Figure 5 from: Glover A, Dahlgren T, Taboada S, Paterson G, Wiklund H, Waeschenbach A, Cobley A, Martínez P, Kaiser S, Schnurr S, Khodami S, Raschka U, Kersken D, Stuckas H, Menot L, Bonifacio P, Vanreusel A, Macheriotou L, Cunha M, Hilário A, Rodrigues C, Colaço A, Ribeiro P, Błażewicz M, Gooday A, Jones D, Billett D, Goineau A, Amon D, Smith C, Patel T, McQuaid K, Spickermann R, Brager S (2016) The London Workshop on the Biogeography and Connectivity of the Clarion-Clipperton Zone. Research Ideas and Outcomes 2: e10528. https://doi.org/10.3897/rio.2.e10528

Figure 5 - The BGR-Germany polymetallic nodule exploration claim area in the eastern CCZ, illustrating the two areas in which survey work has concentrated in recent years - the proposed preservation reference area (PRA) and impact reference area (IRA). Image source: Federal Institute for Geosciences and Natural Resources (BGR, Germany) and Pedro Martinez, Senckenberg Institute (Rühlemann et al. 2011).