Alborelle
Alburnus arborella is a species of ray-finned fish in the carp family Cyprinidae. It is a freshwater fish occurring in lakes and streams in Europe. It is distributed in Croatia, Italy, Slovenia, and Switzerland. This species is up to 10 centimetres long. It eats plankton and invertebrates such as insects. It spawns in riffles and on lakeshores.
Source: Wikipedia