Sea urchins cannot control invasive seaweeds
Wednesday, July 13, 2011 - 10:30
in Biology & Nature
Exotic marine species, including giant seaweeds, are spreading fast, with harmful effects on native species, and are increasingly affecting the biodiversity of the Mediterranean seabed. Some native species, such as sea urchins (Paracentrotus lividus), can fight off this invasion, but only during its early stages, or when seaweed densities are very low.