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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 1835

Walter Koste and Wolfgang Tobias; [Rotifers of the man-made Sankarani-Lake, tributary to the Niger River, Republic Mali, West-Africa]. Arch.Hydrobiol. 108(4):499-515, 1987

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Rotifers were identified in several plankton samples from the Selingue man-made Lake (river Sankarani, tributary to the Niger River), taken in the years 1982 and 1985. Only 12 taxa out of 54 are of tropical and subtropical origin, the remaining ones are considered to be cosmopolitan. Four rotifer taxa Collotheca ornata natans (Tschugunoff, 1921), Ptygura libera Myers 1934, Testudinella brevicaudata Yamamoto, 1951 including the newly described Keratella maliensis n. sp. are new records for the African fauna. The community structure of rotifers reveals gradual changes which manifest themselves in the increasing diversity. Diversity differences were observed between the roots of the man-made lake and the deeper parts of the water body located closer to the damsite. In the former location establishes now the swamp vegetation assuming locally the sudd formation.