Cyprinidae – Various cyprinid gudgeons, members of the subfamily
Gobioninae (e.g. genera Gobio, Romanogobio), are found in lakes and rivers throughout Europe. Most commonly gudgeon refers to the species Gobio gobio. This is a
rheophilic and schooling species that occurs both in
river and
lake habitats across continental Europe and the
United Kingdom. G. gobio feeds on a variety of
invertebrates. This gudgeon is an easy fish to catch for beginners. A
British angler caught a record 5 ounce gudgeon in 1990 on the
River Nadder,
Wiltshire.[1]
Eleotridae – Known commonly as gudgeons, many species in the family
Eleotridae are also called sleeper gobies. Unlike gobies, Eleotridae gudgeons have paired
ventral fins rather than a fused ventral fin.[2] In
Australia, gudgeons from the family Eleotridae are widespread and are popular for
aquariums.
Ptereleotridae – Gudgeons in the family Ptereleotridae are primarily
marine species and are often associated with tropical coral
reefs.