As I said, these are localized effects. I have no doubt of that study, but you have to talk to the scientists who have been following these animals around. Dr. Trites' whole life is studying pinnipeds, which are seals and sea lions, and he is telling us, from looking at their scat—which is a nasty business, but they do it—that 3% of their diet is salmon.
So if you were to take the seals out and allow the hake to rise in population, it's very likely that you would cause more damage than if you left the seals there, which is natural. That said, there are specific rivers where I understand there are problems, and I would say that would require individual management. But overall they are not the problem we're having with our Pacific salmon.