This is pole-and-line fishing. 50+ tons of tuna in a few hours ✌️🎣 

This is pole-and-line fishing. A centuries-old technique for catching tuna, thought to have originated in the Maldives.
Because the fish are taken one-at-a-time with specialised equipment, there is very little bycatch of other species. And only a small proportion of a school is caught, minimising overall pressure on the stock.