Fishy fraud in NYC.

Two teens discovered via DNA sampling that up to 1/4 of fish in NYC stores and restaurants are cheaper species than as labeled.

From Reuters:

Up to a quarter of fish in stores and restaurants in New York City was mislabeled as a more expensive variety, according to samples collected by two U.S. teenagers and tested with modern genetic identification methods.

In the worst cases, two samples of filleted fish sold as red snapper, caught mostly off the southeast United States and in the Caribbean, were instead the endangered Acadian redfish from the North Atlantic, according to the tests, revealed on Friday.

[...] The two classmates from New York's Trinity school collected and sent off 60 fish samples to the University of Guelph in Canada. Of 56 samples that could be identified by a four-year-old DNA identification technique, 14 were mislabeled.

In all cases, the fish was labeled as a more costly type, apparently ruling out simple chance.