Ancient Salmon Cans Hint at Ocean Health
A 42-year baseline study of 178 cans of salmon from the Gulf of Alaska and Bristol Bay found anisakid worms—parasites that require marine mammals to reproduce—are more common in chum and pink salmon from 1979–2021, while levels in coho and sockeye remained steady, suggesting a relatively healthy marine ecosystem and signaling that policies protecting marine life and water quality may be supporting ocean health.
