The Florida red tide organism, Karenia brevis, was present at background to low concentrations over the past week.
In Southwest Florida, K. brevis was observed at background to very low concentrations in three samples collected from Pinellas County, background concentrations in one sample collected from Hillsborough County, background to low concentrations in eleven samples collected from Manatee County, and background to low concentrations in ten samples collected from Sarasota County.