HomeMy WebLinkAbout2025 Nancy Lake POI Survey Report2025 Nancy Lake (DOW: 27067700, Hennepin County)
Aquatic Vegetation Point Intercept Survey Report
4/18/2025
An aquatic vegetation point intercept survey was completed in Nancy Lake on 4/18/2025 for the
City of Edina. One species of vegetation was sampled during the survey:
• Curlyleaf pondweed
The point intercept survey consisted of 22 points. A meandering delineation was also performed to
detect any additional curlyleaf pondweed not in the proximity of a site. At each site depth was
recorded and vegetation was sampled with a double-sided rake. For every species sampled, an
abundance rating was assigned based on how much was sampled on the rake. The ratings are as
follows:
0. Plant species absent
1. Plant species covers <25% of the rake
2. Plant species covers 25-75% of the rake
3. Plant species covers >75% of the rake
This rating scale was taken out of the Minnesota Department of Natural Resources Guidance for
Delineating Aquatic Plants for Management.
Curlyleaf pondweed was not abundant in Nancy Lake (See figure 1). It was only found at 2 sites
(frequency of occurrence: 10%) with an average rake abundance of 1 at sites where it was
collected.
Figure 1a: 2025 Nancy Lake curlyleaf pondweed distribution and abundance.
Figure 2b: Nancy Lake CLP distribution and abundance