Grocery stores are more reliable than sushi restaurants in labeling salmon properly, Seattle study finds
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In a study of salmon samples from Seattle, Washington, grocery stores and sushi restaurants, DNA analysis revealed that 18% were mislabeled. Tracie Delgado and colleagues at Seattle Pacific University, WA, U.S., present these findings in the open-access journal PLOS ONE on November 6, 2024.
Washington State is one of the top suppliers of wild salmon eaten in the United States. The price of salmon depends on the species and whether it is farmed or wild caught. Prior studies have revealed frequent mislabeling of salmon in Washington markets and restaurants. In 2013, the state made it illegal to mislabel salmon, citing negative effects for customers, fishers, distributors, vendors, and ecosystems.
To help illuminate the impact of that legislation, Delgado and colleagues collected and analyzed salmon samples from 67 grocery stores and 52 sushi restaurants across Seattle from fall of 2022 through fall of 2023.
