freshwater
Green Sunfish
Lepomis cyanellus
Stocky, slightly elongated body with a large mouth extending beneath the eye. Olive-green to bluish-brown back and sides, fading to yellow-white on the belly. Iridescent blue-green flecks and streaks on the gill cover and head, with a dark opercular flap edged in pale yellow or white.…
- Habitat
- Found in slow-moving streams, rivers, ponds, and lakes.…
- Size & weight
- Typically 4 to 7 inches in length and weighing between 2…
- Diet
- Carnivorous, feeding primarily on aquatic insects, insec…
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Physical characteristics
Stocky, slightly elongated body with a large mouth extending beneath the eye. Olive-green to bluish-brown back and sides, fading to yellow-white on the belly. Iridescent blue-green flecks and streaks on the gill cover and head, with a dark opercular flap edged in pale yellow or white. Dorsal, anal, and caudal fins often tipped with yellow or orange.
Habitat & distribution
Found in slow-moving streams, rivers, ponds, and lakes. Highly adaptable, often thriving in turbid waters, low oxygen environments, and areas with dense vegetation, rocky substrates, or submerged debris.
Behavior
Generally solitary and territorial, especially during the breeding season. Active primarily during daylight hours (diurnal).
Diet
Carnivorous, feeding primarily on aquatic insects, insect larvae, small crustaceans, snails, and occasionally small fish or fry.
Reproduction
Males construct saucer-shaped nests in shallow gravel or sandy substrates during the spring and summer. Males aggressively guard the eggs and newly hatched fry until they disperse.
Ecological role
Acts as an intermediate predator in aquatic ecosystems, helping control invertebrate populations while serving as a prey base for larger piscivorous fish and wading birds.
Similar species
Pumpkinseed and Bluegill. Distinguished by its larger mouth, elongated body shape, and distinct turquoise facial streaks.
Identification tips
Look for the large mouth extending past the middle of the eye, turquoise/blue-green facial lines, and yellowish-orange margins on the fins.
Interesting facts
Green Sunfish are known for their exceptional hardiness, capable of surviving in harsh environmental conditions that other sunfish species cannot tolerate. They readily hybridize with other centrarchid species, such as Bluegill and Pumpkinseed.