Title: Asian carp found in St. Croix River - first silver carp
Headings: Invasive silver carp found for the first time in St. Croix River
Invasive silver carp found for the first time in St. Croix River
Content: At this time, it is hard to predict if these individuals would have moved (farther) upstream the St. Croix River, or back into the Mississippi River when water temperatures warm up in the spring.” The silver carp caught on the St. Croix measured 33 inches long and weighed 13 pounds. One bighead carp was also caught by the commercial angler, who was working with a DNR fisheries biologist, the DNR said. Once the ice clears, DNR workers and commercial anglers plan to survey for additional invasive carp near Prescott. The DNR will also sample at the Allen S. King Power Plant near Bayport, where bighead carp have been caught in the past. A commercial angler netting under the ice near the Bayport marina earlier this year did not catch any invasive carp. Farther upstream, the dam at Taylors Falls, Minn., is thought to be an adequate barrier to prevent the carp from penetrating deep into eastern Minnesota and northwest Wisconsin. Along the Mississippi, however, dams from St. Paul south have locks used for boats — a system that the carp could use as well. The Minnesota Aquatic Invasive Species Research Center at the University of Minnesota is testing carp deterrents in Mississippi locks and dams. Biologists have installed acoustic speakers at Lock 8 and modeled flows through the gates at dams 2 and 8.