Living on the Gulf Coast means beach days are part of life, and plenty of local dogs love the sand and surf as much as we do. But every so often the Gulf experiences red tide — a bloom of algae that releases toxins into the water and the air. Red tide can irritate and even sicken dogs, and because dogs investigate with their noses and mouths, they can be more exposed than we are. This guide helps Panhandle dog owners recognize red tide and keep their pets safe.
What red tide is
Red tide is a harmful algal bloom, in the Gulf usually caused by an organism called Karenia brevis. When it blooms, it produces toxins that get into the water and become airborne in the sea spray. You may notice the water looks discolored, there are dead fish washing up, and people on the beach are coughing or their eyes are watering. Those airborne toxins that make your throat scratchy affect dogs too — and dogs face extra risk because they may lick the toxins off their fur or eat something dead on the beach.
Symptoms of red tide exposure in dogs
- Coughing, sneezing, or respiratory irritation
- Watery eyes or nasal discharge
- Excessive drooling
- Vomiting or diarrhea (especially if they ingested water or dead fish)
- Lethargy or signs of distress
If your dog shows these signs after a beach trip during a bloom, rinse them off, get them to fresh air, offer clean water, and call your vet — especially if symptoms are more than mild irritation.
How to keep your dog safe
Check red tide conditions before heading to the beach — Florida agencies and local sources post current bloom status and beach conditions. If a red tide event is active, the safest choice is to skip the beach with your dog entirely. If you do go near affected water, do not let your dog drink the seawater or eat anything washed up on the sand, keep them out of the surf, and leave promptly if you or your dog start coughing. After any beach outing, rinse your dog thoroughly with fresh water to remove salt and any toxins from the coat before they lick it off.
After the beach, rinse and watch
Even outside of red tide, rinsing your dog after the beach is good practice — it removes salt, sand, and bacteria that irritate skin and paws. During or after a bloom, that rinse matters even more, because it gets toxins off the coat before your dog grooms themselves. Watch your dog for the rest of the day for any of the symptoms above, and call your vet if anything seems off. When in doubt during a red tide event, keep your dog home; the beach will be there next week.