Last updated on 9th April 2025
Dozens of Portuguese man-o-war have been washed ashore at Prainha in Caniçal.
The presence of Portuguese man-o-war has been punctually sighted in recent weeks off the coast of the archipelago of Madeira, but this time, there are a significant number of these jellyfish on local beaches.
The venom of the Portuguese man-of-war is identical to that of the Black Widow Spider, causing severe pain and possible third-degree burns. This can cause scarring and the damage can be permanent.
This type of jellyfish uses its gaseous vesicle to move about. This allows the creature to rise approximately 15 cm above the surface of the water therefore taking advantage of prevailing winds and ocean currents to move about. They are distinguished by their colour which usually is a bluish pink, or purple. Its tentacles can reach up to 50m.
Samantha Gannon
info at madeira-weekly.com