Admittedly, general hunting not fishing -- although of some very tenuous relevance (my first spearfishing trip of the year will be just down the road from a swanary with 200 migratory swans ! Also, if you get it, it may effect your ability to freedive). Short but it provides some interesting insights:
http://www.countryside-alliance.org/index.php?option=com_content&task=view&id=2501&Itemid=826
http://www.countryside-alliance.org/index.php?option=com_content&task=view&id=2501&Itemid=826