There are more than 450 seaweeds. For certains, Corsica constitutes the only zone of mediterranean predilection. Do not go believing that this profusion throws off balance the environment. Every age brackets are represented there. In the sublittoral level , the most favorable to sea environmet's life, the changings of temperature and of salinity are moderate.
Life harmonously develops there.
Nothing hinders the photosynthesis of vegetals, animals find there their food, and the food chain, so complex it is, can set up. Far lower down , from thirty and toward forty metres, it is the circalittoral level, the paradise of the divers.