We see an increase in local abundance of transient killer whales. The range is known to be very wide, so it could be just a localized response to increased harbour seal abundance. We do know that a favourite prey item in the Strait of Georgia is harbour seals, so there are a lot of observations of those predation events.
The harbour seal increased up until the late 1990s and then levelled out. The most recent stock assessment of harbour seals, which was just released a week ago, suggests that the abundance of harbour seals has just plateaued. It has not decreased or increased; it's stayed approximately the same since the late 1990s. That could be a result of, let's say, transient killer whale predation and a numerical response in terms of attracting them from other parts of the range.