Aquatic Plant Survey

Freshwater Scientific Services, LLC ( conducted an aquatic plant survey of East Battle Lake during the summer of 2012.  

Summary of Findings  
  1. We found no submersed aquatic invasive plants in the lake in 2012 (no curlyleaf pondweed, Eurasian watermilfoil, or flowering rush).  
  2. Invasive purple loosestrife was found growing on the shore of East Battle Lake in a few localized areas, but we found no large stands of loosestrife in 2012.  
  3. East Battle Lake currently supports an abundant and diverse plant community (26 species; 19 submersed, 3 floating-leaf, and 4 emergent) with most areas shallower than 20 feet supporting plant growth. The plant community was dominated by muskgrass (Chara spp.; ~ 80% occurrence), which formed large, dense beds throughout much of the lake. In addition, several other taxa were found at more than 20% of the sampled locations (≤15 ft), including common bladderwort, coontail, northern watermilfoil, and illinois pondweed.   
  4. Recreational impairment due to plant growth was generally limited to the large, shallow bay on the far northeastern shore of the lake. Plants throughout most of this area grew to within 1 foot of the surface and formed an extensive area of dense surface growth that impaired boating and water recreation. Despite the observed areas of dense plant growth, 90 to 95% of the lake experienced no impairment of recreation or navigation due to plants.

The complete survey report is attached.
Craig Lebakken,
May 29, 2013, 9:21 AM