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JOURNAL OF PLANKTON RESEARCH | VOLUME 19 | NUMBER 1 | PAGES 43-62 | 1997
© Oxford University Press
research-article |
Spatial and temporal variations in the composition and density of crustacean plankton in the five basins of Lake Kariba, Zambia-Zimbabwe
University of Zimbabwe, Lake Kariba Research Station PO Box 48, Kariba, Zimbabwe
Received on September 2, 1995; accepted on August 8, 1996
Lake Kariba is a man-made reservoir which is now over 30 years old. The reservoir was built on the Zambezi river on the border between Zambia and Zimbabwe. The crustacean zooplankton of this man-made lake were studied over 3 years from March 1986 to February 1988. This period included three seasons (i) warm, rainy season, (ii) cool, dry season and (iii) warm, dry season which have a major influence on the limnology of the lake. Crustacean plankton species composition and abundance varied among the five basins. The most upstream basin had the highest number of species and highest densities at all the sampling times over the period of this study. There was both spatial and temporal heterogeneity in species composition and abundance along the long axis of the lake.
1Present address: Department of Biological Science, University of Botswana, P. Bag 0022, Gaborone, Botswana
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