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Common skate : ウィキペディア英語版 | Common skate
The common skate or blue skate (''Dipturus batis''〔Sometimes listed as ''Raja batis'' which was the name given by Linnaeus, however this name is no longer considered valid.〕) is the largest skate in the world attaining a length of more than 250 cm. 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. 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.〔"Marine Species." ''ICUN Global Marine Programme.'' 2003. ICUN. 26 November 2006 .〕 In 2009, research showed 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''.〔(Is 80-Year-Old Mistake Leading to First Species to Be Fished to Extinction? ), ScienceDaily 17 Nov 2009〕〔(【引用サイトリンク】title=BBC News - Skate may be fished to extinction )〕 ==Description== The common skate can grow to 285 cm long and weigh 220 lb (100 kg), 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. The top surface is generally colored olive-grey to brown, often with a pattern of spots, and the underside is lighter blue-grey.〔 According to Mote Marine Laboratory, Skates so not get cancer.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Common skate」の詳細全文を読む
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