Photosynthesis-light relationships of a mixed culture of phytoplankton in fluctuating light
Rates of oxygen production and inorganic carbon uptake by a mixed culture of phytoplankton were determined in a highly variable light regime. Scatter diagrams of the results revealed a smoothly varying relationship between irradiance and photosynthetic oxygen release except when the rate of oxygen r...
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| Veröffentlicht in: | Limnology and oceanography 1980-11, Vol.25 (6), p.1082-1092 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | Rates of oxygen production and inorganic carbon uptake by a mixed culture of phytoplankton were determined in a highly variable light regime. Scatter diagrams of the results revealed a smoothly varying relationship between irradiance and photosynthetic oxygen release except when the rate of oxygen release was depressed by CO2depletion. There was no indication that the instantaneous rate of oxygen production depended on light intensities received in the recent (5-30 min) past. However, the net rate of inorganic carbon uptake exhibited large, transient fluctuations in responde to rapid changes in light as CO2became depleted$( |
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| ISSN: | 0024-3590 1939-5590 |
| DOI: | 10.4319/lo.1980.25.6.1082 |