The Saguenay–St. Lawrence Marine Park, jointly run by Canada and Quebec, would probably be the best example. Forty years ago, we thought that beluga whales were a predator on cod and were decreasing cod. We licensed people to shoot belugas. We even bombed belugas from the air as a management tool. We now know that was incorrect. That park now is a global tourist attractor with huge economic opportunities. The village of Tadoussac has gone from being a poor fishing village to being a vibrant tourism community.
On November 23rd, 2017. See this statement in context.