At Atalaia's fish market, a noisy hangar with concrete floors and white-tile stalls, the pirarucu fish has disappeared since British journalist Dom Phillips and Brazilian Indigenous expert Bruno Pereira were shot dead on June 5. With the army, federal police and world media in town to investigate the men's disappearance, fishermen are taking no chances on pirarucu these days, even if landing one of the giants can bring in hundreds of dollars -- badly needed cash for most families in the region, one of the poorest in Brazil. "I assure you that no one can generalise that all fishermen are to blame because that's not the case, it's not the fishermen's fault," says Roberto Pereira da Costa, president of the local fishermen's association. IMAGES AND SOUNDBITES