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Influence of vertical mixing on light‐dependency of phytoplankton growth

  1. Köhler, Jan ORCID logo
  2. Wang, Lang
  3. Guislain, Alexis Lucas Norbert ORCID logo
  4. Shatwell, Tom ORCID logo

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1000 Titel
  • Influence of vertical mixing on light‐dependency of phytoplankton growth
1000 Autor/in
  1. Köhler, Jan |
  2. Wang, Lang |
  3. Guislain, Alexis Lucas Norbert |
  4. Shatwell, Tom |
1000 Erscheinungsjahr 2017
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2017-12-04
1000 Erschienen in
1000 Quellenangabe
  • 63(3):1156-1167
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2017
1000 Embargo
  • 2018-12-04
1000 Verlagsversion
  • https://doi.org/10.1002/lno.10761 |
1000 Ergänzendes Material
  • https://aslopubs.onlinelibrary.wiley.com/doi/full/10.1002/lno.10761#support-information-section |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • Phytoplankton growth depends not only on mean intensity but also on the dynamics of the light supply. In surface mixed layers, phytoplankton may rapidly move between strong light and almost darkness. The nonlinear light‐dependency of growth may differ between constant and fluctuating light because of the different frequency distribution of light and/or acclimation processes. The present study compares for the first time light‐dependency of photosynthesis and growth of phytoplankton communities in situ under defined mixing conditions and at fixed depths. Maximum growth rates per day were not significantly different, but the growth efficiency was much higher under constant light than under fluctuating light of sub‐saturating daily irradiance. Phytoplankton incubated under fluctuating light needed about three times higher mean daily irradiances to balance photosynthesis and losses than under constant light. The difference in growth efficiency was mostly caused by the different frequency distribution of underwater light, as was estimated by a photosynthesis model of sufficient temporal resolution. The present study indicates a considerable overestimation of phytoplankton growth at sub‐saturating light in well‐mixed water layers by the common growth measurements under constant light. This implies an underestimation of the compensation light intensities and respective overestimations of the critical mixing depths.
1000 Sacherschließung
lokal photosynthesis
lokal algal dynamics
lokal turbulent mixing
lokal Three Gorges reservoir
lokal functional traits
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. http://orcid.org/0000-0003-1894-2912|https://frl.publisso.de/adhoc/creator/V2FuZywgTGFuZw==|http://orcid.org/0000-0003-4176-4878|http://orcid.org/0000-0002-4520-7916
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1000 Dateien
  1. Influence of vertical mixing on light‐dependency of phytoplankton growth
    Influence of vertical mixing on light‐dependency of phytoplankton growth
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    Wiley Self-Archiving
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1000 Erstellt am 2018-08-22T15:34:54.234+0200
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