Brazilian Damilton Rodrigues da Costa holds a bristle-nosed catfish he caught in the Xingu River, a major tributary of the Amazon, near the town of Altamira in the Brazilian state of Para, February 11, 2006. Brazil is the world's biggest exporter of live Amazonian tropical fish. However, several Asian countries are now increasingly breeding the same Amazon species in captivity successfully. Picture taken February 11, 2006. REUTERS/Paulo Santos