The issue there would simply be how many sea lions and seals we're talking about. There is a large population of sea lions and seals in British Columbia and they do eat a lot of wild salmon. The public in British Columbia has quite an aversion to marine mammals being shot. When news came out as to the degree of marine mammal kills earlier this year, it got quite major headlines. I don't think the public sentiment would agree with that level of destruction of marine mammals at all.
On November 17th, 2011. See this statement in context.