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Sea Lamprey in the Great Lakes Region What's New | Overview | General Resources | Related Resources Current invaders:
Crustaceans: Rusty Crayfish | Spiny Water FleaFish: Goby (Round) | Ruffe | Sea Lamprey | White Perch Mollusks: Quagga Mussel | Zebra Mussel Plants: Curly-leaf Pondweed | Eurasian Watermilfoil | Phragmites (non-native) | Purple Loosestrife Viruses: Viral Hemorrhagic Septicemia Virus (VHSv) Potential invaders:
Fish: Asian Carp [Invasive species home page] 
What's New 10 invasive species threatening Canadian habitats CBC News (2/23) From parasites to crabs and living slime affectionately dubbed "rock snot," invasive species can wreak havoc in a new habitat. Take a look at 10 non-native plants and animals that are disrupting ecosystems in Canada. Good, bad news on lampreys Detroit Free Press (2/9) While lamprey numbers have been reduced by 90% in the other Great Lakes, they remain high in Lake Erie. Conservation Authority seeks to renew St. Marys River heritage status The Sault Star (1/20) A decade ago, the St. Marys River was designated a Canadian Heritage River. To maintain the designation, the Sault St. Marie Conservation Authority must prove that the river still meets specific integrity guidelines. Removing Newburg dam would let river flow free Milwaukee Journal Sentinel (12/3) Ozaukee County, Wisc., has offered to spend up to $650,000 in federal grant money to remove the dam on the Milwaukee River in 2012 and restore the natural riverbed. Lamprey repellent may help control Great Lakes pest Milwaukee Journal Sentinel (10/16) Great Lakes biologists might have found a new weapon in the never-ending fight to control the devastating sea lamprey - the stench of death itself. MSU sea lamprey research will aid in battle against Great Lakes invader Lansing State Journal (9/23) Scientists at Michigan State University have discovered new ways to keep blood-sucking lampreys from decimating the populations of trout, salmon, and other large fish in the Great Lakes and destroying the $7 billion industry they support.
Overview Sea lamprey (Petromyzon marinus) are predaceous, eel-like fish native to the coastal regions of both sides of the Atlantic Ocean. They entered the Great Lakes through the Welland Canal about 1921. They contributed greatly to the decline of whitefish and lake trout in the Great Lakes. Since 1956, the governments of the United States and Canada, working jointly through the Great Lakes Fishery Commission, have implemented a successful sea lamprey control program. This series of pictures shows a close-up of a lamprey's mouth, lampreys attached to a lake trout, and the damage resulting from a lamprey attack.    
Photo Credit: 1 and 4: Great Lakes Sea Grant Network Exotic Species Graphics Library; 2: U.S. Fish and Wildlife Service; 3: Great Lakes Fishery Commission. For more photos, see the Sea Lamprey Fishtank. References: A Field Guide to Aquatic Exotic Plants and Animals, University of Minnesota Sea Grant Program
General Resources Lampricide Reduction: A High Priority in the Sea Lamprey Battle (PDF - page 4) From Ohio Sea Grant's Twine Line The Great Lakes Fishery Commission and its agents decided several years ago to reduce lampricide use by 50 percent by the year 2001, for three main reasons: commitment to healthy ecosystems, economics, and the need to integrate the pest management program. The commission is more than half way to reaching this reduction goal. Petromyzon marinus U.S. Geological Survey (USGS) Nonindigenous occurrences, means of introduction, and impact of the Sea Lamprey. Sea Lamprey University of Wisconsin Sea Grant Institute This fact sheet gives a brief description of the sea lamprey. Sea Lamprey (Petromyzon marinus) Sea Grant Nonindigenous Species Site (SGNIS) Includes scientifically reviewed articles as well as images from Sea Grant researchers. Sea Lamprey Control Program Great Lakes Fishery Commission The GLFC's program of integrated sea lamprey management includes lampricide control, construction of barriers in streams to deny sea lampreys' entry, and an experimental program to reduce spawning success by releasing sterilized-male sea lampreys. The program has successfully allowed the re-emergence of the largest freshwater fishery in the world. Sea Lamprey Factsheet U.S. Geological Survey (USGS), Great Lakes Science Center Outlines the impacts of Sea Lamprey populations in the Great Lakes, research and treatments to protect native fish populations.
Related Resources GLIN: Agencies and Organizations, Fauna GLIN: Fish and Fisheries in the Great Lakes Region
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