1. Introduce tight quotas and enforce them strictly.
2. Only allow imports from nations that follow the same, or a stricter, protocol.
2.a Alternatively, enforce an import quota or prevent imports completely.
3. Measure the effect and adapt quotas if necessary.
Now I am not a marine biologist, but I presume that the areas where quotas are enforced are of utmost importance in that matter. So the difficult part is to get many nations on board and define meaningful areas of the high seas that are then protected.
Isn't that already the case? Fish prices are kinda high, too. I personally don't like fish, it's a bit surprising that over-fishing is still a huge problem around Europe.
1. Introduce tight quotas and enforce them strictly. 2. Only allow imports from nations that follow the same, or a stricter, protocol. 2.a Alternatively, enforce an import quota or prevent imports completely. 3. Measure the effect and adapt quotas if necessary.
Now I am not a marine biologist, but I presume that the areas where quotas are enforced are of utmost importance in that matter. So the difficult part is to get many nations on board and define meaningful areas of the high seas that are then protected.