2007 National Lake Survey - Wisconsin Results

What was measured?

In Wisconsin, a team of Wisconsin Department of Natural Resources (WDNR) and U.S. Geological Survey (USGS) staff sampled the selected lakes throughout July and August of 2007. Samples collected included standard water quality constituents (nutrients, pH, color, chlorophyll-a), water clarity, physical profiles, phytoplankton and zooplankton, a sediment core, algal toxins, pathogens, and benthic invertebrates (lake-bottom organisms). In addition, a comprehensive shoreline assessment was conducted at 10 sites around each lakeshore perimeter.

For more information on how we measured...

Lake productivity
Ecological health
Recreational value

Extra work performed in Wisconsin on...

Aquatic plants
Lakeshore habitat