Add Yahoo as a preferred source to see more of our stories on Google. The Florida Department of Health in Lee County has issued more advisories for beaches and waterways along the coast, although ...

The red tide organism, Karenia brevis, was detected at background concentrations in a single sample from St. Johns County ...

New research suggests that toxic red tides may be responsible for fish and dolphin deaths, even when it's no longer present in the coastal waters. Scientists may have a new answer to their questions ...

Add Yahoo as a preferred source to see more of our stories on Google. Red tide has waters off Southwest Florida in the "kill zone." Caused by the Karenia brevis organism, red tide is no stranger to ...

Fish kills can start when levels reach 10,000 cells per liter. In 20 Florida locations, concentrations were higher than 100,000. Health alerts for red tide have been issued in Lee, Collier counties.

Just as residents and visitors prepare for the Thanksgiving holiday, state environmental monitors have detected a spike in red tide activity along the Gulf Coast. Over the past week, the Florida Fish ...

When the waters off Florida’s west coast were infested by the dreaded “red tide” nine years ago, fish died by the million and lay in” stinking windrows on the beaches. The spray of the poisoned surf ...

Officials with the San Francisco Bay Regional Water Quality Control Board said Thursday that harmful algal blooms also known as "red tides" found recently in parts of the Bay have not so far brought ...

In the spring of 2020, a historic red tide event occurred in waters off Southern California. Driven by a bloom of the dinoflagellate Lingulodinium polyedra, this event brought nighttime displays of ...

A new study led by researchers at the University of South Florida shines light on the environmental drivers of red tide blooms. Identifying viruses associated with red tide can help researchers ...

At least 21 marine animals have washed ashore dead throughout the San Francisco Bay Area in the last week — potential victims of the return of the same toxic red tide that killed thousands of fish in ...