Known as caulerpa taxifolia, it is the plant predator of the Mediterranean Sea, especially at Cote d’Azur on the French coast. It is the fastest-growing seaweed in the world and covers the sea bed like a thick blanket. It multiplies more quickly than any other weed and smothers all plant life that happens to grow nearby. It has a cousin in the tropical seas, a weed that grows in small clumps. Caulerpa develops to six times its size!
Ecologists are worried because the killer weed is choking off food that sustains fish and sea birds, forcing many species to leave their home grounds and forage elsewhere.
In France, the navy sent scuba divers to manually destroy the weed but found that it grew back faster and stronger. However, there is some hope.