The Nerja Scuba Divers Club has warned that the Poseidonia sea meadows in the Maro-Cerro Gordo are disappearing at an alarming rate as a result of trawl fishing and last September’s floods. They said the grass covered the sea bed in the area eight years ago but barely forty square metres remain now. The Poseidonia meadows are vital for the sea’s health. They are the largest marine producers of oxygen and biomass and one of the most diverse marine communities, with more than 1000 associated species of algae, invertebrates and fishes. They roots control the flow of the sediments and their leaves lessen the strength of the waves. As a result, they not only protect marine biodiversity, but they also protect the shores against erosion.


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