While red tides and other algal blooms can occur worldwide, Karenia brevis is found almost exclusively in the Gulf of Mexico ...

Red tide cell counts are well into the "death zone" in Lee County waters as toxins in the Gulf have turned normally turquoise waters copper. The Florida Department of Health in Lee County issued ...

Already this year, the Florida Fish and Wildlife Conservation Commission has warned red tide in the Florida Keys and Southwest Florida waters have hit high levels. And that's not all. Toxins from ...

Red tide is present from Tampa Bay south to Everglades National Park, with levels varying from normal, background concentrations to levels that are deadly for fish, birds, sea turtles and marine ...

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.