A potential bidder carefully examines pieces of Tuna in order to ascertain the quality and to estimate its price ahead of the Tuna auction at the Tsukiji fish market on February 28, 2012 in Tokyo, Japan. Handling nearly 3000 tons of fish a day, the Tsukiji fish market located in central Tokyo is the biggest wholesale fish and seafood market in the world. The market is scheduled to close in 2012 and relocate to the seaside area of Toyosu due to the larger demand for land in central Tokyo. (Photo by Daniel Berehulak /Getty Images)

A workers wheels boxes used to store fish and other seafood goods, which will then be packed with ice at the Tsukiji fish market on February 28, 2012 in Tokyo, Japan. (Photo by Daniel Berehulak /Getty Images)

Workers use an electric saw to cut a frozen Tuna fish, purchased at the morning Tuna auction, at the Tsukiji fish market on February 28, 2012 in Tokyo, Japan. (Photo by Daniel Berehulak /Getty Images)

A worker takes a short break to eat some food as Tuna is seen refrigerated, ready for sale at the Tsukiji fish market on February 28, 2012 in Tokyo, Japan. (Photo by Daniel Berehulak /Getty Images)

Customers point to a fish they would like to purchase at the Tsukiji fish market on February 28, 2012 in Tokyo, Japan. (Photo by Daniel Berehulak /Getty Images)

Fish are displayed for sale packed in ice at the Tsukiji fish market on February 28, 2012 in Tokyo, Japan. (Photo by Daniel Berehulak /Getty Images)