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Current Conditions
Bloom concentrations of the red tide organism,
Karenia brevis, persist on Florida’s Southwest, Northwest, and East coasts. Patchiness was observed in each region. Additional details are provided below.
In Southwest Florida, relative to last week,
K. brevis concentrations increased slightly in areas of Pinellas, Manatee, Sarasota, Lee and Collier counties but “high” (>1,000,000
K. brevis cells per liter) and “medium” concentrations occurred only in or offshore of Pinellas and Sarasota counties. In Northwest Florida, “high” concentrations of
K. brevis were observed in one Santa Rosa county sample and “medium” concentrations occurred in Santa Rosa and Okaloosa county samples. On the East Coast, three coastal samples from Brevard and Indian River counties contained “high” concentrations, and medium cell concentrations were observed at multiple sites in Brevard, Indian River, and St. Lucie counties, and one site in Broward County. Relative to last week
K. brevis concentrations generally increased in Brevard and Indian River counties, and decreased in areas of Martin, Palm Beach and Miami-Dade counties.
- In Southwest Florida over the past week, K. brevis was observed at background to high concentrations in or offshore of Pinellas County, background to low concentrations in Manatee County, background to high concentrations in Sarasota County, background to very low concentrations in Charlotte County, very low concentrations in or offshore of Lee County, background to very low concentrations in or offshore of Collier County, and background to low concentrations in or offshore of Monroe County.
- In Northwest Florida over the past week, K. brevis was observed at very low concentrations in or offshore of Escambia County, medium to high concentrations in Santa Rosa County, low to medium concentrations in offshore of Okaloosa County, very low concentrations in Walton County, background concentrations offshore of Dixie County, and low concentrations in offshore Pasco County.
- Along the Florida East Coast over the past week, K. brevis was observed at background concentrations in Volusia County, background to high concentrations in Brevard County, very low to high concentrations in Indian River County, background to medium concentrations in or offshore of St. Lucie County, background to low concentrations in Martin County, background to low concentrations in Palm Beach County, background to medium concentrations in or offshore of Broward County, and background to very low concentrations in or offshore of Miami-Dade County.
In Southwest Florida, reports of fish kills were received for Pinellas and Sarasota counties. In Northwest Florida, reports of fish kills were received for Okaloosa, Walton, and Bay counties and offshore Pasco county. Along the East Coast of Florida, reports of fish kills were received for Volusia, Brevard, Indian River, St. Lucie, Martin, and Palm Beach counties.
Respiratory irritation was reported over the past week in Southwest Florida (in Pinellas, Manatee, Sarasota, Lee, and Collier counties). Respiratory irritation was also reported in Northwest Florida (in Okaloosa County) and the Florida East Coast (in Brevard and Indian River counties). For additional information, view the southwest coast
report , the northwest coast
report , and the east coast
report .
Forecasts by the
USF-FWC Collaboration for Prediction of Red Tides for Pasco to northern Monroe counties predict net southwestern transport of surface waters and southeastern movement of subsurface waters for most areas over the next three days. Three-day forecasts for Escambia to western Gulf counties predict net southwestern transport of surface waters and northeastern movement of subsurface waters.
This information, including maps and reports with additional details, is also available on the
FWRI Red Tide website. The website also provides links to additional information related to the topic of Florida red tide including satellite imagery, experimental red tide forecasts, shellfish harvesting areas, the FWC Fish Kill Hotline, the Florida Poison Information Center (to report human health effects related to exposure to red tide), and other wildlife related hotlines.
To learn more about various organisms that have been known to cause algal blooms in Florida waters, see the FWRI Red Tide
Flickr page. Archived status maps can also be found on Flickr.
The FWRI HAB group in conjunction with Mote Marine Laboratory now have a
Facebook page. Please like our page and learn interesting facts concerning red tide and other harmful algal blooms in Florida.
Additional information regarding the current status of algal blooms in South Florida is being consolidated and posted on the Florida Department of Environmental Protection’s website:
https://floridadep.gov/dear/algal-bloom.