PANGAEA_983110 Molecular composition of dissolved organic matter in Mono Lake (USA) derived from FT-ICR MS analysis Utsumi, Giovanna S A; Medeiros, Patricia M Molecular composition of dissolved organic matter in Mono Lake (USA) derived from FT-ICR MS analysis 2026-03-12 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.983110 Investigator Patricia M Medeiros medeiros@uga.edu Earth Science Sample code/label DATE/TIME LATITUDE LONGITUDE DEPTH, water Mass-to-charge ratio Peak intensity geoscientificInformation California CTD/Rosette Dissolved Organic Matter Endorheic saline lakes FT-ICR MS Mono_Lake Mono Lake Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), Bruker; coupled with 21 Tesla (T) magnet 2017-05-23 2018-10-09 Complete 37.95729999989599 37.95729999989599 -119.03149999781154 -119.03149999781154 0.5 m (DEPTH, water) 35.0 m (DEPTH, water) unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 3206154 data points text/tab-separated-values 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 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

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.983110"!

http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME http://goldbook.iupac.org/M03752.html Mass-to-charge ratio https://doi.org/10.1007/s00027-026-01283-6 Temporal variability of dissolved organic matter composition in the hypersaline Mono Lake, California https://doi.org/10.1111/gbi.12437 Microbial succession and dynamics in meromictic Mono Lake, California DIF 9.4 2026-03-12 2026-04-30