Commissioned by Radio Times.
Illustration for an episode of People Fixing the World on BBC World Service.
Fish have favourite colours and dolphins hate high-pitched noises. In an effort to save rapidly dwindling global fish stocks, scientists are trying to figure out how to attract the right fish into nets, and keep protected species away. On the southern coast of England, we meet the man who’s designed a hi-frequency gadget that warns dolphins to stay out of fishing nets. In Denmark, scientists show us how LED lights are able to modify the behaviour of cod in the North Sea. And in Oxford we hear from the researchers using satellite technology to help the Thai government stop criminals from plundering the oceans. Rumella Dasgupta meets the innovators who are shaking up the fishing industry.