Schlangen, Isabell; Löscher, Carolin Regina; Attard, Karl Michael; Sørensen, Lisbeth Fürst; Riemann, Lasse (2025): The effect of sediment resuspension on pelagic nitrogen fixation in a Danish fjord - Sediment characteristics [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983163
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Published: 2025-11-18 • DOI registered: 2025-12-17
Abstract:
This dataset contains sediment characteristics relevant to assessing the potential impact of sediment resuspension on biogeochemical processes in a microtidal fjord system. Sediment samples were collected seasonally during June, July, August, and September 2023 from Kærby Fed in Odense Fjord, Denmark. The data provide baseline information on sediment composition and nutrient content under varying natural conditions. Measured parameters include: (i) concentrations of dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP), analyzed using a spectrophotometer, (ii) particulate organic carbon (POC) and particulate organic nitrogen (PON), determined by Elemental Analysis–Isotope Ratio Mass Spectrometry, (iii) sediment chlorophyll a (Chl a), measured using a fluorometer, (iv) physical sediment properties, including density, water content, and porosity. Samples were processed in triplicates, and the dataset includes standard deviations to account for measurement variability. These data serve as a geochemical context for related studies investigating sediment resuspension and nutrient cycling in the Danish Baltic Sea region.
Keyword(s):
Supplement to:
Schlangen, Isabell; Riemann, Lasse; Attard, Karl Michael; Löscher, Carolin Regina (2025): The effect of sediment resuspension on pelagic nitrogen fixation in a Danish Fjord. Estuarine, Coastal and Shelf Science, 327, 109566, https://doi.org/10.1016/j.ecss.2025.109566
Related to:
Schlangen, Isabell; Löscher, Carolin Regina; Attard, Karl Michael; Sørensen, Lisbeth Fürst; Riemann, Lasse (2025): The effect of sediment resuspension on pelagic nitrogen fixation in a Danish fjord - Core incubations [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983171
References:
Mohr, Wiebke; Großkopf, Tobias; Wallace, Douglas WR; LaRoche, Julie (2010): Methodological Underestimation of Oceanic Nitrogen Fixation Rates. PLoS ONE, 5(9), e12583, https://doi.org/10.1371/journal.pone.0012583
Funding:
Independent Research Fund Denmark (DFF), grant/award no. DFF-0217-00089B: Biogeochemical cycling and nitrogen fixation in Danish coastal regions
Coverage:
Latitude: 55.452444 * Longitude: 10.492889
Date/Time Start: 2023-06-19T00:00:00 * Date/Time End: 2023-09-05T00:00:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Schlangen, Isabell | |||
| 2 | Location of event | Location | Schlangen, Isabell | |||
| 3 | Latitude of event | Latitude | Schlangen, Isabell | |||
| 4 | Longitude of event | Longitude | Schlangen, Isabell | |||
| 5 | Sampling date/time, experiment | Date/time sampling exp | Schlangen, Isabell | |||
| 6 | Month | Month | Schlangen, Isabell | |||
| 7 | Depth, sediment, experiment, top/minimum | Depth sed top | m | Schlangen, Isabell | ||
| 8 | Depth, sediment, experiment, bottom/maximum | Depth sed bot | m | Schlangen, Isabell | ||
| 9 | Sediment layer | Sed layer | Schlangen, Isabell | Homogenized | ||
| 10 | Number of measurements | n | # | Schlangen, Isabell | ||
| 11 | Carbon, organic, particulate | POC | % | Schlangen, Isabell | Elemental Analysis - Isotope Ratio Mass Spectrometry (EA-IRMS), Thermo Fisher Scientific, EA IsoLink CN - ConFlo IV - Delta V Plus | |
| 12 | Carbon, organic, particulate, standard deviation | POC std dev | ± | Schlangen, Isabell | Calculated | |
| 13 | Nitrogen, organic, particulate | PON | % | Schlangen, Isabell | Elemental Analysis - Isotope Ratio Mass Spectrometry (EA-IRMS), Thermo Fisher Scientific, EA IsoLink CN - ConFlo IV - Delta V Plus | |
| 14 | Nitrogen, organic, particulate, standard deviation | PON std dev | ± | Schlangen, Isabell | Calculated | |
| 15 | Organic matter, particulate | POM | % | Schlangen, Isabell | Loss on ignition | |
| 16 | Organic matter, particulate, standard deviation | POM std dev | ± | Schlangen, Isabell | Calculated | |
| 17 | Water content, sediment | Water sed | % | Schlangen, Isabell | Weight loss after drying | |
| 18 | Water content, standard deviation | Water std dev | ± | Schlangen, Isabell | Calculated | |
| 19 | Density | Density | g/cm3 | Schlangen, Isabell | Dry mass per unit sample volume | |
| 20 | Density, standard deviation | Density std dev | ± | Schlangen, Isabell | Calculated | |
| 21 | Porosity, volume | Poros vol | Schlangen, Isabell | Volumetric | Porosity, ɸ = volume water/total volume | |
| 22 | Porosity, volume, standard deviation | Poros vol std dev | ± | Schlangen, Isabell | Calculated | |
| 23 | Carbon/Nitrogen ratio | C/N | Schlangen, Isabell | Elemental analyzer, Thermo Scientific, Flash EA 1112; coupled with an isotope ratio mass spectrometer, Thermo Fisher, Finnigan Delta Plus XP | ||
| 24 | Carbon/Nitrogen ratio, standard deviation | C/N std dev | ± | Schlangen, Isabell | Calculated | |
| 25 | Chlorophyll a | Chl a | µg/l | Schlangen, Isabell | Fluorometer, Turner Designs, Trilogy 7200-000 | Surface Chl a |
| 26 | Chlorophyll a, standard deviation | Chl a std dev | ± | Schlangen, Isabell | Calculated | Surface Chl a |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
416 data points