A red tide is a higher-than-normal concentration of a microscopic alga (plant-like organisms). In Florida, the species that causes most red tides is Karenia brevis.
This organism produces a toxin that can affect the central nervous system of fish. At high concentrations (called a bloom), the organisms may discolor the water. However, red tides are not always red. They can appear greenish, brownish and even purple in color. Or, the water can remain its normal color.
Red Tide Monitoring and Response
- The Indian Shores' Red Tide webpage and the Florida Fish & Wildlife Conservation Commission's (FWC) webpage has links to current information on red tide.
- You can find Red Tide Frequently Asked Questions (FAQs) at this link https://myfwc.com/research/redtide/faq/.
- Visit St. Pete/Clearwater posts current beach conditions on their webpage at https://www.visitstpeteclearwater.com/current-beach-conditions?utm_term=can%20be%20found%20here&utm_campaign=Red%20Tide%20Update%20No.%201&utm_content=email&utm_source=Act-On+Software&utm_medium=email&cm_mmc=Act-On%20Software-_-email-_-Red%20Tide%20Update%20No.%201-_-can%20be%20found%20here.
- NOAA's respiratory forecast tool can be found at - https://habforecast.gcoos.org/; (the map takes a bit to load).
Report Fish Kill or Wildlife Impact:
- Fish Kill Hotline at 800-636-0511 or online at https://public.myfwc.com/FWRI/FishKillReport/Submit.aspx
- Wildlife Alert Hotline at 888-404-3922
Florida Department of Health - Pinellas
The Florida Department of Health in Pinellas County (DOH-Pinellas) is notifying the public of a Red Tide bloom along Pinellas coastal beaches. Some people may have mild and short-lived respiratory symptoms such as eye, nose, and throat irritation similar to cold symptoms. Some individuals with breathing problems such as asthma might experience more severe symptoms. Usually symptoms go away when a person leaves the area or goes indoors.
Health officials recommend that people experiencing these symptoms stay away from beach areas or go into an air-conditioned space. If symptoms do not subside, please contact your health care provider for evaluation.
DOH-Pinellas recommends these steps:
- Do not swim around dead fish at this location.
- If you have chronic respiratory problems, be careful and consider staying away from this location as red tide can affect your breathing.
- Do not harvest or eat molluscan shellfish and distressed or dead fish from this location. If fish are healthy, rinse fillets with tap or bottled water and throw out the guts.
- Keep pets and livestock away from water, sea foam and dead sea life.
- Residents living in beach areas are advised to close windows and run the air conditioner (making sure that the A/C filter is maintained according to manufacturer's specifications).
- If outdoors, residents may choose to wear paper filter masks, especially if onshore winds are blowing.
Florida Poison Control Centers have a toll-free 24/7 Hotline for reporting of illnesses, including health effects from exposure to red tide at 1-888-232-8635.
For information about Red Tide and links to other resources, visit http://pinellas.floridahealth.gov/programs-and-services/environmental-health/water-programs/red-tide/index.html.
Red Tide Frequently Asked Questions (FAQs)
What is Red Tide?
A red tide, or harmful algal bloom, is a higher-than-normal concentration of a microscopic alga (plantlike organism). In Florida and the Gulf of Mexico, the species that causes most red tides is Karenia brevis, often abbreviated as K. brevis or “Florida red tide.” At high enough concentrations, Florida red tide can discolor water a red or brown hue.
Can we predict where a red tide will occur?
Although the occurrence of a red tide cannot be predicted, scientists can forecast its movement using wind and water current data once a bloom is located. Scientists also monitor the concentration of the red tide organism by collecting water samples routinely and in response to blooms. Red tide movement and concentration are important because the effects of a red tide, such as dead fish and human respiratory irritation, depend on these factors. The information provided by forecasting and monitoring allows people to make informed decisions regarding their beach-going activities.
Will I experience respiratory irritation during a Florida red tide?
Some people experience respiratory irritation (coughing, sneezing, tearing and an itchy throat) when the Florida red tide organism is present and winds blow onshore. Offshore winds usually keep respiratory effects experienced by those on the shore to a minimum. The Florida Department of Health advises people with severe or chronic respiratory conditions, such as emphysema or asthma, to avoid red tide areas.
Is it safe to swim during a Florida red tide?
Swimming is safe for most people. However, the Florida red tide can cause some people to suffer skin irritation and burning eyes. People with respiratory illness may also experience respiratory irritation in the water. Use common sense. If you are particularly susceptible to irritation from plant products, avoid an area with a red tide bloom. If you experience irritation, get out of the water and thoroughly wash off. Do not swim among dead fish because they can be associated with harmful bacteria.
Is it OK to eat shellfish at a restaurant or purchase shellfish from a seafood market during a red tide?
Store-bought and restaurant-served shellfish are safe to eat during a bloom because the shellfish are monitored by the government for safety.
Is it OK to eat recreationally harvested shellfish during a red tide?
Recreational harvesting of bivalve molluscs such as hard clams, oysters and mussels from conditionally approved or approved shellfish harvesting areas is banned during red tide closures; these organisms may not legally be harvested and, therefore, should not be eaten during any closure of a shellfish harvesting area. To determine whether or not harvesting of shellfish is permitted in an area, visit the Florida Department of Agriculture and Consumer Services, Division of Aquaculture website. Edible parts of other animals commonly referred to as shellfish (crabs, shrimp and lobsters) are not affected by the red tide organism and can be eaten. Do not eat the tomalley (green stuff, hepatopancreas). During scallop season, locally harvested scallops from open scallop harvesting areas are also safe to eat as long as you eat only the muscle of the scallop and not the whole animal.
Is it OK to eat local finfish during a red tide?
Yes, it is safe to eat local finfish as long as the fish are filleted before eaten. Although toxins may accumulate in the guts of fish, these areas are disposed of when the fish are filleted. However, it is never a good idea to eat dead or distressed animals, especially in a red tide area, because the reason for the animal's strange behavior or death cannot be absolutely known.
How can the Florida red tide affect my pets?
Just like people, pets may be affected by the Florida red tide. If you live close to the beach, consider bringing outdoor pets inside during a bloom to prevent respiratory irritation. If you are at the beach with your pets, do not allow them to play with dead fish or foam that may accumulate on the beach during or after a red tide. If your pet eats dead fish, it may get sick. If your pet swims in the red tide, wash it as soon as possible. Most dogs lick themselves after swimming and will consume any toxins on their fur.
More Red Tide and Harmful Algae Bloom Sites:
- Red Tide Status and Map
- Red Tide Hotlines and Information Sources
- Florida Fish & Wildlife Information on Red Tide Status Statewide
NOAA (National Oceanic & Atmospheric Administration)
Centers for Disease Control and Prevention:
Florida Department of Health:
Florida Department of Agriculture and Consumer Services:
Important Phone Numbers and Website
Visit St. Pete/Clearwater Current Beach Conditions - https://www.visitstpeteclearwater.com/current-beach-conditions
- Seaside Seabird Sanctuary, 18328 Gulf Blvd., Indian Shores, FL 33785
Phone: (727) 391-6211
- Birds in Helping Hands
Phone: (727) 365-4592; Email firstname.lastname@example.org
Injured Marine Life:
Manatees/Sea Turtles - FWC Wildlife Alert Line: (888) 404-3922
Sawfish/Goliath Grouper - 1-844-4SAWFISH (472-9347).
If you know someone who would like to receive the e-Lert newsletter, have them visit www.pinellascounty.org/emergency/subscribe.htm