Molari, Massimiliano; Wegener, Gunter; Klaembt, Christopher (2025): Incubation results on carbon uptake rates in plume waters collected by CTD from the Lucky B hydrothermal field, R/V Polarstern expedition PS137 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983458
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Published: 2025-10-22 • DOI registered: 2025-11-20
Abstract:
The dataset contains incubation results on carbon uptake rates in water column samples collected by the CTD–water sampler unit while exploring the hydrothermal plumes of the Lucky B site (81°N, Lena Trough) in June–July 2023 during RV Polarstern expedition PS137. Samples include Lucky B's shallow plume (station PS137/061) and reference Arctic seawater (station PS137/018). Specifically, this dataset has 14C-bicarbonate and 3H-leucine uptake rates, indicative of chemoautotrophic and heterotrophic microbial activity. Microbial autotrophic and heterotrophic activities were assessed by applying bicarbonate and leucine incorporation-based methodologies. Rates of dark CO2 fixation and microbial heterotrophic activity were derived following incubation periods of 6 h and 12 h, respectively.
Supplement to:
Albers, Elmar; Genske, Felix; Seewald, Jeffrey S; Walter, Maren; Mette, Jonathan; Wegener, Gunter; Molari, Massimiliano; Klaembt, Christopher; Gallucci, Luigi; Isler, Tea; Boehringer, Lilian; Fitzsimmons, Jessica N; Gunnells, Shelby; Schlindwein, Vera; German, Christopher R (2025): Enigmatic H2- and CH4-rich hydrothermal plumes at the ultramafic-hosted Lucky B site, 81°N on Lena Trough, Arctic Ocean. Scientific Reports, 15(1), 35912, https://doi.org/10.1038/s41598-025-19746-5
Related to:
Microbiome of Arctic hydrothermal plume (2025). National Center for Biotechnology Infomration (NCBI), https://www.ncbi.nlm.nih.gov/bioproject/PRJNA1276466/
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS137_05: Mikrobiologie
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Coverage:
Median Latitude: 81.998122 * Median Longitude: -4.653271 * South-bound Latitude: 81.386584 * West-bound Longitude: -5.886405 * North-bound Latitude: 82.609661 * East-bound Longitude: -3.420138
Date/Time Start: 2023-07-01T01:50:10 * Date/Time End: 2023-07-26T11:52:37
Minimum DEPTH, water: 2877 m * Maximum DEPTH, water: 3200 m
Event(s):
PS137_18-1 * Latitude: 82.609661 * Longitude: -5.886405 * Date/Time: 2023-07-01T01:50:10 * Elevation: -4544.0 m * O2A Registry URI: hdl:10013/sensor.ebd40c0a-11ea-427a-bb89-4b3dd1b5c3b1 * Campaign: PS137 (ALOIS) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO)
PS137_61-1 * Latitude: 81.386584 * Longitude: -3.420138 * Date/Time: 2023-07-26T11:52:37 * Elevation: -3155.0 m * O2A Registry URI: hdl:10013/sensor.ebd40c0a-11ea-427a-bb89-4b3dd1b5c3b1 * Campaign: PS137 (ALOIS) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: Yoyo-CTD
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Date/Time of event | Date/Time | ||||
| 5 | Elevation of event | Elevation | m | |||
| 6 | Bottle number | Bottle | # | Molari, Massimiliano | ||
| 7 | DEPTH, water | Depth water | m | Molari, Massimiliano | Geocode | |
| 8 | Bulk 3H-leucine incorporation rate | Bulk Leu inc | pmol/l/day | Molari, Massimiliano | ||
| 9 | Bicarbonate uptake rate | HCO3 upt | nmol/l | Molari, Massimiliano |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
24 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Date/Time | 5 Elevation [m] | 6 Bottle [#] | 7 Depth water [m] | 8 Bulk Leu inc [pmol/l/day] | 9 HCO3 upt [nmol/l] |
|---|---|---|---|---|---|---|---|---|
| PS137_18-1 | 82.6097 | -5.8864 | 2023-07-01T01:50:10 | -4544 | 12 | 3200 | 0.7 | 0.260 |
| PS137_18-1 | 82.6097 | -5.8864 | 2023-07-01T01:50:10 | -4544 | 12 | 3200 | 1.0 | 0.132 |
| PS137_18-1 | 82.6097 | -5.8864 | 2023-07-01T01:50:10 | -4544 | 12 | 3200 | 0.5 | 0.283 |
| PS137_61-1 | 81.3866 | -3.4201 | 2023-07-26T11:52:37 | -3155 | 8 | 2959 | 1.1 | 3.112 |
| PS137_61-1 | 81.3866 | -3.4201 | 2023-07-26T11:52:37 | -3155 | 8 | 2959 | 1.0 | 2.607 |
| PS137_61-1 | 81.3866 | -3.4201 | 2023-07-26T11:52:37 | -3155 | 8 | 2959 | 2.8 | 1.766 |
| PS137_61-1 | 81.3866 | -3.4201 | 2023-07-26T11:52:37 | -3155 | 16 | 2877 | 2.859 | |
| PS137_61-1 | 81.3866 | -3.4201 | 2023-07-26T11:52:37 | -3155 | 16 | 2877 | 2.523 | |
| PS137_61-1 | 81.3866 | -3.4201 | 2023-07-26T11:52:37 | -3155 | 16 | 2877 | 2.018 |