Mislabeled fish are showing up in lots of sushi. Study uses DNA markers to identify seafood mislabeling over a 4-year period at 26 restaurants and 3 high-end grocery stores in L.A. The results of this study raise new questions about the efficacy of efforts intended to stem seafood fraud.

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Mislabeled fish are showing up in lots of sushi. Study uses DNA markers to identify seafood mislabeling over a 4-year period at 26 restaurants and 3 high-end grocery stores in L.A. The results of this study raise new questions about the efficacy of efforts intended to stem seafood fraud.