A small change to tuna fishing may help turtles stay off the hook. 

A study from Vietnam has found that hook design could be tweaked to avoid catching the wrong thing. 

Changing the hooks used when fishing for tuna could help reduce the numbers of protected sea turtle species caught up in the process, while keeping catch rates high, according to the study. 

In a new paper, researchers show that vessels that fished with a more circle-shaped hook had less bycatch of sea turtles, while still catching the same if slightly higher amounts of yellowfin and bigeye tuna and other commercial fish.  

The full study is accessible here.