Thunfisch - Der bedrohte Jäger

Tuna are among the top predators in the oceans. But the hunter is also the hunted: many species are overfished. Can we use the riches of the oceans without destroying them? Tuna are among the top predators in the oceans. But the hunter is also the hunted: many species are overfished. Can we use the riches of the oceans without destroying them?