Bienhold, Christina: Surface sediment chloroplastic pigments from Polarstern expedition PS138 to the Central Arctic Ocean during August-September 2023 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995156 (dataset in review)
Abstract:
Undisturbed sediment samples were obtained with a TV-guided multiple corer (TV-MUC). Upon retrieval of the MUC, the overlying water was carefully removed from each core and the upper few centimeters of sediment were cut using a steel plate and a custom-made plastic ring into the following depth horizons: 0-1 cm, 1-5 cm, 5-10 cm. For each sediment horizon, 5 biological replicates were obtained. Chloroplastic pigments were extracted from 1 ml sediment with 3x8 ml acetone (90%), including the addition of glass beads and grinding of the samples in a cell mill Boetius and Damm (1998, doi:10.1016/S0967-0637(97)00052-6). Samples were centrifuged and chlorophyll a and phaeopigment (after addition of 30 μl 20% HCl) concentrations were determined in the supernatant by fluorometric measurement with a Turner Trilogy fluorometer with the "Chlorophyll a Acidification" fluorescence module. Chlorophyll a and phaeopigment concentrations were calculated according to Bienhold et al. 2022 (doi:10.3389/fmars.2022.1004959). Chloroplastic pigment equivalents (CPE) are calculated as the sum of chlorophyll a and phaeopigment concentrations.
Related to:
Boetius, Antje; Bienhold, Christina (2024): The Expedition PS138 of the Research Vessel POLARSTERN to the Arctic Ocean in 2023. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 788, 288 pp, https://doi.org/10.57738/BzPM_0788_2024
References:
Bienhold, Christina; Schourup-Kristensen, Vibe; Krumpen, Thomas; Nöthig, Eva-Maria; Wenzhöfer, Frank; Korhonen, Meri; Vredenborg, Myriel; Hehemann, Laura; Boetius, Antje (2022): Effects of sea ice retreat and ocean warming on the Laptev Sea continental slope ecosystem (1993 vs 2012). Frontiers in Marine Science, 9, 1004959, https://doi.org/10.3389/fmars.2022.1004959
Boetius, Antje; Damm, Ellen (1998): Benthic oxygen uptake, hydrolytic potentials and microbial biomass at the Arctic continental slope. Deep Sea Research Part I: Oceanographic Research Papers, 45(2-3), 239-275, https://doi.org/10.1016/S0967-0637(97)00052-6
Coverage:
Median Latitude: 85.935772 * Median Longitude: 84.234851 * South-bound Latitude: 82.908155 * West-bound Longitude: 31.548253 * North-bound Latitude: 89.945032 * East-bound Longitude: 130.170545
Date/Time Start: 2023-08-09T18:21:23 * Date/Time End: 2023-09-18T23:05:43
Minimum Elevation: -4374.0 m * Maximum Elevation: -3726.0 m
Event(s):
PS138_15-1 * Latitude Start: 84.037314 * Longitude Start: 31.548253 * Latitude End: 84.023533 * Longitude End: 31.849000 * Date/Time Start: 2023-08-09T18:21:23 * Date/Time End: 2023-08-09T21:44:56 * Elevation Start: -3992.0 m * Elevation End: -3991.0 m * O2A Registry URI: hdl:10013/sensor.5913e741-27df-4bf4-b77b-18787119bc8d * Campaign: PS138 (ArcWatch-1) * Basis: Polarstern * Method/Device: Multicorer with television (TVMUC) * Comment: IceStation #1
PS138_35-1 * Latitude Start: 84.918369 * Longitude Start: 80.248855 * Latitude End: 84.909741 * Longitude End: 80.239592 * Date/Time Start: 2023-08-15T23:47:20 * Date/Time End: 2023-08-16T03:37:35 * Elevation Start: -3736.0 m * Elevation End: -3734.0 m * O2A Registry URI: hdl:10013/sensor.5913e741-27df-4bf4-b77b-18787119bc8d * Campaign: PS138 (ArcWatch-1) * Basis: Polarstern * Method/Device: Multicorer with television (TVMUC) * Comment: IceStation #2
PS138_59-1 * Latitude Start: 84.690446 * Longitude Start: 107.306687 * Latitude End: 84.688536 * Longitude End: 107.307584 * Date/Time Start: 2023-08-20T15:30:05 * Date/Time End: 2023-08-20T18:30:42 * Elevation Start: -3726.0 m * Elevation End: -3731.0 m * O2A Registry URI: hdl:10013/sensor.5913e741-27df-4bf4-b77b-18787119bc8d * Campaign: PS138 (ArcWatch-1) * Basis: Polarstern * Method/Device: Multicorer with television (TVMUC) * Comment: IceStation #3
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 | Replicate, biological | Repl bio | Bienhold, Christina | |||
| 7 | Depth, sediment/rock, top/minimum | Depth sed top | m | Bienhold, Christina | ||
| 8 | Depth, sediment/rock, bottom/maximum | Depth sed bot | m | Bienhold, Christina | ||
| 9 | Chlorophyll a | Chl a | µg/cm3 | Bienhold, Christina | Laboratory fluorometer, Turner Designs, Trilogy | |
| 10 | Phaeopigments | Phae | µg/cm3 | Bienhold, Christina | Laboratory fluorometer, Turner Designs, Trilogy | |
| 11 | Comment | Comment | Bienhold, Christina |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
786 data points