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Sea Lamprey
March 19, 2001 WPTZ NEWS CHANNEL 5
Barrier Dams to Control Lamprey
Barrier dams are an alternative to chemical control of sea lamprey. In the Lake Champlain Basin, 2 barrier dams received funding through the Lake Champlain Basin Program. On the Great Chazy River in New York, $130,000 was provided to make the existing waterworks dam inpenetrable to sea lamprey. This effort alleviated the need for TFM chemical treatment on 14 miles of the river. In Vermont, an old barrier dam was repaired on Lewis Creek.

The New York State Bond Act has also supported sea lamprey control by providing $226,500 to build a barrier dam on the Little AuSable River. The Little AuSable is one of the largest producers of sea lamprey in the Basin. The dam, which will be constructed by NYSDEC's Bureau of Fisheries, will also incorporate a jump pool to allow desirable species to migrate upstream.

About the Sea Lamprey DSEIS
The Draft Supplemental Environmental Impact Statement (DSEIS) to continue sea lamprey control on Lake Champlain is now available for public comment. The DSEIS was prepared by the US Fish and Wildlife Service, in cooperation with the VT Dept. of Fish and Wildlife and the NYS Dept. of Environmental Conservation, in accordance with the National Environmental Policy Act of 1969.

How to Comment
Copies of the DSEIS can be obtained from the USFWS Lake Champlain Office by calling 802/872-0629. Two public hearings will be held for public comment:

March 28, 2001 - 7:00pm-9:00pm
Willsboro Central School Cafeteria
2 School St
Willsboro, NY 12996

April 4, 2001 - 7:00pm-9:00pm
South Burlington High School
550 Dorset St.
S. Burlington, VT 05403

If you cannot attend a public hearing, written comments may be mailed, faxed or emailed by April 30, 2001 to:

Mr. Dave Tilton, Project Leader
USFWS Lake Champlain Office
11 Lincoln St.
Essex Jct, VT 05452
Phone: 802/872-0629 Fax: 802/872-9704
Email:dave_tilton@fws.gov

All comments received will become part of the administrative record and be made available to the public.

What Are Sea Lamprey?
Lamprey on a fish Sea lamprey, Petromyzon marinus, are parasitic fish that are believed to have entered Lake Champlain via the Champlain Canal. Adult sea lamprey spawn in several of the Lake's tributaries, leaving nonparasitic larvae (ammocoetes) to remain in stream sediments for several years until they transform into the adult form, at which point they migrate to the Lake to prey on fish. Attacks by adult sea lamprey on landlocked Atlantic salmon, lake trout and other fish species have limited the full development of a Lake Champlain fishery, and restricted recreational and associated economic opportunities.

About the Control Program
An eight-year experimental control program to reduce sea lamprey was completed in 1998. It was a combined effort by the New York State Department of Environmental Conservation, the Vermont Fish and Wildlife and the US Fish and Wildlife Service Lake Champlain Ecosystem Team. Control strategies included the use of the lampricides 3-trifluoromethyl-4-nitrophenol (TFM) in 13 streams and Bayer 73 on five tributary deltas, as well as barrier dams (see side column). Research suggests that the control effort was quite successful. For example, since the control program began, sea lamprey nest counts have shown a downward trend and total lake trout and salmon catch has increased.

More About Sea Lamprey

Sea Lamprey Factsheet - Wisconsin Sea Grant

Sea Lamprey Factsheet - USGS

Sea Lamprey Images

Sea Lamprey Recipes (No Kidding!)

New York State Department of Environmental Conservation

Vermont Fish and Wildlife

US Fish and Wildlife Service Lake Champlain Ecosystem Team


Photos on this page courtesy of the Great Lakes Fisheries Commission.


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Last Updated: March 19, 2001


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