IVL Svenska Miljöinstitutet

ivl.se
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Sediment studies in the Stockholm archipelago 2008
IVL Svenska Miljöinstitutet.
IVL Svenska Miljöinstitutet.
2009 (Engelska)Rapport (Övrigt vetenskapligt)
Abstract [sv]

A clear indication of improved benthic conditions was found when sediment investigations from the 1990s were repeated in the inner Stockholm archipelago during 2008. In a majority of the investigated areas the surface sediments were oxidized and signs of bioturbation were observed. In the 1990s these areas were dominated by black and laminated surface sediments. When comparing the interpretation of sediment status versus macrozoobenthos data a clear congruence was found. The magnitude of sediment phosphorus (P) turnover in the Stockholm archipelago was closely linked to the sediment accumulation rate. Improvement of the oxygen status in the surface sediment layer have resulted in a temporary accumulation of iron (Fe) bound P. This P might reach high concentrations, and represents a withdrawal of P that otherwise would support primary production. Whether this Fe-P mainly did precipitate in the water column and did settle to the sediment, or if it formed in the oxygenated surface sediment layer due to diffusion of dissolved P and Fe from deeper sediment layers remains uncertain.

Abstract [en]

A clear indication of improved benthic conditions was found when sediment investigations from the 1990s were repeated in the inner Stockholm archipelago during 2008. In a majority of the investigated areas the surface sediments were oxidized and signs of bioturbation were observed. In the 1990s these areas were dominated by black and laminated surface sediments. When comparing the interpretation of sediment status versus macrozoobenthos data a clear congruence was found. The magnitude of sediment phosphorus (P) turnover in the Stockholm archipelago was closely linked to the sediment accumulation rate. Improvement of the oxygen status in the surface sediment layer have resulted in a temporary accumulation of iron (Fe) bound P. This P might reach high concentrations, and represents a withdrawal of P that otherwise would support primary production. Whether this Fe-P mainly did precipitate in the water column and did settle to the sediment, or if it formed in the oxygenated surface sediment layer due to diffusion of dissolved P and Fe from deeper sediment layers remains uncertain.

Ort, förlag, år, upplaga, sidor
IVL Svenska Miljöinstitutet, 2009.
Serie
B-rapport ; B1894
Nyckelord [sv]
laminated sediments, hypoxia, phosphorus dynamics, benthic macrofauna, Stockholm archipelago
Identifikatorer
URN: urn:nbn:se:ivl:diva-2731OAI: oai:DiVA.org:ivl-2731DiVA, id: diva2:1552175
Tillgänglig från: 2021-05-05 Skapad: 2021-05-05 Senast uppdaterad: 2021-05-18Bibliografiskt granskad

Open Access i DiVA

fulltext(2130 kB)36 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 2130 kBChecksumma SHA-512
a3c2245c692517f9ec0f43a19d0bfa7474e4d9446a2d82ecf2872b4381e02f70d6bcf13a2f7b2561dcd14b0ab27044f76648c8ea57b9f1c8a7fdea269b239995
Typ fulltextMimetyp application/pdf

Sök vidare i DiVA

Av författaren/redaktören
Karlsson, MagnusMalmaeus, Mikael
Av organisationen
IVL Svenska Miljöinstitutet

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 36 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 25 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf