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Lake Trout


Lake Trout

Lake Trout in Illinois are native fish found primarily in Lake Michigan, where they serve as the state's top native predator in the Great Lakes system. These char species can live 7-8 years on average.

The population was severely depleted by overfishing and sea lamprey attacks in the 1940s-50s, leading to near extinction, but management efforts including lamprey control and restocking have helped restore numbers.

Scientific Name: Salvelinus namaycush


Physical Characteristics:

Reaching 17-27 inches and 6 pounds typically, though they can grow much larger with maximum lengths of 50 inches. Lake Trout have distinctive light spots on a gray background, lower fins with white edges, and a forked tail.


What to know

Habitat Distribution

In Illinois waters, they inhabit the deep, cold waters of Lake Michigan year-round, typically found at depths between 50-200 feet, though they move to shallower waters during spring and fall.

Key Locations

Key locations include Julian's Reef (primary stocking site), Waukegan Reef, North Point Marina area, and Chicago harbors like Montrose Harbor.

Specific Spots

Target rocky reefs, drop-offs, and areas with current.

Lake Trout FAQ

Answers from onWater's species guide.

What are the best lures and bait for Lake Trout in Illinois?

Popular spoons include large patterns like Red Eyed Wiggler in fire tiger or hot pink, and Michigan Stinger in natural gold, silver, or bronze.

When is the best time to fish for Lake Trout in Illinois?

Late fall through early spring being prime seasons. Winter fishing (December-February) can be productive from piers and breakwalls when nearshore waters cool sufficiently.

How do you catch Lake Trout in Illinois?

Trolling is the primary technique, using spoons, flashers with flies, or cowbells with minnows near the bottom.

What do Lake Trout eat?

Their diet consists primarily of fish including ciscos, alewives, smelt, and sculpins.

Where do Lake Trout live in Illinois?

In Illinois waters, they inhabit the deep, cold waters of Lake Michigan year-round, typically found at depths between 50-200 feet, though they move to shallower waters during spring and fall.

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