Thorsten Dittmar
YOU?
Author Swipe
View article: Conservative behavior of dissolved black carbon in the northwestern Pacific marginal seas
Conservative behavior of dissolved black carbon in the northwestern Pacific marginal seas Open
Dissolved black carbon (DBC) represents the largest molecularly identifiable slow-cycling organic carbon pool in the ocean. However, its behavior remains debated due to large differences between its radiocarbon ages and residence times bas…
View article: Predicting Dissolved Black Carbon Concentration From Chromophoric Dissolved Organic Matter Along the Land‐Ocean Continuum
Predicting Dissolved Black Carbon Concentration From Chromophoric Dissolved Organic Matter Along the Land‐Ocean Continuum Open
Dissolved black carbon (DBC) plays a key role in global carbon cycle and pollutant transport. However, the time‐consuming and labor‐intensive chemical analysis limits its spatiotemporal resolution. Here, we developed models to predict DBC …
View article: Large scale hydrogeochemical and isotopic observations in the Baltic Sea system
Large scale hydrogeochemical and isotopic observations in the Baltic Sea system Open
We report hydrogeochemical and isotopic observations across the Baltic Sea from two research expeditions: (1) a ~5000 km cruise-track onboard the R/V Skagerak in 2023 and (2) a land-based sampling for terrestrial endmembers in 2024. The sh…
View article: Reframing natural organic matter research through compositional data analysis
Reframing natural organic matter research through compositional data analysis Open
Compositional data (CoDa) are prevalent in environmental research. They represent parts of a whole, such as percentages, proportions, and relative or absolute abundance. They are arrays of positive data that convey relevant information in …
View article: Logging disrupts the ecology of molecules in headwater streams
Logging disrupts the ecology of molecules in headwater streams Open
Global demand for wood products is increasing forest harvest. One understudied consequence of logging is that it accelerates mobilization of dissolved organic matter (DOM) from soils to aquatic ecosystems where it is more easily rereleased…
View article: Improvement of Electrospray Ionization Response Linearity and Quantification in Dissolved Organic Matter Using Synthetic Deuterated Internal Standards
Improvement of Electrospray Ionization Response Linearity and Quantification in Dissolved Organic Matter Using Synthetic Deuterated Internal Standards Open
Aquatic dissolved organic matter (DOM) is an ultracomplex mixture of compounds covering a wide range of masses and with an unknown extent of isomeric complexity, making its structural elucidation and quantification highly challenging. Elec…
View article: Bacterial interactions shape the molecular composition of dissolved organic matter
Bacterial interactions shape the molecular composition of dissolved organic matter Open
Heterotrophic marine microbes drive long-term carbon storage in the oceans by partitioning phytoplankton-derived dissolved organic matter (DOM) into fractions of varying persistence. However, the role of microbial interactions in molecular…
View article: Hydrothermal mobilization and molecular transformations of dissolved organic matter from deep subsurface sediments
Hydrothermal mobilization and molecular transformations of dissolved organic matter from deep subsurface sediments Open
Carbon mobilization in hydrothermal sediments and advective transport of dissolved organic matter (DOM) to the ocean affect deep-sea ecosystems. However, the link between hydrothermal processes and DOM reactivity in organic-rich subsurface…
View article: Author Correction: Dynamics of organic matter in algal blooms on the Greenland ice sheet
Author Correction: Dynamics of organic matter in algal blooms on the Greenland ice sheet Open
View article: Organo-mineral interactions modulate organic carbon retention and mobility in a deep subterranean estuary of a high-energy beach
Organo-mineral interactions modulate organic carbon retention and mobility in a deep subterranean estuary of a high-energy beach Open
Permeable sandy sediments beneath high-energy beaches act as potent biogeochemical reactors with high organic matter turnover rates. Despite their significant role in nutrient and Fe cycling in coastal environments, their capacity to trap …
View article: Improvement of Electrospray Ionization Response Linearity and Quantification in Dissolved Organic Matter using Synthetic Deuterated Internal Standards
Improvement of Electrospray Ionization Response Linearity and Quantification in Dissolved Organic Matter using Synthetic Deuterated Internal Standards Open
Aquatic dissolved organic matter (DOM) is an ultra-complex mixture of compounds covering a wide range of masses and with an unknown extent of isomeric complexity, making its structural elucidation and quantification highly challenging. Ele…
View article: Dynamics of organic matter in algal blooms on the Greenland ice sheet
Dynamics of organic matter in algal blooms on the Greenland ice sheet Open
View article: Extraction Strategies for Profiling the Molecular Composition of Particulate Organic Matter on Glacier Surfaces
Extraction Strategies for Profiling the Molecular Composition of Particulate Organic Matter on Glacier Surfaces Open
Pigmented microalgae thrive on supraglacial surfaces, producing "sticky" extracellular polymeric substances that combine into a mineral-organic matrix. Together, they enhance snow and ice melting by lowering the albedo. Understanding the c…
View article: Network Flow Methods for NMR-Based Compound Identification
Network Flow Methods for NMR-Based Compound Identification Open
In this work, we introduce a novel method for compound identification in mixtures based on nuclear magnetic resonance spectra. Contrary to many other methods, our approach can be used without peak-picking the mixture spectrum and simultane…
View article: Imprint of incomplete combustion processes on the water column of the anthropogenic-pressured Baltic Sea
Imprint of incomplete combustion processes on the water column of the anthropogenic-pressured Baltic Sea Open
This study evaluates the distribution and sources of thermogenic organic matter in the Baltic Sea water column, focusing on polycyclic aromatic hydrocarbons (PAH), dissolved black carbon (DBC), and the imprint of thermogenic organic matter…
View article: The Amazonian mangrove systems accumulate and release dissolved neodymium and hafnium to the oceans
The Amazonian mangrove systems accumulate and release dissolved neodymium and hafnium to the oceans Open
Mangroves are essential tropical ecosystems nurturing a wide range of marine biodiversity and counteracting global warming by sequestering atmospheric carbon dioxide. Hence, the export mechanisms and fluxes of particulate and dissolved org…
View article: Rapid Down‐Slope Transport of Fresh Dissolved Organic Matter to the Deep Ocean in the Eastern North Atlantic
Rapid Down‐Slope Transport of Fresh Dissolved Organic Matter to the Deep Ocean in the Eastern North Atlantic Open
Intense convective mixing in the central North Atlantic is a major gateway for dissolved organic matter (DOM) into the deep ocean, sustaining elevated dissolved organic carbon (DOC) concentrations. Rapid down‐slope transport on adjacent Ir…
View article: Preface: Special Issue on Probing the Open Ocean With the Research Sailing Yacht <i>Eugen Seibold</i> for Climate Geochemistry
Preface: Special Issue on Probing the Open Ocean With the Research Sailing Yacht <i>Eugen Seibold</i> for Climate Geochemistry Open
The 72‐foot sailing yacht Eugen Seibold is a new research platform for contamination‐free sampling of the water column and atmosphere for biological, chemical, and physical properties, and the exchange processes between the two realms. Ult…
View article: Dissolved Organic Matter Contains Ketones Across a Wide Range of Molecular Formulas
Dissolved Organic Matter Contains Ketones Across a Wide Range of Molecular Formulas Open
The carbonyl functionality of natural organic matter (NOM) is poorly constrained. Here, we treated Suwannee River NOM (SRNOM) with ammonium acetate and sodium cyanoborohydride to convert ketone-containing compounds by reductive amination t…
View article: Assessing the Impacts of Reservoirs on Riverine Dissolved Organic Matter: Insights From the Largest Reservoir in the Pearl River
Assessing the Impacts of Reservoirs on Riverine Dissolved Organic Matter: Insights From the Largest Reservoir in the Pearl River Open
Extensive reservoir construction has fragmented more than 70% of the world's rivers, significantly impacting river connectivity and carbon cycling. However, the response of riverine dissolved organic matter (DOM) to reservoir influence and…
View article: Carbon Outwelling and Uptake Along a Tidal Glacier‐Lagoon‐Ocean Continuum
Carbon Outwelling and Uptake Along a Tidal Glacier‐Lagoon‐Ocean Continuum Open
Tidewater glaciers are highly vulnerable to climate change due to warming from both atmospheric and seawater sources. Most tidewater glaciers are rapidly retreating, but little is known about how glacial melting modifies coastal biogeochem…
View article: The elephant in the conference room: reducing the carbon footprint of aquatic science meetings
The elephant in the conference room: reducing the carbon footprint of aquatic science meetings Open
The unsustainability of conferences, whose carbon footprint is mostly made of air travel, has remained an academic taboo, even more so that virtual conferences, despite being carbon-efficient, have revealed their limitations. This concern …
View article: Global growth phase response of the gut bacterium Phocaeicola vulgatus (phylum Bacteroidota)
Global growth phase response of the gut bacterium Phocaeicola vulgatus (phylum Bacteroidota) Open
Phocaeicola vulgatus belongs to the intestinal microbiome, where it fermentatively breaks down of food-derived biopolymers , thereby, contributing to the gut metabolome. Moreover, due to its product range, P. vulgatus is a potential nonsta…
View article: Iron Promotes the Retention of Terrigenous Dissolved Organic Matter in Subtidal Permeable Sediments
Iron Promotes the Retention of Terrigenous Dissolved Organic Matter in Subtidal Permeable Sediments Open
Marine permeable sediments are important sites for organic matter turnover in the coastal ocean. However, little is known about their role in trapping dissolved organic matter (DOM). Here, we examined DOM abundance and molecular compositio…
View article: Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes
Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes Open
View article: Rivers and tidal flats as sources of dissolved organic matter and trace metals in the German Bight (North Sea)
Rivers and tidal flats as sources of dissolved organic matter and trace metals in the German Bight (North Sea) Open
The German Bight in the southern North Sea receives nutrients, dissolved organic matter (DOM), and trace metals from rivers, porewater reflux, and porewater outwelling. We studied the marine, riverine, and porewater sources analyzing molec…
View article: Dissolved Organic Matter from Coastal Vegetated Ecosystems Through the Lens of Carbon Sequestration
Dissolved Organic Matter from Coastal Vegetated Ecosystems Through the Lens of Carbon Sequestration Open
Coastal vegetated ecosystems (CVEs) are highly productive habitats whose role in coastal biogeochemical cycles cannot be understated. The high productivity of salt marshes, seagrass meadows, and mangrove forests is channeled into the sedim…
View article: Rapid lateral transport of fresh dissolved organic matter to the deep ocean in the NE Atlantic
Rapid lateral transport of fresh dissolved organic matter to the deep ocean in the NE Atlantic Open
Deepwater formation in the North Atlantic Ocean is a major gateway for dissolved organic matter (DOM) transport into the deep ocean. Despite focusing on vertical mixing, lateral transport of DOM from productive shelf regions is underexplor…
View article: Universal microbial reworking of dissolved organic matter along soil gradients
Universal microbial reworking of dissolved organic matter along soil gradients Open
Soils lose a large amount of carbon annually to freshwaters as dissolved organic matter (DOM), which, if degraded, can undermine climate change mitigation. The degradation state of DOM in aquatic ecosystems can reflect the distance from it…
View article: The sandy beach subterranean estuary as a potential organic carbon sink
The sandy beach subterranean estuary as a potential organic carbon sink Open
Subterranean estuaries (STEs) beneath sandy beaches are biogeochemical reactors that can modify the chemical composition of fresh groundwater and recirculating seawater. Compared to surface estuaries, the mechanisms underlying the transfor…