Swimmers warned over presence of portuguese man o’ war on French beaches
Restrictions on some Atlantic coast beaches due to presence of venomous jellyfish-like creature
Published
Lifeguards are warning swimmers and temporarily restricting access to the sea as physalies have returned to beaches along France’s Atlantic coast.
From the Gironde coast to the Basque Country, authorities are monitoring the arrival of physalies (also known as portuguese man o’ war) and advising swimmers to stay alert as these jellyfish-like marine animals have extremely painful stings.
They are often mistaken for jellyfish because of their appearance, but they are a different type of marine organism. Their blue and purple floating body is attached to long tentacles that contain venomous stinging cells.
These tentacles can remain dangerous even when separated from the animal or when the physalie has washed up dead on the sand.
The tentacles of the creature typically reach about 10 metres in length, though have been known to grow as long as 30 metres in exceptional cases.
They are normally found in warm, tropical waters but can be carried towards French beaches by winds and ocean currents. Their presence depends on weather conditions and sea movements so their arrival is difficult to predict.
At the moment, measures are precautionary, which means beaches are not necessarily closed everywhere or at all times. However, swimmers may be asked to leave the water, advised to wait until the area is considered safe, or, in some cases, prohibited from entering the water until restrictions are lifted.
Due to the multiple reports of sightings the prefecture of Pyrenees-Atlaniques has published a warning on Facebook, guiding people on what to do or not do in case of a sting.
What swimmers should do
The most important thing for beachgoers is to follow lifeguards instructions, avoid touching the creatures and keep children away from stranded physalies.
In case of a sting, you should:
Leave the water immediately
Rinse the affected area with seawater
If possible, use seawater mixed with vinegar
Seek medical advice if pain continues after around 30 minutes
Their sting can cause fainting, an increased heart rate or blood pressure, dizziness, severe or unusual pain, and vomiting. If you or someone who has been stung experiences any of these symptoms, you should contact emergency services promptly by calling 15 (SAMU).
What not to do after a sting
If you are stung it is also very important not to:
Rub the affected area
Use fresh water, which can trigger further venom release
Cut the skin or attempt to remove venom yourself
Apply urine, creams or gels
