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common bleak
The bleak (''Alburnus alburnus'') is a small freshwater coarse fish of the cyprinid family.
== Description ==
The body of the bleak is elongated and flat. The head is pointed and the relatively small mouth is turned upwards. The anal fin is long and has 18 to 23 fin rays. The lateral line is complete. The bleak has a shiny silvery colour; and the fins are pointed and colourless. The maximum length is approximately 25 cm.
In Europe the bleak can easily be confused with many other species. In England, young common bream and silver bream can be confused with young bleak, though the pointed upward turned mouth of the bleak is already distinctive at young stages. Young roach and ruffe have a wider body and a short anal fin.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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