Balanus balanus found at depths of up to and grows on bedrock, boulders, pebbles and shells. It seems to favour habitats with strong currents and when overcrowding occurs, adopts different shapes to fit the space available. It is often found growing alongside another barnacle, "Balanus crenatus". Other species often found in its vicinity include "Tubularia larynx", "Obelia geniculata", "Pomatoceros triqueter", "Pecten maximus", "Hydroides norvegica", "Chlamys opercularis" and "Sertularia" species. Coralline algae was often present as were the whelk, the European edible sea urchin ("Echinus esculentus"), the great spider crab ("Hyas araneus") and the shore crab ("Carcinus maenas"). The main predator is the
Roger Turner (garden designer) Roger Turner (garden designer) Roger Turner is a British garden designer and writer of gardening-related non-fiction books. He trained as an architect, and now practises as a garden designer in Gloucestershire. He lectures widely on garden subjects, and is the author of several gardening books. Turner has given talks in the UK, Ireland and the US on a wide range of gardening subjects, specialising in perennials of all kinds, garden design and garden history. He trained as an architect and now works as a landscape designer. He is a knowledgeable plantsman, active in the Hardy Plant Society, and a founding