You may have eaten fish you did not order

If you eat seafood, even occasionally, there’s a good chance you’ve been served a fish species you didn’t order. A new months-long investigation by ocean advocacy group Oceana finds widespread and persistent fraud in the U.S. seafood industry. The organization tested 449 fish from more than 250 restaurants, seafood markets and grocery stores across the country and found that 21 percent of samples were mislabeled.