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Danube bleak : ウィキペディア英語版 | Danube bleak
The Danube bleak or Caspian shemaya (''Alburnus chalcoides'') is a species of freshwater fish in the Cyprinidae family. It is found in Iran, Austria, Bosnia and Herzegovina, Bulgaria, Croatia, Germany, Hungary, Italy, Romania, Serbia, Slovenia, Turkmenistan, and Uzbekistan. ==Description== The Danube bleak is an elongate slim fish which can reach but a more normal size is 15 to 30 centimetres (6 to 12 in). There are 57 to 70 scales along the lateral line. The abdomen is compressed into a keel and the posterior end of this has no scales. The dorsal fin has eight to nine branched rays while the anal fin has fifteen to nineteen. This fish is morphologically quite variable which may be due to local adaptations to various habitats but is more likely to be due to several species being involved.
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「Danube bleak」の詳細全文を読む
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