I think domestication implies multigenerational changes in genetics and morphology to make the domesticated species more useful for the domesticating species.

I think domestication implies multigenerational changes in genetics and morphology to make the domesticated species more useful for the domesticating species. It doesn't seem that there's any evidence of that yet. Maybe if they keep at it for a while, and either the fish they hunt with branch off into a separate population or they do it so much that it affects the entire population?