Stopping some fishing would increase overall catches

IN 2018, THE most recent year for which relevant data are available, people consumed more fish than they did either pork or beef or poultry. Humanity’s appetite for the sea’s bounty has more than doubled since 1990. Fish, whether wild caught or farmed, now make up nearly a fifth of the animal protein that human beings eat.In this context, running the world’s fisheries efficiently might seem a sensible idea. In practice, that rarely happens. Even well-governed coastal countries often pander to their fishing lobbies by setting quotas which give little respite to battered piscine populations. Those with weak or corrupt governments may not even bother with this. Deals abound that permit outsiders legal but often badly monitored access to such countries’ waters. And many rogue vessels simply enter other people’s fishing grounds and steal their contents.