Just back from a Vancouver Island Barkley Sound BC trip. Our guide works at the Robinson Creek hatchery out of Port Alberni when not guiding. He said they are mass marking Chinook now. Sounds like it's taken Canada a long time to get to this point. Plans are to expand. He thinks BC will eventually move marked select fisheries when they get enough marking participation. On another note. I remember hearing BC''s hatchery practices never transfered stocks out of watersheds, keeping genetics intact. That practice lead to a better quality hatchery product. To bad WA and the US did just the opposite.

https://www.canada.ca/en/fisheries-ocean...management.html