The sate used to want you to kill the dollie and bull trout because they would sit a couple feet behind a spawing salmon or steelhead and eat all the eggs. But they almost whent extinct. Now there are very few places that you can keep a dollie and all bulls have to be realeased. These fish are native and should be released imedeatly. I sure hope that it is not common to keep every dollie due to that reason.