Two months after Hurricane Ian, southwest Florida's coasts are still being plagued by fish-killing red tide.

Footage from November 27 shows dozens of fish carcasses washed up on Venice beach.

The Mote Marine Laboratory reported that the red tide organism, Karenia brevis, was found in 133 water samples in the past week.

Rainwater and storm surges from Hurricane Ian are believed to have fuelled the red tide.

Beachgoers, who are experiencing irritated eyes and lungs that cause them to cough are being warned to limit exposure to the red tide irritants.

Two months after Hurricane Ian, Southwest Florida, from Sarasota to Naples, is being plagued by fish-killing red tide. Scientists believe that Ian's heavy rain ran off the land, carrying man-made pollution and nutrients into the Gulf of Mexico ,where it's fertilizing the deadly algal blooms. Fish kills have been reported all along the coast. The intensity varies with local wind direction, tides and currents. Scientists are concerned that this event could actually worsen in the months to come. Beachgoers, who are experiencing irritated eyes and lungs that cause them to cough, are being warned to limit exposure to the red tide irritants.