The emerald shiner is a small freshwater fish belonging to the family Cyprinidae. Typically measuring 2 to 3 inches in length, it is recognized for its vibrant greenish-gold body and distinctive dark lateral stripe. This species is commonly found in rivers and lakes across North America, particularly in the Great Lakes region and the Mississippi River basin. Emerald shiners are often seen in schools and prefer clear, shallow waters with abundant vegetation. They primarily feed on small invertebrates and plankton. Due to their abundance, they serve as an important food source for larger fish, such as largemouth bass and walleye.