Flyfishing in British Columbia, video by Nicole Schafer; on catch and release by her friend Jamie.

Also look at:
http://flyfishing-blog.com/flyfishing-blog.com/2018/08/08/the-fight-to-protect-wild-salmon-from-salmon-farms-in-bc/
http://flyfishing-blog.com/flyfishing-blog.com/2016/09/13/salmon-documentary-by-bbc/
http://flyfishing-blog.com/flyfishing-blog.com/2019/02/23/a-special-year-for-a-special-fish-the-lnternational-year-of-the-salmon-has-started/