Crossplots of Sr/Ca and Mg/Ca ratios vs isotope values measured on shell carbonate.

• 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; Ocean acidification
• Online Access: https://doi.org/10.1371/journal.pone.0277666.g004

Error bars are 2 standard deviation instrumental precision for isotope values and the 5% RSD propagated to the elemental ratios. A) δ 44/40 Ca vs Mg/Ca, B) δ 44/40 Ca vs Sr/Ca, C) δ 13 C shell vs Mg/Ca, D) δ 13 C shell vs Sr/Ca, E) δ 18 O shell vs Mg/Ca, F) δ 18 O shell vs Mg/Ca, G) δ 15 N vs Mg/Ca, H) δ 15 N vs Sr/Ca, I) δ 13 C org vs Mg/Ca, and J) δ 13 C org vs Sr/Ca. The cenote and historical samples distinctly differ along Mg/Ca, Sr/Ca, δ 15 N, δ 13 C org , and δ 44/40 Ca axes.