Fig. 4: Time series of δ2H / δ18O values in water samples collected between 24th March 2020 and 9th March 2021 at Biological Station Zingst (Zingster Stream; sampling point E; Fig. 2b), in comparison to water temperature and long-term trends of salinity. Water level at the bodden outflow towards the Baltic Sea at Barhöft (WSV, 2022). Riverine discharge of Recknitz and Barthe (STALU, 2022) .