The main sites where maerl has been studied in Europe

Studies referred to are as follows: N. Norway (Freiwald, 1995); S. Norway (Foslie, 1894); Brittany, France (J. Cabioch, 1968-1983; L. Cabioch, 1968; Hily et al., 1992); Ria de Vigo (Adey & McKibbin, 1970), Alicante, Spain (BIOMAERL project); Marseilles, France (Huvé, 1956); Corsica (Jacquotte, 1962); Algeria (Feldmann, 1943); Tyrrhenian Sea, Tuscany, Italy (Basso, 1995a, 1995b); Malta (BIOMAERL project).