1. Anon., 1979. Council of the European Communities Directive on the Quality Required of Shellfish Waters, 30 October 1979. 79/923/EEC, OJL 281 10 November 1979.
2. Anon., 1998. http://www.epa.gov/EPA-WATER/1998/December/Day-10/w30272.htm.
3. Anon., 2000. OSPAR Commission 2000. Quality Status Report 2000: Region IV-Bay of Biscay and Iberian Coast. OSPAR Commission, London. 134 pp.
4. Anon., 2001. Lei 8/2001, do 2 de agosto, de protección da calidade das augas das rías de Galicia. Diario Of. Galicia (161), 11160–11168 (Martes 21 de agosto de 2001).
5. Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae;Beiras;Mar. Ecol., Prog. Ser.,1994