Photosynthetic Production of a Brackish Water Community of Chara tomentosa L. and its Dependence on Environmental Conditions
✍ Scribed by Prof. Dr. Eike Libbert; Dr. Thomas Walter
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 691 KB
- Volume
- 70
- Category
- Article
- ISSN
- 1434-2944
No coin nor oath required. For personal study only.
✦ Synopsis
Net photosynthesis and dark respiration of a natural Chara tomentosa community were continuously recorded. There is a close correlation between net rate of photosynthesis and variations in the PhAR flux under water. The net photosynthesis fluence Px correlates with the PhAR fluence Iz, but the quotient Px/Ix varies seasonally, apparently as a consequence of variations in chlorophyll content following long-range changes in radiation fluence. No influence of temperature, salinity or pH on net photosynthesis was detected, but water temperature stimulates dark respiration and consequently diminishes net primary production.
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