What's that slimy stuff on the bottom of the lake? Golden brown algae

Red, Green and Brown: What's in the Water?

Lake Okeechobee's Toxic Algae Blooms Threaten Florida and Could Get Worse - The New York Times

With golden brown algae, searching for answers leads to more questions

Impending disaster.' Worsening algae bloom on Florida's Lake Okeechobee threatens coasts again

Crusty brown algae mats growing in pristine Michigan lakes

Torch Lake blues turn brown; Torch Lake Protection Alliance seeks water chemistry, brown algae analysis, Local News

With golden brown algae, searching for answers leads to more questions

Toxic algae are filling Colorado lakes with slimy pea-green soup. Are hotter summers making it worse? - The Colorado Sun

What is That Black Stuff Floating in Sunset Lake?

What is That Black Stuff Floating in Sunset Lake?

Blue-green algae - Government of Nova Scotia, Canada

Harmful Algal Blooms - Freshwater Future