Algal Blooms

There are many that cause harm—but it’s a small fraction of what’s out there. They’re not the only algae in the water - Don Anderson

Algal Blooms

image by: A Toxic Inconvenience
     

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What are algae blooms and why are they bad?

Innumerable microscopic algae help anchor aquatic ecosystems; they turn sunlight into food, and themselves serve as food for water-dwelling frogs, fish, snails, and insects.

But under the wrong conditions—warm water, too much sunlight, and excess nutrients from agricultural or sewage runoff—some species of algae can multiply uncontrollably, forming green, red, blue-green, or brown masses that smother the surface of waters and can produce potentially dangerous toxins.

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Last Updated : Thursday, November 24, 2022