Hi, do you know me?
I'm Posidonia!

Dive with us to discover the world of Posidonia

An awareness campaign of UNESCO-IOC in partnership with E.ON

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Posidonia

EN

About

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Posidonia

EN
My name is Posidonia oceanica. I live underwater in the shallow, clear waters of the Mediterranean Sea.
Have you ever met me? I am green and my leaves move with the rhythm of the waves and currents.
Perhaps we’ve already met during your summer swims or a walk along the seashore.

Let’s get to know each other better!

Take part in the challenge!

 Am I a plant or an algae?

PLANT

Algae

What is the estimated age of the oldest Posidonia oceanica meadows?

A hundred years old

Several thousand years old

Where can you find Posidonia?

At the beach, close to the dunes

Underwater, in shallow and clear waters

How many species live and are supported by Posidonia?

A hundred at most

More than one thousand

How important is Posidonia to your life and well-being?

🤨

5

😍

Did you know that

Posidonia sustains a rich and healthy ecosystem

Seagrass meadows rank among the most valuable coastal ecosystems on Earth in terms of the ecosystem services they provide. Posidonia generates oxygen through photosynthesis, helping to make a thriving environment possible. As a habitat, Posidonia meadows are biodiversity hotspots, providing food, a safe nursery, and breeding ground for hundreds of species.

Posidonia sustains a rich and healthy ecosystem

Seagrass meadows rank among the most valuable coastal ecosystems on Earth in terms of the ecosystem services they provide. Posidonia generates oxygen through photosynthesis, helping to make a thriving environment possible. As a habitat, Posidonia meadows are biodiversity hotspots, providing food, a safe nursery, and breeding ground for hundreds of species.

Posidonia protects the coastline

Seagrass leaves absorb nutrients and slow the flow of water, capturing sand, dirt and silt particles. Their roots trap and stabilize the sediment. These processes help improve water clarity and quality, and reduce coastal erosion, as well as functioning as a buffer against storms.

Posidonia protects the coastline

Seagrass leaves absorb nutrients and slow the flow of water, capturing sand, dirt and silt particles. Their roots trap and stabilize the sediment. These processes help improve water clarity and quality, and reduce coastal erosion, as well as functioning as a buffer against storms.

Posidonia mitigates the effects of climate change

Posidonia meadows, like other seagrass meadows, are considered Blue Carbon ecosystems due to their capacity to store and fix carbon dioxide from the atmosphere. LIke terrestrial plants, Posidonia absorbs carbon from the surrounding environment to grow its leaves and roots. When parts of the plants and associated organisms die and decay, they are buried under the seafloor and trapped in the sediment for centuries.

Posidonia mitigates the effects of climate change

Posidonia meadows, like other seagrass meadows, are considered Blue Carbon ecosystems due to their capacity to store and fix carbon dioxide from the atmosphere. LIke terrestrial plants, Posidonia absorbs carbon from the surrounding environment to grow its leaves and roots. When parts of the plants and associated organisms die and decay, they are buried under the seafloor and trapped in the sediment for centuries.

Wow! You've completed the challenge!
Now you can officially call yourself Poseidon!

Discover what Save the Wave has done so far to regenerate Posidonia meadows

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Discover Save the Wave actions

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Tell the story of Posidonia

Media kit

Tell the story of Posidonia

Are you a journalist, author, storyteller, or copywriter? Help us spread the word! Join our mission to make Posidonia exciting, engaging, and inspiring. Together, we can advocate for its preservation and raise awareness about this incredible marine plant.

Media kit

Tell the story of Posidonia

Are you a journalist, author, storyteller, or copywriter? Help us spread the word! Join our mission to make Posidonia exciting, engaging, and inspiring. Together, we can advocate for its preservation and raise awareness about this incredible marine plant.

Media kit

Collaborate with Save the Wave

Collaborate with us!

Collaborate with Save the Wave

Ready to make a real impact? Discover all the ways you can collaborate with us in our mission to regenerate Posidonia meadows across the Mediterranean Sea.

Collaborate with us!

Collaborate with Save the Wave

Ready to make a real impact? Discover all the ways you can collaborate with us in our mission to regenerate Posidonia meadows across the Mediterranean Sea.

Collaborate with us!
References
References

Contact us

Discover how to contribute and become part of the Save the Wave project. We collaborate with companies, research centers, universities, organizations, journalists and media, and citizens to drive the change we need for a healthy ocean.

Save The Wave is a project of

Contact us

Discover how to contribute and become part of the Save the Wave project. We collaborate with companies, research centers, universities, organizations, journalists and media, and citizens to drive the change we need for a healthy ocean.

Save The Wave is a project of