Description: We studied dissolved organic matter (DOM) dynamics in the sea surface microlayer (SML) during a mesocosm study at the Sea sURface Facility (SURF) of the Institute for Chemistry and Biology of the Marine Environment (ICBM) in Wilhelmshaven, Germany (53.5148 °N, 8.1463°E). The study was conducted from 18 May to 16 June 2023 as part of the multidisciplinary BASS research unit (Biogeochemical processes and Air-sea exchange in the Sea-Surface microlayer). SURF was filled with pretreated natural seawater from the nearby Jade Bay (53° 28' 42'' N, 8° 12' 15'' E) to replicate natural conditions. We selected this approach to examine the regrowth of surviving phytoplankton cells after the initial water treatments, simulating a native microbial community starting with almost no bioproduction or pre-existing bioproduction products. To induce and maintain the phytoplankton bloom, inorganic nitrogen, phosphorus, and silicate were added on May 26, May 31, and June 01, 2023. By that we induced an algal bloom of Emiliania huxleyi and Cylindrotheca closterium. By combining molecular analyses with nutrient and trace metal data, we highlight the in situ production of carbohydrate-like and laminarin-derived DOM as a significant contributor to the SML composition. This dataset contains DOM molecular data from ultrahigh-resolution mass spectrometry (Fourier-transform ion cyclotron resonance mass spectrometer, FT-ICR-MS), molecular indices calculated from the FT-ICR-MS data (Ibio, Iphoto, IDEG) and environmental data, including dissolved organic carbon (DOC), dissolved organic nitrogen (DON) data. Water samples were collected via glass plate for the SML and at 40 cm depth via tube. Furthermore, it contains attenuated total reflectance Fourier Transform Infrared (ATR-FTIR) data from representative samples for each bloom phase.
Global identifier:
Doi(
"10.1594/PANGAEA.995090",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"-",
"Aromatic compounds",
"Aromaticity index, modified",
"Carbohydrate-like",
"Carbon, organic, dissolved",
"Carbon, organic, dissolved, permeated",
"Carbon, organic, dissolved, solid phase extractable",
"DATE/TIME",
"DEPTH, water, experiment",
"Degradation index",
"Extraction budget",
"Extraction efficiency",
"Filter",
"Fluorescence, dissolved organic matter",
"Hydrogen/Carbon ratio",
"Index of biological formation and transformation",
"Index of photodegradation",
"Infrared band integral, C-H deformation / OH bending",
"Infrared band integral, C-O / C-O-C stretch",
"Infrared band integral, C=O stretching region",
"Infrared band integral, C=O stretching region, corrected",
"Infrared band integral, C=O stretching region, normalized, corrected",
"Infrared band integral, C=O stretching region, relative to total carbon signal",
"Infrared band integral, C=O stretching region, relative to total spectral intensity",
"Infrared band integral, CH stretching region",
"Infrared band integral, CH stretching region, corrected",
"Infrared band integral, CH stretching region, normalized, corrected",
"Infrared band integral, CH stretching region, relative to total carbon signal",
"Infrared band integral, CH stretching region, relative to total spectral intensity",
"Infrared band integral, OH/NH stretching region",
"Infrared band integral, OH/NH stretching region, corrected",
"Infrared band integral, OH/NH stretching region, normalized, corrected",
"Infrared band integral, aromatic C-O stretch",
"Infrared band integral, carbohydrate-associated",
"Infrared band integral, carbohydrate-associated, corrected",
"Infrared band integral, carbohydrate-associated, normalized, corrected",
"Infrared band integral, carbohydrate-associated, relative to total carbon signal",
"Infrared band integral, carbohydrate-associated, relative to total spectral intensity",
"Infrared band integral, protein-associated",
"Infrared band integral, protein-associated, corrected",
"Infrared band integral, protein-associated, normalized, corrected",
"Infrared band integral, protein-associated, relative to total carbon signal",
"Infrared band integral, protein-associated, relative to total spectral intensity",
"LATITUDE",
"LONGITUDE",
"Laminarin-indicative",
"Lipid-like",
"Molecular lability boundary",
"Nitrogen, organic, dissolved",
"Nitrogen, organic, dissolved, solid phase extractable",
"Oxygen/Hydrogen ratio",
"Phase",
"Protein-derived",
"Replicate",
"Spectral intensity, total",
"Type of study",
],
methods: [
"Calculated",
"Fluorometer/Turbiditymeter, Turner Designs, Aqualog handheld 8000-101 [wavelengths 350 nm excitation, 420 nm detection]",
"Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS)",
"Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS); baseline correction; peak decomposition; band integration",
"Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS); baseline correction; peak decomposition; band integration; sample volume corrected and DOC scaled",
"Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS); baseline correction; peak decomposition; band integration; ratio with total carbon signal",
"Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS); baseline correction; peak decomposition; band integration; ratio with total spectral intensity",
"Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS); baseline correction; peak decomposition; band integration; sample volume corrected and DOC scaled; normalised",
"High-temperature catalytic combustion, Shimadzu, Shimadzu TOC-VCPH",
"High-temperature catalytic combustion, Shimadzu, Shimadzu TOC-VCPH equipped with TDN unit",
],
},
)
Tags: Algenblüte ? Gelöster organischer Kohlenstoff ? Aromatischer Kohlenwasserstoff ? Meerwasser ? Nährstoff ? Phosphor ? Phytoplankton ? Deutschland ? Geografische Koordinaten ? Gesamtkohlenstoff ? Marines Ökosystem ? U-Bahn ? Metall ? Stickstoffeffizienz ? Wasserentnahme ? Meeresoberfläche ? Studie ? Wasserprobe ? Umweltdaten ? Daten ? Wasseraufbereitung ? Wasserhaushalt ? Gewässer ? ATR-FTIR spectroscopy ? DOM ? FDOM ? FT-ICR-MS ? mesocosm study ? sea surface microlayer ?
Bounding boxes: 8.146299999999998° .. 8.146299999999998° x 53.51479999999994° .. 53.51479999999994°
License: Creative Commons Namensnennung 4.0 (Data access requires registration)
Language: Englisch/English
Modified: 2026-05-18
Last harvest: 20.05.2026 01:38
Time ranges: 2023-05-18 - 2023-06-15
Accessed 4 times.