Officials have closed off swimming at beaches in at least six states due to high bacteria levels. Here's where those closures are.

At last check, the Massachusetts Department of Public Health reported 18 beach closures due to excessive bacteria.

A team of researchers is tapping into the ocean’s vast body of free-floating environmental DNA to catch blooms before they ...

A number of Minnesota cities have reported blue-green algae blooms this summer, causing the temporary closing of some beaches ...

Harmful algal blooms are unsightly and smelly, making them a concern for recreation, property values and businesses. They can disrupt food webs and harm aquatic life, though a recent study suggested ...

The team has named these sacs “kleptosomes.” These membrane-bound compartments protect the chloroplasts and keep them ...

A new study led by Harvard biologists describes how some sea slugs consume algae and incorporate their photosynthetic ...

The field is littered with the corpses of startups that have tried—and failed—to make a buck out of microalgae. What makes ...

DULUTH — Researchers studying blue-green algae blooms in the Duluth-Superior Harbor have pinpointed the cyanobacteria species responsible for the bloom’s toxins in what the Minnesota Sea Grant ...

SOUTH LAKE TAHOE, Calif. – During the summer, algae in Lake Tahoe is a hot topic. While these tiny organisms are a natural part of Tahoe’s aquatic ecosystem, algae can become a harmful algal ...