The red tide organism, Karenia brevis, was not observed in samples collected statewide over the week of November 10-17, 2023, according to the Florida Fish and Wildlife Commission. The FWC continues to use satellite imagery (USF and NOAA NCCOS) to help track nearshore and offshore conditions.
For additional information please view:
- the Southwest Florida Coast report and map.
- the Northwest Florida Coast report and map.
- the Florida East Coast report and map.
No reports of fish kills suspected to be related to red tide were received over the past week. For more details, please visit https://myfwc.com/research/saltwater/health/ and https://visitbeaches.org/.
Respiratory irritation was not reported in Florida over the past week. For recent and current information at individual beaches, please visit https://visitbeaches.org/ and for forecasts that use FWC and partner data, please visit https://habforecast.gcoos.org/.
Scroll down the page for frequently asked questions about red tide and its impact.
Red tide sampling
For current conditions at individual beaches along the Southwest Florida coast, go to this Interactive map with beach-by-beach detail.
Read the full FWC Red Tide report online
Related news stories
Waters off of Florida hit record high temps. Brace for fish kills, algae blooms and coral damage, WUSF and Miami Herald, 7/16/2023
More from Florida Rambler: Florida Blue-Green Algae updates
Red Tide FAQ
What is Red Tide? Common name for harmful algal blooms occurring along coastal regions in Florida from large concentrations of aquatic micro-organisms, specifically an organism called karenia brevis. Bloom events are stimulated by nutrients from terrestrial runoff containing fertilizer, sewage and livestock wastes.
Should I avoid red tide? Toxins from red tide can cause breathing problems and irritate your eyes, nose and throat. Reactions to red tide are worse for people with asthma, emphysema, bronchitis or any chronic lung disease. If you have health issues, stay away from areas with red tide. Pets can become sick from red tide, so keep them away from those areas, as well as contaminated marine animals and fish.
Can we swim near red tide? Don’t swim in or around red tide because the toxin can cause skin irritation, rashes and burning and sore eyes.
What should I do if I come in contact with Red Tide? Wash off with soap and water. You can get relief from respiratory symptoms by being in an air-conditioned space. For people without asthma or chronic respiratory problems, over-the-counter antihistamines can help. If your symptoms don’t get better, see a doctor.
What about the dead fish on the beach? Red tides kill fish and other marine life — avoid contact and don’t swim or walk in areas with dead fish. Keep your pets away from these areas. Don’t harvest or eat distressed or dead fish (or any animals) from or near a red tide. Fish caught live and healthy can be eaten if filleted and rinsed thoroughly with fresh water.
Are shellfish affected by Red Tide? Crabs, lobsters, shrimp, clams, oysters and scallops are filter feeders that can concentrate toxins. These and other shellfish, if harvested from red tide areas, may be contaminated.
- Centers for Disease Control and Prevention
- Florida Department of Health
- Protecting Florida Together
- Florida Poison Control Information Center
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Bob Rountree is a retired journalist, beach bum, angler and camper who has explored Florida for decades. No adventure is complete without finding a scenic paddle trail or unpaved road to nowhere. Bob co-founded FloridaRambler.com with fellow journalist Bonnie Gross 11 years ago.