🌿 Posidonia: The Hidden Treasure of the Mediterranean to Protect

Posidonia (Posidonia oceanica) is a marine plant endemic to the Mediterranean Sea. Unlike algae, it is a true plant with roots, stems, and leaves. It forms vast underwater meadows that play a crucial role in maintaining the balance of marine ecosystems.

Posidonia meadows are often referred to as the “lungs of the Mediterranean” because of their ability to produce oxygen and absorb carbon dioxide. They also serve as nurseries for many marine species, providing shelter and food for an exceptional biodiversity.

© Raphael Demaret

Menorca is famous for its exceptionally clear waters. This transparency is largely due to the abundant presence of Posidonia, which acts as a natural filter. By stabilizing the seabed and reducing beach erosion, it helps maintain coastal ecosystems and supports sustainable tourism on the island.

Despite its importance, Posidonia is currently threatened by several factors:

• Boat anchoring, which tears up the fragile underwater meadows.
• Pollution, which degrades water quality and hinders its growth.
• Climate change, which disrupts its natural development.

Therefore, raising awareness about its protection is essential:

• Use designated anchoring zones to avoid damaging the meadows.
• Reduce pollution by adopting environmentally friendly practices.
• Support local initiatives aimed at preserving these vital ecosystems.