Decreasing marine biogenic calcification: A negative feedback on rising atmospheric p CO 2
Open accessAbstract
In laboratory experiments with the coccolithophore species Emiliania huxleyi and Gephyrocapsa oceanica , the ratio of particulate inorganic carbon (PIC) to particulate organic carbon (POC) production decreased with increasing CO 2 concentration ([CO 2 ]). This was due to both reduced PIC and enhanced POC production at elevated [CO 2 ]. Carbon dioxide concentrations covered a range from a preindustrial level to a value predicted for 2100 according to a “business as usual” anthropogenic CO 2 emission scenario. The laboratory results were used to employ a model in which the immediate effect of a decrease in global marine calcification relative to POC production on the potential capacity for oceanic CO 2 uptake was simulated. Assuming that overall marine biogenic calcification shows a similar response as obtained for E. huxleyi or G. oceanica in the present study, the model reveals a negative feedback on increasing atmospheric CO 2 concentrations owing to a decrease in the PIC/POC ratio.
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Important feedback may exist between CO2 and marine carbonate production.
“Important feedback may also exist between CO 2 and marine carbonate production.”
From Regulation of atmospheric CO <sub>2</sub> by deep‐sea sediments in an Earth system model (2007) · cites this paper as Zondervan et al., 2001
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- Authors
- Zondervan, I., Zeebe, R. E., Rost, B., & Riebesell, U.
- Affiliations
- Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (DE)
- Venue
- Global Biogeochemical Cycles
- Publisher
- American Geophysical Union (AGU)
- Published
- 2001-06
- Volume
- 15
- Issue
- 2
- Pages
- 507-516
- ISSN
- 0886-6236 (ISSN-L)
- 1944-9224
- OpenAlex
- W2060097988
- Cited by
- 332
- References
- 52
- Citations by year
- 2026: 5 · 2025: 7 · 2024: 9 · 2023: 9 · 2022: 12 · 2021: 7 · 2020: 7 · 2019: 7 · 2018: 8 · 2017: 9 · 2016: 15 · 2015: 15 · 2014: 14 · 2013: 16 · 2012: 20
- FWCI
- 10.03
- Type
- journal article
- Language
- en
- Open access
- green
- oceanrep.geomar.de
- Licence
- Locations
- Global Biogeochemical Cycles (publishedVersion)
- Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut) (acceptedVersion)
- Helmholtz Centre for Ocean Research Kiel (GEOMAR) (acceptedVersion, other-oa)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Ocean Acidification Effects and Responses
- Physical Sciences › Materials Science › Biomaterials › Calcium Carbonate Crystallization and Inhibition
- Keywords
- Emiliania huxleyi, Gephyrocapsa oceanica, coccolithophores, particulate inorganic carbon, particulate organic carbon, elevated CO2, ocean carbon uptake, negative feedback, ocean acidification, coccolith dissolution, carbon cycle modeling
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