Florida Fish & Wildlife Red Tide Status: Friday, October 7, 2016
FWC released the Red Tide Status Report as of this afternoon.
Florida Fish & Wildlife Conservation Commission red tide bulletin at 2:35 PM 10/7/2016.
Status Report Update (October 6, 2016)
“A bloom of the red tide organism, Karenia brevis, persists in Southwest Florida from Pinellas to Lee counties. Due to Hurricane Matthew, FWC-FWRI offices in Saint Petersburg, FL are closed on Friday, October 7th. The following abbreviated red tide report spans September 29th through October 6th, and a full red tide report will be available on Monday, October 10th.
Karenia brevis was observed in background to medium concentrations in six samples collected from Pinellas County; background to high concentrations in thirteen samples collected from Manatee County; low to high concentrations in twenty-eight samples collected from Sarasota County; background to medium concentrations in six samples collected from Charlotte County; background to medium concentrations in twenty samples collected from Lee County; and background to very low concentrations in two samples collected from Collier County.
Additional samples collected throughout Florida over the past week did not contain K. brevis.
Fish kills affecting multiple species have been reported at locations along Pinellas, Manatee, Sarasota, Charlotte, and Lee counties; respiratory irritation has been reported in these same areas. Forecasts for Southwest Florida by the USF-FWC Collaboration for Prediction of Red Tides show offshore followed by southern movement of surface waters, and southern, onshore movement of subsurface waters between southern Pinellas and Lee counties over the next 3 days.
Red tide is a naturally-occurring microscopic alga that has been documented along Florida’s Gulf Coast since the 1840’s and occurs nearly every year. Blooms, or higher-than-normal concentrations, of the Florida red tide alga, Karenia brevis, frequently occur in the Gulf of Mexico at this time of year (late summer or early fall). Red tide begins in the Gulf of Mexico 10 to 40 miles offshore and can be transported inshore by winds and currents.”
Key for Results
|Description||Karenia breviscells/liter||Possible Effects (K. brevis only)|
|NOT PRESENT – BACKGROUND||background levels of 1,000 cells or less||None anticipated|
|VERY LOW||>1,000 to 10,000||Possible respiratory irritation; shellfish harvesting closures > 5,000 cells/L|
|LOW||>10,000 to 100,000||Respiratory irritation, possible fish kills and bloom chlorophyll probably detected by satellites at upper limits|
|MEDIUM||>100,000 to 1,000,000||Respiratory irritation and probable fish kills|
|HIGH||>1,000,000||As above plus discoloration|
For more information, please see FWC.