Brazilian study identifies parasites in 96% of sampled skipjack tuna

The short version

• A study by researchers at the Federal University of Santa Catarina found parasite infections in 96 percent of a 53-fish sample of skipjack tuna caught off southern Brazil.
• Parasites were concentrated primarily in the intestines, muscle tissue, and stomach, spanning the Trypanorhyncha and Anisakis genera.
• The authors recommend rapid gutting and processing to stop larvae from migrating into edible flesh, while noting that standard cooking and canning destroy the parasites.

Key facts

• Researchers at the Federal University of Santa Catarina examined 53 locally caught skipjack tuna in southern Brazil and found parasites in 96% of the fish.[Hacker News]
• The research team documented over 1,600 worms across the sample, with parasites present in multiple organs including the digestive tract and muscle tissue, while kidneys and hearts remained free of infection.[Hacker News]
• The identified parasites belong to the Trypanorhyncha and Anisakis genera.[Hacker News]
• The study was published as a brief communication in the journal Ocean and Coastal Research.[Hacker News]
• Cooking and canning kill the parasites, rendering them harmless, whereas consuming raw or undercooked infected fish can cause gastrointestinal issues.[Hacker News]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.

• Scientists Find Worms in Almost Every Fish in a Tuna Haul – 96% Were InfectedHacker News