Yes, this is a pretty complicated issue. Of course, seals and various fish stocks have co-evolved over millennia. We need to understand the predator-prey interactions. Yes, seals can eat salmon, for instance, on the west coast or on the east coast, but seals also eat fish like hake that also eat salmon. So more seals can make life easier for salmon. It just depends where the seals are.
When we look at the diet of seals, certainly on the west coast, salmon are not the main part of their diet. We need to understand more about these interactions. There is a ceremonial hunt for seals on the west coast, but before we can take action, we need to understand the situation better.