Earlier quoted context omitted.
This is a classic Tragedy Of The Commons. Establish ownable fishing rights per ocean areas, and regular greed will solve this problem.
We've heard similar arguments in post-soviet countries regarding farming land - private land owners will take better care of the land, will protect the wildlife, won't poison their own land, etc. Privatization didn't help ... small owners rent their land to the big ag, wildlife is still being decimated, land degradation accelerated, and now there are new deserts in central Europe (last week there was a sand storm in…
Wildlife isn't owned by anybody. Contrast this with cows. Cows are in no danger of extinction, despite mass slaughter of them.