(b) TaqI digestion of SSUrRNA genes. Clade ‘C’ standard (lane 1); clade ‘D’ standard (lane 2); algae from different Pa. gigantea colonies transplanted from 10 to 3 m after 1 year (lanes 3– 5); algae from Pa. gigantea found at 1.2 m depth (lane 6); and at 13.0 m depth (lane 7).