Many carp migrate in early spring from lakes to marshes to spawn. We use low-voltage electric barriers to block these migrating carp and direct them into traps for removal. The electric barriers we use are portable, can be easily modified to fit specific study sites and installed in only a few days without extensive site engineering. Field tests conducted in 2018 and 2019 in Rice Creek showed that the barriers were nearly 100% effective and easy to maintain. The electric field they produce is mild and does not cause fish mortality. It is designed to guide the fish into traps rather than paralyze them. These types of barriers can also be used to prevent the out-migration of juvenile carp from marshes into lakes. Learn more about these systems here from the Board of Water and Soil Resources and here from the Minnesota Aquatic Invasive Species Research Center.