What's New State senator’s bill aims to reel in ‘rotten invasive’ sea lamprey LaCrosse Tribune (3/28) A bill circulated by a Wisconsin lawmaker aims to control sea lamprey — eel-like parasites that look like monsters, attack trout and other fish, and could suck the lifeblood out of the Great Lakes ecosystem.
Sea lamprey public enemy No. 1 among invasive species Northumberland Today (2/25) Of all the invasive species threatening the Great Lakes, public enemy number one remains the sea lamprey, as no other species has caused more damage to the lakes and the lakes’ tributaries.
Ohio attempts to restore trout species to Lake Erie WEWS-TV - Cleveland, OH (1/3) The Ohio Department of Natural Resources has announced a pilot restocking plan to return lake trout, a species of concern due to sea lamprey predation and pollution, to Lake Erie.
Trout could restore piece of Erie history The Toledo Blade (11/16) Ohio recently received about 123,000 lake trout fingerlings from the Allegheny National Fish Hatchery, near Jamestown, Penn. Lake trout are native to Lake Erie and, historically, they were the dominant predator in the lake’s deeper and colder eastern end.
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.
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.