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 (©Mahan, 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
Lampreys researched in Cheboygan
The Daily Reporter (5/19)
Teams from the United States Fish and Wildlife Service involved in sea lamprey research have been working rivers in Northern Michigan this spring. The teams spent the past week at the Cheboygan River dam.

Online tool measures how dam removal affects lamprey
Detroit Free Press (5/2)
The online tool was developed by the Great Lakes Fishery Commission and the Great Lakes Commission and provides information that can help policymakers, researchers and others to see how removing particular barriers or adding new ones would affect lamprey control.

Developing the next generation of lampricides
The Great Lakes Fishery Commission convened a first-of-its-kind workshop recently to explore the question: "Are sea lampreys becoming less susceptible to the lampricides that serve as the primary method of control for this destructive invader?"

COMMENTARY:Why should we kill sea lampreys? Because we love fish.
MLive (12/20)
Two Great Lakes captains make the case for continued support of sea lamprey control measures.

Invasive fish predator leaving mark on Georgian Bay habitat
CTV - Barrie, ON (8/25)
In Ontario, anglers taking part in this year’s Salmon Spectacular in the Georgian Bay are not only finding a lot of fish, but also a dangerous fish predator called the sea lamprey.

Lamprey steal show at derby
Owen Sound Sun Times (8/24)
During the second day of the 27th annual Owen Sound Salmon Spectacular, in Owen Sound, Ontario crowds gathered around a tank of live sea lamprey brought to the derby this year by the Great Lakes Fishery Commission.

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.

Visit us at labs.glin.net
Great Lakes Information Network
Updated: May 30, 2015
Maintained by: Christine Manninen, manninen@glc.org
Selected Photos: Copyright ©John and Ann Mahan
Contact Us | Search | Site Index
© 1993-2015