That is a difficult question.
In our experience, more or less fixed vessel quotas giving the vessels the possibility to plan their activities during the year is an important management tool to avoid Olympic fisheries where you are only after quantity and not after quality. At the end of the day, the important thing is how much money you are paid for your catch, not how many tonnes you have caught. A regulation that gives the individual fishermen and the individual vessels the possibility of planning their activity according to the seasons where they fish is important.