I have a fairly good understanding of this because we were closed from a part of the Juan de Fuca Strait for two years as an appeasement to people who wanted to see large areas closed to fishing during the time when the southern resident killer whales were there. Recent studies have shown that there's virtually no foraging activity at all in that, so the department has now reversed course and opened it up again.
It seems that there isn't science to support some of the actions, but there's incredible pressure to close areas. I personally believe that the recreational fishing community has virtually no impact whatsoever on the health and well-being of the southern resident killer whales.
I cite an example. Between the 1970s and the 1990s the department's own figures show that the fishing community, the public fishery for salmon, was at its peak and the largest effort was taking place, and at the same time during that 20 years the population of the southern resident killer whales went from 70 animals to 98, I believe. That is an indication. If you have more activity on the water from recreational fishing and a growth over that same 20-year period of southern resident killer whales, it shows that the recreational fishery isn't really the cause of the current decline.