Skip to content
Tech News
← Back to articles

Brazilian study finds parasitic worms in 96% of skipjack tuna sampled

read original get ThermoPro TP19H Digital Meat Thermometer → more articles
GoKawiil Brief

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.

Why It Matters

GoKawiil's interpretation of the reporting above, not reported fact.

Skipjack tuna is a commercially important species widely used in sashimi and canned products, so high parasite loads in muscle tissue raise food-safety questions even though the sample size was small and limited to one location and time. The authors argue the results justify stricter sanitary inspection and immediate evisceration of catches to stop larvae migrating from internal organs into the flesh people eat.

Key Takeaways
Worth a Look

ThermoPro TP19H Digital Meat Thermometer — Since parasites in fish are killed by proper cooking, an instant-read probe takes the guesswork out of getting tuna steaks to a safe internal temperature. The ThermoPro TP19H has a thin probe and backlit display, so you can check doneness quickly at the grill or stove.

See ThermoPro TP19H Digital Meat Thermometer on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.

Source: sciencealert.com — Carly Cassella, 2026-09-04

Published there as: “Scientists Find Worms in Almost Every Fish in a Tuna Haul – 96% Were Infected”

Read the original report → The summary and analysis above are GoKawiil's own, written from reporting by the source above. Facts and quotes belong to the original publisher.