The Canadian Food Inspection Agency (CFIA) has published a report on fish species substitution surveillance.
Fish filets in fresh, frozen, dried, or salted format were collected to determine if the common name was accurately represented in relation to the species of fish. CFIA inspectors collected fish samples at domestic processors, importers and retail establishments (fish packaged at retail). The Ministère de l'Agriculture, Pêcheries et l'Alimentation du Québec (MAPAQ) collected retail samples in Québec. From April 1, 2019 to March 31, 2020, 362 samples were collected from across Canada.
The samples were tested at a CFIA laboratory using DNA-based fish species identification testing. This method compares DNA of samples against DNA barcode sequences for known fish species contained in a database.
The results showed that 92% of the samples tested were assessed as being satisfactory.
Read full report.