Description of the 14 sampling positions, and their associated variables, that were sampled for coverage of the barnacle Austrominius modestus on each of the 100 statues at Crosby Beach, Liverpool.

Under the index of rugosity, higher values indicate a greater level of complexity with 1 being a flat surface; direction describes the direction in which each sampling position faced: sea, shore, north and south; and exposure was assessed according to whether or not the sampling position was sheltered by another body part.