Fish: a small world after all
b'The world is facing a global fish issue - a fissue, if you will. One third of all fish stocks are being overfished, and most of the efforts to prevent this involve exclusive zones in the ocean managed by individual countries. But a study released this week shows how the world\'s fisheries are all closely connected in a "small-world" network, and how overfishing in one zone can affect all of its neighbours. Izzie Clarke spoke with James Rising from the London School of Economics to find out how. Like this podcast? Please help us by supporting the Naked Scientists'