Coastal countries tend to have jurisdictions that go out about 200 nautical miles, in areas that are called exclusive economic zones, and this is a good thing that they can control their fisheries in these areas, because the high seas, which are the darker areas on this map, the high seas, it's a lot harder to control things, because it has to be done internationally.
沿海国家可以管辖 从海岸线起 200 海里的范围， 这些地区叫做专属经济区。 这是一件好事， 因为沿海国家可以管理这些区域的渔业。 而想要管理那些深海区域 却要难得多。 请看地图上深色的区域。 因为深海区域的管理必须在国际上进行。