Articles | Volume 22, issue 9
https://doi.org/10.5194/bg-22-2261-2025
https://doi.org/10.5194/bg-22-2261-2025
Research article
 | 
14 May 2025
Research article |  | 14 May 2025

The distribution and abundance of planktonic foraminifera under summer sea ice in the Arctic Ocean

Flor Vermassen, Clare Bird, Tirza M. Weitkamp, Kate F. Darling, Hanna Farnelid, Céline Heuzé, Allison Y. Hsiang, Salar Karam, Christian Stranne, Marcus Sundbom, and Helen K. Coxall

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Cited articles

Bé, A. W.: Some observations on arctic planktonic foraminifera, Contribution from the Cushman Foundation for Foraminiferal Research, 11, 64–68, 1960. 
Berger, W. H.: Ecologic patterns of living planktonic foraminifera, in: Deep Sea Research and Oceanographic Abstracts, 1–24, 1969. 
Boltovskoy, E.: Patchiness in the distribution of planktonic foraminifera, in: Proceedings of the 2. Planktonic Conference, Ed. Tecnoscienza, Rome, Italy, 107–115, https://oceanrep.geomar.de/id/eprint/34598 (last access: 1 January 2023​​​​​​​), 1971. 
Brandt, S., Wassmann, P., and Piepenburg, D.: Revisiting the footprints of climate change in Arctic marine food webs: An assessment of knowledge gained since 2010, Front. Mar. Sci., 10, 1–17, https://doi.org/10.3389/fmars.2023.1096222, 2023. 
Carstens, J. and Wefer, G.: Recent distribution of planktonic foraminifera in the Nansen Basin, Arctic Ocean, Deep-Sea Res., 39, 507–524, 1992. 
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Short summary
We provide the first systematic survey of planktonic foraminifera in the high Arctic Ocean. Our results describe the abundance and species composition under summer sea ice. They indicate that the polar specialist N. pachyderma is the only species present, with subpolar species absent. The data set will be a valuable reference for continued monitoring of the state of planktonic foraminifera communities as they respond to the ongoing sea-ice decline and the “Atlantification” of the Arctic Ocean.
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