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Nutrient dynamics in coastal and shelf oceans - sediments as a regulator of eutrophication feedbacks


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Title: Nutrient dynamics in coastal and shelf oceans - sediments as a regulator of eutrophication feedbacks
Authors: Hylén, Astrid
E-mail: astrid.hylen@marine.gu.se
Issue Date: 10-Jan-2022
University: Göteborgs universitet. Naturvetenskapliga fakulteten
Institution: Department of Marine Sciences ; Institutionen för marina vetenskaper
Parts of work: Paper I. Nilsson, M. M., Hylén, A., Ekeroth, N., Kononets, M. Y., Viktorsson, L., Almroth-Rosell, E., Roos, P., Tengberg, A., Hall, P. O. J. (2021) Particle shuttling and oxidation capacity of sedimentary organic carbon on the Baltic Sea system scale. Marine Chemistry, 232.
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Paper II. Hylén, A., van de Velde, S. J., Kononets, M. Y., Luo, M., Almroth-Rosell, E., Hall, P. O. J. (2021) Deep-water inflow event increases sedimentary phosphorus release on a multi-year scale. Biogeosciences, 18.
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Paper III. Hylén, A., Bonaglia, S., Robertson, E. K., Marzocchi, U., Kononets, M. Y., Hall, P. O. J. (2022) Enhanced benthic nitrous oxide and ammonium production after natural oxygenation of long-term anoxic sediments. Limnology and Oceanography.
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Paper IV. Hylén, A., Taylor, D., Kononets, M. Y., Lindegarth, M., Stedt, A., Bonaglia, S., Bergström, P. (2021) In situ characterization of benthic fluxes and denitrification efficiency in a newly established mussel farm. Science of the Total Environment, 782.
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Date of Defence: 2022-02-04
Disputation: Fredagen den 4 februari 2022, kl. 13.00, Hörsalen Botanhuset, Carl Skottsbergs gata 22B
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: eutrophication
sediment
deoxygenation
nutrients
benthic chamber landers
Baltic Sea
Abstract: Coastal and shelf systems are under increasing pressure from human activities. Many coastal systems currently suffer from excessive algae growth following increased nutrient input from land, a process called eutrophication. The algae eventually sink to the seafloor, where they are degraded, which consumes oxygen (O2). In severe cases, O2 can become depleted entirely, resulting in mass mortality of animals and substantial changes in the system’s chemical conditions. When the external nutrient inp... more
ISBN: 978-91-8009-638-6 (Print)
978-91-8009-639-3 (PDF)
URI: http://hdl.handle.net/2077/69872
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för marina vetenskaper

 

 

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