The spottail shiner, Notropis hudsonius, is a minnow that is native to parts of Canada and much of the United States east of the Rocky Mountains. Although the species is not native to Utah, it has been introduced to Willard Bay Reservoir, where it serves as a food source for wiper, walleye, and other sport fish.
The spottail shiner eats algae and small invertebrates. Spawning occurs in the spring, over areas with sand and gravel substrate. The spottail shiner is average size for a minnow, with adults usually attaining four to five inches in length.