The influence of wetlands in regulating water quality in the Seronera River, Serengeti National Park, Tanzania
- 99 Downloads
The distribution of temperature, salinity, visibility and dissolved oxygen was sampled from 1996 to 2002 at sites along the Seronera River. The minimum temperature decreased with distance upstream. The salinity increased up-river where occasionally hypersaline conditions prevailed. Dissolved oxygen was highly variable spatially and temporally, depending on both the level of eutrophication by animal dung and the presence of wetlands that help filter the excess nutrients. During the study period, fringing, freshwater wetlands have generally been degraded and in some cases destroyed, and this has been accompanied by significantly decreased oxygen levels, sometimes nearing anoxic conditions. Also during this period, saltwater wetlands have increased, and since wildlife impacted these wetlands little, dissolved oxygen levels remained high throughout. Visibility was highest in areas fringed by wetlands.
Key wordsrivevine wetlands rainfall-runoff dissolved oxygen salinity wildlife Serengeti Tanzania
Unable to display preview. Download preview PDF.
- CIMU. 2003. Aerial Census in the Serengeti Ecosystem, Wet Season, Preliminary Report. Tanzania Wildlife Research Institute, Arusha, Tanzania.Google Scholar
- Dublin H.T. and Douglas-Hamilton I. 1987. Status and trend of elephants in the Serengeti-Mara ecosystem. African Journal of Ecology 25: 19–33.Google Scholar
- Gereta E. and Wolanski E. 1998. Water quality-wildlife interaction in the Serengeti National Park, Tanzania. African Journal of Ecology 36(1): 1–14.Google Scholar
- Gereta E., Wolanski E., Borner M. and Serneels S. 2002. Use of an ecohydrological model to predict the impact on the Serengeti ecosystem of deforestation, irrigation and the proposed Amala weir water diversion project in Kenya. Ecohydrology and Hydrobiology 2: 127–134.Google Scholar
- Sinclair A.R. and Arcese P. 1995. Serengeti II: Dynamics, Management and Conservation of an Ecosystem. University of Chicago Press, Chicago.Google Scholar
- TWCM. 1999. Serengeti Aerial Census. Tanzania Wildlife Conservation Monitoring, Arusha, Tanzania.Google Scholar
- Verschuren J. 1993. Exploration du Parc National des Virungas. Les habitats et la grande faune: evolution et situation recente. Foundation pour Favoriser les Recherches Scientifiques en Afrique, Bruxelles.Google Scholar
- Wolanski E. and Gereta E. 1999. Oxygen cycles in a hippo pool, Serengeti National Park, Tanzania. African Journal of Ecology. 37: 419–423.Google Scholar
- Wolanski E. and Gereta E. 2001. Water quantity and quality as the factors driving the Serengeti ecosystem, Tanzania. Hydrobiologia 458: 169–180.Google Scholar
- Wolanski E., Gereta E., Borner M. and Mduma S. 1999. Water, migration and the Serengeti ecosystem. American Scientist 87: 526–533.Google Scholar