Florida Fish & Wildlife Red Tide Status: Friday, April 7, 2017
FWC released the Red Tide Status Report this week.
Florida Fish & Wildlife Conservation Commission red tide bulletin at 3:45 PM 4/7/2017.
Red Tide Status (April 7, 2017)
“A patchy bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida from southern Pinellas to Lee counties.
Over the past week, Karenia brevis was observed at background to very low concentrations in three samples collected from Pinellas County; background to very low concentrations in six samples collected from Manatee County; background to medium concentrations in twenty-six samples collected from Sarasota County; background to low concentrations in six samples collected from Charlotte County; and background to low concentrations in twenty-one samples collected from Lee County.
One sample from the East Coast of Florida (Brevard County) contained background concentrations of K. brevis. Additional samples collected throughout Florida over the past week did not contain K. brevis.
Over the past week, respiratory irritation has been reported along Manatee County (Coquina and Manatee beaches), Sarasota County (Venice North Jetty, Siesta Key, Manasota Beach, Lido Key, and Nokomis), and Lee County (Bowmans Beach). Fish kills were reported along Manatee County (Manatee Beach), Sarasota County (Siesta and Lido keys, Nokomis), and Lee County (Bonita Beach). Forecasts for Southwest Florida by the USF-FWC Collaboration for Prediction of Red Tides predict net southern, and then a slightly offshore movement of surface waters, and southern, onshore movement of subsurface waters from Pinellas to northern Monroe counties over the next three days.”
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.