CLARION, Iowa (AP) — The Department of Natural Resources says a zebra mussel was recently found at Lake Cornelia in northern Iowa.
The DNR announced Friday that no other zebra mussel have been found in the lake, about 35 miles northeast of Fort Dodge. However, the mussels in their larval stage were found in a water sample.
DNR staff will continue to monitor the lake to determine if zebra mussels have become established in Lake Cornelia.
Zebra mussels, which are native to the Caspian Sea region of Asia, were first introduced into the Great Lakes in the 1980s from oceangoing ships’ ballast water. They have spread throughout lakes and rivers in the Midwest.
Large infestations of the mussels can interfere with food chains, kill native mussels and increase algae blooms.