Could Japan's craving for this fish end up wiping out what is a favourite sushi staple? Ed Butler examines a classic case of overfishing, and whether fish farming is the answer. Show more
Discover 11,128,835 listings and 278,059 playable programmes from the BBC
Could Japan's craving for this fish end up wiping out what is a favourite sushi staple? Ed Butler examines a classic case of overfishing, and whether fish farming is the answer. Show more
The BBC's international radio station
