On the Columbia near Portland there are plenty of fish to chase. The latest fish counts at Bonneville showed 12,000+ Adult Chinook and 5,000+ Adult Coho. That is the daily count not the total for the season! So I'd say there are plenty of fish in that river right now. By the end of next week it may be a different story though as the "Kill Nets" are going in on Monday and again later in the week, all the way from the mouth to Bonneville.
GD