Chub

Chub, any of several small, freshwater carp (family Cyprinidae) found in flowing waters, common to Europe and North America. The chub, 4–12 in (10–31 cm) long, has a large head and wide mouth and is usually a gray-brown or blue and silver color. Being a generally coarse and bony fish, it is not much valued as food, but is popularly used for bait and is caught for sport.