google deaths copper river and make your call  
http://www.newsminer.com/the-dangers-of-dip-netting-at-chitina-shouldn-t-be/article_cf37964b-9bbe-5c64-9e85-25bf5e6e9d2d.html
I know friends who think Kenai is crowded but I also have a friend who won't fish the Copper river because they lost friends to the river.