Ayu

The アユ, 鮎, 年魚, 香魚 or sweetfish, Plecoglossus altivelis, is an amphidromous fish, the only species in the genus Plecoglossus and family Plecoglossidae. It is a relative of the smelts, and is placed in the order Osmeriformes. Native to the Palearctic ecozone, it occurs in rivers, lakes, and coastal waters of western Hokkaidō in Japan ...
Found on http://en.wikipedia.org/wiki/Ayu

Ayu

Sweet fish
Found on http://www.encyclo.co.uk/local/21701
No exact match found