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
Carbon sequestration and stoichiometry of motile and nonmotile green algae
Visa övriga samt affilieringar
2009 (Engelska)Ingår i: Limnology and Oceanography, Vol. 54, nr 5, s. 1746-1752Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Actively motile, flagellated phytoplankton taxa often exploit vertical gradients in the availability of light and nutrients. The ability to move actively usually goes along with low investment in structural carbon components and should entail costs in terms of increased energy expenditure. This should be reflected in higher metabolic rates and higher light requirements for growth and, consequently, in lower light-dependent specific production rates, carrying capacities, and carbon-to-phosphorus (C : P) ratios (during phosphorus limitation) of flagellated compared to nonmotile taxa. Laboratory experiments with four flagellated and five nonmotile species of green algae, performed over a light gradient, corroborated these expectations. Parameter fits to short-term production-irradiance measurements suggest that flagellated taxa had higher respiration rates and higher light requirements for growth than nonmotile taxa. Accordingly, both short-term photosynthetic rates and longer-term (14 d) biomass accrual were lower for flagellated than for nonmotile taxa. While most of the variance in algal C : P ratios was explained by species-specific effects, there was also a tendency for algal C : P ratios to be lower in flagellated that in nonmotile taxa. Collectively, these results point at significant costs of motility, which may explain why flagellated taxa are often outcompeted by nonmotile taxa in turbulently mixed environments, where active motility is of little use.

Ort, förlag, år, upplaga, sidor
2009. Vol. 54, nr 5, s. 1746-1752
Identifikatorer
URN: urn:nbn:se:umu:diva-31465ISI: 000268325300030ISBN: 0024-3590 (tryckt)OAI: oai:DiVA.org:umu-31465DiVA, id: diva2:293175
Anmärkning
Striebel, Maren Bartholme, Silvia Zernecke, Rebekka Steinlein, Christina Haupt, Florian Diehl, Sebastian Stibor, HerwigTillgänglig från: 2010-02-10 Skapad: 2010-02-10 Senast uppdaterad: 2018-06-08

Open Access i DiVA

Fulltext saknas i DiVA

Personposter BETA

Diehl, S.

Sök vidare i DiVA

Av författaren/redaktören
Diehl, S.
Av organisationen
Ekologi, miljö och geovetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetricpoäng

isbn
urn-nbn
Totalt: 213 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