Posidonia balls in Mallorca.
UNIVERSITY OF BARCELONA
Posidonia oceanica beds.
UNIVERSITY OF BARCELONA
SCUBA-DIVERS enjoy the biodiversity of seagrass locations, which can provide food, shelter and breeding habitats for turtles, dugongs, rays, seahorses and countless other creatures. Seagrass also exchanges vast quantities of carbon dioxide for oxygen, improves water quality and protects coasts from erosion.