Fishing License Sales Continue to Plummet - is it due to AIS Impacts?

New research from the Minnesota Aquatic Invasive Species Research Center has found that zebra mussels decrease the size of walleye  14%, spiny water flea by 12%, and the combination of the two by 25%. Is decrease in fishery health a driver in the tumbling numbers of fishing licenses sold in Minnesota, particularly for non-residents and younger anglers?