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- W4313203790 endingPage "e0277666" @default.
- W4313203790 startingPage "e0277666" @default.
- W4313203790 abstract "Cephalopod carbonate geochemistry underpins studies ranging from Phanerozoic, global-scale change to outcrop-scale paleoecological reconstructions. Interpreting these data hinges on assumed similarity to model organisms, such as Nautilus, and generalization from other molluscan biomineralization processes. Aquarium rearing and capture of wild Nautilus suggest shell carbonate precipitates quickly (35 μm/day) in oxygen isotope equilibrium with seawater. Other components of Nautilus shell chemistry are less well-studied but have potential to serve as proxies for paleobiology and paleoceanography. To calibrate the geochemical response of cephalopod δ15Norg, δ13Corg, δ13Ccarb, δ18Ocarb, and δ44/40Cacarb to modern anthropogenic environmental change, we analyzed modern, historical, and subfossil Nautilus macromphalus from New Caledonia. Samples span initial human habitation, colonialization, and industrial pCO2 increase. This sampling strategy is advantageous because it avoids the shock response that can affect geochemical change in aquarium experiments. Given the range of living depths and more complex ecology of Nautilus, however, some anthropogenic signals, such as ocean acidification, may not have propagated to their living depths. Our data suggest some environmental changes are more easily preserved than others given variability in cephalopod average living depth. Calculation of the percent respired carbon incorporated into the shell using δ13Corg, δ13Ccarb, and Suess-effect corrected δ13CDIC suggests an increase in the last 130 years that may have been caused by increasing carbon dioxide concentration or decreasing oxygen concentration at the depths these individuals inhabited. This pattern is consistent with increasing atmospheric CO2 and/or eutrophication offshore of New Caledonia. We find that δ44/40Ca remains stable across the last 130 years. The subfossil shell from a cenote may exhibit early δ44/40Ca diagenesis. Questions remain about the proportion of dietary vs ambient seawater calcium incorporation into the Nautilus shell. Values of δ15N do not indicate trophic level change in the last 130 years, and the subfossil shell may show diagenetic alteration of δ15N toward lower values. Future work using historical collections of Sepia and Spirula may provide additional calibration of fossil cephalopod geochemistry." @default.
- W4313203790 created "2023-01-06" @default.
- W4313203790 creator A5012944180 @default.
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- W4313203790 creator A5069890231 @default.
- W4313203790 date "2022-12-28" @default.
- W4313203790 modified "2023-09-30" @default.
- W4313203790 title "Isotope systematics of subfossil, historical, and modern Nautilus macromphalus from New Caledonia" @default.
- W4313203790 cites W133238704 @default.
- W4313203790 cites W173549944 @default.
- W4313203790 cites W1924968197 @default.
- W4313203790 cites W1965094192 @default.
- W4313203790 cites W1965539609 @default.
- W4313203790 cites W1971654729 @default.
- W4313203790 cites W1974737266 @default.
- W4313203790 cites W1980933736 @default.
- W4313203790 cites W1982829937 @default.
- W4313203790 cites W1984267086 @default.
- W4313203790 cites W1994027801 @default.
- W4313203790 cites W1999413949 @default.
- W4313203790 cites W2000159023 @default.
- W4313203790 cites W2005237573 @default.
- W4313203790 cites W2009980413 @default.
- W4313203790 cites W2011628060 @default.
- W4313203790 cites W2012804707 @default.
- W4313203790 cites W2014796857 @default.
- W4313203790 cites W2017594493 @default.
- W4313203790 cites W2022286459 @default.
- W4313203790 cites W202772167 @default.
- W4313203790 cites W2028311922 @default.
- W4313203790 cites W2032780236 @default.
- W4313203790 cites W2036019626 @default.
- W4313203790 cites W2044871718 @default.
- W4313203790 cites W2046246562 @default.
- W4313203790 cites W2047147818 @default.
- W4313203790 cites W2049115361 @default.
- W4313203790 cites W2058263979 @default.
- W4313203790 cites W2059262314 @default.
- W4313203790 cites W2060308135 @default.
- W4313203790 cites W2063857297 @default.
- W4313203790 cites W2065434200 @default.
- W4313203790 cites W2075273043 @default.
- W4313203790 cites W2076506737 @default.
- W4313203790 cites W2077721620 @default.
- W4313203790 cites W2078462482 @default.
- W4313203790 cites W2082757499 @default.
- W4313203790 cites W2094207113 @default.
- W4313203790 cites W2098446663 @default.
- W4313203790 cites W2105937643 @default.
- W4313203790 cites W2109506212 @default.
- W4313203790 cites W2112267421 @default.
- W4313203790 cites W2113297575 @default.
- W4313203790 cites W2118513051 @default.
- W4313203790 cites W2120473822 @default.
- W4313203790 cites W2126608114 @default.
- W4313203790 cites W2141518752 @default.
- W4313203790 cites W2145187788 @default.
- W4313203790 cites W2157428270 @default.
- W4313203790 cites W2163205899 @default.
- W4313203790 cites W2168079861 @default.
- W4313203790 cites W2170009085 @default.
- W4313203790 cites W2172451179 @default.
- W4313203790 cites W2173001546 @default.
- W4313203790 cites W2216010105 @default.
- W4313203790 cites W2328818147 @default.
- W4313203790 cites W2337910491 @default.
- W4313203790 cites W2395962424 @default.
- W4313203790 cites W2419624231 @default.
- W4313203790 cites W2461684266 @default.
- W4313203790 cites W2471907175 @default.
- W4313203790 cites W2482438892 @default.
- W4313203790 cites W2493342852 @default.
- W4313203790 cites W2515706791 @default.
- W4313203790 cites W2525660799 @default.
- W4313203790 cites W2588800589 @default.
- W4313203790 cites W2588876007 @default.
- W4313203790 cites W2591776397 @default.
- W4313203790 cites W2592858680 @default.
- W4313203790 cites W2598178819 @default.
- W4313203790 cites W2620476633 @default.
- W4313203790 cites W2770055263 @default.
- W4313203790 cites W2770312530 @default.
- W4313203790 cites W2775059338 @default.
- W4313203790 cites W2782996641 @default.
- W4313203790 cites W2788474355 @default.
- W4313203790 cites W2790990289 @default.
- W4313203790 cites W2792151853 @default.
- W4313203790 cites W2808207661 @default.
- W4313203790 cites W2811242434 @default.
- W4313203790 cites W2866268768 @default.
- W4313203790 cites W2886555074 @default.
- W4313203790 cites W2891919456 @default.
- W4313203790 cites W2908658318 @default.
- W4313203790 cites W2913556021 @default.