Then the fishmongers have to clean and defrost the giant fish. Next up is cutting the massive tuna into small pieces with a bandsaw. The market is a very noisy place, full of rumbling trucks ...

A Japanese sushi tycoon has paid a whopping $3.1m (£2.5m) for a giant tuna making it the world's most expensive. Kiyoshi Kimura bought the 278kg (612lbs) bluefin tuna, which is an endangered ...