Some of the pike minnows are tagged by the state and if turned in to a fish checker, are worth upto $500!! The only thing is you have to be registered each day (I think). and you can't just turn in the tag. Here is some info on it. Also, if you register, I think the fish are worth $3 a piece upto 50 fish and $4 a piece after that. Not sure if my numbers are correct, here is a site worth visiting.

2012 Northern Pikeminnow Sport Reward Fishery
www.pikeminnow.org/2012 Northern Pikeminnow Sport Reward Program. *The common name of the northern squawfish has been changed to northern pikeminnow by the American ...
Catch Data - Fishing Tips for Beginners - 2011 Northern Pikeminnow Sport ...