Harmful algal blooms (HABs) in the ocean produce toxins that can sicken humans and marine animals. A new study has found an increase in large-whale deaths and injuries near HABs on the U.S. East ...

Blue-green (cyanobacterial) algal blooms may contain toxins or other noxious chemicals that can pose harmful health risks. People or animals may become sick if exposed to these blooms. In extreme ...

A neurotoxin in red tide algae can kill fish and other animals and cause ... the area is seeing some dead fish washing up on beaches, but not in large quantities. The bloom has mainly stayed ...