Why is it good that the beaches of Denia are algae?

The vast majority hate them, but you should know that the fact that beaches of Dénia have had tons of algae in the sand these days ago is a bioindicator of the quality of coastal marine waters.

These algae that many bother when taking bath are, posidonia Oceanica, An endemic Mediterranean plants whose seagrasses have a remarkable ecological importance. Posidonia is the climax community the Mediterranean Sea, one of the most important ecosystems of our sea.

Posidonia Oceanica grasslands are found only in the Mediterranean Sea. Inside live animal organisms and plants that provide food and protection, making them a key species of the coastal marine ecosystem.

Furthermore, the presence of masses of decomposing leaves in the beach sand is of great importance in the protection of beaches against erosion as damping waves performed by the layer of dead leaves on the beaches protects especially during the winter storms.

Posidonia plays a key role in the coastal ecosystem for several reasons: consolidating funds costs and helps counteract excessive sediment transport due to coastal currents; It acts as a barrier, diminishing the strength of the currents and the waves and preventing coastal erosion, and produce and export biomass in both neighboring ecosystems and depth.

Year after year, the seagrass meadows enter a greater risk of regression. His disappearance has negative effects not only on the Posidonia ecosystem but also in other ecosystems. Just think that the loss of a single linear meter of meadow can lead to the disappearance of several meters of beach due to erosion phenomena. In addition, regression of grasslands leads to a loss of biodiversity and deterioration of water quality.

The ecological importance of the Posidonia is such that in 1999 existing grasslands in the Ses Salines Natural Park, between Ibiza and Formentera, were declared a World Heritage Site by UNESCO.