Eco-physiological consequences of fluctuating light on phytoplankton
Dissertation, Universität Potsdam, 2020
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| Sprache: | eng |
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Potsdam
2019
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Tag hinzufügen | Zusammenfassung: | Dissertation, Universität Potsdam, 2020 Phytoplankton growth depends not only on the mean intensity but also on the dynamics of the light supply. The nonlinear light-dependency of growth is characterized by a small number of basic parameters: the compensation light intensity PARcompμ, where production and losses are balanced, the growth efficiency at sub-saturating light αµ, and the maximum growth rate at saturating light µmax. In surface mixed layers, phytoplankton may rapidly move between high light intensities and almost darkness. Because of the different frequency distribution of light and/or acclimation processes, the light-dependency of growth may differ between constant and fluctuating light. Very few studies measured growth under fluctuating light at a sufficient number of mean light intensities to estimate the parameters of the growth-irradiance relationship. Hence, the influence of light dynamics on µmax, αµ and PARcompμ are still largely unknown. By extension, accurate modelling predictions of phytoplankton development under fluctuating light exposure remain ... |
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| Beschreibung: | kumulative Dissertation |
| Beschreibung: | 161 Seiten Illustrationen, Diagramme |