A refrigerated truck with ice displays some tuna fish at the main fish market in Sao Paulo, October 27, 2007. A total of 85 wholesale companies sell salmon from Chile, shark from Uruguay, tuna from Brazil, merluza from Argentina and prawns, sardines and squid from all over fill the stalls in the predawn hours. Last year it sold nearly 46,000 tons of fish. REUTERS/Paulo Whitaker (BRAZIL)