Common name: Lake Trout, "salmon trout"
ID: Deeply forked tail, inside of mouth white, 10-11 rays on anal fin, color ranges from light green to dark green, grey or nearly black with light spots. Seem image 2 and 3 to differentiate from similar looking fish.
Life cycle: Spawn from October thru early November, on boulders, and females may lap from 2,000 to 20,000 eggs. Often use the same spawn bed each year. Mature after 6 or 7 years. Average weight around 10 pounds, but may weigh up to 50 pounds. Can live for more than 25 years.
Feed on: ciscoes, alewives, smelt, sulpin, crustaceans, insects, other fish, small mammals.
Where to find them: Spring/fall - Shallow waters just 10-15 ft deep. Will run rivers in the fall and be concentrated under dams, good for anglers to get. Summer/winter - up to 200 ft deep in search of cold waters from 45-55 degrees F. Still fishing or trolling 50 to 200 ft deep at this time can see good results. Some lakes get annual plantings.