Their main prey and source of food is fished using drift nets in the southern parts of the Baltic, but in creasing numbers of natural salmon on their way to breed are finding their way into the same nets, and now natural salmon only account for about 10 % of the total salmon population in the Baltic Sea.
Συνεπώς, η άποψη των Φιλε­λευθέρων είναι ότι θα πρέπει οι οδηγίες να είναι απλές και η παρακολούθηση εύκολη, οικονομική και αποτελεσματική.