Environmentalists fear the growing worldwide demand for sushi is hitting stocks of rare fish like the bluefin tuna, whose fatty underbelly has become the Japanese equivalent of caviar. Greenpeace will this autumn launch a campaign against restaurants and chefs in Britain who do not use fish from “ethical” sources. Sushi eating in Britain was once confined to wealthy Japanese bankers who paid up to £50 a plate. But the country now boasts about 350 different restaurants and Butlins at Bognor Regis has started serving platters of 10 pieces to holidaymakers for just £7.95. Supermarket sales have soared by 30% in each of the last two years. The Sunday Times 29/06/08 page 8