|
A spiral tube-worm in Neptune grass meadows in the Mediterranean Sea, near Marseille, France. Recreational boats seriously damage the ecosystem by plowing the seabed with their anchors. Neptune grass, or Posidonia oceanica, a protected species, grows only a few centimetres a year and blooms only a few times a decade, but does a lot of work. The mat that it forms offers shelter to small fish, traps carbon and produces oxygen, and its leaves limit erosion caused by waves. (Photo by Boris Horvat/AFP Photo)
|
