Ecological characteristics :
The archipelago has a wealth of land and water, including the abundance of the following key habitats:
- Posidonia oceanica and Cymodocea nodosa meadows
- Small rocky bottoms including brown algae.
- Photophilic seaweed (Cystoseira spp. Sargassum vulgare)
- Sciaphilic seaweed in calm mode (Faciès Flavellina petiolata and Peyssonnelia squamaria)
- Coralligenous biocoenoses (based on Corallinacae)
The rocky bottoms and herbariums of La Galite phanerogams are very rich in fauna and present a large number of species of sponges, cnidarians, molluscs, bryozoans, echinoderms, ascidiaceans and fish.