The invasive species silver carp is slowly advancing north along the Illinois River in central Illinois, and may become a factor in the Great Lakes in the future. (Marlin Levison/Minneapolis Star Tribune/MCT)
The invasive species silver carp is slowly advancing north along the Illinois River in central Illinois, and may become a factor in the Great Lakes in the future. (Marlin Levison/Minneapolis Star Tribune/MCT)
Solutions by The State News
