Not just the fish are impacted by the dams https://www.oregonlive.com/news/2018/11/feds-approve-plan-for-state-officials-to-kill-sea-lions-at-willamette-falls.h

Not just the fish are impacted by the dams https://www.oregonlive.com/news/2018/11/feds-approve-plan-for-state-officials-to-kill-sea-lions-at-willamette-falls.html https://www.oregonlive.com/news/2018/11/feds-approve-plan-fo... > The state applied to kill the sea lions “because their analyses showed that the high levels of predation by sea lions meant there was an almost 90% probability that one of the upper Willamette steelhead runs would go extinct,” the wildlife agency said in a statement.