History. "Ray and Skate: Basic Questions". Retrieved 2007-10-29.
^ Brander, K. (1981). "Disappearance of common skate Raja batis from Irish Sea". Nature 290 (5801): 48–49. doi:10.1038/290048a0.
^ "Marine Species." ICUN Global Marine Programme. 2003. ICUN. 26 November 2006 <http://www.iucn.org/themes/marine/marine_species.htm>.
^ Is 80-Year-Old Mistake Leading to First Species to Be Fished to Extinction?, ScienceDaily Nov 17, 2009
^ BBC News: Skate may be fished to extinction
^ a b Froese, Rainer, and Daniel Pauly, eds. (2007). "Dipturus batis" in FishBase. October 2007 version.
^ Kindersley, Dorling (2001,2005). Animal. New York City: DK Publishing. ISBN 0-7894-7764-5.
^ ARKive. "Common skate - Dipturus batis". Retrieved 2007-10-29.

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License