Every time a fishery is weakened by DFO's interventions, necessary or not, in order to have it bend under foreign pressure, business owners may be inclined to throw in the towel. It can also happen, as is the case now, that crews of certain fisheries flee the boats because the catches aren't there and, consequently, neither are the revenues.
As soon as a fishery is weakened in some way, there is a risk that, in some communities, some of the expertise will leave those areas one at a time.