Our regular surveillance and verification activities demonstrate that there's a very high level of compliance. Fish has been regulated in Canada for quite a long time, even before the safe food for Canadians regulations came into being in 2019, and is probably one of the most stringently regulated of all the foods out there.
While I can't speak for other departments, I can certainly reassure you that fish is highly verified by the CFIA for its food safety risks. We follow up on investigations as required, when that intelligence or a complaint is made to CFIA.