Japan eats more tuna than any other country in the world, consuming about a quarter of the global catch. As other countries increase their imports of tuna, Japan is making major quota cuts to protect the fish. Tokyo's Tsukiji Market, the largest wholesale fish market in the world, is making major adjustments to cope with the limited supply of tuna. Wholesale prices are on the rise, but restaurants are hesitant to pass the price hikes on to customers.