A5010346138- Heavy metals in environment
- Geochemistry and Elemental Analysis
- Aquatic Ecosystems and Phytoplankton Dynamics
- Urbanization and City Planning
- Diverse academic and cultural studies
- Groundwater and Isotope Geochemistry
- Marine and coastal ecosystems
- Historical and Environmental Studies
- Oil Spill Detection and Mitigation
- Mine drainage and remediation techniques
- bioluminescence and chemiluminescence research
- Parasite Biology and Host Interactions
- Smart Grid Energy Management
- Biocrusts and Microbial Ecology
- Fish Ecology and Management Studies
- Iron oxide chemistry and applications
- Animal Behavior and Reproduction
- Microplastics and Plastic Pollution
- Microbial bioremediation and biosurfactants
- Geology and Paleoclimatology Research
- Environmental Philosophy and Ethics
- Hybrid Renewable Energy Systems
- Plant and animal studies
- Fecal contamination and water quality
- Hydrogen Storage and Materials
Roskilde University
2019-2025
Lund University
2017-2024
Technical University of Munich
2016
University of Basel
2014
Previous studies report high and increasing iron (Fe) concentrations in boreal river mouths. This Fe has shown relatively stability to salinity-induced aggregation estuaries. The aim of this study was understand how the speciation affects over salinity gradients. For remain suspension interactions with organic matter (OM) are fundamental these can be divided two dominant phases: organically complexed Fe, colloidal (oxy)hydroxides, stabilized by surface OM. phases tested using mixing...
Abstract Riverine colloids are important carriers of macronutrients, trace metals, and pollutants into marine waters. The aim the current study was to extend understanding iron (Fe) organic carbon (OC) in boreal rivers their fate at higher salinities. X‐ray absorbance spectroscopy (XAS) dynamic light scattering (DLS) were combined explore Fe speciation colloidal characteristics such as size surface charge how these affected increasing salinity. XAS confirmed presence two phases river...
Abstract. Rivers discharge a notable amount of dissolved Fe (1.5×109 mol yr−1) to coastal waters but are still not considered important sources bioavailable open marine waters. The reason is that the vast majority particular and riverine be lost sediment due aggregation during estuarine mixing. Recently, however, several studies demonstrated relatively high stability salinity-induced aggregation, it has been proposed organically complexed (Fe-OM) can “survive” salinity gradient, while...
Draining wetland landscapes accelerates climate change, and multilateral support is therefore needed to speed up the transition new land uses. This paper examines perceptions of ecosystem services (ES) in areas scientific civic assessments. The case study area Denmark’s largest drained system, which notable for its carbon sequestration potential. area’s transformation efforts involving public participation offer a unique chance examine differences between ES. exceptional ideal revealing...
Worldwide increases in fluvial fine sediment are a threat to aquatic animal health. Fluvial is always mixture of particles whose mineralogical composition differs depending on the source and catchment area geology. Nonetheless, whether particle impact organisms between mineral species remains be investigated. This study applied an vitro approach evaluate cytotoxicity uptake four common (quartz, feldspar, mica, kaolin; concentrations: 10, 50, 250 mg L−1) rainbow trout epithelial gill cell...
Abstract Diel vertical migration (DVM) is the most common behavioral phenomenon in zooplankton, and numerous studies have evaluated DVM under strong seasonality at higher latitudes. Yet, our understanding of environmental drivers low latitudes, where seasonal variation less pronounced, remains limited. Therefore, we here examined patterns distribution copepods six subtropical Bahamian blue holes with different food web structure tested role several key variables potentially affecting this...
Abstract While organic matter (OM) interactions in the water column prevent iron (Fe) precipitation and sedimentation, Fe also acts as a precursor of aggregation vector OM to sediments. This study aims characterize Fe–OM understand role promoting transport OM. Samples were collected from water, settling material, sediment along gradient starting inlet continuing offshore within boreal lake. speciation was determined using X-ray absorption spectroscopy (XAS), chemical composition assessed...
While lake systems in temperate regions have been extensively studied, tropical and subtropical received less attention.Here, we describe the water chemistry biota of ten inland blue holes on Andros Island, The Bahamas, representative morphological, abiotic, biotic variation among Androsian holes.The majority studied were vertically stratified with oxic freshwater overlying anoxic saline groundwater marine origin.Water (e.g. total phosphorus nitrogen) shallow waters was similar holes, while...
Crustacean copepods in high-latitude lakes frequently alter their pigmentation facultatively to defend themselves against prevailing threats, such as solar ultraviolet radiation (UVR) and visually oriented predators. Strong seasonality those environments promotes phenotypic plasticity. To date, no one has investigated whether low-latitude copepods, experiencing continuous stress from UVR predation exhibit similar inducible defences. We here the levels of Bahamian 'blue hole' addressing this...
Rivers have traditionally been viewed as negligible sources of iron (Fe) to marine waters, most Fe gets lost during estuarine mixing. However, recent findings demonstrate that from boreal rivers display a higher resistance towards salinity-induced aggregation, presumably due stabilizing interactions with organic matter. Previous studies shown (oxy)hydroxides are selectively removed by aggregation processes, and complexes less affected increasing salinity. It has further proposed speciation...
The capacity of intermittent power sources like wind and PV is steadily increasing. existing balance between production consumption seriously affected by these new sources. Flexible demand for example in buildings one solution to come back a stable system. Buildings provide huge potential flexible electricity demand. This flexibility can be addressed using model predictive control (MPC) with optimized scheduling the buildings’ heating, ventilation air conditioning (HVAC) systems. Therefore,...
Predation is a well‐studied driver of ecological selection on prey traits, which frequently drives divergence in anti‐predator performance across environments that vary predation risk. However, also alters mortality regimes, where low risk often results higher densities and consequently intensities intraspecific resource competition. In addition, the foraging context, as acquiring food can be risky presence predators. Thus, different regimes drive divergent traits associated with...
Abstract Predation risk is often invoked to explain variation in stress responses. Yet, the answers several key questions remain elusive, including following: (1) how predation influences evolution of phenotypes, (2) relative importance environmental versus genetic factors reactivity and (3) sexual dimorphism physiology. To address these questions, we explored (ventilation frequency) a post‐Pleistocene radiation live‐bearing fish, where Bahamas mosquitofish ( Gambusia hubbsi ) inhabit...
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Abstract. Rivers discharge a notable amount of Fe (1.5 x 109 mol yr−1) to coastal waters, but are still not considered important sources bioavailable open marine waters. The reason is that the vast majority riverine be lost sediment due aggregation during estuarine mixing. Recently however, several studies demonstrate relatively high stability salinity induced aggregation, and it has been proposed organically complexed (Fe-OM) can “survive” gradient, while (oxy)hydroxides prone selectively...