Recent technology that identifies varieties of fish by their gene sequences has shown that 20-25% of seafood products are mislabeled, usually with something cheap being labeled as something more expensive.
Dana Miller, a doctoral student who worked with Dr. Mariani in Dublin studying the mislabeling of cod, the most popular fish in Ireland, said, “we expected with all the policies and legislation and inspections, the numbers would be pretty low.” But 25% of samples of fresh cod and haddock and over 80% of the smoked products, were in fact something else. Irish cod stocks are overfished.
If you can’t trust the name of the fish on the package, how can you trust anything else about what the label says? The group Cleanfish is experimenting with an electronic tagging system through which each fisherman or processor would enter his code onto a tag on each fish, making its journey from the sea to the plate fully transparent.