Smallmouth bass are voracious predators in any habitat they occupy. By feeding on many types of aquatic life, they serve to convert energy from many small forms to a larger one that is more suitable for use by larger predators, such as humans. Young smallmouth bass may also serve as food for other fish. The sporting quality of smallmouth bass is legendary. They have been the topic of many books and articles in sporting magazines. In South Dakota, smallmouth bass have become a popular sport fish. They provide much angler excitement and enjoyment wherever they are found. Smallmouth bass feed during spring, summer and fall when the water temperature is near or above 50 F. Almost no feeding occurs during the winter. Adult fish feed on insects, crayfish, and small fishes, such as minnows, suckers, shad, and even bullheads. Growth is moderate, with smallmouth bass reaching 4 to 6 inches (10.2-15.2 cm) their first year, and 8 to 13 inches (20.3-33 cm) in three years. The largest smallmouth bass recorded for South Dakota is a 5 pound, 5 ounce (2.4 kg) fish caught in Pickerel Lake in 1991. Smallmouth bass seldom roam far from their home territory. During one study, fish that were tagged and released in Lewis and Clark Lake were usually recaptured at the original release site, although two fish were recaptured 25 miles upstream from the release site.