Due to stagnant or even increasing phytoplankton biomass in the Wadden Sea since 2005, the Lower Saxony Water Management, Coastal and Nature Protection Agency started a zooplankton survey in 2015, regularly monitoring the abundance, biomass, body size, and species in the East Frisian Wadden Sea. A total of 10 stations are sampled monthly. Samples are taken using an Hydrobios Apstein net, 150 µm mesh size, hauled from 10 meters deep to the surface at constant speed (0.67 m/s). The net has an opening of 40 cm in diameter, and is attached to a cone with a 17 cm wide opening. Samples are collected with three vertical hauls and stored in a 1L container mixed with borax-buffered formalin (5%). Samples are analyzed in accordance with the standard procedure DIN EN 17204:2020-09 to measure abundance, dry and wet weight, and taxonomic composition. Organisms were counted and identified up to the species (if possible) or genus level using a Bogorov-Chamber and a stereoscopic magnifier. The unaccepted or original names of species are given in the 'Species UID' variable, and the accepted identifications are given in the 'Species'. The data provides a detailed time series of zooplankton species composition, biomass, and body size distribution from 2015 to 2025 in the East Frisian Wadden Sea.
Data sets contain vertical profiles of current velocity measured by upward-looking Nortek AquaPro Acoustic Doppler Current Profilers (ADCP) deployed at two stations, an oyster bank (6.899° lng/ 53.546° lat, -32cm N.N) and a sand bank (6.898° lng/ 53.545° lat, -78cm N.N.), at Randzel 1 oyster reef in the Wadden Sea. Oyster bank station was located at the western edge of oyster reef, while sand bank station was positioned approximately 80 m to the southwest on a sandy seabed for comparison.
Data sets contain vertical profiles of current velocity measured by upward-looking Nortek AquaPro Acoustic Doppler Current Profilers (ADCP) deployed at two stations, an oyster bank (6.899° lng/ 53.546° lat, -32cm N.N) and a sand bank (6.898° lng/ 53.545° lat, -78cm N.N.), at Randzel 1 oyster reef in the Wadden Sea. Oyster bank station was located at the western edge of oyster reef, while sand bank station was positioned approximately 80 m to the southwest on a sandy seabed for comparison.
Data sets contain vertical profiles of current velocity measured by upward-looking Nortek AquaPro Acoustic Doppler Current Profilers (ADCP) deployed at two stations, an oyster bank (6.899° lng/ 53.546° lat, -32cm N.N) and a sand bank (6.898° lng/ 53.545° lat, -78cm N.N.), at Randzel 1 oyster reef in the Wadden Sea. Oyster bank station was located at the western edge of oyster reef, while sand bank station was positioned approximately 80 m to the southwest on a sandy seabed for comparison.
Data sets contain vertical profiles of current velocity measured by upward-looking Nortek AquaPro Acoustic Doppler Current Profilers (ADCP) deployed at two stations, an oyster bank (6.899° lng/ 53.546° lat, -32cm N.N) and a sand bank (6.898° lng/ 53.545° lat, -78cm N.N.), at Randzel 1 oyster reef in the Wadden Sea. Oyster bank station was located at the western edge of oyster reef, while sand bank station was positioned approximately 80 m to the southwest on a sandy seabed for comparison.
The Time Series Station Spiekeroog (TSS) was setup in 2002, in the tidal inlet between the East Frisian Islands of Langeoog and Spiekeroog in the Southern German Bight, at position 53°45′01.0″ N, 007°40′16.3″ E. The aim was to ensure the continuous measurement of physical, biological, chemical and meteorological parameters, even under extreme weather conditions such as storms, ice, and storm surges. The TSS was financed as part of the Deutsche Forschungsgemeinschaft (DFG) research unit BioGeoChemistry of Tidal Flats and the Ministry for Science and Culture of the Land of Lower Saxony (MWK). Here, air temperature, air pressure, relative humidity, wind speed and wind direction were measured in the year 2020. All raw data were revised and corrected for steps as range, outliers and stationarity checks. A detailed description of the Time Series Station Spiekeroog, its structure and instrumentation can be found in Zielinski et al. (2022) and in Reuter et al. (2009).
The Time Series Station Spiekeroog (TSS) was setup in 2002, in the tidal inlet between the East Frisian Islands of Langeoog and Spiekeroog in the Southern German Bight, at position 53°45′01.0″ N, 007°40′16.3″ E. The aim was to ensure the continuous measurement of physical, biological, chemical and meteorological parameters, even under extreme weather conditions such as storms, ice, and storm surges. The TSS was financed as part of the Deutsche Forschungsgemeinschaft (DFG) research unit BioGeoChemistry of Tidal Flats and the Ministry for Science and Culture of the Land of Lower Saxony (MWK). Here, air temperature, air pressure, relative humidity, wind speed and wind direction were measured in the year 2009. All raw data were revised and corrected for steps as range, outliers and stationarity checks. A detailed description of the Time Series Station Spiekeroog, its structure and instrumentation can be found in Zielinski et al. (2022) and in Reuter et al. (2009).
The Time Series Station Spiekeroog (TSS) was setup in 2002, in the tidal inlet between the East Frisian Islands of Langeoog and Spiekeroog in the Southern German Bight, at position 53°45′01.0″ N, 007°40′16.3″ E. The aim was to ensure the continuous measurement of physical, biological, chemical and meteorological parameters, even under extreme weather conditions such as storms, ice, and storm surges. The TSS was financed as part of the Deutsche Forschungsgemeinschaft (DFG) research unit BioGeoChemistry of Tidal Flats and the Ministry for Science and Culture of the Land of Lower Saxony (MWK). Here, air temperature, air pressure, relative humidity, wind speed and wind direction were measured in the year 2018. All raw data were revised and corrected for steps as range, outliers and stationarity checks. A detailed description of the Time Series Station Spiekeroog, its structure and instrumentation can be found in Zielinski et al. (2022) and in Reuter et al. (2009).
Flugzeugkartierungen von Seegraswiesen seit 1991 im Rahmen des trilateralen Monitoring-Programmes (TMAP).Polygon- und Liniencover. 2 Dichteklassen der geschlossnenen Bestände werden erfasst. Die Identifizierung der Flächen vom Sportflugzeug aus ist erst ab ca. 25% Deckung möglich, Zostera nana und Z. marina werden nicht unterschieden. Die Ergebnisse werden entsprechend den Beobachtungen in Karten eingetragen, bei landfernen Beständen sind die Lageungenauigkeiten größer. Aus den Jahren 1989 und 1990 liegen ähnliche, aber in der Klassifikation abweichende, Kartierungen im Rahmen der Ökosystemforschung Schleswig-Holsteinsches Wattenmeer vor.
Flugzeugkartierungen von Seegraswiesen seit 1991 im Rahmen des trilateralen Monitoring-Programmes (TMAP).Polygon- und Liniencover. 2 Dichteklassen der geschlossnenen Bestände werden erfasst. Die Identifizierung der Flächen vom Sportflugzeug aus ist erst ab ca. 25% Deckung möglich, Zostera nana und Z. marina werden nicht unterschieden. Die Ergebnisse werden entsprechend den Beobachtungen in Karten eingetragen, bei landfernen Beständen sind die Lageungenauigkeiten größer. Aus den Jahren 1989 und 1990 liegen ähnliche, aber in der Klassifikation abweichende, Kartierungen im Rahmen der Ökosystemforschung Schleswig-Holsteinsches Wattenmeer vor.
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