The National Oceanic and Atmospheric Administration monitors Florida red tide closely.
Its Monday report showed low to high concentrations of Karenia brevis (Florida red tide) present along and offshore from southern Pinellas to Collier counties, including Gasparilla Island.
The bay regions of Charlotte, Lee and central Collier counties can expect high respiratory impacts through Thursday.
Red tide is expected to remain around Gasparilla Island this week.
Southern Sarasota County near Boca Grande can expect low respiratory impacts all week. Northern Charlotte County can expect low respiratory impacts through today.
In the southern Sanibel Island region of Lee County, low respiratory impacts are possible through Thursday.
Over the past few days, reports of respiratory irritation were received from Charlotte and Collier counties with reports of dead fish from Charlotte County, including waters near the Gasparilla island toll booth.