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Organic matter export to the seafloor in the Baltic Sea: Drivers of change and future projections
Stockholm University, Faculty of Science, Department of Ecology, Environment and Plant Sciences.
Number of Authors: 3
2017 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 46, no 8, 842-851 p.Article in journal (Refereed) Published
Abstract [en]

The impact of environmental change and anthropogenic stressors on coastal marine systems will strongly depend on changes in the magnitude and composition of organic matter exported from the water column to the seafloor. Knowledge of vertical export in the Baltic Sea is synthesised to illustrate how organic matter deposition will respond to climate warming, climate-related changes in freshwater runoff, and ocean acidification. Pelagic heterotrophic processes are suggested to become more important in a future warmer climate, with negative feedbacks to organic matter deposition to the seafloor. This is an important step towards improved oxygen conditions in the near-bottom layer that will reduce the release of inorganic nutrients from the sediment and hence counteract further eutrophication. The evaluation of these processes in ecosystem models, validated by field observations, will significantly advance the understanding of the system's response to environmental change and will improve the use of such models in management of coastal areas.

Place, publisher, year, edition, pages
2017. Vol. 46, no 8, 842-851 p.
Keyword [en]
Acidification, Baltic Sea, Climate warming, Eutrophication, Organic matter export, Pelagic food web
National Category
Environmental Engineering Earth and Related Environmental Sciences Ecology
Identifiers
URN: urn:nbn:se:su:diva-148822DOI: 10.1007/s13280-017-0930-xISI: 000412998600002OAI: oai:DiVA.org:su-148822DiVA: diva2:1156753
Available from: 2017-11-14 Created: 2017-11-14 Last updated: 2017-11-14Bibliographically approved

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Winder, Monica
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