State health officials will update the list of lakes weekly.

MARIPOSA COUNTY, Calif. — Investigators are considering whether toxic algae blooms or other hazards may have contributed to the deaths of a California couple, their baby, and the family dog on a ...

Algae is vital to a healthy marine system, and most of the hundreds of varieties in Alaska’s waters are beneficial or benign.

Harmful, blue-green algae blooms have been appearing on bodies of water nationwide, just as you may be drawn to go swimming ...

Thursday, the Department of Health and Human Services lifted harmful algal bloom advisories in Humboldt County and recapped the year’s toxic growths — with eight recorded HAB incidents between late ...

A little-known algae called Karenia cristata is now believed to be the potent toxin behind South Australia’s devastating ...

Manatees are dying in droves because declining water quality is conspiring with algae blooms and other factors to kill off seagrass, the marine mammals’ main food supply, experts say. By Oct. 1, 959 ...