Imagine you were in a car that was rolling quickly towards the edge of a cliff. The sensible thing to do would be to slam on the brakes as much as possible, knowing that it will take some time to stop, even with your best efforts and your foot to the floor. Another option would be just to take your feet off the pedals and hope it slows down in time. If it was an EU fisheries regulator who found themselves at the wheel, though, chances are they'd consult widely to ensure that they had the best advice possible on how to get out of the situation, and then totally ignore it...
All the available data shows that many fisheries around the world are in serious decline. Some face complete collapse (hence the 'falling off a cliff' analogy) unless drastic action is taken to end over-fishing and give threatened stocks time to recover. This can only happen by setting aside large areas of ocean as marine reserves, off-limits to all forms of fishing. But sadly the fishing industry itself still seems incapable of taking any meaningful steps to address the problem.