A5025115495- Marine and fisheries research
- Marine Biology and Ecology Research
- Marine Bivalve and Aquaculture Studies
- Marine Ecology and Invasive Species
- Astrophysical Phenomena and Observations
- Spacecraft Design and Technology
- Particle Detector Development and Performance
- Identification and Quantification in Food
- Methane Hydrates and Related Phenomena
- Advanced Wireless Communication Techniques
- Pulsars and Gravitational Waves Research
- Environmental Toxicology and Ecotoxicology
- Marine and coastal plant biology
- Astro and Planetary Science
- Fish Ecology and Management Studies
- Parasite Biology and Host Interactions
- Pharmaceutical and Antibiotic Environmental Impacts
- Integrated Water Resources Management
- Cellular Automata and Applications
- Gamma-ray bursts and supernovae
- Planetary Science and Exploration
- Calibration and Measurement Techniques
- Coastal wetland ecosystem dynamics
- Aquatic Invertebrate Ecology and Behavior
- Health Systems, Economic Evaluations, Quality of Life
Technical University of Denmark
2016-2024
Deakin University
2024
Deutsches Historisches Institut Rom
2024
DHI
2013-2023
Danish Hydraulic Institute (India)
2013-2015
DTU Space
2012
Danish Meteorological Institute
2003
Roskilde University
1999
Radiolabs
1996
Alcatel Lucent (Germany)
1993
A Life-Table-Response Experiment lasting 78 d was performed to investigate the toxic effects of sediment-associated 4-n-nonylphenol (NP) on growth, reproduction, and survivorship isolated hermaphrodites infaunal polychaete Capitella sp. I. Demographic were evaluated using both a fully age-classified simple two-stage model estimate population growth rates (λ). Decomposition analysis explore contributions each affected life-history traits observed λ. Elasticity applied examine relative...
The LOFT mission concept is one of four candidates selected by ESA for the M3 launch opportunity as Medium Size missions Cosmic Vision programme. window currently planned between 2022 and 2024. designed to exploit diagnostics rapid X-ray flux spectral variability that directly probe motion matter down distances very close black holes neutron stars, well physical state ultradense matter. These primary science goals will be addressed a payload composed Large Area Detector (LAD) Wide Field...
Fishery of blue mussels Mytilus edulis constitutes a very important economic activity in Denmark, whereas mussel farming on long-lines or nets is new, growing sector. Spawning from natural beds takes place during early summer, and larvae disperse via water currents before settling the bottom spat collectors farms. In present study, we coupled 3D physical model system (FlexSem) with an agent-based order to examine connectivity this marine terms larval dispersal potential. To address question,...
1. A simple two‐stage population model was applied to data from a previously published life‐table response experiment (LTRE), which examined the toxicity of 4‐ n ‐nonylphenol life‐history traits polychaete Capitella sp. I. Population growth rates ( λ ) and relative sensitivities (= elasticities) changes in each individual were calculated. 2. In present study, parameters measured laboratory‐reared individuals manipulated simulate potential effects competition predation on fecundity, time...
Same Risk Area refers to an area-based approach for the risk assessment of aquatic invasive species that considers extent natural dispersal. It is a new addition Guidelines on Assessment (G7) under International Convention Control and Management Ships' Ballast Water Sediments. The method outlined here define assesses connectivity concern within wider area by combining information from simulated hydrodynamic data agent-based modelling with biological traits habitat preferences selected target species.
The North Sea and the Baltic Sea, including Danish coastal waters, have experienced a drastic decline in eelgrass Zostera marina coverage during past century. Around 1900, meadows covered about 6700 km2 of waters while current potential distribution area is only one third this. In some areas, far from realized, restoration efforts are needed to assist recovery. Such challenging, resource-demanding careful site selection is, therefore, important. present study, we aim identify connectivity...
Abstract The introduction of Marine Non-Indigenous Species (NIS) poses a significant threat to global marine biodiversity and ecosystems. To mitigate this risk, the Ballast Water Management Convention (BWMC) was adopted by UN International Maritime Organisation (IMO), setting strict criteria for discharges ballast water. However, BWMC permits exemptions shipping routes operating within geographical area, known as Same-Risk-Area (SRA). An SRA can be established in areas where risk assessment...
LOFT (Large Observatory For x-ray Timing) is one of the four missions selected in 2011 for assessment study ESA M3 mission Cosmic Vision program, expected to be launched 2024. The will carry two instruments with their prime sensitivity 2-30 keV range: a 10 m<sup>2 </sup>class large area detector (LAD) <1° collimated field view and wide monitor (WFM) instrument based on coded mask principle, providing coverage more than 1/3 sky. LAD provide an effective ~20 times larger any previous by...
LOFT (Large Observatory For x-ray Timing) is one of the ESA M3 missions selected within Cosmic Vision program in 2011 to carry out an assessment phase study and compete for a launch opportunity 2022-2024. The phase-A studies all were completed at end 2013. designed on-board two instruments with sensitivity 2-50 keV range: 10 m<sup>2</sup> class Large Area Detector (LAD) <1° collimated FoV wide field monitor (WFM) making use coded masks providing instantaneous coverage more than 1/3 sky....
Although life histories can be modelled with great generality using projection matrices, for organisms that accurately described by a simplified set of parameters, e.g. when adult fecundity and mortality are independent age, more accurate estimates table parameters population growth rate its standard error readily obtained. Here an analytic method calculating approximate confidence intervals is given two‐stage four variables representing age at first breeding, per unit time, juvenile...
Common cockle Cerastoderma edule populations in the Danish Limfjorden constitute an important ecosystem component and a valuable resource for fishermen industries, providing large proportion of landings both Denmark European Union. However, processes driving recruitment mortality are not well understood, prevent sustainable fisheries management species protection efforts. We report thorough study that main drivers population recruitment, namely larval dispersal settlement. Outputs from...
Abstract We report the development of a prototype tool for modeling risks spreading non-indigenous invasive species via ballast water. The constitutes two types models: 3D hydrodynamical model calculates currents in North Sea and Danish Straits, an agent-based estimates dispersal selected organisms with prevailing calculated by model. analysis is concluded postprocessing activity, where scenarios are combined into interim estimate connectivity within study area. latter can be used assessment...
Larval dispersal is dependent on multiple physical and biotic factors a key driver of population connectivity. Connectivity believed to be important in determining how species will cope changing climate by allowing species' ranges expand or constrict response environmental shifts. In the following study, we couple 3D model system with an individual-based answer whether change effects mussel larvae affect structure demographic connectivity Limfjorden. The Limfjorden Denmark supports large...
Abstract A healthy ocean where marine habitats and ecosystems are mapped protected is one of the UN's Sustainable Development Goals to sustainably use resources. Our study presents first high‐resolution benthic habitat map from Greenland integrating analyses multibeam bathymetry backscatter data, ground‐truth data including video sled, drop camera day grab. The pilot area 30 × 20 km located on continental shelf in central Disko Bay, West all were collected a single, 10‐day survey. Multibeam...
LOFT (Large Observatory For x-ray Timing) is one of the ESA M3 missions selected within Cosmic Vision program in 2011 to carry out an assessment phase study and compete for a launch opportunity 2022-2024. The phase-A studies all were completed at end 2013. designed on-board two instruments with sensitivity 2-50 keV range: 10 m class Large Area Detector (LAD) <1° collimated FoV wide field monitor (WFM) making use coded masks providing instantaneous coverage more than 1/3 sky. prime goal WFM...
During cold spells in Denmark and The Netherlands January–February 1996, Belgium January 1997, ice buildup on plastic neckbands pinkfooted geese Anser brachyrhynchus was observed, affecting 15–31% of the marked areas. Ice started to form at effective temperatures approximately ‐5°C, but broke off after 1–6 days, despite remaining below freezing point. subsequent months, there no detectable difference body condition, assessed by an abdominal profile index, which had experienced no, light or...
PM systems with 12.5 kHz and 25 channel spacing have been compared 12.5kHz AM 5kHz SSB systems, the effect of applying companding techniques to as well has investigated. The respect audio signal quality, speech intelligibility, spectrum utilization applicational flexibility. traditional - uncontrollable field trials replaced by laboratory tests using advanced propagation simulation techniques, analysis included pulse noise susceptibility performance multipath fading. overall conclusion is...
A Life-Table-Response Experiment lasting 78 d was performed to investigate the toxic effects of sediment-associated 4-n-nonylphenol (NP) on growth, reproduction, and survivorship isolated hermaphrodites infaunal polychaete Capitella sp. I. Demographic were evaluated using both a fully age-classified simple two-stage model estimate population growth rates (λ). Decomposition analysis explore contributions each affected life-history traits observed λ. Elasticity applied examine relative...