Yahara Portal

Explore the legacy and future of the Yahara Lakes and Watershed

algal blooms

Algal Blooms

Algae are found in every lake and river system in Wisconsin and are important parts of the food web. Using the sun’s energy to photosynthesize, algae make their own food by converting carbon dioxide and water to carbohydrates and the oxygen we breathe. Algae are food to tiny microscopic animals called zooplankton, and to some fish, insects, snails and many other organisms in the food web.

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