The fish ranks sixth on Bill Roecker's All-Time Top Tuna list. Koonce's buddy Lon Mikkelson had the second-best tuna this season, at 294 pounds. Koonce said of his big catch: "We all saw his tail, so we knew he was big."
It was quite the struggle to get the tuna -- which weighed in at Fisherman's Landing on Wednesday -- in the boat. Koonce, who has been fishing for 20 years, credits deckhand Mark Clark with helping in the capture.