Gudgeon is a small freshwater fish species distributed in Europe and Asia. It inhabits streams and lakes. Since it is used as a bait-fish, the species is also introduced in some new areas.
■ Phylum Chordata – chordates
■ Class Actinopterygii – ray-finned fishes
■ Order Cypriniformes – carps, minnows, loaches and relatives
■ Family Cyprinidae – carps and minnows
■ Species Gobio gobio – Gudgeon