Yahara Portal

Explore the legacy and future of the Yahara Lakes and Watershed

blue-green algae

What is blue-green algae?

If you have ever looked at a lake that appeared to have had a can of turquoise paint thrown on it, it’s is very likely that you have seen a blue-green algae bloom. The Yahara Lakes are known for summer blue-green algae blooms. What’s the difference between blue-green and green algae and why is it important?

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