In managing, there is a number of animals that can be killed/caught. As the number of humans change them increases, that number gets taken faster.

First big sport fishery I was involved in managing was the '80 Lake WA sockeye. It was open for weeks and finally died a natural death as interest waned and fish moved into streams to spawn. Now, because of increased "technology" that same fishery lasts days.

If you want a months-long steelhead fishery then catch per day has got to be low. You can limit the number of anglers or you can limit their success or limit their access to fish. Managers are in a no-win situation because somebody's favorite means of fishing will be affected.

Look at how ell the up-river recs are treated because we worship marine mixed-stock fisheries for salmon. They've seen this for decades.