Guidelines for the selection of biological SSSIs. Part 2: Detailed guidelines for habitats and species groups. Chapter 1b: Marine intertidal and shallow subtidal habitats
Brazier, D.P.; Hiorns, N.; Kirkham, E.; Singfield, C.; Street, M.; Steel, L.; Kent, F. (2019). Guidelines for the selection of biological SSSIs. Part 2: Detailed guidelines for habitats and species groups. Chapter 1b: Marine intertidal and shallow subtidal habitats. (2019 revision, v1.0). Joint Nature Conservation Committee: Peterborough. 49 pp.