Articles | Volume 16, issue 7
https://doi.org/10.5194/bg-16-1381-2019
https://doi.org/10.5194/bg-16-1381-2019
Research article
 | 
04 Apr 2019
Research article |  | 04 Apr 2019

Diurnal regulation of photosynthetic light absorption, electron transport and carbon fixation in two contrasting oceanic environments

Nina Schuback and Philippe D. Tortell

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Cited articles

Alderkamp, A.-C., Mills, M. M., Van Dijken, G. L., Laan, P., Thuró Czy, C.-E., Gerringa, L. J. A., De Baar, H. J. W., Payne, C. D., Visser, R. J. W., Buma, A. G. J., and Arrigo, K. R.: Iron from melting glaciers fuels phytoplankton blooms in the Amundsen Sea (Southern Ocean): Phytoplankton characteristics and productivity, Deep-Sea Res. Pt. II, 71–76, 32–48, https://doi.org/10.1016/j.dsr2.2012.03.005, 2012. 
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Babin, M., Morel, A., Claustre, H., Bricaud, A., Kolber, Z., and Falkowski, P. G.: Nitrogen- and irradiance-dependent variations of the maximum quantum yield of carbon fixation in eutrophic, mesotrophic and oligotrophic marine systems, Deep-Sea Res. Pt. I, 43, 1241–1272, https://doi.org/10.1016/0967-0637(96)00058-1, 1996a. 
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Short summary
Understanding the dynamics of primary productivity requires mechanistic insight into the coupling of light absorption, electron transport and carbon fixation in response to environmental variability. Measuring such rates over diurnal timescales in contrasting regions allowed us to gain information on the regulation of photosynthetic efficiencies, with implications for the interpretation of bio-optical data, and the parameterization of models needed to monitor productivity over large scales.
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