This fish was caught on Mille Lacs, and was initially tagged in 2004 (!) at a length of 20 inches. The best info I could find on average age/length relationships puts this walleye at 10-12 years old at the time of tagging. That makes this fish, at the time of its most recent recapture, somewhere in the neighborhood of 23-25 years old. A tired, worn out male walleye indeed!
Interestingly, the fish was also recaptured 5 years before we caught him, almost to the day, and hadn't grown a bit between those two dates. Notice also that this fish was a total home-body, having been caught and recaptured three times in the same region of the lake, on the west side near Shah-bush-kung Bay.
Science at work!