So? That doesn't make you above the law, or guarantee that you will behave well. Even if you personally do all the right things, laws aren't written to satisfy individuals - there are plenty of fishing companies out there ruining the oceans.
Is goverment going to hire me, so I work for them? Where do I apply? Also I want gold medal for being a hero (minimum 130grams, 20carats), where is dispensery? I have several millions of heroes!!!!
Ah so the reasonable scenario is that things will be ruined for the lifetimes of almost everyone currently on earth. Not really that weird that some people would see that as a negative.
I imagine it's much easier to control on the trade side of things if governments really want to. Fish have to be brought relatively fresh to markets where there is demand.
Depending on the species. There are factory ships, such as the name suggest have onboard factories that process the fish into filets, pack, freeze and stow the fish, enabling the vessels to stay longer out at sea - limited either by their cargo capacity or quota. Arguably this is good for the quality of the fish as well since it is frozen fresh.
[1] https://en.wiktionary.org/wiki/sunlight_is_the_best_disinfec...