Top tuna table tumbles takes Tokyo towards tighter times.

Prices on Tokyo, the world's biggest tuna market would appear to be suffering from buyer starvation. Today's market trade has seen a huge percentage of top tuna remain insold - for example, 127 of 271, the most expensive Bluefin tuna remained after the morning auction process - at 7,000 Yen (£53.30/Kg) a kilo that makes for a lot of money tied up in unsold fish on the market floor. Prices and demand are good for fish on Newlyn market at the moment with large monk tails making around £18 per kilo - that's over £100 a stone in old money!