the seagrass and that is con assumed by sealife. it is deadly for manatees and fish. also poisonous for humans who breathe it in or consume contaminated shellfish. florida fish and wild live bile gift responding to floating manatees, half dead or already dead. at the state s pathology laboratoritory they have performed on a steady stream of autopsies. killer of 250 manatees so far this year is the red tide. when the cell blooms to large amounts it release as chemical in the water, toxin in the water. manatees take that either through inhaling some of it at the surface of the water or when they ingest the toxin off the seagrass. it gets into the system and pretty much paralyzes them to the point where they drown. reporter: pretty sad. allowerry zoo in tampa, they operate a manatee hospital a dozen manatees have been evidence is a. typically they recover