krayfish,
Given the amounts of fish that are caught during the trico hatch and the water temps at that time, plus the use of light tippets by some, and what I have seen as being overplaying of fish by others (in warm water), it would not surprise me if delayed hooking mortality accounts for more mortality on this stream section than legal harvest. Furthermore, in a survey I conducted of anglers in and along the DH Area during a previous late June, I asked 50 anglers if they had harvested a trout from the DH Area within the previous five years. Only 16 percent (8 of 50) said yes, and some qualified their response by saying that they did so because the fish was clearly injured. I have done a number of angler use and harvest surveys along a number of stocked streams over a 30 plus year period, and this is not the kind of response that you would get or the kind of low harvest that occurs on streams that are heavily fished and heavily harvested. And remember, those streams had an 8 fish creel limit and later a 5 fish creel limit while the Tully DH area has a 3 fish limit, which means that even when people are harvesting at the Tully, their harvest is limited.