sh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Reconstructing the history of eutrophication and quantifying total nitrogen reference conditions in Bothnian Sea coastal waters
Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.ORCID iD: 0000-0002-6763-1697
University of Bergen.
Stockholm University.
2017 (English)In: Estuarine, Coastal and Shelf Science, ISSN 0272-7714, E-ISSN 1096-0015, Vol. 198, 320-328 p.Article in journal (Refereed) Published
Abstract [en]

Reference total nitrogen (TN) concentrations for the Gårdsfjärden estuary in the central Bothnian Sea, which receives discharge from an industrial point-source, have been estimated from diatom assemblages using a transfer function. Sedimentological and diatom evidence imply a good ecological status before 1920 with an assemblage dominated by benthic taxa indicating excellent water transparency, high diatom species richness and less organic sedimentation resulting in homogeneous well oxygenated sediments. A change in the diatom assemblage starts between 1920 and 1935 when the species richness declines and the proportion of planktic taxa increases. Increased organic carbon sedimentation after 1920 led to hypoxic bottom waters, and the preservation of laminae in the sediments. The trend in the reconstructed TN-values agrees with the history of the discharge from the mill, reaching maximum impact during the high discharge between 1945 and 1990. The background condition for TN in Gårdsfjärden is 260-300 μg L-1, reconstructed until 1920.

Place, publisher, year, edition, pages
2017. Vol. 198, 320-328 p.
Keyword [en]
Baltic Sea, Nitrogen reconstruction, Diatoms, Transfer function, Water framework directive, BSAP
National Category
Earth and Related Environmental Sciences
Research subject
Environmental Studies; Politics, Economy and the Organization of Society
Identifiers
URN: urn:nbn:se:sh:diva-30837DOI: 10.1016/j.ecss.2016.07.015Local ID: 1562/3.1.1/2013OAI: oai:DiVA.org:sh-30837DiVA: diva2:967463
Projects
DEFINE
Funder
Nordic Council of Ministers, 04NUT9EU, FP7, Seventh Framework Programme, EVK3-CT-2000-00031The Foundation for Baltic and East European Studies, 1562/3.1.1/2013
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2017-12-14

Open Access in DiVA

fulltext(2472 kB)0 downloads
File information
File name FULLTEXT02.pdfFile size 2472 kBChecksum SHA-512
26df40fe36e1f8937097df4352bcf536274108e7fcab94dfa1309a5ce8e265d4ecc63c9ba31b30ab083fcabbe32362c25530ccfee73e8dc9dc01fbeba8322fb3
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Andrén, Elinor
By organisation
Environmental Science
In the same journal
Estuarine, Coastal and Shelf Science
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 505 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf