Balaguer, Jenna; Koch, Florian; Hassler, Christel S; Trimborn, Scarlett (2021): Phytoplankton species composition under Fe and Mn limitation in the Drake Passage [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.935868
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Abstract:
This study highlights the importance of manganese (Mn) next to iron (Fe) for growth of specific Southern Ocean phytoplankton groups. Two Fe-Mn bottle amendment experiments with two natural phytoplankton communities were performed during Polarstern expedition PS97 in 2016 in the Drake Passage. At two locations, sea water was pumped (using trace metals clean techniques) from 25m depth and used to fill polycarbonate bottles after having passed through a cleaned 200 μm mesh (removing large grazers). The Control treatment was the sampled seawater without any trace metals addition while the other three treatments were enriched with either FeCl3 alone (0.5 nM; +Fe treatment) or MnCl2 alone (1 nM; +Mn treatment) or both trace metals together (+FeMn treatment). All treatments were done in triplicate 2,5L PC bottles. All incubation bottles were maintained at 30 μmol photons m-2 s-1 under a 16:8 (light:dark) hour cycle at 1 ̊C. After on average 15 days, samples for chlorophyll a content, flow cytometry and light macroscopy were taken in order to detect FeMn co-limitation effect on species composition. In addition to the two experiments, 9 in situ stations of PS97 were also sampled for dissolved Fe, dissolved Mn as well as photophysiology and to complete this dataset, data from PS112 (2018) were also used. The results showed that only some members of the phytoplankton community were Fe-Mn co-limited, with the biogeochemical important diatom group Fragilariopsis and one subgroup of picoeukaryotes.
Related to:
Balaguer, Jenna; Koch, Florian; Hassler, Christel S; Trimborn, Scarlett (2022): Iron and manganese co-limit the growth of two phytoplankton groups dominant at two locations of the Drake Passage. Communications Biology, 5(1), 207, https://doi.org/10.1038/s42003-022-03148-8
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -59.898129 * Median Longitude: -62.794750 * South-bound Latitude: -63.643800 * West-bound Longitude: -66.361670 * North-bound Latitude: -58.082670 * East-bound Longitude: -53.942630
Date/Time Start: 2016-03-01T15:27:00 * Date/Time End: 2018-05-02T22:51:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
4 datasets
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Datasets listed in this publication series
- Balaguer, J; Koch, F; Hassler, CS et al. (2021): Chlorophyll a-content of all (total), the small (0.2-2 μm) and the large (> 2 μm) cells determined from the community sampled at station West and East (PS97) before and after exposure to different Fe and Mn availabilities. https://doi.org/10.1594/PANGAEA.935859
- Balaguer, J; Koch, F; Hassler, CS et al. (2021): Picoeukaryote counts determined from the community sampled at station West and East (PS97) before and after exposure to different Fe and Mn availabilities. https://doi.org/10.1594/PANGAEA.935862
- Balaguer, J; Koch, F; Hassler, CS et al. (2021): Concentrations of total dissolved iron (dFe), dissolved manganese (dMn) and chlorophyll a fluorescence determined for 20 in situ stations sampled during PS97 (2016) and PS112 (2018). https://doi.org/10.1594/PANGAEA.935867
- Balaguer, J; Koch, F; Hassler, CS et al. (2021): Phytoplankton species determination and counts determined from the community sampled at station West and East (PS97) before and after exposure to different Fe and Mn availabilities. https://doi.org/10.1594/PANGAEA.935864