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Bob Zink: Talk about opening a can of worms… in salmon

This image shows a coiled anisakid from the study, “Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species,” by Natalie Mastick and colleagues (2024). The researchers actually used canned fish in the study. (Photo courtesy of Ecology and Evolution)

No, this article is not about crossbows, walleyes in Lake Mille Lacs, or deer and wolves in northern Minnesota. It’s literally about worms in cans – of salmon, that is.
My wife and I once were eating some cod, and I noticed a white, filamentous thread that I figured was some kind of connective tissue. After eating a couple of these, I looked more closely and realized the white “threads” were nematodes, a parasitic worm.

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