For most of us, fish come from a shop. They’re either laid out on ice in their full glory, neatly packaged in cans or hidden away inside fish fingers. An estimated 179 million tonnes of fish was removed from the ocean in 2018, and 87% of that ended up on our plates. But those fish have a backstory that’s far harder to see, but it all comes down to the fact that we’re taking too much.     Join Oceanographer and Physicist Helen Czerski, as she explore the extent of the problem, why people turn to illegal fishing, and how technology can help us better manage fisheries around the world.   With special thanks to Professor Callum Roberts from the University of Exeter, Dr Asha de Vos from Oceanswell, and Anna Sanders from Global Fishing Watch.    Follow or subscribe to Ocean Matters for free so that you never miss an episode. See omnystudio.com/listener for privacy information.