umu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • 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
Mixing depth and allochthonous dissolved organic carbon: controlling factors of coastal trophic balance
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Umeå marina forskningscentrum (UMF). (Marin ekologi ; EcoChange; UMFpub; mesokosm)
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Umeå marina forskningscentrum (UMF). (Johan Wikner ; Arcum ; EcoChange)ORCID-id: 0000-0001-6061-8257
2016 (Engelska)Ingår i: Marine Ecology Progress Series, ISSN 0171-8630, E-ISSN 1616-1599, Vol. 561, s. 17-29Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

ABSTRACT: The interacting effects of different mixing depths and increased allochthonous dissolved organic carbon (DOC) on the ratio of heterotrophic to autotrophic production (i.e. trophic balance) was evaluated in a mesocosm study with a stratified water column. An autumn plankton community from the northern Bothnian Sea showed significantly decreased phytoplankton production and somewhat increased bacterial production with added DOC. In addition, increased mixing depth further reduced phytoplankton production. With a deep pycnocline and added DOC, the system became net-heterotrophic, with an average bacteria-to-phytoplankton production ratio of 1.24. With a deep pycnocline without added DOC, the trophic balance was changed to 0.44 (i.e. autotrophic). With a shallow pycnocline, the system remained net-autotrophic irrespective of DOC addition. We propose that increased precipitation in northern Europe due to climate change may result in changed density stratification and increased allochthonous DOC transport to the sea, leading to more heterotrophic coastal aquatic ecosystems. Such a scenario may entail reduced biological production at higher trophic levels and enhanced CO2 emission to the atmosphere.

Ort, förlag, år, upplaga, sidor
Oldendorf/Luhe, 2016. Vol. 561, s. 17-29
Nyckelord [en]
marine, ecology, climate, production, plankton, mesocosm, trophic, balance, dissolved organic carbon, stratification
Nationell ämneskategori
Ekologi Mikrobiologi Botanik Zoologi
Identifikatorer
URN: urn:nbn:se:umu:diva-128844DOI: 10.3354/meps11907ISI: 000391695800002OAI: oai:DiVA.org:umu-128844DiVA, id: diva2:1057008
Tillgänglig från: 2016-12-16 Skapad: 2016-12-16 Senast uppdaterad: 2019-03-06Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Personposter BETA

Båmstedt, UlfWikner, Johan

Sök vidare i DiVA

Av författaren/redaktören
Båmstedt, UlfWikner, Johan
Av organisationen
Umeå marina forskningscentrum (UMF)Institutionen för ekologi, miljö och geovetenskap
I samma tidskrift
Marine Ecology Progress Series
EkologiMikrobiologiBotanikZoologi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 834 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • 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