An angler caught a 39-year-old lake trout while fishing near Sheboygan on Lake Michigan. The fish is the oldest in the history of the U.S. Fish and Wildlife Service mass marking program.

After living in the lake for 38 years, the fish was caught in 2023 by an angler fishing Lake Michigan waters east of Sheboygan. The laker had grown to 35 inches in length and a weight of 16 pounds.