Green Sunfish
Variant Names: Goggle-Eye, Rock Bass, Branch Perch
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Description:
The green sunfish, like warmouth, has a large mouth and a heavy, black bass body shape. The body is dark green, almost blue, dorsally, fading to lighter green on the sides, and yellow to white ventrally. Faint vertical bars are apparent on the sides. Some scales have turquoise spots. Lepomis, the generic name, is Greek and means "scaled gill cover." The species epithet cyanellus is also Greek and means "blue."
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Biology:
The green sunfish is a very versatile species, able to tolerate a wide range of environmental conditions, and tends to do very well when competition with other sunfish is minimal. Its ability to tolerate environmental extremes makes it ideal for survival in prairie streams where conditions are not stable, and it is often the first sunfish species to repopulate depleted areas. Green sunfish nest in shallow water colonies where nests are often closely packed. Gravel or rocky bottom sites are usually preferred for nest building. Spawning occurs in late spring, when water temperatures rise above 70°F, and may continue throughout the summer. Hybridization with other sunfish species is very common. Males aggressively defend their nests for 6-7 days after eggs are deposited, at which time fry are usually free-swimming. Because of their enormous reproductive potential, green sunfish often overpopulate small lakes and ponds. Adults feed on insects and small fish.
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