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The influence of wetlands, decaying organic matter, and stirring by wildlife on the dissolved oxygen concentration in eutrophicated water holes in the Seronera River, Serengeti National Park, Tanzania
- Source :
- Wetlands Ecology and Management. 14:421-425
- Publication Year :
- 2006
- Publisher :
- Springer Science and Business Media LLC, 2006.
-
Abstract
- The dissolved oxygen concentration (DO) was sampled during a diurnal cycle in three water holes heavily used by wildlife and with distinctive biological features along the Seronera River. The DO fluctuated widely (by up to 11.5 mg l−1) as a function of time, mechanical stirring and aeration by animals, and the presence of fringing wetlands. The DO cycle was successfully modeled (within 0.3 mg l−1) by assuming that the four dominant processes were photosynthesis and respiration by algae near the surface, trapping by wetlands, decomposition of dead organic matter on the bottom, and stirring/aeration by hippos. The rate of DO decline from the decay of dead organic matter was equal to the rate of DO removal by algal respiration at night.
- Subjects :
- Hydrology
chemistry.chemical_classification
geography
geography.geographical_feature_category
biology
Wetland
Management, Monitoring, Policy and Law
Aquatic Science
biology.organism_classification
Photosynthesis
Decomposition
chemistry
Algae
Diurnal cycle
Respiration
Environmental science
Organic matter
Aeration
Ecology, Evolution, Behavior and Systematics
Subjects
Details
- ISSN :
- 15729834 and 09234861
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Wetlands Ecology and Management
- Accession number :
- edsair.doi...........a4347b18ba47d5f5a0745ee11fb05a83