In the "duh" category, fish are thriving in a no-fishing zone in Australia. After looking at graphs, the 10 year old son of one of the scientists said if you stop fishing, don't you expect to find more fish? Uh...yeah.
Coral trout are increasing by up to 68% in areas where no fishing is allowed after just two years of a fishing ban in the Great Barrier Reef Marine Park. Meanwhile, in surrounding areas where fishing is allowed, coral trout numbers are unchanged. The no-fishing benefit for fish is obvious and showing up faster than expected.
Despite the obvious gains, the no-fishing zones were "opposed by many sport and commercial fishermen, fearful that their hobbies and livelihoods were threatened" according to the New York Times.
No-fishing zones are good for fish. And, as I was told by eminent fisherman and conservationist Frank Moore "take care of the fish first, and fishing will take care of itself." Amen.