Chinook Salmon

Oncorhynchus tschawytscha

Common Names

Chinook Salmon, King Salmon, Spring Salmon, Blackmouth, Tschawytscha, Chin, King, Magnum, Shaker

Lake Michigan Sport Catch in Wisconsin

200,000-300,000 per year

Preferred Temperature Range

50-57  °F

Length

20-35 inches

Weight

5-35 pounds.

State Record

8/25/83; 43 pounds, 3 ounces, Lake Michigan

Identification

Adults are iridescent green to blue‐green on the back and top of head. The sides are silvery, turning to white on the belly. They have black spots (at least a few) on the upper half of their body and on all fins. Chinook differ from coho salmon and other Great Lakes salmonids by having grey or black mouth coloration with teeth set in black gums, a squared tail with spots on both halves, and 15‐19 rays in the anal fin.