HomeMy WebLinkAbout2026 Mirror Lake POI Survey Report2026 Mirror Lake (DOW: 27005500, Hennepin County)
Aquatic Vegetation Point Intercept Survey Report
4/26/2026
An aquatic vegetation point intercept survey was completed in Mirror Lake on 4/26/2026 for the City
of Edina. The point intercept survey consisted of 95 points. 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 (Figure 1) was sampled at 5 sites throughout the lake, mainly in the northwest
bay. Curlyleaf was distribution and abundance is down from previous years. Only one other species
was sampled, coontail. Coontail (Figure 2) was sampled at 6 sites.
Species Frequency of Occurrence (%) Average Rake Abundance
Curlyleaf pondweed 5 1.2
Coontail 6 1.6
Figure 1: 2026 Mirror Lake curlyleaf pondweed distribution and abundance
Figure 2: 2026 Mirror Lake coontail distribution and abundance