I was just looking at the SouthWest Fisheries Office, and there’s a Tokyo Fish Market Report, showing how many fish were sold, the price, and the source. The listing looks something like this:

BLUEFIN TUNA, fresh
06/21       1 fish     Boston                  2,200
06/23       3 fish     Italy       8,500-5,400-2,300
06/15       2 fish     Malta                   3,000
06/23      10 fish     Mexico      1,900-1,587-1,500
06/23       8 fish     Spain       4,900-3,075-2,200

The report reads like a yummy sushi menu, and now I know what I’m having for lunch :-)