D
Dimitris Poursanidis
Researcher
1
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Sep 15, 2026
🌿 Posidonia oceanica: The Queen of the Mediterranean
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Dimitris PoursanidisGUEST
So this mat has become thicker and thicker, and the thicker the mat it is, the more carbon stocks there are.

Dimitris PoursanidisGUEST
So you have the living biomass, the leaves, but then this go down to the root system and build mat.

Dimitris PoursanidisGUEST
And to understand how big this can be, we have a lot of cases in the west Mediterranean where the exposed mat because of a thunderstorm or other, uh, anthropogenic factor has broke, and you can go diving, and you have a five-meter wall And you see this millennia wall that has been built upon.

Dimitris PoursanidisGUEST
And this is the very important thing to preserve because it is the history of the habitat.

Dimitris PoursanidisGUEST
And by that, Posidonia is the queen again also for the carbon, uh, in terms of stocks, how much we have already there, and also the accumulation rate, how much carbon is added every year in the meadow per unit area.

Dimitris PoursanidisGUEST
However, not all seagrass are equal because we have other species in Europe and beyond that are ephemeral, appear and disappear because of the life cycle, because of the local conditions, or are there, but the contribution to the carbon stocks is not that significant, or it's very minor.
11 MINS LATER
