They get their tuna from a number of different sources, including Japan's Tsukiji fish market. There are several different varieties of tuna, but bluefin is what you're most likely to find at high ...

Sadly, bluefin remains on the menu in some restaurants. The sushi market keeps prices for tuna high — a single tuna sold for $177,000 in a fish market in 2010 — and encourages illegal and unreported ...

More fish passes through Tsukiji than any other market in the world. Some estimates suggest that the market does more than $4 billion in business per year. The tuna in the market is delivered from ...

Further investigations uncovered that quantities of the fish were being traded illegally in Spain. Bluefin tuna shipments were ... as it is believed the illegal market has been smuggling 2.5 ...