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Research Paper
Oxygen Productivity of Planktonic Algae under Fluctuating and Constant Light Conditions
Article first published online: 10 NOV 2011
DOI: 10.1002/iroh.201111277
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
1522-2632/asset/cover.gif?v=1&s=171ee7e8e039831a227c55d37c5e56fd5c8015c8 "International Review of Hydrobiology")
Additional Information
How to Cite
Gervais, F. (2011), Oxygen Productivity of Planktonic Algae under Fluctuating and Constant Light Conditions. International Review of Hydrobiology, 96: 622–630. doi: 10.1002/iroh.201111277
Publication History
- Issue published online: 10 NOV 2011
- Article first published online: 10 NOV 2011
- Manuscript Revised: 29 DEC 2011
- Manuscript Accepted: 4 FEB 2011
- Manuscript Received: 29 AUG 2010
Funded by
- DFG grant
- Abstract
- References
- Cited By
Keywords:
- phytoplankton;
- light;
- mixing;
- photosynthesis;
- incubator
Abstract
Net oxygen productivity in cultures of Monoraphidium minutum, Cryptomonas sp. and Planktothrix agardhii exposed to fluctuating and constant light conditions was measured in a laboratory incubator. The fluctuating light climate simulated a linear up and down movement in a 2 m water column at 4 different ratios of euphotic depth to mixing depth. In addition, cultures were kept at a constant light climate simulating static incubation at 0, 0.5, 1 and 2 m depth and at the depth of the mean irradiance, respectively. Integral productivity in the simulated water column was lowest when algae were incubated at constant light in different depths, highest when the algae were incubated at constant mean photon flux density (PFD) and intermediate under fluctuating light. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)