The key to the success of the quota system, which is overseen by the Commission for the Conservation of SouthernBluefinTuna in Canberra, is that the permits in Australia, New Zealand and elsewhere are treated as private property and can be bought and sold or handed down to the next generation.
Finally, in 1993, Japan, Australia and New Zealand devised a quota system that allows the trawlers to catch a set amount of southernbluefin in the wild and not one tuna more.