Misleading Labels Hide Endangered Shark Meat in U.S. Markets

According to a recent investigation, shark meat sold in certain supermarkets, seafood markets, and online platforms in the United States often comes from species that are endangered, although consumers might not be aware of this due to the way the meat is labeled.

Published research has unveiled that meat from sharks facing extinction threats is being sold under vague or inaccurate labels. This study utilized DNA barcoding to analyze 29 shark meat products, which included 19 fillets obtained from various markets across different states such as North Carolina and Florida, and 10 types of jerky bought online.

Researchers identified critically endangered species like the great hammerhead and scalloped hammerhead among the samples, being sold as simple 'shark meat'. Savannah J. Ryburn, a researcher from the University of North Carolina at Chapel Hill, reported that almost all samples (93%) bore ambiguous 'shark' labels, while one out of two specifically labeled items was inaccurately described.

A significant portion, approximately 31%, of the samples contained meat from sharks that are either endangered or critically endangered, including the great hammerhead, scalloped hammerhead, tope, and shortfin mako species. Other samples included species like the spinner, lemon, and common thresher sharks, each facing various levels of threat.

The mislabeling poses not only a threat to the sharks but also possible health risks for consumers. Sharks like the scalloped hammerhead, great hammerhead, and dusky smooth-hound possess high mercury levels, which could harm public health.

The research stresses the need for sellers in the U.S. to offer precise species information on shark products. Ryburn suggests that if identifiable names aren't provided, consumers should avoid purchasing such products to mitigate the risks involved.

Sara Moniuszko, a health and lifestyle journalist for CBSNews.com, has a background in wellness reporting, previously working with USA Today, and now covers breaking news for CBS News' HealthWatch.