Algae monitored in Okeechobee Waterway

Once again summer heat has brought seasonal algae blooms in Lake Okeechobee. Fishermen report algae suspended in the water column, especially on the south end of the lake.

Algae and cyanobacteria (commonly called blue-green algae) are part of the lake’s natural ecosystem. The microscopic organisms are always present in all freshwater (unless it is sterile). Excess nutrient loading of phosphorus and nitrogen, little water movement and summer heat set the stage for algae and cyanobacteria to multiply rapidly into a visible “bloom.”

Some of the cyanobacteria common in Lake Okeechobee waterways are capable of producing toxins. According to the U.S. Geological Survey, about 25% of cyanobacteria can produce toxins; however, even cyanobacteria capable of producing toxins do not always do so.

Cloud cover blocked most of the National Oceanic and Atmospheric Administration satellite imagery for Lake Okeechobee last week.

Satellite imagery from May 29 showed light bloom potential on approximately 15% of Lake Okeechobee.