Fishery Commission battles sea lamprey invasion in Great Lakes

Brook lamprey (Lampetra planeri) spawning in a small tributary of Loch Ness today. These are the smallest of the three British lamprey species at approximately 130 to 150mm in length). Unlikely the larger river and sea lamprey, they spend their entire lifecycle in freshwater. The larvae of brook lamprey live in burrows in areas of sand or mud. They feed by filtering organic matter from the water. As they mature they stop feeding and migrate to areas of suitably sized clean gravel. A number of ma

The chestnut lamprey (Ichthyomyzon castaneus) is a native, jawless fish found in rivers across Michigan and the central U.S. Often confused with invasive sea lampreys, chestnut lampreys play a positive role in river ecosystems. Key Points: • Larvae live in streambeds for years, filtering water and improving quality. • Adults are temporary parasites, feeding on fish but rarely killing them. • After spawning, they die and decompose, returning nutrients to the stream. • Serve as food for fish, bird

Sea Lamprey Control in the Lake Champlain Basin | U.S. Fish & Wildlife Service

UPDATE: Sea lamprey control planned for Great Lakes tributaries

GLFC says sea lamprey control program is fully staffed and back on track