Hi, do you know me?
I'm Posidonia!
Dive with us to discover the world of Posidonia
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
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
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
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 many species live and are supported by Posidonia?
A hundred at most
More than one thousand
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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Bring Posidonia to your classroom
Classroom package
Bring Posidonia to your classroom
Are you a teacher or student with a passion for the ocean? Bring Save the Wave to your classroom with our free educational package.
Classroom package
Bring Posidonia to your classroom
Are you a teacher or student with a passion for the ocean? Bring Save the Wave to your classroom with our free educational package.
Classroom package
Play the Posidonia game with your friends and family!
Play the game
Play the Posidonia game with your friends and family!
Let’s talk about the elephant in the room—Posidonia! It’s time this underwater hero gets the attention it deserves. Play the Posidonia game to discover just how important this seagrass is to your life. Fun, educational, and eye-opening—dive in!
Play the game
Play the Posidonia game with your friends and family!
Let’s talk about the elephant in the room—Posidonia! It’s time this underwater hero gets the attention it deserves. Play the Posidonia game to discover just how important this seagrass is to your life. Fun, educational, and eye-opening—dive in!
Play the game
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