Fugupuff got it!
It is the Asp (Aspius aspius), a food and game fish found over most of Europe, though now rare in some areas due to habitat degradation and over fishing. (The picture is from a French site www.carnevenir.com)
Post one up Fugupuff!
Here is one that should not be too hard, it is large, and while mainly salt water and often brackish, there are a few places where it is found far inland in freshwater rivers and even lakes.