Lake Hortonia 2008 - Eagle Lake Property Owner's Inc.

Sunnyvale, CA) differential global positioning system (DGPS) was used to navigate to each
point for the survey observation. Point intercept plant frequencies were surveyed between
September 2 and September 4, 2008 for both lakes. Data presented in the summaries are on both
a whole-lake basis and adjusted for the littoral zone.
Wetland Line Transects. To address concerns with potential impacts of herbicide treatments on
wetland communities, one site at each lake was selected to correspond with surveys conducted in
1999 through 2001 by the US Army Corp of Engineers (Getsinger et al. 2002). In Lake
Hortonia, a 200-m transect was established, with the endpoints marked by DGPS. In Burr Pond,
an 80-m transect was established with physical control of location. For each transect, the line
was divided into 1-m segments. Plant species occurring in a 0.1 m 2 quadrat placed at each 1-m
segment were recorded (Madsen 1999). Since these transects were in dense Nymphaea-Nuphar
communities, both transects were observed with the use of a canoe.
Renovate Treatment – 2008
Summary provided by Gerald Smith, Aquatic Control Technology, Inc., Cambridge, MA
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