Red Tide Update 10-2-2025
Published on October 02, 2025
Provided by: Collier County Pollution Control
Current conditions:
Below are the most recent sample results. No reports of respiratory irritation or fish kills have been received.
To view current Health Alerts issued by the Collier County Department of Health, please visit the Collier County Health Alerts.
Forecast:
No red tide impacts are expected at this time. To get the red tide respiratory forecast, please visit the Gulf Coast Red Tide Respiratory Forecast. To get the current beach conditions, please visit the Mote Beach Conditions Reporting System.
The next red tide sample collection:
October 6, 2025. Results may be available late Tuesday, October 7, 2025.
Sample Results
|
Sample Date
|
Location
|
*Results
|
Sampling Agency
|
|
9/30/2025
|
Barefoot Beach
|
NOT PRESENT
|
Pollution Control
|
|
9/30/2025
|
Vanderbilt Beach
|
NOT PRESENT
|
Pollution Control
|
|
9/30/2025
|
Seagate Beach
|
NOT PRESENT
|
Pollution Control
|
|
9/30/2025
|
Naples Pier
|
NOT PRESENT
|
Pollution Control
|
|
9/30/2025
|
South Marco Beach
|
NOT PRESENT
|
Pollution Control
|
| *KEY TO RED TIDE LEVELS-Table provided by Florida Wildlife Research Institute (FWRI) |
| Description |
Karenia breviscells/L |
Possible Effects (Karenia brevis only) |
| NOT PRESENT-BACKGROUND |
0-1,000 |
None anticipated |
| VERY LOW |
>1,000-10,000 |
Possible respiratory irritation; shellfish harvesting closures ≥ 5,000 cells/L |
| LOW |
>10,000-100,000 |
Respiratory irritation; possible fish kills and bloom chlorophyll probably detected by satellites at upper range |
| MEDIUM |
>100,000-1,000,000 |
Respiratory irritation and probable fish kills |
| HIGH |
>1,000,000 |
As above plus discoloration |