Summary
A chemical and biological survey of the Tugela river, Natal is described. Some relationships between physical and chemical conditions in the river and the geology and climate of the basin are indicated. The flora and fauna of the main river is described, and the zonation of species in the river, and seasonal variations in the communities at various stations in the zones are delineated.
Some relationships between the physical and chemical conditions in the basin, and the distribution and seasonal variations of the biological communities are indicated. Comparisons are made with other rivers. It is concluded that the Tugela river as a type in Southern Africa, falls intermediate between temperate and sub-tropical conditions.
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Oliff, W.D. Hydrobiological studies on the Tugela river system. Hydrobiologia 14, 281–332 (1960). https://doi.org/10.1007/BF00162106
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DOI: https://doi.org/10.1007/BF00162106