Brazilian study finds parasitic worms in 96% of skipjack tuna sampled
Researchers at the Federal University of Santa Catarina examined 53 skipjack tuna caught off southern Brazil and found more than 1,600 worms across the fish, with 96% carrying at least one parasite. The intestines were most heavily infested, followed by the edible muscle tissue and the stomach, while only the heart and kidneys were consistently parasite-free. The team identified two dominant parasite genera, Trypanorhyncha and Anisakis, and published the findings in Ocean and Coastal Research.