Get to know smallmouth bass: identifying features, habitat, food, and life cycle.
Identification & habitat
- Family: Sunfish; often nicknamed bronzeback or brownie.
- Jaw: Does not extend behind the rear edge of the eye.
- Pattern: Brown-green sides with separate vertical bars, without the largemouth's horizontal stripe.
- Fins: Dorsal sections are connected.
- Detail: Cheek scales are unusually small.
- Habitat: Clear, cool streams with clean rock and gravel; also lakes and reservoirs.
- Position: Often near riffles, outside the strongest flow.
- Regional size: Commonly 10–20 inches and ½–4 pounds.
Food & behavior
- Activity: Especially active around dawn and dusk.
- Food: Fish, crayfish, and aquatic insects.
- Curiosity: May follow a rooting turtle or sucker to grab disturbed prey.
Spawning, growth & lifespan
- Nest: Males sweep out gravel depressions with their tails.
- Spawning: Missouri peak is May, generally after water exceeds 60°F.
- Eggs: One nest can receive eggs from several females.
- Hatching: Often 2–3 days; males protect the fry afterward.
- Longevity: Missouri account reports about 10–12 years.
Angling & the bigger picture
- Fishing: Minnows, crayfish, hellgrammites, and imitations can work.
Sources & further reading
Research checked October 18, 2026. Common sizes and ages are examples rather than hard limits. Missouri spawning dates are regional unless another location is named. Consult the current local fishing rules for the water you plan to fish.