Fisheries experts have raised the red flag.
The world's fish and seafood populations will collapse by 2048 if current trends in habitat destruction and overfishing continue, resulting in less food for humans.
The unsustainable over-fishing together with pollution and other forms of over-exploitation is having a disaterous effect on the marine ecosystem.
Fisheries experts are recommending the establishment of "no-fishing" zones and ocean reserves, and banning destructive fishing practices.
They also want to promote commercial fish farming that can take the pressure off fisheries habitats, giving time for the depleting fish stocks to recover.