Bienhold, Christina; Boetius, Antje (2018): Chlorophyll pigments from the Laptev Sea (Arctic Ocean) during POLARSTERN cruise ARK-XXVII/3 from August-September 2012 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.892280
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Abstract:
Sampling was conducted with a TV-guided multiple corer (MUC), in order to retrieve undisturbed sediment cores. Upon retrieval of the MUC, the overlying water was carefully removed from each core and the core was cut into the following sediment horizons using a steel plate and a custom-made plastic ring: 0-1 cm, 1-5 cm, 5-10 cm. At each station, sediment samples from three replicate cores were pooled and transferred to a cooling container (0°C), where subsamples for chloroplastic pigment analyses were taken and processed directly on board.
Chloroplastic pigments were extracted from 1 ml sediment with 3 x 8 ml acetone (90%), including the addition of glass beads and grinding of the samples in a cell mill according to Boetius & Damm 1998 (doi:10.1016/S0967-0637(97)00052-6). Samples were centrifuged and chlorophyll a and phaeopigment (after addition of 250 µl 25% HCl) concentrations were determined in the superanatant by fluorometric measurement with a Turner Trilogy fluorometer. Measurements were performed in triplicate for each sample.
Related to:
Bienhold, Christina (2021): Benthic bacterial diversity along the Laptev Sea continental slope in the Arctic Ocean between two contrasting years (1993 and 2012). insdc:PRJEB43433
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; Bienhold, Christina (2018): Chlorophyll pigment concentrations of Elpidia heckeri gut content collected from Agassiz trawls during POLARSTERN cruise ARK-XXVII/3 (PS80, IceArc). PANGAEA, https://doi.org/10.1594/PANGAEA.895554
Kiesel, Joshua; Bienhold, Christina; Wenzhöfer, Frank; Link, Heike (2020): Variability in Benthic Ecosystem Functioning in Arctic Shelf and Deep-Sea Sediments: Assessments by Benthic Oxygen Uptake Rates and Environmental Drivers. Frontiers in Marine Science, 7, 426, https://doi.org/10.3389/fmars.2020.00426
Project(s):
Funding:
Seventh Framework Programme (FP7), grant/award no. 294757: Assessment of bacterial life and matter cycling in deep-sea surface sediments
Coverage:
Median Latitude: 78.147256 * Median Longitude: 124.209741 * South-bound Latitude: 77.169170 * West-bound Longitude: 114.916000 * North-bound Latitude: 79.649820 * East-bound Longitude: 136.967680
Date/Time Start: 2012-08-28T21:22:00 * Date/Time End: 2012-09-02T20:39:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.075 m
Event(s):
PS80/292-1 * Latitude: 79.649820 * Longitude: 130.597470 * Date/Time: 2012-08-28T21:22:00 * Elevation: -3387.4 m * Location: Arctic Ocean * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Multicorer with television (TVMUC) * Comment: Position sensor: Ship's GPS
PS80/296-1 * Latitude: 78.388620 * Longitude: 133.201500 * Date/Time: 2012-08-29T16:32:00 * Elevation: -1986.4 m * Location: Laptev Sea * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Multicorer with television (TVMUC) * Comment: 1963 m, GE 52.2, Bodensicht; Position sensor: USBL Ixsea Posidonia
PS80/299-1 * Latitude: 78.136150 * Longitude: 133.332780 * Date/Time: 2012-08-29T23:16:00 * Elevation: -786.6 m * Location: Laptev Sea * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Multicorer with television (TVMUC) * Comment: abgesetzt, SL=775m; Position sensor: USBL Ixsea Posidonia
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Bienhold, Christina | |||
| 2 | Latitude of event | Latitude | Bienhold, Christina | |||
| 3 | Longitude of event | Longitude | Bienhold, Christina | |||
| 4 | Date/Time of event | Date/Time | Bienhold, Christina | |||
| 5 | Elevation of event | Elevation | m | Bienhold, Christina | ||
| 6 | DEPTH, sediment/rock | Depth sed | m | Bienhold, Christina | Geocode | |
| 7 | Chlorophyll a | Chl a | µg/cm3 | Bienhold, Christina | ||
| 8 | Sample comment | Sample comment | Bienhold, Christina |
Change history:
2021-04-26T07:45:54 – Abstract and method was added and sampling metadata provided in the dataset
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
60 data points