CHEROKEE, Iowa (AP) — Authorities say floodwaters from the swollen Little Sioux River have carried an invasive fish into a northwest Iowa city lake. The silver carp from Asia — also known as jumping carp — have landed in Spring Lake Park in Cherokee, thanks to a broken overflow line. City conservationist Nick Livermore told station KCAU that, as filter feeders, the carp “can really hurt the bottom of a food chain in a water system.”

State authorities say that when the fish are startled by boat motors, they can jump 10 feet out of the water, striking and injuring boaters, anglers and skiers.