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Sea off Mallorca: When the Underwater Meadow Disappears

Why Posidonia Matters for Mallorca’s Coast

Posidonia helps protect Mallorca’s beaches, keeps water clear and supports marine life.

Published: April 22, 2026
Sea off Mallorca: When the Underwater Meadow Disappears

Answer

What is Posidonia seagrass and why does it matter in Mallorca?

Posidonia is an underwater seagrass meadow that helps keep Mallorca’s sea clear and the coastline stable. It binds sand, provides shelter for young fish and stores carbon, which makes it an important part of the marine ecosystem. When it is damaged or disappears, beaches can erode more easily and the underwater environment becomes less resilient.

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