Aquatic Invasive Species (AIS)

July 23 AIS Monitoring Update

Lake Independence has know infestations of Eurasian watermilfoil, Curly-leaf Pondweed, and Zebra Mussels, all were found during our survey. Newest to our AIS list is Yellow Iris which we found last year for the first time. This year a large patch was noted by Kristen Blanck when she was kayaking near the Lindgren lane channel. Good news is we did not find any Starry Stonewart which has made appearances in other area lakes.

A big thanks to our hosts, Pat and Dick Wulff, for serving a delicious brats and sauerkraut lunch before we headed out on the water!

Craig Olson and Kristen Blanck pull in the first rake of aquatic plants to be surveyed.

A pitstop at the home of Bob and Annie Ibler on Lindgren Lane to look at the many zebra mussels they have found on their shoreline, mostly attached to these native clams.

Dick Wulff was our captain for the day. LICA members Craig Olson, Kristen Blanck, Pat Wulff and Barbara Zadeh went out on the water with limnologist Carolyn Dindorf from Fortin Consulting. 

Yellow Iris may be pretty but they are an invasive plant that chokes out native plants. Look for an update coming soon with information about this newest invasive.

2019 Survey Results:
Eurasian milfoil
Curly-leaf pondweed

    In the summer of 2019, LICA commissioned James Johnson of Freshwater Scientific Services to survey Lake Independence and identify the areas of the lake with the highest concentrations of Eurasian milfoil and curlyleaf pondweed. The curlyleaf pondweed survey was performed in late spring when the growth is peaking; the milfoil survey took place in the summer when the concentrations of milfoil are at their maximum. The data was collected by following a zig-zag course in the shallow areas all around the lakeshore. GPS readings were taken to pinpoint the exact location of each measurement.

    The purpose of the survey was to identify those areas where treatment would have maximum beneficial impact. But Johnson recommended to the Board that before we take any action, we develop an Aquatic Plant Management (APM) Plan that spells out our goals and objectives, to provide guidance when prioritizing future projects. There are a number of issues related to treatment plans: cost vs benefit, input from lakeshore owners, areas where treatment would be most effective, what type of herbicide to use, etc. Before drafting our APM plan, the LICA board will be surveying members for their input. We will also be working closely with experts from the
U of M, DNR and Three Rivers.

Curly-leaf Pondweed

Concentrations

Potential Treatment Areas

Eurasian Milfoil

Concentrations

Potential Treatment Areas