This article for Bozeman Outdoors Magazine, published in the Spring of 2016 is well worth a read. The article is well referenced and gives a good insight into current understandings of fishing pressures and the impact on fish survival in Montana.
Considering what we are experiencing with the Bow River depleted trout populations, this articles has a similar message that is applicable to Alberta trout fisheries.
OUTSIDEBOZEMAN.COM
Like a Fish Out of Water | Outside Bozeman
The unseen impacts of catch-and-release.