Thanks for posting..It does present an issue.That i have had ,for years.That being ice fishing,at a C&R lake.The fish,generally is caught.Dragged up onto the ice.Pictures taken[guessing].Then kicked down the hole.The article speaks to handling & the loss of the protective slime.Well i am only surmising that the cold exposure,would definitely effect that slime.Being that it might very well be frozen.Gone is the gentle release,allowing for the fish to recoup.Just dropped into the hole. Shame to see this happening & not just on our trout lakes.What about Walleye,Pike etc.