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Studer, Anja S; Wörmer, Lars; Vogel, Hendrik; Dubois, Nathalie; Bartosiewicz, Maciej; Hinrichs, Kai-Uwe; Lepori, Fabio; Lehmann, Moritz F (2024): Diatom-bound and bulk sediment nitrogen isotope ratios, bulk sediment parameters, Ba/Ti ratio & heterocyst glycolipids in lacustrine sediment cores Figino19-2 and Figino18-2 from lake Lugano, Switzerland [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.967003

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Published: 2024-07-03 • DOI registered: 2024-07-09

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Abstract:
In two corresponding sediment cores (Figino19-2 and Figino18-2) from the South Basin of Lake Lugano (Switzerland), we have measured diatom-bound nitrogen isotopes, bulk sediment nitrogen and carbon isotopes, organic carbon mass accumulation rates, Ba/Ti ratios and heterocyst glycolipids concentrations to reconstruct the nitrogen cycle and paleoenvironmental conditions of the lake over the past 125 years. Diatom-bound nitrogen isotope analyses were measured using the persulfate denitrifier technique at the University of Basel. Bulk sediment C and N isotope ratios were measured using a Flash EA coupled to a Delta V Plus isotope ratio mass spectrometer at the University of Basel. Ba/Ti ratios were measured by X-ray fluorescence scanning using an ITRAX element core scanner at the University of Bern. Radionuclide activities to constrain the age model were determined by gamma spectrometry in a High-purity Germanium (HPGe) Well Detector at Eawag Dübendorf. Heterocsyst glycolipids were analyzed on a maXis quadrupole time-of-flight mass spectrometer equipped with an electrospray ionization source, and coupled to a Thermo Ultimate 3000RS UHPLC system at the University of Bremen.
Keyword(s):
Denitrification; diatom-bound nitrogen isotopes; eutrophication; lacustrine sediments; N2 fixation; nitrogen cycle; Paleolimnology
Supplement to:
Studer, Anja S; Wörmer, Lars; Vogel, Hendrik; Dubois, Nathalie; Bartosiewicz, Maciej; Hinrichs, Kai-Uwe; Lepori, Fabio; Lehmann, Moritz F (2024): First lacustrine application of the diatom‐bound nitrogen isotope paleo‐proxy reveals coupling of denitrification and N 2 fixation in a hyper‐eutrophic lake. Limnology and Oceanography, lno.12627, https://doi.org/10.1002/lno.12627
Funding:
Swiss National Science Foundation (SNF), grant/award no. 200021_200766: NISOPROX project
Coverage:
Latitude: 45.958028 * Longitude: 8.894306
Date/Time Start: 2019-04-05T00:00:00 * Date/Time End: 2019-04-05T00:00:00
Event(s):
Figino19-2 * Latitude: 45.958028 * Longitude: 8.894306 * Date/Time: 2019-04-05T00:00:00 * Location: Lake Lugano, Figino, Switzerland * Method/Device: Gravity corer (GC) * Comment: Water depth below lake level: 95 m.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
5 datasets

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Datasets listed in this bundled publication

  1. Studer, AS; Wörmer, L; Vogel, H et al. (2024): Downcore data of sediment cores Figino18-2 from lake Lugano, Switzerland. https://doi.org/10.1594/PANGAEA.966993
  2. Studer, AS; Wörmer, L; Vogel, H et al. (2024): Ba/Ti ratios of sediment cores Figino19-2 from lake Lugano, Switzerland. https://doi.org/10.1594/PANGAEA.966997
  3. Studer, AS; Wörmer, L; Vogel, H et al. (2024): Diatom-bound nitrogen isotope analyses of sediment cores Figino19-2 from lake Lugano, Switzerland. https://doi.org/10.1594/PANGAEA.966998
  4. Studer, AS; Wörmer, L; Vogel, H et al. (2024): Radionuclide activities of sediment cores Figino19-2 from lake Lugano, Switzerland. https://doi.org/10.1594/PANGAEA.966996
  5. Studer, AS; Wörmer, L; Vogel, H et al. (2024): Sedimentation rate of sediment cores Figino19-2 from lake Lugano, Switzerland. https://doi.org/10.1594/PANGAEA.967001