marcelo carrasco: this is actually the best part of the beach. we waited for four years for the mussels to get big enough to harvest. but just as we were preparing to dodo that the algae bloom came d killed all the crustaceans, shellfish and mussels. >> algae bloom is a rapid increase in algae that's deadly not just to shellfish, but also toxic to h humans. all fishing and mussel farming has been prohibited here. it may take months until the authorities lift the ban. the reregion's salmon farmers he also been hit hard by the algae bloom. after norway, chile is the world's largest t producer off salmon. the e industry is wortrth billi. but the algae bloom destroyed 20 percent of fish stocks. the salmon simply suffocated. the dead fish had to be e remov, and the chilean government allowed the farmers to simply dump 4000 tons of them into then open sea. for the head of chile's largestt slamon p pducer it''s an economc disasterer. >> well the calculatioisis something in the neighborhood of $200 million of fish bio mass being lost because of the algae