I heard a quote once - something like "if you plant it - they will come..."

National parks have stopped stocking their lakes years ago for just such a reason. Luckily there are many lakes where the trout continue to reproduce. Although they have purposely killed off fish populations in some lakes in sensitive areas to keep the fisherman away. They beleive that if the fish weren't part of the ecosystem from the begining naturally, then they shouldn't be there now.

Alpine lakes are always a hit a miss prospect. Many of them have very short windows of availabilty do to snow/ice lingering well into the summer. I've been to lakes where the fishing was so hot, you couldn't keep 'em off your hook. Then a few years later you couldn't see a fish in the entire lake. After the lake rested for a few years, the fishing was hot again (this was not a stocked lake). Andy amazingly enough, the fishing pressure almost always reflects the quality of the fishing.

I've been to many lakes that the fish are so successful at reproducing, that they are overcrowded and their growth is stunted. Catching fish for the frying pan in these lakes is encouraged.

Stocking alantic salmon in a fragile alpine lake is a pretty stupid thing to do. Word of mouth on something like that is all it would have taken- that's how I heard about it. His report just spurred it on a little faster.