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DOI	10.1007/s10533-020-00703-5
	Origin and fate of dissolved organic matter in four shallow Baltic Sea estuaries
	Voss M.; Asmala E.; Bartl I.; Carstensen J.; Conley D.J.; Dippner J.W.; Humborg C.; Lukkari K.; Petkuviene J.; Reader H.; Stedmon C.; Vybernaite-Lubiene I.; Wannicke N.; Zilius M.
发表日期	2020
ISSN	0168-2563
英文摘要	Coastal waters have strong gradients in dissolved organic matter (DOM) quantity and characteristics, originating from terrestrial inputs and autochthonous production. Enclosed seas with high freshwater input therefore experience high DOM concentrations and gradients from freshwater sources to more saline waters. The brackish Baltic Sea experiences such salinity gradients from east to west and from river mouths to the open sea. Furthermore, the catchment areas of the Baltic Sea are very diverse and vary from sparsely populated northern areas to densely populated southern zones. Coastal systems vary from enclosed or open bays, estuaries, fjords, archipelagos and lagoons where the residence time of DOM at these sites varies and may control the extent to which organic matter is biologically, chemically or physically modified or simply diluted with transport off-shore. Data of DOM with simultaneous measurements of dissolved organic (DO) nitrogen (N), carbon (C) and phosphorus (P) across a range of contrasting coastal systems are scarce. Here we present data from the Roskilde Fjord, Vistula and Öre estuaries and Curonian Lagoon; four coastal systems with large differences in salinity, nutrient concentrations, freshwater inflow and catchment characteristics. The C:N:P ratios of DOM of our data, despite high variability, show site specific significant differences resulting largely from differences residence time. Microbial processes seemed to have minor effects, and only in spring did uptake of DON in the Vistula and Öre estuaries take place and not at the other sites or seasons. Resuspension from sediments impacts bottom waters and the entire shallow water column in the Curonian Lagoon. Finally, our data combined with published data show that land use in the catchments seems to impact the DOC:DON and DOC:DOP ratios of the tributaries most. © 2020, The Author(s).
英文关键词	Baltic Sea; Coastal systems; Dissolved organic matter; Riverine input
语种	英语
来源期刊	Biogeochemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153169
作者单位	Biological Oceanography, Leibniz Institute for Baltic Sea Research, Warnemünde, Germany; Tvärminne Zoological Station, University of Helsinki, Hanko, Finland; Department of Bioscience, Aarhus University, Roskilde, Denmark; Department of Geology, Lund University, Lund, Sweden; Stockholms Universitets Östersjöcentrum, Stockholm, Sweden; Finnish Environment Institute, Marine Research Centre, Agnes Sjöbergin katu 2, Helsinki, 00790, Finland; Marine Research Institute, Klaipeda University, Universiteto al, 17, Klaipeda, 92295, Lithuania; Department of Chemistry, Memorial University of Newfoundland, St. John’s, Canada; National Institute of Aquatic Resources, Technical University of Denmark, Building 202, Kemitorvet, Lyngby, 2800 Kgs, Denmark; Leibniz Institute für Plasmaforschung und Technologie e.V., Greifswald, Germany
推荐引用方式 GB/T 7714	Voss M.,Asmala E.,Bartl I.,et al. Origin and fate of dissolved organic matter in four shallow Baltic Sea estuaries[J],2020.
APA	Voss M..,Asmala E..,Bartl I..,Carstensen J..,Conley D.J..,...&Zilius M..(2020).Origin and fate of dissolved organic matter in four shallow Baltic Sea estuaries.Biogeochemistry.
MLA	Voss M.,et al."Origin and fate of dissolved organic matter in four shallow Baltic Sea estuaries".Biogeochemistry (2020).