Perspectives in Southern Hemisphere Limnology : Proceedings of a Symposium, Held in Wilderness, South Africa, July 3–13, 1984

This book contains the Proceedings of the Symposium on Perspectives in Southern Hemisphere Limnology which was held from 3-13 July 1984 in Wilderness, South Africa. It can be asked why this Symposium was necessary at a time when conferences, symposia and other gatherings of learned people abound. Limnologists in the Southern Hemisphere have for some time been pointing out that limnological theory and inland water management practices have been developed almost exclusively in Northern Hemisphere temperate latitudes. Most of the land masses of the Southern Hemisphere fall within lower latitudes, 0 from 20-40 S, where the climate tends to be dry, with low cloud cover and with high levels of incident radiation and high water temperatures. Wide extremes are experienced in both rainfall and runoff, which occur mainly in summer. Sedimentary geological structures give rise to dispersive soils and highly turbid waters. Physiological, behavioural or developmental adaptations in the floral and faunal components are necessary to cope with desiccation and low visibility. Front Matter....Pages I-XIV Perspectives in Southern Hemisphere limnology: Introduction....Pages 1-5 Thermal characteristics of standing waters: an illustration of dynamic processes....Pages 7-29 Thermal characteristics of running waters....Pages 31-46 Thermal stability and phytoplankton distribution....Pages 47-69 Thermal characteristics: Chairman’s summary....Pages 71-73 Hydrology of low latitude Southern Hemisphere land masses....Pages 75-83 Biotic adaptations in temporary lentic waters, with special reference to those in semi-arid and arid regions....Pages 85-110 A review of the ecological effects of river regulation in Australia....Pages 111-129 Aridity and hydrological characteristics: Chairman’s summary....Pages 131-136 Seasonality/aseasonality of aquatic macrophytes in Southern Hemisphere inland water....Pages 137-150 Seasonality of aquatic invertebrates in low-latitude and Southern Hemisphere inland waters....Pages 151-178 Seasonality in Southern Hemisphere freshwater phytoplankton assemblages....Pages 179-190 Seasonality/aseasonality: Chairman’s summary....Pages 191-194 Effects of suspensoids (turbidity) on penetration of solar radiation in aquatic ecosystems....Pages 195-208 Interactions of detrital particulates and plankton....Pages 209-220 The effects of suspensoids on fish....Pages 221-241 Suspensoids and turbidity: Chairman’s summary....Pages 243-245 Back Matter....Pages 247-263 Proceedings of the Symposium on Perspectives in Southern Hemisphere Limnology held in Wilderness, South Africa, 3-13 July 1984