Fuhr, Michael; Parameswaran, Naveen Kumar; Wallmann, Klaus; Sommer, Stefan; Adam-Beyer, Nicole; Perner, Mirjam; Dale, Andy W: Nutrient concentrations from two benthic chambers and the ambient bottom water during an in-situ incubation experiment in July 2025 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.992807 (dataset in review), In: Fuhr, M et al.: Bottom water chemistry during in-situ incubation experiments on enhanced benthic calcite weathering in July 2025 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.992805 (dataset in review)
Abstract:
The dataset contains dissolved nutrient concentrations from water samples collected during a 16-day in-situ incubation experiment in the Baltic Sea (2025-07-12 to 2025-07-29). Samples were collected using an automated glass-syringe sampler deployed within two benthic chambers of a Biogeochemical Observatory (BIGO, Sommer et al., 2009) at 54° 34.432' N, 10° 10.776' E, at 22 m water depth. In one chamber, 29 g of fine calcite powder were added to the bottom water as part of an enhanced benthic calcite weathering experiment. Seven samples per chamber and from the ambient bottom water were analyzed to assess potential nutrient fluxes associated with the calcite addition and benthic biogeochemical processes.
References:
Sommer, Stefan; Linke, Peter; Pfannkuche, Olaf; Schleicher, Tina; Schneider von Deimling, Jens; Reitz, Anja; Haeckel, Matthias; Flögel, Sascha; Hensen, Christian (2009): Seabed methane emissions and the habitat of frenulate tubeworms on the Captain Arutyunov mud volcano (Gulf of Cadiz). Marine Ecology Progress Series, 382, 69-86, https://doi.org/10.3354/meps07956
Project(s):
Funding:
Federal Ministry of Research, Technology and Space (BMFTR), grant/award no. 03F0965A: DAM CDRmare - RETAKE-2, GEOMAR
Coverage:
Latitude: 54.573870 * Longitude: 10.179600
Date/Time Start: 2025-07-12T11:34:21 * Date/Time End: 2025-07-29T10:51:47
Event(s):
AL2025/12_2-3 * Latitude: 54.573870 * Longitude: 10.179600 * Date/Time: 2025-07-12T11:34:21 * Campaign: AL2025/12 (DALE-BIGO) * Basis: Alkor (1990) * Method/Device: Biogeochemical observatory (BIGO) * Comment: Lander deployment
AL2025/19_2-3 * Latitude: 54.573870 * Longitude: 10.179600 * Date/Time: 2025-07-29T10:51:47 * Campaign: AL2025/19 (DALE-BIGO II) * Basis: Alkor (1990) * Method/Device: Biogeochemical observatory (BIGO) * Comment: Lander recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Dale, Andy W | |||
| 2 | Sample type | Samp type | Dale, Andy W | |||
| 3 | LATITUDE | Latitude | Dale, Andy W | Geocode | ||
| 4 | LONGITUDE | Longitude | Dale, Andy W | Geocode | ||
| 5 | Instrument | Instrument | Dale, Andy W | |||
| 6 | Sampling date/time, experiment | Date/time sampling exp | Dale, Andy W | UTC, internal computer clock | ||
| 7 | Treatment | Treat | Dale, Andy W | |||
| 8 | Sample ID | Sample ID | Dale, Andy W | |||
| 9 | Phosphate | [PO4]3- | µmol/l | Dale, Andy W | Segmented continuous flow analyzer, SEAL Analytical, QuAAtro | |
| 10 | Nitrite | [NO2]- | µmol/l | Dale, Andy W | Segmented continuous flow analyzer, SEAL Analytical, QuAAtro | |
| 11 | Nitrate | [NO3]- | µmol/l | Dale, Andy W | Segmented continuous flow analyzer, SEAL Analytical, QuAAtro | |
| 12 | Silicate | Si(OH)4 | µmol/l | Dale, Andy W | Spectrophotometer, Hitachi, U-2001 | |
| 13 | Ammonium | [NH4]+ | µmol/l | Dale, Andy W | Segmented continuous flow analyzer, SEAL Analytical, QuAAtro |
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:
286 data points