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Fishing seasons & conditions by region

Brown Trout Salmo trutta

Brown Trout (Salmo trutta) fish identification illustration

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Brown Trout Size, Range & Diet

Typical size16–26 in, 2–10 lb
Maximumup to about 40 lb
RangeStocked through all five Great Lakes — Michigan, Huron, Ontario, Erie and Superior — plus their harbors, piers and tributary rivers.
HabitatHugs the shoreline in water under 50 ft — harbor mouths, breakwalls, warm river plumes and rocky shorelines.
DietAlewife, rainbow smelt and round goby out in the lake; insects, crayfish and minnows in the tributaries.

Sizes are typical rod-and-reel and documented maximum figures, not size limits — see the regulations links below for the rules where you fish.

How to Identify a Brown Trout

Tell it apart: Red-orange spots with pale halos and a nearly spotless tail mark a brown trout; steelhead and the salmon carry black-only spots and a clearly spotted tail.

Easily confused with: Steelhead, Coho Salmon, Chinook Salmon

Side by side: Brown Trout vs Coho Salmon, Brown Trout vs King Salmon, Brown Trout vs Lake Trout, Brown Trout vs Steelhead

How to Catch Brown Trout

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When & Where Brown Trout Are in Season

Peak Good Fair Slow
JanFebMarAprMayJunJulAugSepOctNovDec
Great Lakes Inshore

Brown Trout Regulations

Always check local regulations — seasons, size, and bag limits vary by state and species, and change year to year. When in doubt, release.

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