Category Archives: Algal bloom

Algal blooms can be dramatic and are a result of excess nutrients occur naturally or induced by human activities in both freshwater and marine (salt) water bodies.

River Algae Known as Rock Snot Boosted by Climate Change?

Thick algal mats that cover river bottoms are flourishing in our warmer world. Scientists call it Didymosphenia geminata.

But it’s more widely known as “rock snot”—mats of algae carpeting the bottoms of some rivers and lakes—and it’s quickly spreading around the globe, possibly because of climate change, a new study says… Continue reading River Algae Known as Rock Snot Boosted by Climate Change?

Tiny Algae Responsible for Mysterious Fossil Whale Graveyard?

Ever since a highway construction crew in Chile uncovered a fossil graveyard of some 40 prehistoric whales in 2010, with skeletons dating back more than five million years, scientists have wondered why so many giant animals died in one place… Continue reading Tiny Algae Responsible for Mysterious Fossil Whale Graveyard?

Introduction to Didymosphenia geminata (Didymo)

[New Zealand] Didymosphenia geminata, commonly known as didymo or rock snot, is a species of diatom that produces nuisance growths in freshwater rivers and streams with consistently cold water temperatures and low nutrient levels. It is native to the northern hemisphere, and… Continue reading Introduction to Didymosphenia geminata (Didymo)