For the harvest of bluefin tuna, a large tow truck is dispatched

It’s easy for fishers, but it causes fish tons of stress, and floods their bodies with chemicals like cortisol, adrenaline, and lactic acid. Those chemicals make the fish taste bad, smell “fishy,” and rot quickly.
But there's a better way: a four-step Japanese method called ikejime. It involves sharp knives. And a brain spike.