(corallina elongata), red calcareous algae on rocks in the splash zone on the island of gozo, malta

plantae eurhodophytina florideophyceae corallinophycidae corallinales corallinaceae corallinoideae corallina flora alga algosociety algology algal plant europe green seaweed photosynthesis oxygen in water oxidation synthesis selfpurification of sea ecology bluegreen macrophytes algobiota algae thickets riparian vegetation eutrophication nature wildlife underwater undersea ecological aquatic wild marine world saltwater seaside environment