Pleasant lake in Elkins NH and Lake Sunapee both have Rock Bass tournaments ever year to try and get rid of these from the lakes. There is quite a bounty on them over here and you can get money or a credit of some kind for every fish you bring in dead.
Thanks for the picture, I have never seen one.
http://sunapeenews.com/2009/07/29/la...s-derby-aug-8/
http://plpa.net/activities/events/fishingderby.htm
Both events have passed for this year but if you are interested the sites update regularly for next year.