A massive bloom of floating brown algae, stretching more than 8,800 kilometers across the Atlantic Ocean, is troubling scientists and coastal communities alike — and new research suggests it’s no ...

At a beach near Algiers, brown algae native to the Pacific Ocean cover the golden sand, posing a threat to ecosystems native to the area and their stench repelling swimmers at the peak of summer.

Brown’s Beach in Stillwater is closed because of a sudden blue-green algae bloom. The algae, also known as cyanobacteria, can be harmful, when they lead to the development of harmful algal blooms.

Marine algae, encompassing diverse groups such as brown, red and green seaweeds, are a vital component of coastal ecosystems and an increasingly important source of bioactive compounds. These ...