Get to know brown trout: identifying features, habitat, food, and life cycle.
Identification & habitat
- Scientific name: Salmo trutta; salmon family.
- Origin: Native to Europe and the British Isles.
- Spots: Black and red-orange body spots; pale halos around colored spots.
- Tail: Usually less forked and less spotted than rainbow trout.
- Fins: Soft-rayed, with small body scales.
- Habitat: Cold streams and lakes.
- Cover: Submerged logs, undercut banks, and deep water below riffles.
- Large adults: Feed heavily on fish and crayfish.
- Missouri fishery: Maintained by releases of hatchery fish.
- Locations: Spring-fed Ozark waters and Lake Taneycomo.
- Regional size: Commonly 8–15 inches in the guide; trophy fish grow far larger.
Food & behavior
- Food: Insects, crayfish, crustaceans, snails, and fish.
Spawning, growth & lifespan
- Longevity: Regional account gives about four years commonly, with eight or more possible.
Angling & the bigger picture
- Ecology: Can affect native prey and fish communities.
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.