Map showing the sample collection location and major currents surrounding New Caledonia.

• Main Authors: Benjamin J. Linzmeier (2622280), Andrew D. Jacobson (3321963), Bradley B. Sageman (8874536), Matthew T. Hurtgen (8869463), Meagan E. Ankney (14307606), Andrew L. Masterson (7106753), Neil H. Landman (6875177)
• Format: Still Image
• Language: unknown
• Published: 2022
• Subjects: Genetics; Molecular Biology; Biotechnology; Evolutionary Biology; Ecology; Developmental Biology; Cancer; Inorganic Chemistry; Science Policy; Infectious Diseases; Plant Biology; Environmental Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; molluscan biomineralization processes; last 130 years; decreasing oxygen concentration; scale paleoecological reconstructions; oxygen isotope equilibrium; div >< p; 40 </ sup; 18 </ sup; 15 </ sup; 13 </ sup; nautilus macromphalus </; others given variability; increasing atmospheric co; affect geochemical change; shell using δ; p </; nautilus </; scale change; spirula </; sepia </; isotope systematics; geochemical response; shock response; shell chemistry; sampling strategy; questions remain; ocean acidification; new caledonia; model organisms; less well; individuals inhabited; eutrophication offshore; environmental changes; easily preserved; data suggest; data hinges; complex ecology; Nautilus; Pacific; Ocean acidification
• Online Access: https://doi.org/10.1371/journal.pone.0277666.g002

A) World map showing the location of New Caledonia in the Southwestern Pacific Ocean. B) Local map showing New Caledonia and the surrounding islands with a star indicating the location of the cenote. Water shallower than 1000 m is in light blue and approximates the habitat of N. macromphalus . around New Caledonia. All cenote specimens are from the star location of Lifou, Loyalty Islands [ 34 ]. All other specimens were collected near the large island and are recent museum specimens. Reliable accounts of the live collection of N . macromphalus are mostly known from areas close to New Caledonia, and the species is thought to have a geographic range restricted to that region [ 35 ]. Local currents are overlain for reference [ 36 ].