Scientists Find Parasites in Almost Every Fish From a Recent Tuna Haul – 96% Were Infected

Anisakid parasite in chum salmon. (Togabi/Wikimedia Commons) A fatty tuna that is often used for sashimi or canning may be swimming with parasites more often than not. When scientists at the Federal University of Santa Catarina in southern Brazil analyzed 53 locally caught fish, they found nearly all were contaminated by worms. According to a brief communication published in Ocean and Coastal Research, the research team counted more than 1,600 little worms in total. Using powerful microscopy tools as aids, they found that the kidney and heart were the only organs free of parasites in every fish. Otherwise, the worms...