Bait fish Bait fish Bait fish are small fish caught for use as bait to attract large predatory fish, particularly game fish. Species used are typically those that are common and breed rapidly, making them easy to catch and in regular supply. Examples of marine bait fish are anchovies, gudgeon, halfbeaks such as ballyhoo, and scad. Some larger fish such as menhaden, flying fish, or ladyfish may be considered bait fish in some circles, depending on the size of the gamefish being pursued. Freshwater bait fish include any fish of the minnow or carp family (Cyprinidae), sucker family (Catostomidae), top minnows or
Fishing bait worms can grow up to 7 inches (18 cm) in length, but usually are between 3 and 4 inches (7–10 cm) long. Worm farmers also offer other worm species for bait, depending on availability, which usually depends on the prevalent climatic conditions. The capture, transportation and culture of bait fish can spread damaging organisms between ecosystems, endangering them. In 2007, several American states enacted regulations designed to slow the spread of fish diseases, including viral hemorrhagic septicemia, by bait fish. Because of the risk of transmitting "Myxobolus cerebralis" (whirling disease), trout and salmon should not be used as bait. Anglers