A5065610998- Underwater Acoustics Research
- Marine Biology and Ecology Research
- Marine and environmental studies
- Geological formations and processes
- Marine and fisheries research
- Coastal and Marine Dynamics
- Marine and coastal plant biology
- Coastal wetland ecosystem dynamics
- Coastal and Marine Management
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Aquatic and Environmental Studies
- Marine animal studies overview
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Ocean Acidification Effects and Responses
- Underwater Vehicles and Communication Systems
- Coral and Marine Ecosystems Studies
- Marine Bivalve and Aquaculture Studies
- Maritime and Coastal Archaeology
- Geological Modeling and Analysis
- Image Processing and 3D Reconstruction
- Hydrocarbon exploration and reservoir analysis
- Medical Practices and Rehabilitation
- Environmental Monitoring and Data Management
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2012-2023
Comprehensive empirical data to inform benthic species distribution models for marine hard-substrate-dominated environments, are pivotal. However, such difficult obtain. These crucial the definition and demarcation of protected areas assessment ecological status function hard-substrate habitats. In this study, underwater video-observations habitats within four target in sand-dominated German Bight (SE North Sea) were investigated obtain comprehensive information on patterns, amount sizes...
Abstract. The Sylt Roads pelagic time series covers physical and hydrochemical parameters at five neighboring stations in the Sylt–Rømø bight, Wadden Sea, North Sea. Since beginning of 1973, sea surface temperature (SST), salinity, ammonium, nitrite, nitrate, soluble reactive phosphorus (SRP) have been measured twice a week. other were introduced later (dissolved silicate (Si) since 1974, pH 1979, dissolved organic nitrogen (DON) 1996, (DOP) 2001, chlorophyll suspended particulate matter...
Globally, marine subtidal hard-substrate habitats provide important ecological functions to a variety of sessile and mobile taxa. The southern North Sea is environment with relatively low amounts areas. Surveys high taxonomic resolution on the associated epifauna, e.g. by diving observations, are challenging in this region because strong tidal currents considerable water depths. Therefore, characteristics remain poorly understood. goal study was extend knowledge taxa assemblages four areas...
Facing the predicted rise in global sea level, sandy shorelines are under increasing pressure. In order to counteract loss of material at eroding coastlines, beach nourishment is considered be an environmentally friendly approach worldwide. This has resulted a rising demand for aggregates, which frequently extracted from seafloor near coast. explore long- and short-term morphological changes such mining on seabed, largest extraction area German Bight (Westerland Dredging Area, established...
Abstract A shallow subtidal area in the northern Wadden Sea was monitored over 17 years (from 2003 to 2019) for sediment parameters and macrobenthic fauna. Due sheltered position of study area, composition remained rather stable with only minor annual seasonal variations granulometry. An intermittend storm (‘Kyrill’) had no significant effect on parameters; construction an artificial dune along southern border transient but lasting effects composition. Faunal species richness total abundance...
Mielck, F.; Hass, H.C., and Betzler, C., 2014. High-resolution hydroacoustic seafloor classification of sandy environments in the German Wadden Sea.The knowledge regarding distribution seabed North Sea is still fragmentary. Hydroacoustic devices can provide rapid reliable information on acoustic characteristics seafloor. Data a typical, exclusively shallow investigation area located are here presented. The study includes sublittoral areas deep channels. ground discrimination system RoxAnn...
Rocky reefs provide complex structures in the otherwise largely sand-dominated coastal North Sea. Therefore, these are highly important natural habitats for functioning of ecosystems, as they shelter, refuge and nursery grounds various mobile sessile species. In Sea, spatial distribution has been intensively investigated over recent years. However, studies generally static accounts current state reef systems, but limited data exist on temporal variations sediment dynamics at around rocky...
Abstract. The Sylt Roads pelagic time series covers physical and hydrochemical parameters at five neighboring stations in the Sylt-Rømø Bight, Wadden Sea, North Sea. Since beginning of 1973, sea surface temperature (SST), salinity, ammonium, nitrite, nitrate soluble reactive phosphorus (SRP) were measured twice a week. Other introduced later (dissolved silicate (Si) – since 1974, pH - 1979, dissolved organic nitrogen (DON) 1996, (DOP) 2001, chlorophyll suspended particulate matter (SPM)...
The state and development of coastal marine systems an understanding the interaction organisms, sea floor, water column, biochemical physical processes can only be obtained by a combination long-term monitoring modelling approaches different complexity. A need for evaluation strategies is driven a framework European German regulations. research project WIMO (Scientific Monitoring Concepts Bight) has developed concepts methods that aim at fundamental scientific also meet requirements...
Abstract. Sea-level rise demands for protection measures of endangered coastlines crucial the local population. At island Sylt in SE North Sea, shoreline erosion is compensated by replenishment with sand dredged from an offshore extraction site. We studied long-term effects on bathymetry, geomorphology, habitats and benthic fauna. Sand created dredging holes about 1 km diameter up to 20 m below ambient seafloor level. Directly after superficial sediment layer, inside pits was dominated...
Abstract. Sea-level rise demands for protection measures of endangered coastlines crucial the local population. At island Sylt in SE North Sea, shoreline erosion is compensated by replenishment with sand dredged from an offshore excavation site. We studied long-term effects extraction on bathymetry, geomorphology, habitats, and benthic fauna. Hydroacoustic surveys revealed that changes bathymetry habitat characteristics caused can be still detected after > 35 years while investigation...