One of the more useful roles on any Committee is to be the Group coordinator.
It puts you in charge of bringing about an agreed Party line on issues.
Along with the national Chairs and Vice-Chairs, these are the point people, who have a great deal of influence on what comes out of the Committee.
The Fisheries Committee Coordinators
Update
A useful resource of the Fisheries Committee is the Trawler Newsletter which you can access here.