Published

X-ray micro-CT - Foraminifera Version 67

Daniel Francois (Royal Netherlands Institute for Sea Research) Royal Netherlands Institute for Sea Research https://doi.org/10.25850/nioz/7b.b.4k

Marine calcification is commonly expected to decline under future ocean acidification, yet the extent to which warming will influence this response remains unclear. We report evidence that foraminifera can sustain or enhance calcification across broad pCO₂ (200–1600 ppm), particularly under warming (20–30 °C), increasing carbonate production by up to fourfold at elevated CO2 and temperature conditions. These findings highlight the flexibility with which foraminifera can utilize different carbon sources, allowing them to increasingly benefit from the larger inorganic carbon pool which is available under CO2-induced acidification. Shell density was also evaluated and remained largely unchanged across treatments, indicating that climate-driven responses will mainly be expressed through changes in carbonate turnover rates. These results suggest that temperature can offset the effects of ocean acidification on calcification, with important implications for future marine carbonate production and thereby global carbon cycle feedbacks.

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Field Value
Subject Earth and Environmental Sciences
DAS Code 7b.b.4k
Source https://doi.org/10.25850/nioz/7b.b.4k
Version 67
Creator(s)
Francois, Daniel (Royal Netherlands Institute for Sea Research)
ORCID
Contact the corresponding author
Depositor Daniel do Nascimento Silva (daniel.do.nascimento.silva@nioz.nl)
Publication Date 2026-08-31T18:59:48.3661622
Deposit Date 2026-08-31
Dataset Persistent Identifier DOI:10.25850/nioz/7b.b.4k
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Contributor Royal Netherlands Institute for Sea Research (NIOZ)
Distributor Research Data Management(NIOZ Royal Netherlands Institute for Sea Research)
Distribution Date 2026-08-31
Production Date 2026-08-31
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