Marine, intertidal, artificial, exposed, eulittoral

Artificial surfaces on the shoreline are common near most areas of human activity, as docks, breakwaters, seawalls, and other constructed habitats. There are relatively few such structures in truly wave-exposed areas. Biological communities on these surfaces are likely to be a subset of those on nearby rocky shores, although the presence of creosote or other anti-fouling chemicals may greatly restrict abundance and diversity of species that can survive there.