The effect of sediment resuspension on pelagic nitrogen fixation in a Danish fjord - Core incubations
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2025
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| _version_ | 1867168237531168768 |
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| author | Schlangen, Isabell Löscher, Carolin Regina Attard, Karl Michael Sørensen, Lisbeth Fürst Riemann, Lasse |
| author_facet | Schlangen, Isabell Löscher, Carolin Regina Attard, Karl Michael Sørensen, Lisbeth Fürst Riemann, Lasse |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset contains results from incubation experiments investigating the impact of sediment resuspension on nitrogen (N₂) fixation in a microtidal fjord environment. Experiments were conducted seasonally during June, July, August, and September 2023 using water and sediment from Kærby Fed in Odense Fjord, Denmark. The aim was to evaluate whether varying intensities of resuspension affect pelagic N₂ fixation activity. Measured parameters include: (i) N₂ fixation rates, determined using the 15N₂ tracer method following Mohr et al. (2010), (ii) particulate organic carbon (POC) and particulate organic nitrogen (PON) content of the added sediment, analyzed by Elemental Analysis–Isotope Ratio Mass Spectrometry, (iii) concentrations of dissolved inorganic nitrogen (DIN) and phosphorus (DIP) in the overlying water, measured using a spectrophotometer. Incubations involved sediment slurries subjected to different resuspension intensities, simulating a range of bed-shear stress conditions. All treatments were conducted in triplicates, and the dataset includes standard deviations for replicate measurements. The data support assessments of how sediment-driven processes influence microbial nitrogen cycling in coastal zones of the Danish Baltic Sea. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_983171 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | The effect of sediment resuspension on pelagic nitrogen fixation in a Danish fjord - Core incubations Schlangen, Isabell Löscher, Carolin Regina Attard, Karl Michael Sørensen, Lisbeth Fürst Riemann, Lasse According to Montoya et al. (1996), modified after Mohr et al. (2010) and Großkopf et al. 2012); Addition of marine sediment; Calculated; Carbon, organic, particulate; Carbon, organic, particulate, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Coastal dynamics; diazotrophs; Elemental Analysis - Isotope Ratio Mass Spectrometry (EA-IRMS), Thermo Fisher Scientific, EA IsoLink CN - ConFlo IV - Delta V Plus; Elemental analyzer, Thermo Scientific, Flash EA 1112; coupled with an isotope ratio mass spectrometer, Thermo Fisher, Finnigan Delta Plus XP; Experimental treatment; Incubation of sediment core, in situ; Kærby Fed, Odense Fjord, Denmark; Latitude of event; Location of event; Longitude of event; Month; Nitrogen, inorganic, dissolved; Nitrogen, inorganic, dissolved, standard deviation; Nitrogen, inorganic, dissolved/Phosphorus, inorganic, dissolved ratio; Nitrogen, organic, particulate; Nitrogen, organic, particulate, standard deviation; nitrogen cycling; nitrogen fixation; Nitrogen fixation rate; Nitrogen fixation rate, standard deviation; Number of measurements; Odense_Fjord_core_2023; Phosphorus, inorganic, dissolved; Phosphorus, inorganic, dissolved, standard deviation; Resuspension; Sampling date/time, experiment; seasonal fluctuations; SEDCO; Sediment corer; Spectrophotometer UV/VIS, Thermo Fisher Scientific, Genesys 10; Treatment: sediment; Treatment: sediment, standard deviation; Type of study This dataset contains results from incubation experiments investigating the impact of sediment resuspension on nitrogen (N₂) fixation in a microtidal fjord environment. Experiments were conducted seasonally during June, July, August, and September 2023 using water and sediment from Kærby Fed in Odense Fjord, Denmark. The aim was to evaluate whether varying intensities of resuspension affect pelagic N₂ fixation activity. Measured parameters include: (i) N₂ fixation rates, determined using the 15N₂ tracer method following Mohr et al. (2010), (ii) particulate organic carbon (POC) and particulate organic nitrogen (PON) content of the added sediment, analyzed by Elemental Analysis–Isotope Ratio Mass Spectrometry, (iii) concentrations of dissolved inorganic nitrogen (DIN) and phosphorus (DIP) in the overlying water, measured using a spectrophotometer. Incubations involved sediment slurries subjected to different resuspension intensities, simulating a range of bed-shear stress conditions. All treatments were conducted in triplicates, and the dataset includes standard deviations for replicate measurements. The data support assessments of how sediment-driven processes influence microbial nitrogen cycling in coastal zones of the Danish Baltic Sea. |
| title | The effect of sediment resuspension on pelagic nitrogen fixation in a Danish fjord - Core incubations |
| topic | According to Montoya et al. (1996), modified after Mohr et al. (2010) and Großkopf et al. 2012); Addition of marine sediment; Calculated; Carbon, organic, particulate; Carbon, organic, particulate, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Coastal dynamics; diazotrophs; Elemental Analysis - Isotope Ratio Mass Spectrometry (EA-IRMS), Thermo Fisher Scientific, EA IsoLink CN - ConFlo IV - Delta V Plus; Elemental analyzer, Thermo Scientific, Flash EA 1112; coupled with an isotope ratio mass spectrometer, Thermo Fisher, Finnigan Delta Plus XP; Experimental treatment; Incubation of sediment core, in situ; Kærby Fed, Odense Fjord, Denmark; Latitude of event; Location of event; Longitude of event; Month; Nitrogen, inorganic, dissolved; Nitrogen, inorganic, dissolved, standard deviation; Nitrogen, inorganic, dissolved/Phosphorus, inorganic, dissolved ratio; Nitrogen, organic, particulate; Nitrogen, organic, particulate, standard deviation; nitrogen cycling; nitrogen fixation; Nitrogen fixation rate; Nitrogen fixation rate, standard deviation; Number of measurements; Odense_Fjord_core_2023; Phosphorus, inorganic, dissolved; Phosphorus, inorganic, dissolved, standard deviation; Resuspension; Sampling date/time, experiment; seasonal fluctuations; SEDCO; Sediment corer; Spectrophotometer UV/VIS, Thermo Fisher Scientific, Genesys 10; Treatment: sediment; Treatment: sediment, standard deviation; Type of study |
| url | https://doi.org/10.1594/PANGAEA.983171 |