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Today’s Red Tide Report (7.13.18):  Increase in number of K. brevis samples, fish kills are prevalent, and respiratory issues are still a problem


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Today’s Red Tide Report (7.13.18):  Increase in number of K. brevis samples, fish kills are prevalent, and respiratory issues are still a problem


Red Tide Status Report (July 13, 2018)

A patchy bloom of the Florida red tide organism, Karenia brevis, persists in Southwest Florida.

In Southwest Florida over the past week, K. brevis was observed at background concentrations in one sample collected from Manatee County, background to medium concentrations in 17 samples collected from Sarasota County, very low to high concentrations in five samples collected from or offshore of Charlotte County, background to high concentrations in 14 samples collected from or offshore of Lee County, and background to medium concentrations in four samples collected from Collier County.

Additional samples collected throughout Florida over the past week did not contain K. brevis.

Over the past week, fish kills were reported in Southwest Florida in Manatee County (Manatee Public Beach), Sarasota County (Casey Key, Manasota Beach, Nokomis Beach, Siesta Key Beach, Venice Beach, Venice North Jetty), Charlotte County (Englewood Beach, Manasota Key, Lemon Bay), Lee County (Captiva Beach, Gasparilla Island Range Lighthouse, Gasparilla Island State Park) and Collier County (Marco Island, Stone Court Canal).

Respiratory irritation was reported over the past week in Sarasota County (7/10 and 7/12 at Lido Key; 7/5-7/7 and 7/11-7/12 at Manasota Beach; 7/6-7/7 at Nokomis; 7/9 at Siesta Key; 7/5-7/7, 7/9 and 7/11 at Venice Beach; 7/6-7/7 at Venice North Jetty), Lee County (7/10 at Gasparilla Island Range Lighthouse; 7/7 at Gasparilla Island State Park), and Collier County (7/7 and 7/9-7/12 at South Marco Beach).

Forecasts by the USF-FWC Collaboration for Prediction of Red TidesExternal Website for Pinellas to northern Monroe counties predict variable surface currents with net southern movement for most areas, and southern, onshore transport of subsurface waters over the next three days.

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:

Red Tide Status Map (July 13, 2018)


Red Tide – Statewide Status


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