Remnant kelp bed refugia and future phase-shifts under ocean acidification
Fig 2
Sampling of pH in kelp beds and on sea urchin barrens ground at St. Helens, northeast Tasmania.
Automated SeaPhOx sampling within kelp beds (A and C) and on barrens ground (B); panel (D) shows the sea urchin, Centrostephanus rodgersii, grazing at the edge of a kelp bed (Photographic credit: A, C, D Scott Ling; B Christopher Cornwall).