Articles | Volume 16, issue 18
https://doi.org/10.5194/bg-16-3621-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-16-3621-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Isotopic fractionation of carbon during uptake by phytoplankton across the South Atlantic subtropical convergence
School of GeoSciences, University of Edinburgh, Edinburgh, UK
Raja S. Ganeshram
School of GeoSciences, University of Edinburgh, Edinburgh, UK
Matthew P. Humphreys
Ocean and Earth Science, University of Southampton, Southampton, UK
now at: School of Environmental Sciences, University of East
Anglia, Norwich, UK
Thomas J. Browning
Department of Earth Sciences, University of Oxford, Oxford, UK
now at: GEOMAR Helmholtz Centre for Ocean Research, Kiel,
Germany
Heather Bouman
Department of Earth Sciences, University of Oxford, Oxford, UK
Alexander P. Piotrowski
School of Geosciences, University of Cambridge, Cambridge, UK
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- Incorporating the stable carbon isotope <sup>13</sup>C in the ocean biogeochemical component of the Max Planck Institute Earth System Model B. Liu et al. 10.5194/bg-18-4389-2021
- Temperature is a better predictor of stable carbon isotopic compositions in marine particulates than dissolved CO2 concentration Q. Liu et al. 10.1038/s43247-022-00627-y
- Bivalve tissues as a recorder of multidecadal global anthropogenic and climate‐mediated change in coastal areas C. Liénart et al. 10.1002/lol2.10399
- A Circum‐Antarctic Plankton Isoscape: Carbon Export Potential Across the Summertime Southern Ocean L. Stirnimann et al. 10.1029/2023GB007808
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10 citations as recorded by crossref.
- Proteinaceous Corals Reveal Heterogeneity in Shifting Southern California Oceanographic Regimes B. Williams et al. 10.1016/j.marenvres.2025.106954
- Description of a global marine particulate organic carbon-13 isotope data set M. Verwega et al. 10.5194/essd-13-4861-2021
- Incorporating the stable carbon isotope <sup>13</sup>C in the ocean biogeochemical component of the Max Planck Institute Earth System Model B. Liu et al. 10.5194/bg-18-4389-2021
- Temperature is a better predictor of stable carbon isotopic compositions in marine particulates than dissolved CO2 concentration Q. Liu et al. 10.1038/s43247-022-00627-y
- Bivalve tissues as a recorder of multidecadal global anthropogenic and climate‐mediated change in coastal areas C. Liénart et al. 10.1002/lol2.10399
- A Circum‐Antarctic Plankton Isoscape: Carbon Export Potential Across the Summertime Southern Ocean L. Stirnimann et al. 10.1029/2023GB007808
- Stable Carbon Isotopes of Phytoplankton as a Tool to Monitor Anthropogenic CO2 Submarine Leakages F. Relitti et al. 10.3390/w12123573
- Ecosystem shifts inferred from long-term stable isotope analysis of male Antarctic fur seal Arctocephalus gazella teeth R. de Lima et al. 10.3354/meps14112
- Using geostatistical analysis for simultaneous estimation of isoscapes and ontogenetic shifts in isotope ratios of highly migratory marine fish J. Matsubayashi et al. 10.3389/fmars.2022.1049056
- Seasonal cycles of biogeochemical fluxes in the Scotia Sea, Southern Ocean: a stable isotope approach A. Belcher et al. 10.5194/bg-20-3573-2023
1 citations as recorded by crossref.
Latest update: 21 Jan 2025
Short summary
The carbon isotopes in algae can be used to predict food sources and environmental change. We explore how dissolved carbon is taken up by algae in the South Atlantic Ocean and how this affects their carbon isotope signature. We find that cell size controls isotope fractionation. We use our results to investigate how climate change may impact the carbon isotopes in algae. We suggest a shift to smaller algae in this region would decrease the carbon isotope ratio at the base of the food web.
The carbon isotopes in algae can be used to predict food sources and environmental change. We...
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