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Environmentalists remove aquatic weeds from Emerald Bay

Environmentalists are declaring victory after a population-growth control technique successfully eradicated most, if not all, remnants of an invasive aquatic plant from part of the floor of Emerald Bay near Swim Beach. Using a similar technique to kill invasive Asian clams, a partnership of local environmental agencies installed large swathes of bottom barriers to curtail the growth of Eurasian watermilfoil in Lake Tahoe.

In June, a partnership including Tahoe Resource Conservation District, California Department of Parks and Recreation and the Tahoe Regional Planning Agency placed more than 8,500 square feet of bottom barriers, according to Kim Boyd, Invasive Species manager at the conservation district.

Project coordinators supplemented the barriers with divers who removed the weeds outside of the barriers' range by hand. The project was funded by two separate grants — one in 2006 and one in 2008 — provided by the Bureau of Reclamation, a water management agency that concentrates on water issues in the American West. The weed-killing technique has been and will continue to be used to control curly-leaf pondweed, another rapidly spreading aquatic invasive plant found in Lake Tahoe