A harmful algal bloom occurs in bodies of freshwater when Cyanobacteria, also called blue-green algae, produce toxins.

Anglers are working alongside academics on a project to tackle toxic algal blooms. The Prymnesium blooms can occur on the ...

A marine rescuer tells us the animals are being poisoned by a harmful algal bloom offshore from Southern California. Scientists say more frequent blooms are fueled by changing ocean conditions and ...

A toxic plant lurks in Norfolk's waterways, threatening to cause serious harm to wildlife living in the Broads.

Too many nutrients can cause microscopic marine algae to grow out of control with harmful effects on animals and people ...

SeaWorld's rescue team told CBS 8 that affected sea lions in need of urgent care have been turning up in odd places.

Dozens of marine mammals -- including dolphins — have been sickened by a toxic algae bloom off the San ... are still trying to determine the effects of the toxicity long-term.

The dumping of effluent and fertilizer into Florida waters caused a massive bloom of phytoplankton, killing off much of the ...

A harmful algal bloom of Karenia mikimotoi made dozens of surfers sick and killed seadragons, fish and octopuses on two South Australian beaches.

“LA fires are being considered in terms of localized effects on the harmful algal bloom in the LA area. We still see ash in the water at Santa Monica Pier along with high levels of the causative ...