The oceans cover 70% of the Earth's surface and are teeming with life. Yet the Blue Planet is in deep trouble. With modern fishing technology, humans can fish almost anywhere in the world and little can escape. Whether fishing for the luxury market or the supermarket, targeting caviar or cod, many familiar marine animals are now highly endangered. Dr Callum Roberts of York University may have a solution which could save the seas. He believes that if different marine habitats were protected from all forms of fishing, the fish stocks would grow bigger and older and stocks would recover.
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