finfish

The result: one in five finfish, and one in five shellfish, were not as advertised.

Purchase whole, head-on finfish whenever possible, as they are harder to mislabel.

To investigate this issue in Canada, our recent research paper examined mislabelling and ambiguous market names in invertebrate and finfish products — fish with fins, like cod, salmon and tuna — in Calgary between 2014 and 2020.

University students sampled 347 finfish product and 109 shellfish — including shrimp, octopus and oysters — from Calgary restaurants and grocery stores.

This was the first study of its kind in Canada to compare shellfish to finfish.