Red Tide & Water Quality

Sanibel Red Tide & Water Quality Friday Update, November 2, 2018

Red Tide Daily Sample Map External Website. This map contains the last eight days of sampling and is updated daily at 5 p.m. Please be sure to click on individual dots for sampling details. Courtesy Of FWC.
Red Tide Daily Sample Map External Website. This map contains the last eight days of sampling and is updated daily at 5 p.m. Please be sure to click on individual dots for sampling details. Courtesy Of FWC.

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 area. Additional details are provided below.

In Southwest Florida, relative to last week, K. brevis concentrations generally increased from southern Pinellas through Charlotte counties, excluding Hillsborough County. Observations of >1,000,000 K. brevis cells per liter (“high” concentrations) occurred in Pinellas, Manatee, Sarasota, and Charlotte counties and offshore of Manatee and Collier counties. In Northwest Florida, up to “medium” concentrations of K. brevis were observed in and/or offshore of Escambia, Okaloosa, Bay and Gulf counties. On the East Coast, “high” concentrations of K. brevis were found in Brevard County only, in one sample; up to medium concentrations occurred only in Brevard and Martin counties. Relative to last week, K. brevis concentrations generally decreased from Brevard through St. Lucie counties, and increased in parts of Martin County.

  • In Southwest Florida over the past week, K. brevis was observed at background to high concentrations in Pinellas County, background concentrations offshore of Hillsborough County, background to high concentrations in or offshore of Manatee County, very low to high concentrations in or offshore of Sarasota County, very low to high concentrations in Charlotte County, background to medium concentrations in Lee County, and background to high concentrations in or offshore of Collier County.
  • In Northwest Florida over the past week, K. brevis was observed from very low to medium concentrations in or offshore of Escambia County, low to medium concentrations in Santa Rosa County, low to medium concentrations in or offshore of Okaloosa County, low to medium concentrations in Bay County, and low to medium concentrations in Gulf County.
  • Along the Florida East Coast over the past week, K. brevis was observed from background to high concentrations in Brevard County, background to very low concentrations in Indian River County, background to very low concentrations in St. Lucie County, very low to medium concentrations in Martin County, background to low concentrations in Palm Beach County, background concentrations in Broward County, and background to very low concentrations in Miami-Dade County.
Florida Red Tide Status Map, 11-2-18, Courtesy Of FWC, Florida Red Tide Report.
Florida Red Tide Status Map, 11-2-18, Courtesy Of FWC, Florida Red Tide Report.

Fish Kills
In Southwest Florida, reports of fish kills were received for Pinellas, Manatee, and Sarasota counties. In Northwest Florida, reports of fish kills were received for Okaloosa and Walton counties. Along the East Coast of Florida, reports of fish kills were received for Brevard, Indian River, Martin, and Palm Beach counties. More detailed information is available at http://myfwc.com/fishkill.

Respiratory Irritation
Respiratory irritation was reported over the past week in Southwest Florida (in Pinellas, Manatee, Sarasota, and Lee counties). Respiratory irritation was also reported in Northwest Florida (in Escambia and Okaloosa counties).

Weekly Change, Southwest Florida Red Tide Status Map, 11-2-18, Courtesy Of FWC, Florida Red Tide Report.
Weekly Change, Southwest Florida Red Tide Status Map, 11-2-18, Courtesy Of FWC, Florida Red Tide Report.

Forecast
Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict variable movement of surface and net southern movement of subsurface waters over the next three days. Three-day forecasts for Escambia to western Gulf counties predict net eastern movement of surface and subsurface waters in most areas. Source:  FWC.

~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~

Sanibel Red Tide & Water Quality End-Of-Week Update for September 28, 2018

Southwest Florida Red Tide Status Map, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.
Southwest Florida Red Tide Status Map, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.

Current Conditions
“A bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida and extends along ~130 miles of coastline, from northern Pinellas to southern Lee counties, and extends offshore (10 miles or more). A patchy bloom of K. brevis also continues in Northwest Florida. Additional details are provided below.

Over the past week in Southwest Florida, K. brevis concentrations generally decreased in areas of Pinellas, Manatee, Sarasota, Charlotte and Collier counties, creating patchier bloom conditions along the coast. Observations of >1,000,000 K. brevis cells per liter (“high” concentrations) occurred in Manatee, Sarasota, and Lee counties and >10 miles offshore of Hillsborough County, but at fewer sites relative to last week. In Northwest Florida, K. brevis was observed in or offshore of Walton, Bay, Gulf, and Pasco counties, with up to “medium” concentrations observed in Bay and Gulf counties. Relative to last week, cell counts increased in areas of Bay County and decreased in Okaloosa County.

Weekly Change, Southwest Florida Red Tide Status Map, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.
Weekly Change, Southwest Florida Red Tide Status Map, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.

Fish Kills
In Southwest Florida, reports of fish kills were received for multiple locations in and/or offshore of Pinellas, Manatee, Sarasota, Charlotte, Lee and Collier counties. In Northwest Florida, reports of fish kills were received for Walton, Bay and Gulf counties. More detailed information is available at http://myfwc.com/fishkill.

Respiratory Irritation
Respiratory irritation was reported in Southwest Florida (in Pinellas, Manatee, Sarasota, Lee, and Collier counties). Respiratory irritation was not reported in Northwest Florida over the past week. For additional information, view the Southwest Coast report Adobe PDF.

Forecast
Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict net northwestern movement of surface waters and southeastern transport of subsurface waters for most areas over the next three days. Three-day forecasts for Northwest Florida predict net southeastern transport of surface waters and northeastern movement of subsurface waters from Escambia to western Gulf counties. Forecasts for Pasco County predict net northwestern transport at the surface and eastern movement of subsurface waters over the next 3 days.Source:  FWC.

Florida Red Tide Status Map, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.
Florida Red Tide Status Map, 9-28-18, Courtesy Of FWC, Florida Red Tide Report.

~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~

Sanibel Red Tide & Water Quality End-Of-Week Update for September 21, 2018

Southwest Florida Red Tide Status Map, 9-21-18, Courtesy Of FWC, Florida Red Tide Report.
Southwest Florida Red Tide Status Map, 9-21-18, Courtesy Of FWC, Florida Red Tide Report.

Current Conditions

“A bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida and extends along ~135 miles of coastline, from northern Pinellas to northern Collier counties, and extends offshore (10 miles or more). A patchy bloom of K. brevis also continues in Northwest Florida. Additional details are provided below.

Over the past week in Southwest Florida, K. brevis concentrations generally decreased in areas of Pinellas, Sarasota, and Charlotte counties and increased in northern Manatee County, parts of Lee County, and northern Collier County. Observations of >1,000,000 K. brevis cells per liter (“high” concentrations) occurred in Pinellas, Manatee, Sarasota, Charlotte, and Lee counties and >15 miles offshore of Sarasota, Lee and Collier counties. In Northwest Florida, K. brevis was observed in Okaloosa, Bay, Gulf, and Pasco counties, with up to “medium” concentrations observed in Gulf County only. Relative to last week, cell counts generally decreased in Bay County.” More specific details are provided below.

Weekly Change, Southwest Florida Red Tide Status Map, 9-21-18, Courtesy Of FWC, Florida Red Tide Report.
Weekly Change, Southwest Florida Red Tide Status Map, 9-21-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 9-21-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 9-21-18, Courtesy Of FWC, Florida Red Tide Report.

Fish Kills
In Southwest Florida, reports of fish kills were received for multiple locations in and/or offshore of Pinellas, Manatee, Sarasota, Charlotte, and Lee counties and one location offshore of Collier County. In Northwest Florida, reports of fish kills were received for Walton, Bay and Gulf counties. More detailed information is available at http://myfwc.com/fishkill.

Respiratory Irritation
Respiratory irritation was reported in Southwest Florida (in Pinellas, Manatee, Sarasota, and Lee counties) and in Northwest Florida (in Gulf County). For additional information, view the Southwest Coast report Adobe PDF and Northwest Coast report Adobe PDF.

Forecast

Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict net southwestern movement of surface waters and net southeastern transport of subsurface waters for most areas over the next three days. Three-day forecasts for Northwest Florida predict net eastern transport of surface waters and northeastern movement of subsurface waters from Escambia to western Gulf counties.Source:  FWC.

~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~

Sanibel Red Tide & Water Quality End-Of-Week Update for September 7, 2018

Southwest Florida Red Tide Status Map, 9-7-18, Courtesy Of FWC, Florida Red Tide Report.
Southwest Florida Red Tide Status Map, 9-7-18, Courtesy Of FWC, Florida Red Tide Report.

Current Conditions
“A bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida and extends from Pinellas to northern Collier counties along ~120 miles of coastline. Observations of >1,000,000 K. brevis cells per liter (“high” concentrations) occurred in samples collected in or offshore of Sarasota, Charlotte, and Lee counties only. Relative to last week, multiple locations in Sarasota and Collier counties showed decreased cell concentrations.

An aerial survey conducted on 9/6 as well as recent water sampling and chlorophyll satellite imagery indicate that the bloom of K. brevis likely extends offshore (10 miles or more) in some areas of the bloom region. Patchy accumulations of the marine cyanobacterium Trichodesmium were also observed ~10 miles offshore of Manatee and Sarasota counties. Persistent surface currents—prior to, during, and after the passage of Tropical Storm Gordon—likely played a role in transporting cells of K. brevis to the northwest. More specific details are provided below.

Weekly Change, Southwest Florida Red Tide Status Map, 9-7-18, Courtesy Of FWC, Florida Red Tide Report.
Weekly Change, Southwest Florida Red Tide Status Map, 9-7-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 9-7-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 9-7-18, Courtesy Of FWC, Florida Red Tide Report.

Fish Kills
Over the past week, reports were received for multiple locations in Pinellas, Manatee, Sarasota, and Lee counties. More detailed information is available at http://myfwc.com/fishkill.

Respiratory Irritation
Respiratory irritation was reported over the past week in Manatee, Sarasota, and Lee counties. For additional information, view the Southwest Coast report Adobe PDF. 

Forecast
Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict net northwestern movement of surface waters for most areas and net southeastern transport of subsurface waters over the next three days. A change from northwestern to southeastern surface transport is predicted to occur towards the end of this period.Source:  FWC.

~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~

Sanibel Red Tide & Water Quality End-Of-Week Update for August 31, 2018

Southwest Florida Red Tide Status Map, 8-31-18, Courtesy Of FWC, Florida Red Tide Report.
Southwest Florida Red Tide Status Map, 8-31-18, Courtesy Of FWC, Florida Red Tide Report.

Current Conditions
A bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida and continues to extend from Pinellas to Collier counties along ~145 miles of coastline. Observations of >1,000,000 K. brevis cells per liter (“high” concentrations) occurred offshore of Pinellas and Hillsborough counties for the first time this week and continued in areas of Sarasota, Charlotte, Lee, and Collier counties.

Relative to last week, multiple locations in Manatee, Sarasota, Charlotte, and Collier counties showed decreased cell concentrations, and no “high” concentrations were observed in Manatee County. Surface currents over the past several days are likely playing a role in transporting cells of K. brevisto the northwest and are expected to continue based on short-term forecasts. An aerial survey conducted last week and vessel-based surveys this week indicated the presence of offshore blooms of the marine cyanobacterium, Trichodesmium. More specific details are provided below.

Weekly Change, Southwest Florida Red Tide Status Map, 8-31-18, Courtesy Of FWC, Florida Red Tide Report.
Weekly Change, Southwest Florida Red Tide Status Map, 8-31-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 8-31-18, Courtesy Of FWC, Florida Red Tide Report.
Sanibel Red Tide, Sampling Data, 8-31-18, Courtesy Of FWC, Florida Red Tide Report.

Fish Kills
Over the past week, reports were received for multiple locations in Pinellas, Manatee, Sarasota, Charlotte, Lee, and Collier counties. More detailed information is available at http://myfwc.com/fishkill.

Respiratory Irritation
Respiratory irritation was reported over the past week in Pinellas, Manatee, Sarasota, Lee, and Collier counties. For additional information, view the Southwest Coast report Adobe PDF. 

Forecast
Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict net northwestern movement of surface waters in most areas and net southeastern transport of subsurface waters over the next three days.Source:  FWC.

~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~

Sanibel Red Tide & Water Quality End-Of-Week Update for August 24, 2018

Florida Red Tide Status Map, 8-24-18, Courtesy Of FWC, Florida Red Tide Report.
Florida Red Tide Status Map, 8-24-18, Courtesy Of FWC, Florida Red Tide Report.

Current Conditions
A bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida and currently extends from Pinellas to Collier counties along ~145 miles of coastline. Observations of >1,000,000 K. brevis cells per liter (“high” concentrations) continue to occur at coastal and inshore sites from Manatee to northern Collier counties, and minimal change in cell concentrations was observed for most areas relative to last week. Coastal currents important for transporting cells of K. brevis continue to alternate between predominantly northern or southern flow. Aerial surveys from Pinellas to northern Charlotte counties indicated the presence of offshore blooms of the marine cyanobacterium, Trichodesmium. More specific details are provided below.

Weekly Change, Southwest Florida Red Tide Status Map, 8-24-18, Courtesy Of FWC, Florida Red Tide Report.
Weekly Change, Southwest Florida Red Tide Status Map, 8-24-18, Courtesy Of FWC, Florida Red Tide Report.

Fish Kills
Over the past week, reports were received for multiple locations in Pinellas, Manatee, Sarasota, Charlotte, Lee, and Collier counties. More detailed information is available at http://myfwc.com/fishkill.

Respiratory Irritation
Respiratory irritation was reported over the past week in Pinellas, Manatee, Sarasota, Lee, and Collier counties. For additional information, view the Southwest Coast report Adobe PDF. 

Forecast
Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict variable movement of surface waters, with net southern transport in most offshore areas and net northern transport close to shore, and net southeastern transport of subsurface waters over the next three days.Source:  FWC.

Southwest Florida Red Tide Status Map, 8-24-18, Courtesy Of FWC, Florida Red Tide Report.
Southwest Florida Red Tide Status Map, 8-24-18, Courtesy Of FWC, Florida Red Tide Report.

~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~

Sanibel Red Tide & Water Quality Mid-Week Update for August 22, 2018

Southwest Coast Red Tide Counts August 14 through 21, 2018, Courtesy Of FWC, Florida Red Tide Report.
Southwest Coast Red Tide Counts August 14 through 21, 2018, Courtesy Of FWC, Florida Red Tide Report.

Current Conditions
“A bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida and currently extends along ~145 miles of coastline. Observations of >1,000,000 K. brevis cells per liter (“high” concentrations) continue to occur at coastal and inshore sites from Manatee to northern Collier counties, with most areas showing comparable or slightly increased cell concentrations relative to last week.

K. brevis was observed in Pinellas County for the third week in a row, with additional impacted sites (based on observations of cells and/or associated impacts) and higher cell concentrations observed relative to last week. Aerial surveys from Manatee to northern Charlotte counties indicated the presence of offshore blooms of the marine cyanobacterium, Trichodesmium.

Weekly Change, Southwest Florida Red Tide Status Map, 8-17-18, Courtesy Of FWC, Florida Red Tide Report.
Weekly Change, Southwest Florida Red Tide Status Map, 8-17-18, Courtesy Of FWC, Florida Red Tide Report.

Reports of fish kills were received for multiple locations in Pinellas, Manatee, Sarasota, Charlotte, Lee, and Collier counties. Respiratory irritation was reported over the past week in Pinellas, Manatee, Sarasota, Lee, and Collier counties.

Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict net southern movement of surface waters and net southeastern transport of subsurface waters over the next three days. The next complete red tide status report will be posted on Friday, August 24th.” Source:  FWC.

Southwest Florida Red Tide Status Map, 8-17-18, Courtesy Of FWC, Florida Red Tide Report.
Southwest Florida Red Tide Status Map, 8-17-18, Courtesy Of FWC, Florida Red Tide Report.