Scientists in Sweden pilot a fish farm heated by a local power plant, where different fish species cohabit and utilise each other's waste.
Population growth and better living standards mean the demand for fresh fish, shellfish and crustaceans is constantly increasing. Aquaculture projects enhanced by AI are seeking to mitigate the damage to our oceans.
Humans have put a lot of obstacles in the way of fish wishing to migrate and spawn. A new 'Fitbit for Fish' will test just how stressful their journeys are.
