Understanding lake ecology
Lake ecology has a big impact on lake health. Native and invasive species can interact in complex ways, even impacting water clarity and our economy.
Learn more about key topics:
The following organisms are present in the Madison lakes and can have a big impact on water quality.
Water is the link that holds the Yahara Watershed together – learn more about lake levels.
About the lakes
The 62-mile long Yahara River connects lakes Mendota, Monona, Wingra, Waubesa, and Kegonsa in a chain that winds through south-central Wisconsin. Learn more about each lake, and follow the links to lake-by-lake pages with annual updates on water quality conditions.