ENVIRONMENT
03/18/2010 05:12 am ET Updated May 25, 2011

Sushi DNA Tests Reveal Fish Fraud

[A] team of researchers from Columbia University and the American Museum of Natural History ordered tuna from 31 sushi restaurants and then used genetic tests to determine the species of fishes in those dishes. More than half of those eateries misrepresented, or couldn't clarify the type of fish they were mongering. Several were selling endangered southern bluefin tuna.

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