Articles | Volume 19, issue 20
https://doi.org/10.5194/bg-19-4903-2022
https://doi.org/10.5194/bg-19-4903-2022
Research article
 | 
19 Oct 2022
Research article |  | 19 Oct 2022

Upper-ocean flux of biogenic calcite produced by the Arctic planktonic foraminifera Neogloboquadrina pachyderma

Franziska Tell, Lukas Jonkers, Julie Meilland, and Michal Kucera

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Short summary
This study analyses the production of calcite shells formed by one of the main Arctic pelagic calcifiers, the foraminifera N. pachyderma. Using vertically resolved profiles of shell concentration, size and weight, we show that calcification occurs throughout the upper 300 m with an average production flux below the calcification zone of 8 mg CaCO3 m−2 d−1 representing 23 % of the total pelagic biogenic carbonate production. The production flux is attenuated in the twilight zone by dissolution.
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