Home
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
Habitat
Islands
Land Use
Sustainable Development
Wetlands

Water
BeachCast
Conservation
Levels and Hydrology
Quality
Quantity and Use
Rivers and Lakes
Watersheds

Flora and Fauna
Biodiversity
Endangered Species
Forests
Invasive Species
Invasive Mapping
People
Plants
Wildlife

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

References
Agencies & Organizations
Environmental Justice
Laws and Policy
Sanctuaries and Reserves
Research
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
Officials say new Harpersfield dam needed
Star Beacon (7/14)
A 100-year-old dam in Harpersfield, Ohio, could be in line to be replaced by 2018 with a price tag of about $6 million. One concern is that the current dam and barrier are ineffective and expose 1,200 miles of high-quality stream habitation to sea lamprey infestation.

Scientists try to keep lampreys out of Fox River
Green Bay Press-Gazette (6/19)
Biological technicians with the U.S. Fish and Wildlife Service have been fishing for sea lampreys this week in the Fox River in Green Bay, Wis.

A never-ending $28 million battle against a Great Lakes parasite
Michigan Radio (6/18)
Sea lampreys devastated the Great Lakes fishery in the middle of the last century, and we’re still battling them today.

U.S. Fish and Wildlife Service conducting lamprey survey in Au Gres River this summer
The Arenac County Independent (6/12)
The U.S. Fish and Wildlife Service will follow up on sea lamprey treatments performed in 2014 during a June 16-25 survey in Michigan's Au Gres and East Au Gres rivers.

Crew searches for sea lamprey larvae in Detroit River
Detroit Free Press (6/6)
Crews from the U.S. Fish and Wildlife Service fanned out across the Detroit River, scouring the water for the presence of sea lamprey larvae, which burrow into river bottoms until they become parasites that use their suction-cup mouths to prey on Great Lakes fish.

Eel-like fish once threatened to ruin the multibillion-dollar Great Lakes fishing industry
The London Free Press (6/4)
Sea lamprey are a blood-sucking scourge that once threatened to ruin the multibillion-dollar fish industry in the Great Lakes.

Search GLIN for more news items about    

Back to Top


 
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.
 
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: September 5, 2015
Selected Photos: Copyright ©John and Ann Mahan
Contact Us | Search | Site Index
© 1993-2015