This depletion has been achieved with industrial fishing. Large boats with large nets and large fleets with satellite tracking are stripping the oceans of fish. But the most prized large valuable fish are the most fertile. So as they are removed, so is the reproductive capacity of a species. Some species such as sturgeon are almost extinct. Now more countries are involved in this industrial removal of fish. Some countries sell fishing rights in their exclusive economic zones. And this leads to overfishing. China has the largest fishing fleet and is a major player in distant water fishing.
Professor of Fisheries
University of British Colombia