Planktonic foraminifera shells retrieved from different stations in the western Fram Strait (Campaign PS93.1), sampling up to 5 depth intervals at each stations. Foraminifera shells were identified to the species level after Brummer and Kucera (2022) and counted. By colouring from rose Bengal, they were divided into cytoplasm-bearing and empty shells. The average shell weight per species and shell type was measured per sample, and the individual shell size (different size parameters) for all shells. This data is supplement to the dissertation from Tell (2023). Part of the data is published in relation to Tell et al., 2023 on PANGAEA (https://doi.pangaea.de/10.1594/PANGAEA.941250), and species counts were also conducted and published by Greco et al. (2022), data likewise available on PANGAEA (https://doi.org/10.1594/PANGAEA.942033).

This research has been supported by the Deutsche Forschungsgemeinschaft (DFG) through the International Research Training Group "Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic" (grant no. IRTG 1904).