Florida Fish & Wildlife Red Tide Status: Friday, April 28, 2017
FWC released the Red Tide Status Report this week.
Florida Fish & Wildlife Conservation Commission red tide bulletin at 3:27 PM 4/28/2017.
Red Tide Status (April 28, 2017)
The Florida red tide organism, Karenia brevis, persists at background and very low concentrations in Southwest Florida.
Over the past week, Karenia brevis was observed at background concentrations in one sample collected from Pinellas County; background concentrations in one sample collected from Manatee County; background concentrations in three samples collected from Sarasota County; background to very low concentrations in six samples collected from Charlotte County; background concentrations in two samples collected from Lee County; and background concentrations in one sample collected from Collier County.
One sample collected from the East Coast (Brevard County) contained background concentrations of K. brevis. Two samples collected from the Northwest Coast (Bay and Gulf counties) contained background concentrations of K. brevis.
Additional samples collected throughout Florida over the past week did not contain K. brevis.
Forecasts for Southwest Florida by the USF-FWC Collaboration for Prediction of Red Tides predict net northern movement of surface waters, net export of estuarine waters, and no net movement of subsurface waters from Pinellas to northern Lee counties over the next three days.” For more information, please see FWC.
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|