umu.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Can Humic Water Discharge Counteract Eutrophication in Coastal Waters?
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Umeå marina forskningscentrum (UMF). (Arcum ; EcoChange ; UMFpub)
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap. (Arcum)
Vise andre og tillknytning
2013 (engelsk)Inngår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 8, nr 4, s. e61293-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A common and established view is that increased inputs of nutrients to the sea, for example via river flooding, will cause eutrophication and phytoplankton blooms in coastal areas. We here show that this concept may be questioned in certain scenarios. Climate change has been predicted to cause increased inflow of freshwater to coastal areas in northern Europe. River waters in these areas are often brown from the presence of high concentrations of allochthonous dissolved organic carbon ( humic carbon), in addition to nitrogen and phosphorus. In this study we investigated whether increased inputs of humic carbon can change the structure and production of the pelagic food web in the recipient seawater. In a mesocosm experiment unfiltered seawater from the northern Baltic Sea was fertilized with inorganic nutrients and humic carbon (CNP), and only with inorganic nutrients (NP). The system responded differently to the humic carbon addition. In NP treatments bacterial, phytoplankton and zooplankton production increased and the systems turned net autotrophic, whereas the CNP-treatment only bacterial and zooplankton production increased driving the system to net heterotrophy. The size-structure of the food web showed large variations in the different treatments. In the enriched NP treatments the phytoplankton community was dominated by filamentous >20 mu m algae, while in the CNP treatments the phytoplankton was dominated by picocyanobacteria <5 mu m. Our results suggest that climate change scenarios, resulting in increased humic-rich river inflow, may counteract eutrophication in coastal waters, leading to a promotion of the microbial food web and other heterotrophic organisms, driving the recipient coastal waters to net-heterotrophy.

sted, utgiver, år, opplag, sider
2013. Vol. 8, nr 4, s. e61293-
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-72705DOI: 10.1371/journal.pone.0061293ISI: 000317908700020OAI: oai:DiVA.org:umu-72705DiVA, id: diva2:626943
Tilgjengelig fra: 2013-06-10 Laget: 2013-06-10 Sist oppdatert: 2018-06-08bibliografisk kontrollert

Open Access i DiVA

fulltext(764 kB)394 nedlastinger
Filinformasjon
Fil FULLTEXT02.pdfFilstørrelse 764 kBChecksum SHA-512
6f150e668239a15771dc523abbddea67f9e0a6690e50a1e4b4c76e19eed34acde1aaec09573e214adace0454ad62b967da0f02c5ba6b050eb8c15937746ebf01
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Personposter BETA

Andersson, AgnetaRowe, Owen F.Karlsson, Jan

Søk i DiVA

Av forfatter/redaktør
Andersson, AgnetaRowe, Owen F.Karlsson, Jan
Av organisasjonen
I samme tidsskrift
PLoS ONE

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 394 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 974 treff
RefereraExporteraLink to record
Permanent link

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