Applying the glider-derived oceanographic data to a numerical ocean circulation model that calculates particle (i.e., red tide cell) trajectory accounted for the cell distribution in the epicenter region (Tampa Bay to Charlotte Harbor), along the Florida Panhandle coast, and along Florida’s east coast in 2018. You can find the forecasts below, and up-to-date conditions here. NCCOS monitors conditions daily and issues regular forecasts for red tide blooms in the Gulf of Mexico and East Coast of Florida. Blooms are often patchy, so impacts vary by beach and throughout the day. Robert Weisberg of the University of South Florida deployed the glider to map water properties over the region. It can also kill marine life, and lead to shellfish closures. The 2018 bloom was very intense due to cells lingering from the previous 2017 bloom mixing with cells transported from offshore.Īlthough earlier red tide research supported the belief that red tides originated offshore in the west Florida continental shelf in nutrient poor waters, new NCCOS sponsored research using a robotic underwater glider confirms this hypothesis. New sponsored research from NCCOS shows that the devastating 2017-2018 red tide along the west coast of Florida originated offshore in the mid-West Florida Shelf west of Tampa Bay.Ĭells of Karenia brevis, the Florida red tide, were transported along the bottom by upwelling circulation to the Florida shoreline “epicenter” between the Tampa Bay and Charlotte Harbor estuaries. The arrows denote the transport pathways between initiation and manifestation within the epicenter region and along the Florida Panhandle. The white ellipse denotes the hypothesized, mid-shelf initiation region. In Sarasota County, high levels persist off Longboat Key, New Pass, Lido Key, Nokomis Beach and North Jetty Park. A composite of all observations of Karenia brevis made by the Florida Wildlife Research Institute from 1953 through 2007.
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