Hey floater. The science of water chemistry and how it effects ecology beautifully explains and is the most probable "smoking gun" effect causing fish populations to diminish. Unfortunately it has been getting no scientific attention since the early 1990's. So I don't repeat myself you could probably go to my profile to find past posts that might be of interest to you. Some areas with stock assessment and no farms would be Rivers and Smith inlet streams. Google search them and you will see that they have similar depressed stocks that start to decline at the same general time as south coast streams. I have visited some of these streams many times since early 1990's to fish. I can attest to there being an equally depressed population of salmonids as anywhere else in this province. It is a shame that so much credit and attention has been given to FF's and seals in our salmon crisis but nobody is studying salmon and the supporting ecology as a whole or the water chemistry necessary for success. I guess it's just too complicated so why bother!