The Japanese buy and consume 80% of the world’s bluefin tuna catch every year. If a typical sport fisherman off of the Atlantic coast would catch one, it’s immediately packed into a sarcophagus full of dry ice and on a plane to Tokyo. Spotter aircraft find fast moving schools of juvenile bluefin so tuna ranchers can corral them into floating pens out on the high seas and “grow” the fish back into port. Hook and line fisherman use electric harpoons to dispatch them instantly to avoid the fish tainting it's own meat with lactic acid.
Unfortunately, the less there are, the more valuable they become. This encourages increased illegal harvest. The risk vs. reward is more and more worth it, resulting in billions of dollars of illegal bluefin sales occuring every year. The failure of bluefin management is due to the fish's enormous range, wherein unregulated international fishing is taking place. The tuna crosses into many borders where people may not follow the regulations set by ICCAT (International Commission for the Conservation of Atlantic Tunas).
The high seas: where the laws are more like suggestions.
for shame...stop eating