Preserving salt marshes: a natural treasure
- Daph Pelt
- Feb 24
- 1 min read
The salt marshes of Île de Ré are much more than picturesque landscapes. These stretches of water and salt create unique ecosystems, essential for biodiversity and climate regulation. Preserving these environments means protecting a living and fragile natural heritage.
Each marsh is home to remarkable wildlife and plant life. Thousands of migratory birds, such as avocets, black-winged stilts, and terns, settle there each year to feed and raise their young.

Halophytic plants stabilize the banks and filter the water, while microorganisms contribute to salt formation and the carbon cycle. Protecting these areas means supporting an entire, unique web of life.
The marshes also play an important role in the climate. Their organic-rich soils capture CO₂, limiting greenhouse gas emissions. During storms and high tides, they absorb excess water and reduce the risk of flooding. They regulate the local climate and mitigate heat waves.
Artisanal salt harvesting completes the picture. It relies on the sun, wind, and the expertise of the salt workers, without machines or chemicals. Maintaining the marshes for salt production keeps these habitats alive, preserves biodiversity, and supports the local economy.
Everyone can take action to protect these environments. Joining a guided tour helps understand their functioning and fragility. Buying artisanal salt or sticking to the paths while walking directly supports their preservation. Local associations also offer volunteer opportunities to contribute firsthand.
The salt marshes of Île de Ré are living, precious places. Discovering, understanding, and protecting them means participating in the conservation of a unique natural balance, at the heart of the island’s heritage.

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