Yes.
Of the nearly 400 samples collected from restaurants and grocery stores, and a small number from markets, 44% were mislabelled.
A common one was snapper, or “red snapper” on the label, but it was actually tilapia. We collected 44 samples of snapper, with 12 of red snapper, and none of those were in the snapper family. It's worth keeping in mind that “snapper” is actually a generic name that can apply to over 200 species, and none of these 44 samples that we collected were any of those 200 species. That was one of the common mislabelling incidents we came across.
There are also examples of Pacific salmon, and any of those five main species of Pacific salmon were actually Atlantic salmon, which is a big issue. When we were out in Atlantic Canada, we found “Atlantic cod” on the label, and it was actually Pacific cod. All of these really iconic species in the different areas around the country were mislabelled.
One slightly unpleasant example that we've talked about in the past is where white tuna was almost always escolar, which is indigestible. I'll leave it at that.