Bang on Chris. The way to get salmon back to rivers, and their necessary carcasses for the ecosystem, is to stop killing them.
Try telling that to commercial fishermen, FN fishers or heaven forbid, sports fishermen ![Grin ;D](http://www.fishingwithrod.com/yabbse/Smileys/default/grin.gif)
In some ways you are right but you miss one important point David, if it was not for a good number of people in each of the sectors you mentioned and others that truly care and try to do something about it, for the survival of our wild fish we would lose much more due to destruction of habitat and other numerous attacks on our fragile fish stocks, many man made others not so.
Sometimes one wonders if some people, business owners, including government too would like that, as development then could go on unabated, dams on the Fraser River at Moran etc.. We hope the new government now in power in Ottawa, will do more to look after our wild stocks than has been done in the past.
These people in this video I filmed today really care!!!
https://youtu.be/evph8ZEgJxU