Smallmouth Bass


Other Common Names:

Brown bass, browny, bronzeback, green trout, river bass, jumper, Oswego bass, redeye bass


Scientific Name:

Micropterus dolomieu



Feeds on crayfish, fish, and insects



Prefers natural lakes and streams with gravel bottoms



Average length is 9 to 14 inches



Golden green sides and back with faint, wavy olive blotches along the sides, 5 olive-green bars radiate back from the red eye and 1 radiates forward; spiny and soft portions of dorsal fin broadly connected


Photo and text courtesy of

Iowa Department of Natural Resources

Iowa Fish and Fishing by James R. Harlan and Everett B. Speaker with James Mayhew; color illustrations by Maynard F. Reece

Fishes of Wisconsin by George C. Becker

Fishes of Indiana published by Indiana Department of Conservation, Division of Fish and Game (1964)


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