Description: 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 composition in the East Frisian Wadden Sea. A total of max. 10 stations are sampled monthly from March to October. Samples are taken using a Hydrobios Apstein net, 150 µm mesh size, hauled from 10 meters depth 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, pooled together, and stored in a 1L container fixed 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' variable. The data provides a detailed time series of zooplankton species composition, biomass, body size and species distribution from 2015 to 2024 in the East Frisian Wadden Sea.
Global identifier:
Doi(
"10.1594/PANGAEA.995417",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Abundance per volume",
"Biovolume per volume",
"Carbon",
"DATE/TIME",
"DEPTH, water",
"Depth, water, bottom/maximum",
"Depth, water, top/minimum",
"Dry mass",
"Event label",
"Latitude of event",
"Location of event",
"Longitude of event",
"Sample code/label",
"Sample method",
"Species",
"Species, unique identification",
"Species, unique identification (Semantic URI)",
"Species, unique identification (URI)",
"Stage",
"Taxon/taxa",
"Wet mass",
],
methods: [
"Bogorov-Chamber with stereoscopic magnifier, according to DIN EN 17204:2020-09",
],
},
)
Tags: Niedersachsen ? Kohlenstoff ? Nährstoff ? Wattenmeer ? Zooplankton ? Geografische Koordinaten ? Plankton ? Artenvielfalt ? Artenzusammensetzung ? Wasserprobe ? Biomasse ? Daten ? Wasserstand ? Wasserwirtschaft ? Zeitreihe ? Naturschutz ?
Region: East Frisian Wadden Sea, Germany
Bounding boxes: 6.8745425° .. 8.381554° x 53.47901472° .. 53.82°
License: Creative Commons Namensnennung 4.0
Language: Englisch/English
Issued: 2026-07-20
Modified: 2026-07-20
Last harvest: 27.07.2026 03:46
Time ranges: 2015-07-13 - 2024-10-19
Accessed 25 times.