A5091664986- Methane Hydrates and Related Phenomena
- Geology and Paleoclimatology Research
- Marine and coastal plant biology
- Polar Research and Ecology
- Atmospheric and Environmental Gas Dynamics
- Marine Biology and Ecology Research
- Marine animal studies overview
- Cryospheric studies and observations
- Isotope Analysis in Ecology
- Species Distribution and Climate Change
- Soil Geostatistics and Mapping
- Underwater Acoustics Research
- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Geographic Information Systems Studies
- Marine and fisheries research
- Geological Modeling and Analysis
- Indigenous Studies and Ecology
- Coral and Marine Ecosystems Studies
- Marine and environmental studies
- Underwater Vehicles and Communication Systems
- Hydrocarbon exploration and reservoir analysis
- Arctic and Antarctic ice dynamics
- Advanced Computational Techniques and Applications
- Geochemistry and Geologic Mapping
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2011-2023
Carl von Ossietzky Universität Oldenburg
2018
Helmholtz Institute for Functional Marine Biodiversity
2018
Bedford Institute of Oceanography
2011-2012
Geological Survey of Canada
2012
Glacial meltwater discharge from Antarctica is a key influence on the marine environment, impacting ocean circulation, sea level and productivity of pelagic benthic ecosystems. The responses elicited depend strongly characteristics releases, including timing, spatial structure geochemical composition. Here we use isotopic tracers to reveal time-varying pattern during event Fourcade Glacier into Potter Cove, northern Antarctic Peninsula. dependent local air temperature, accumulates an...
The West Antarctic Peninsula (WAP) is a hotspot of physical climate change, especially glacial retreat, particularly in its northern South Shetland Islands (SSI) region. Along coastlines, this process opening up new ice-free areas, for colonization by high biodiversity flora and fauna. At Potter Cove, the SSI (Isla 25 de Mayo/King George Island), Antarctica, macroalgae was studied two newly low glacier influence area (LGI), (HGI) differing presence sediment run-off light penetration, which...
Abstract The Retrospective Analysis of Antarctic Tracking Data (RAATD) is a Scientific Committee for Research project led jointly by the Expert Groups on Birds and Marine Mammals Biodiversity Informatics, endorsed Commission Conservation Living Resources. RAATD consolidated tracking data multiple species meso- top-predators to identify Areas Ecological Significance. These datasets accompanying syntheses provide greater understanding fundamental ecosystem processes in Southern Ocean, support...
When Antarctic glaciers retreat, high sediment loads from geomorphological and glaciological sources can disturb the biota, especially filtering organisms, thereby significantly alter ecology of coast. We applied Finite volumE Sea-ice Ocean-Coastal Model (FESOM-C), a numerical tool equipped with module, to simulate for first time suspended particulate matter (SPM) dynamics in fjordic environment at northern West Peninsula, Potter Cove as case study. Depth-averaged SPM during meteorologically...
Macroalgae are the main primary producers in polar coastal regions and of major importance for associated heterotrophic communities. On King George Island/Isla 25 de Mayo, West Antarctic Peninsula (WAP) several fjords undergo rapid glacial retreat response to increasing atmospheric temperatures. Hence, extended meltwater plumes laden with suspended particulate matter (SPM) generated that hamper production during austral summer season. We used ensemble modelling approximate changes benthic...
The crabeater seal (Lobodon carcinophaga) is the most abundant Antarctic and inhabits circumpolar pack ice zone of Southern Ocean. Until now, information on important environmental factors affecting its distribution as well foraging behaviour limited. In austral summer 1998, 12 seals both sexes different age classes were equipped with satellite-linked dive recorders at Drescher Inlet (72.85°S, 19.26°E), eastern Weddell Sea. To identify suitable habitat conditions within Sea, a maximum...
The coasts of the West Antarctic Peninsula are strongly influenced by glacier meltwater discharge. spatial structure and biogeochemical composition inshore habitats shaped large quantities terrigenous particulate material deposited in vicinity coast, which impacts pelagic benthic ecosystems. We used a multitude geochemical environmental variables to identify radius extension impact from Fourcade Glacier into fjord system Potter Cove, King George Island. k-means cluster algorithm, canonical...
Global warming causes profound environmental shifts in the Arctic Ocean, altering composition and structure of communities. In Fram Strait, a transitional zone between North-Atlantic climate change effects are particularly pronounced accelerated due to an increased inflow warm Atlantic water. Gelatinous zooplankton known as key predators, consuming great variety prey playing important role marine ecosystems. Insufficient knowledge how gelatinous affected by has resulted notable gap...
Abstract In Kongsfjorden (Spitsbergen), we quantified the zonation of visually dominant macroalgal taxa and detached macroalgae from underwater videos taken in summer 2009 at six transects between 2 138 m water depth. For first time, provide information on occurrence deep red algae below kelp forest depth > 30 m. The presence distribution were especially pronounced outer fjord, decreased with proximity to glacial front they absent innermost locations. Deepest crustose coralline foliose...
Abstract. Research vessels equipped with fibre optic and copper-cored coaxial cables support the live onboard inspection of high-bandwidth marine data in real time. This allows for towed still-image video sleds to be latest-generation higher-resolution digital camera systems additional sensors. During RV Polarstern expedition PS118 February–April 2019, recently developed Ocean Floor Observation Bathymetry System (OFOBS) Alfred Wegener Institute was used collect from seafloor at a total 11...
The glacier retreat observed during the last decades at Potter Cove (PC) causes an increasing amount of suspended particulate matter (SPM) in water column, which has a high impact on sessile filter feeder’ species PC located West Antarctic Peninsula. SPM presents highly-fluctuating dynamic pattern daily, monthly, seasonal, and interannual basis. Geostatistical interpolation techniques are widely used by default to generate reliable spatial information thereby improve ecological understanding...