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 any beach day — red tide. Karenia brevis is a naturally ...

Heading to the beach for Valentine’s Day or over the President’s Day holiday? Watch out for red tide. Caused by the Karenia brevis organism, red tide can cause respiratory problems, especially if ...

While red tide counts reportedly fell in parts of Florida's Gulf coast, the toxic algae is suspected in the recent deaths of a manatee and a dolphin.