This Oct. 15, 2012 photo shows whole tunas being inspected at the Tsukiji fish market in Tokyo. Tsukiji is the biggest fish market in the world, and tourists willing to line up well before dawn can view the rapid-fire auctions where the giant fish are sold. (AP Photo/Fritz Faerber)

This Oct. 15, 2012 photo shows whole tunas being inspected at the Tsukiji fish market in Tokyo. Tsukiji is the biggest fish market in the world, and tourists willing to line up well before dawn can view the rapid-fire auctions where the giant fish are sold. (AP Photo/Fritz Faerber)