As winter approaches, take a second look at that wild salmon entree you paid a premium for in a restaurant. It's likely mislabeled.

Oceana, an advocacy organization that's previously found fraud in retail marketing of other fish, shrimp and crab cakes, released findings Wednesday that diners were misled in restaurants when ordering salmon 67% of the time. The most common mislabeling was labeling farmed salmon as pricier, more sustainable wild salmon.

Oceana also tested salmon in grocery stores, finding it was dramatically less likely to be mislabeled — about 20% — and that large grocery stores were significantly more reliable with salmon sourcing than small markets.

Still, of the 82 salmon samples taken during the 2013-2014 winter in Chicago, Washington, D.C., New York and Virginia, 43% were mislabeled.

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