Nutrient-laden runoff from sewage spills and fertilizer does not cause red tide, Pierce said, but this can intensify it. “If red tide is in the area, it is going to make it worse and make it ...

The red tide never went away, and what our region is experiencing now is a “harmful” algal bloom of Karenia brevis, which causes red tide.A "harmful" bloom means that there are more than ...

Red tide is currently blanketing the Southwest Florida coast. Levels from Tampa Bay south to Marco Island range from around 10,000 cells per liter to more than 1 million cells per liter, according ...

The red tide in Florida washed up many dead fish on the state's southwestern coast. This map shows where the red tide is now. Active sniper in Idaho kills 2 firefighters in ambush, sheriff says.

Dead fish along causeway on July 19 as red tide ravages Tampa Bay. (WFLA/Eagle 8 photo) Dead fish at Pass-A-Grille on July 9 as red tide ravages Tampa Bay.

Here’s what Tampa Bay legislators have said they’ve put forward in an attempt to help avoid another Red Tide year like 2018, and what they’re doing in light of this summer’s bloom.

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.

Red tide is often gone by spring, but in some years, the infection has lingered. Nascent studies have connected nutrient-laden runoff from farms and developments to increased levels of red tide ...

Red tide is caused by a higher-than-normal concentration of the algae Karenia brevis. It's common in Florida and the Gulf of Mexico, according to FWC. At high concentrations, ...

Many red tides produce toxic chemicals, and the organism specific to Florida’s red tide has toxins that affect the central nervous system of fish, which kills them.

Red tides can have a widespread effect on marine life and can affect people if they swim in the water or consume contaminated seafood. Learn what causes a red tide, how it impacts the environment ...