Utsumi, Giovanna S A; Medeiros, Patricia M (2026): Molecular composition of dissolved organic matter in Mono Lake (USA) derived from FT-ICR MS analysis [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983110
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Published: 2026-03-12 • DOI registered: 2026-04-10
Abstract:
We investigated the composition of dissolved organic matter (DOM) in the hypersaline Mono Lake in California (USA), providing a detailed molecular characterization of DOM in this extreme ecosystem during a shift in limnological conditions (2017–2018). This dataset contains DOM molecular data (mass-to-charge ratios and peak intensities) obtained using ultrahigh-resolution mass spectrometry (21T Fourier transform ion cyclotron resonance mass spectrometry, FT-ICR MS; Bruker). Water samples were collected seasonally at depths ranging from 0.5 m to 35 m, using a CTD rosette as described in Phillips et al. (2021). Additionally, the dataset includes DOM molecular data from two main creeks - Lee Vining Creek and Rush Creek - as well as from a dominant phytoplankton species, Picocystis sp.
Supplement to:
Utsumi, Giovanna S A; Hollibaugh, James T; McKenna, Amy M; Castelao, Renato M; Medeiros, Patricia M (2026): Temporal variability of dissolved organic matter composition in the hypersaline Mono Lake, California. Aquatic Sciences, 88(2), 52, https://doi.org/10.1007/s00027-026-01283-6
References:
Phillips, Alexandra A; Speth, Daan; Miller, Laurence G; Wang, Xingchen; Wu, F; Medeiros, Patricia M; Monteverde, Danielle R; Osburn, Magdalena R; Berelson, William M; Betts, Hannah L; Wijker, Reto S; Mullin, Sean W; Johnson, Hope A; Orphan, Victoria J; Fischer, Woodward W; Geobiology Course 2017; Geobiology Course 2018; Sessions, Alex L (2021): Microbial succession and dynamics in meromictic Mono Lake, California. Geobiology, 19(4), 376-393, https://doi.org/10.1111/gbi.12437
Funding:
National Science Foundation (NSF), grant/award no. DMR-1644779: National High Magnetic Field Laboratory Renewal 2018-2022
Coverage:
Latitude: 37.957300 * Longitude: -119.031500
Date/Time Start: 2017-05-23T00:00:00 * Date/Time End: 2018-10-09T00:00:00
Minimum DEPTH, water: 0.5 m * Maximum DEPTH, water: 35.0 m
Event(s):
Mono_Lake * Latitude: 37.957333 * Longitude: -119.031500 * Location: Mono Lake, California, United States of America * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Medeiros, Patricia M | |||
| 2 | DATE/TIME | Date/Time | Medeiros, Patricia M | Geocode | ||
| 3 | LATITUDE | Latitude | Medeiros, Patricia M | Geocode | ||
| 4 | LONGITUDE | Longitude | Medeiros, Patricia M | Geocode | ||
| 5 | DEPTH, water | Depth water | m | Medeiros, Patricia M | Geocode | |
| 6 | Mass-to-charge ratio | m/z | Medeiros, Patricia M | Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), Bruker; coupled with 21 Tesla (T) magnet | ||
| 7 | Peak intensity | Peak int | Medeiros, Patricia M | Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), Bruker; coupled with 21 Tesla (T) magnet |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3206154 data points
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