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Coho Salmon


Coho Salmon

Coho were first introduced to Michigan's Great Lakes in 1966 to control invasive alewife populations and are now considered the fish that really started the Great Lakes salmon fishery.

Also known as silver salmon


Physical Characteristics:
  • Coho salmon in Michigan are silver-sided anadromous fish averaging 5-12 pounds and 20-28 inches long, known for their spectacular aerial displays when hooked.
  • They have white gums with black tongues and minimal tail spotting, distinguishing them from other Pacific salmon.
  • Adult coho typically grow to about 22 inches and weigh around 3 pounds in Lake Superior, though Lake Michigan specimens are generally larger.

What to know

Habitat Distribution

  • They're found year-round in Lake Michigan and its tributaries, with significant populations in the Manistee, Platte, St.
  • Joseph, and Anna rivers, as well as Lake Superior tributaries like the Huron River system.

Key Locations

  • Top Michigan destinations include Manistee (famous for the 'Big Manistee' and Tippy Dam), Ludington (Pere Marquette River system), Frankfort (Platte Bay), Muskegon, St.
  • Joseph, Harbor Springs (Little Traverse Bay), and Traverse City (Boardman River).

Specific Spots

  • Nearshore action near harbors and piers in spring.
  • Stage near river mouths before spawning runs in fall.

Coho Salmon FAQ

Answers from onWater's species guide.

What are the best lures and bait for Coho Salmon in Michigan?

Blue Fox spinners, Michigan Stinger spoons, Moonshine spoons, Dr.eamweaver Super Slims, and flasher-fly combinations. Color selection matters: chrome/blue for low light, green/yellow for overcast conditions, and orange/copper for bright days. Glow spoons or alewife under floats for pier fishing.

When is the best time to fish for Coho Salmon in Michigan?

Spring (April-May) offers excellent nearshore action as fish move into warming waters near harbors and piers. Summer provides consistent action, while fall (September-November) brings spectacular fishing as coho stage near river mouths before spawning runs.

How do you catch Coho Salmon in Michigan?

Trolling techniques work best on the Great Lakes using downriggers at 40-80 feet deep in summer, with speeds of 2.0-3.0 mph for spoons and 1.5-2.5 mph for flasher/fly combos. For river fishing during runs, try twitching jigs, hoochie jigs, and small spoons.

What do Coho Salmon eat?

Their diet consists primarily of alewife (up to 90% in some areas), supplemented by aquatic invertebrates like mysid shrimp, spiny waterfleas, and terrestrial insects. Coho demonstrate flexible feeding behavior compared to more specialized species like Chinook salmon.

Where do Coho Salmon live in Michigan?

They're found year-round in Lake Michigan and its tributaries, with significant populations in the Manistee, Platte, St. Joseph, and Anna rivers, as well as Lake Superior tributaries like the Huron River system.

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