Tidal and spatial variations of DI13C and aquatic chemistry in a temperate tidal basin during winter time ...

• Main Authors: Winde, Vera, Böttcher, Michael Ernst, Escher, Peter, Böning, Philipp, Beck, Melanie, Schneider, Bernd
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2015
• Subjects: Biological Impacts of Ocean Acidification BIOACID; Beck; Gerd; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.841976; https://doi.pangaea.de/10.1594/PANGAEA.841976

Here, the pelagic carbonate system and the d13C signature of dissolved inorganic carbonate (DIC) were investigated in a tidal basin of the southern North Sea, the Jade Bay, with respect to tidal cycles and a transect towards the North Sea in winter time (January and November, 2010). Physical parameters, major and trace elements, and nutrient concentrations were considered, too. Primary production and pelagic organic matter respiration were negligible during winter time. Both, the compositional variations on the transects as well as during the tidal cycles indicate the mixing of North Sea with fresh water. The combined spatial co-variations of different parameters indicate an introduction of fresh water that was enriched in DI12C, metabolites (e.g., ammonia), protons, and dissolved redox-sensitive elements (e.g., Mn2+). During the January campaign, the discharge via the flood gates was limited due to ice cover of the hinterland drainage ditches, allowing for an observation of tidal variations without ... : Supplement to: Winde, Vera; Böttcher, Michael Ernst; Escher, Peter; Böning, Philipp; Beck, Melanie; Liebezeit, Gerd; Schneider, Bernd (2014): Tidal and spatial variations of DI13C and aquatic chemistry in a temperate tidal basin during winter time. Journal of Marine Systems, 129, 396-404 ...