The green sunfish, Lepomis cyanellus, is established in many of Utah's warmer waters, although it is not native to the state, but rather to much of central and eastern North America. The green sunfish is a sport fish, but it is not as popular with Utah anglers as is the closely related bluegill.
Adult green sunfish eat large invertebrates and small fishes, whereas young green sunfish eat zooplankton and other small invertebrates. The species spawns in the spring and summer, and eggs hatch in about two days. Males build nests prior to spawning, and defend both eggs and young after spawning is complete. Green sunfish inhabit shallow, warm areas of lakes, ponds, and streams.