like us on Facebookfollow us on Twitter
News Calendar Great Links Site of the Month E-mail Lists Information Center About GLIN Search
The Great Lakes Environment Economy Education Maps and GIS Tourism
Tourism Maps and GIS Education Economy Environment Great Lakes
About the photos (İMahan, except for satellite photo)

Environment Topics

Air and Land
Air Quality
Coastal Management
Ecosystem Management
Land Use
Sustainable Development

Levels and Hydrology
Quantity and Use
Rivers and Lakes

Flora and Fauna
Endangered Species
Invasive Species
Invasive Mapping

Air Toxics
Areas of Concern
Human Health
Pollution Prevention
Soil Erosion
Toxic Contamination

Agencies & Organizations
Environmental Justice
Laws and Policy
Sanctuaries and Reserves
Weather and Climate

Legislative Tracking
Great Lakes Priorities
Legislative News

Lake Conditions

Lake Erie
Lake Huron
Lake Michigan
Lake Ontario
Lake Superior
Also: Lake St. Clair
  Sea Lamprey
in the Great Lakes Region

What's New | Overview | General Resources | Related Resources
Current invaders:
Crustaceans: Rusty Crayfish | Spiny Water Flea
Fish: Goby (Round) | Goby (Tubenose) | Rudd | 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
Sea lamprey control planned for Chippewa, Pine rivers
Midland Daily News (5/12)
U.S. Fish and Wildlife Service personnel will apply lampricides to the Chippewa and Pine River systems in Isabella and Midland counties, in Mich., to kill sea lamprey larvae burrowed in the stream bottom.

Great Lakes Science Waves
The latest edition of Great Lakes Science Waves, the newsletter of the U.S. Geological Survey - Great Lakes Science Center, is now available online. Topics include the Great Lakes Fishery Research Authorization Act of 2016, pheromone technology for sea lamprey control, and more.

Great Lakes fisheries expert: Time to forget salmon, go for native species
Michigan Radio (4/8)
The lake trout used to be the fish to catch in the Great Lakes. But by the 1950s, severe overfishing and an infestation of an eel-like, blood-sucking parasite called the sea lamprey had drastically reduced the number of lake trout and other fish.

Eel-ladder style traps: A new lamprey control tool
Under the Great Lakes Fishery Commission's sea lamprey control program, traditional funnel traps have been used for decades as a lamprey control method. With the recent development of new lamprey trapping technology, there is now a new tool to aid in lamprey control while protecting desirable fish.

Blood sucking sea lamprey on increase in Lake Superior
CBC News (3/3)
After years of holding the sea lamprey at a relatively low population with a chemical that kills larva, numbers in Superior have been on the rise.

Hoping to lead Great Lakes lampreys to demise by the nose
The New York Times (2/8)
For all the havoc that dozens of invasive species have wrought on the Great Lakes, those waters have never known a foe like the sea lamprey. The vampirelike parasites cost many millions each year in depleted fisheries and eradication efforts.

Search GLIN for more news items about    

Back to Top

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.
A lamprey mouthTwo lamprey on a living lake trout
Lamprey attached to troutDamage 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

Back to Top

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.

Back to Top

Related Resources
GLIN: Agencies and Organizations, Fauna
GLIN: Fish and Fisheries in the Great Lakes Region

Back to Top



News | Calendar | Great Links | SOTM | E-Lists | Info Center | About GLIN
The Great Lakes | Environment | Economy | Education | Maps and GIS | Tourism

Follow us on Facebook and Twitter.

Great Lakes Information Network
Updated: May 24, 2016
Selected Photos: Copyright ©John and Ann Mahan
Contact Us | Search | Site Index
© 1993-2015