The underwater posidonia meadows are among the most productive marine ecosystems of the Mediterranean. They host more than 1300 species of fauna and flora, among them many fish of fishery importance. It releases valuable oxygen, and therefore limits the effects of climate change. Poseidon’s grass is precious, but under constant threat.
Paradoxically, it is precisely the pristine nature of Poros that is marking its future: the absence of large production or tourist activities was considered by the Greek authorities a criterion for including the island in a list of allocated zones for the expansion of industrial fish farming.
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