Umeå universitets logga

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
Biomass, community composition and N:P recycling ratios of zooplankton in northern high-latitude lakes with contrasting levels of N deposition and dissolved organic carbon
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap.ORCID-id: 0000-0001-5102-4289
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap. Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden.ORCID-id: 0000-0002-3246-7508
Watershed Management Division, Vermont Department of Environmental Conservation, VT, Montpelier, United States.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för ekologi, miljö och geovetenskap.
Visa övriga samt affilieringar
2022 (Engelska)Ingår i: Freshwater Biology, ISSN 0046-5070, E-ISSN 1365-2427, Vol. 67, nr 9, s. 1508-1520Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
  1. Global changes are causing decreases in inorganic nitrogen (N) concentrations, increases in coloured dissolved organic carbon (DOC) concentrations, and decreases in dissolved inorganic N to total phosphorus ratios (DIN:TP) in northern lakes. The effects of these changes on phytoplankton and zooplankton biomass and the N:P recycling ratio of zooplankton remain unresolved.
  2. In 33 Swedish headwater lakes across subarctic-to-boreal gradients with different levels of N deposition (low N in the north [Västerbotten, boreal; Abisko, subarctic] vs. high N in the south [Värmland, boreal; Jämtland, subarctic]), we measured water chemistry, phytoplankton biomass (chlorophyll-a [Chl-a], Chl-a:TP), seston mineral quality (C:P, N:P), as well as zooplankton biomass, community composition, and C:N:P stoichiometry. We estimated nutrient imbalances and the N:P recycling ratios of zooplankton using ecological stoichiometry models.
  3. There was a large-scale gradient from low lake DIN and DIN:TP in the north to high DIN and DIN:TP in the south, with lower DIN:TP in lakes coinciding with higher DOC within each region. Lower lake DIN was associated with lower phytoplankton biomass (lower Chl-a:TP). Lower lake DIN:TP was associated with richer seston mineral quality (lower seston C:P and N:P) and higher zooplankton biomass.
  4. Zooplankton community composition differed in the north vs. south, with a dominance of N-requiring calanoid copepods with high N:P in the north and P-requiring cladocerans with low N:P in the south. Also, greater differences in zooplankton community composition were found between subarctic regions (with lower DOC) than between boreal regions (with higher DOC), suggesting that increases in lake DOC and associated declines in lake DIN:TP reduce differences in zooplankton community composition.
  5. The combination of lower lake DIN, higher lake DOC, and lower lake DIN:TP led to reduced zooplankton N:P recycling ratios, possibly by reducing seston N:P and/or by enhancing calanoid copepod dominance in the zooplankton community.
  6. Our findings suggest that the combination of declining N deposition and increasing lake browning in northern high-latitude lakes will reduce phytoplankton biomass, but will concurrently enhance seston mineral quality and probably also zooplankton biomass and their recycling efficiency of P relative to N.
Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2022. Vol. 67, nr 9, s. 1508-1520
Nyckelord [en]
biomass, C:N:P stoichiometry, community composition, plankton, subarctic-to-boreal
Nationell ämneskategori
Ekologi Oceanografi, hydrologi och vattenresurser
Identifikatorer
URN: urn:nbn:se:umu:diva-197728DOI: 10.1111/fwb.13956ISI: 000814334600001Scopus ID: 2-s2.0-85132336700OAI: oai:DiVA.org:umu-197728DiVA, id: diva2:1680369
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, 2016.0083Vetenskapsrådet, 621‐2014‐5909Tillgänglig från: 2022-07-04 Skapad: 2022-07-04 Senast uppdaterad: 2023-03-23Bibliografiskt granskad

Open Access i DiVA

fulltext(3833 kB)114 nedladdningar
Filinformation
Filnamn FULLTEXT02.pdfFilstorlek 3833 kBChecksumma SHA-512
594becf647415dd6b20707efc9340151c5f16bb6113a650770fe48d4121ab8b3ebfa343f64b94a5afaedd3ef65d87a4d12ba7c48293c8f49bd806b1a2ae98a67
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltextScopus

Person

Bergström, Ann-KristinLau, Danny C. P.Jonsson, Anders

Sök vidare i DiVA

Av författaren/redaktören
Bergström, Ann-KristinLau, Danny C. P.Jonsson, Anders
Av organisationen
Institutionen för ekologi, miljö och geovetenskap
I samma tidskrift
Freshwater Biology
EkologiOceanografi, hydrologi och vattenresurser

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 132 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 223 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