April 19, 2023 — It’s an unpleasant fact for everyone who eats fish in Alaska: Mercury is in the food chain, and it’s particularly prevalent in seafood.
And while the amount of mercury found in Alaska seafood remains far below dangerous levels, a pair of researchers want to keep an eye on it long-term. The best way to do this, they’ve found, is not by testing fish coming over the docks, but by testing human hair. They recently visited Sitka to report the findings of a pilot study begun five years ago.
Todd O’Hara is a veterinarian, but don’t bring him your cat to be spayed.
“I’m a veterinarian who has a PhD in toxicology,” he said. “I’ve never had any desire to be a clinical veterinarian. I’ve applied my veterinary degree to wildlife and fish research in toxicology and environmental agents of disease. So that’s how I got into this business.”
O’Hara is a researcher with Texas A&M and the University of Alaska Fairbanks. A lot of pathologists who study human disease are veterinarians, which is not surprising when you consider how closely humans and animals are linked on this planet.