Posidonia oceanica is the most abundant seagrass species in the Mediterranean. This species forms single species meadows in the Mediterranean bioregion (Peres and Picard 1964, Boudouresque et al. 1990, Short et al. 2007), from the surface to the maximum depth of 45 m. It is common on different types of substrate, from rocks to sand (Bethoux and Copin-Motegut, 1986), except in estuaries where the input of fresh water and fine sediments is high. It is more commonly found on sand.
Posidonia oceanica is a large, long-living but very slow-growing seagrass. Its shoots, which are able to live for at least 30 years, are produced at a slow rate from rhizomes which grow horizontally by only 1-6 cm each year. Over centuries the rhizomes form mats which rise up into reefs that help to trap sediment and mediate the motion of waves, thus clarifying the water and protecting beaches from erosion (Boudouresque et al. 2006).
Posidonia oceanica is the most abundant seagrass species in the Mediterranean. This species forms single species meadows in the Mediterranean bioregion (Peres and Picard 1964, Boudouresque et al. 1990, Short et al. 2007), from the surface to the maximum depth of 45 m. It is common on different types of substrate, from rocks to sand (Bethoux and Copin-Motegut, 1986), except in estuaries where the input of fresh water and fine sediments is high. It is more commonly found on sand.Posidonia oceanica is a large, long-living but very slow-growing seagrass. Its shoots, which are able to live for at least 30 years, are produced at a slow rate from rhizomes which grow horizontally by only 1-6 cm each year. Over centuries the rhizomes form mats which rise up into reefs that help to trap sediment and mediate the motion of waves, thus clarifying the water and protecting beaches from erosion (Boudouresque et al. 2006).
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