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.

Add Yahoo as a preferred source to see more of our stories on Google. Whether you're a native Floridian or a seasoned visitor to the state's coasts, you know it only takes a visit from one unwanted ...

Add Yahoo as a preferred source to see more of our stories on Google. It's officially spring break season in Florida! However, whether you're a native Floridian or a seasoned visitor to the state's ...

Red tide is caused by an microscopic algae called karenia brevis. Health alerts for red tide have been issued for several areas in Southwest Florida. Red tides can last for days, weeks or months. Red ...

It's that time of year when finding a spot at your favorite beach is a lot harder to find. It's spring break season! Is there ...

TAMPA, Fla. (WFLA) — With warmer weather comes red tide, and two of Florida’s congressional representatives have introduced a bipartisan bill that would help the federal government respond to the ...

As red tide counts fall in Southwest Florida, Florida Fish and Wildlife suspects the toxic algae killed a manatee and a dolphin earlier this month. The 9-foot male manatee carcass was collected Feb. 7 ...

It's officially spring break season in Florida! However, whether you're a native Floridian or a seasoned visitor to the state's coasts, you know it only takes a visit from one unwanted visitor to ruin ...

Red tide has waters off Southwest Florida in the "kill zone." Caused by the Karenia brevis organism, red tide is no stranger to Florida waters. They've been documented in the Gulf of Mexico — soon to ...