Summary
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1.
The zooplankton and the zoobenthos of the White Nile in the Republic of the Sudan were studied from November 1963 to April 1964.
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2.
The investigated region included the White Nile river with its tributaries, the flood-plain water bodies of the south of the Sudan and Jebel-Aulia reservoir.
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3.
The zooplankton and the zoobenthos of the Upper Nile were monotonous. The abundance of the zooplankton was very low (did not exceed 0.015 g/m3). In this region the general biomass of the benthos was also low and fluctuated from 0 to 5 g/m2.
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4.
The zooplankton and the bottom fauna in the flood-plain water bodies were better although it is also poor. The influence of papyrus swamps on the abundance of the zooplankton was established.
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5.
Favorable conditions for plankton animals are found only in the northern part of the reservoir where a return of the river regime is noted. The benthos of the reservoir was distributed unequally. The southern part of the reservoir is rich; towards the centre of it the biomass of the benthos decreases and near the dam it is very poor.
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Monakov, A.V. The Zooplankton and the Zoobenthos of the White Nile and Adjoining waters in the Republic of the Sudan. Hydrobiologia 33, 161–185 (1969). https://doi.org/10.1007/BF00034918
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DOI: https://doi.org/10.1007/BF00034918