PANGAEA_993181 Continuous turbidity observations near DynaCom experimental in the back-barrier tidal flat, Spiekeroog, Germany, 2018-09 to 2023-09 Pieck, Daniela; Weyel, Niklas; Schwalfenberg, Kai; Hillebrand, Helmut; Kleyer, Michael; Lõhmus, Kertu; Wollschläger, Jochen; Zielinski, Oliver; Badewien, Thomas Henry Continuous turbidity observations near DynaCom experimental in the back-barrier tidal flat, Spiekeroog, Germany, 2018-09 to 2023-09 2026-03-26 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993181 Investigator Thomas Henry Badewien thomas.badewien@uni-oldenburg.de Earth Science Event label DATE/TIME Latitude of event Longitude of event Height above sea floor/altitude ALTITUDE Turbidity (Nephelometric turbidity unit) geoscientificInformation BEFmate BEFmate_SaltMarshEdge1 BEFmate_seafloor biodiversity - ecosystem functioning DynaCom experimental islands Field experiment groundwater Metacommunity Multiple investigations salt marsh SCO Spiekeroog Spiekeroog Coastal Observatory turbidity Turbidity meter, Seapoint Sensors inc., STM 2018-07-23 2023-09-02 Complete 53.75815 53.761357 7.72125 7.723237 0.9 m (ALTITUDE) 1.2 m (ALTITUDE) DynaCom FOR 2716: Spatial community ecology in highly dynamic landscapes: from island biogeography to metaecosystems unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 420935 data points text/tab-separated-values Balke, Thorsten; Lõhmus, Kertu; Hillebrand, Helmut; Zielinski, Oliver; Haynert, Kristin; Meier, Daniela; Hodapp, Dorothee; Minden, Vanessa; Kleyer, Michael (2017): Experimental salt marsh islands: A model system for novel metacommunity experiments. Estuarine, Coastal and Shelf Science, 198, 288-298, https://doi.org/10.1016/j.ecss.2017.09.021 Zielinski, Oliver; Meier, Daniela; Lõhmus, Kertu; Balke, Thorsten; Kleyer, Michael; Hillebrand, Helmut (2018): Environmental conditions of a salt-marsh biodiversity experiment on the island of Spiekeroog (Germany). Earth System Science Data, 10(4), 1843-1858, https://doi.org/10.5194/essd-10-1843-2018 Additional Metadata to continuous turbidity observations near DynaCom experimental in the back-barrier tidal flat, Spiekeroog, Germany (2026). Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University Oldenburg, Germany, https://download.pangaea.de/reference/138745/attachments/Pangaea_DynaCom_RBR-Tu_2018-2023_readme.txt

Data presented here were collected between September 2018 to September 2023 within the research unit DynaCom (Spatial community ecology in highly dynamic landscapes: From island biogeography to metaecosystems) involving the Universities of Oldenburg, Göttingen, and Münster, the iDiv Leipzig and the Nationalpark Niedersächsisches Wattenmeer. Experimental islands and saltmarsh enclosed plots were established in the back-barrier tidal flat and in the saltmarsh zone of the island of Spiekeroog (Germany). To measure local turbidity, a turbidity recorder equipped with a Seapoint® turbidity meter (RBRsolo Tu, RBR Ltd., Ontario/Canada) was installed in the back-barrier tidal flat near the experimental islands in a shallow tidal creek (0.9 m NHN). Another one was installed at the saltmarsh edge (1.2 m NHN). Both loggers were bottom mounted through a steel girder (buried 0.3 m deep in the sediment) and were positioned 15 cm above sediment surface, as was determined by using a portable differential GPS. This resulted in the sensor falling dry during low tide. The turbidity recorders were pre-calibrated by the manufacturer (Seapoint Sensors, Inc., NH/USA). Recorded data were internally logged and exported using Ruskin software V2.24.3.x (RBR Ltd., Ontario/Canada). Subsequent data processing was done using MATLAB (R2024b). Post-processing and quality control included the removal of (a) low tide data (sensors exposed to air), (b) data covering maintenance activities, (c) data affected by biofouling, and (d) implausible values, i.e. negative values and values exceeding the linear response range of the sensor (1250 NTU). According to manufacturer specifications, the linear measurement range extends up to 1250 NTU, while 750 NTU represent a more conservative estimate of linearity. Therefore, 1250 NTU was adopted as the upper threshold for valid measurements in this dataset. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993181"!

http://en.wikipedia.org/wiki/Altitude ALTITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.org/10.1016/j.ecss.2017.09.021 Experimental salt marsh islands: A model system for novel metacommunity experiments https://doi.org/10.5194/essd-10-1843-2018 Environmental conditions of a salt-marsh biodiversity experiment on the island of Spiekeroog (Germany) https://en.wikipedia.org/wiki/Turbidity Turbidity (Nephelometric turbidity unit) https://uol.de/en/icbm/collaborative-projects/dynacom DynaCom https://www.seapoint.com/pdf/stm_ds.pdf Turbidity meter, Seapoint Sensors inc., STM DIF 9.4 2026-03-26 2026-03-26