The Saranac River delta was treated with granular bayluscide while the Great Chazy River, Mount Hope Brook, and the Winooski River were each treated with TFM.

The 2004 treatments controlled lamprey populations in four areas of substantial production. Over 800,000 ammocoetes were eliminated this year and treatments will prevent the potential addition of many parasites to the lake over the next four years. The results of treatment will not be seen until the summer or fall of 2005, at which time we expect to see a reduction in lamprey wounds on host species.

Continued sea lamprey control on these four systems, in conjunction with control in other areas, will enhance efforts to restore salmon and lake trout and improve these economically important fisheries.

Contact Dr. Bradley Young, Lake Champlain (Vt.) Fish and Wildlife Resources Office, for additional information.