This summer, the jellyfish are already present on the beaches of France. Locate them before swimming through our card.
In recent years, the proliferation of jellyfish is becoming more common in the Mediterranean and along the Atlantic coast.
How does the jellyfish stings?
Jellyfish do not pursue their prey: they are passive. However, they paralyze their victims and can cause drowning in case of complications. In a split second, the sting sends a paralyzing toxin.
The jellyfish has venomous cells have receptors that capture the chemical messages emitted by the skin. The chemical message arrives at the cell receptors that pressure rises and causes the expulsion of the sting. It penetrates deep into the skin injecting venom.
This phenomenon is repeated as many times as there are stinging cells in contact with your skin. There are hundreds of thousands of these cells in a filament jellyfish.
How to react after a jellyfish sting?A jellyfish sting is always followed by intense pain, like a burn or electric shock.
Observation of jellyfish in France
Currently there are no systematic observation of jellyfish appearances network. This information is nevertheless fundamental for swimmers, local authorities, scientists and stakeholders in the marine industry.
Participate you too to this operation and report the presence of jellyfish on the Atlantic Coast and the Mediterranean.
The data collected are presented here daily, and include the latest observations indicated.
Weather jellyfish in real time: August 21, 2014
In partnership with
- Observation of jellyfish in the Mediterranean Sea Portal
Read also: Jellyfish, bright, sea urchins: careful where you step!