The cormorant is trying to survive and has been forced inland by the destruction of fish stocks in the seas. Any cull will simply put the future of this species under further threat and this should outweigh any demands from anglers who are only concerned about their own pleasure. The waters which suffer most from cormorant predation are overstocked fisheries where the fish would only have been caught by anglers instead. The reports also notes that there is no direct link between the size of the cormorant population and the fish stock loss as the situation is far too complicated for such simple generalizations. Where culls have already taken place, the cormorants have returned within two to six weeks, making the cull ineffective.
More emphasis needs to be placed on finding an alternative, sustainable solution.
As opposed to giving into the short term demands of fishermen seeking scapegoats. That the real problem lies in the destructive over-fishing of the sea by commercial boats, and that action needs to be taken to rectify the ecological disaster being faced by the worlds oceans. Feeding Behaviour of Fish-Eating Birds in Great Britain.