Some implications of inter-basin water transfers for river ecosystem functioning and water resources management in southern Africa

References

• Alexander , W.J.R. 1985 . “ Hydrology of low-latitude Southern Hemisphere land masses ” . In Perspectives in Southern Hemisphere Limnology. Developments in Hydrobiology , Edited by: Davies , B.R. and Walmsley , R.D. Vol. 28 , 75 – 83 . Dordrecht : Dr. W. Junk . In
   Google Scholar
• Bailey , R.G. and Cobb , S.M. 1984 . A note on some investigations carried out in the area of the Sudan Plain to be affected by the Jonglei Canal . Hydrobiologia , 110 : 45 – 46 .
   Web of Science ®Google Scholar
• Beadle , L.C. 1981 . The Inland Waters of Tropical Africa: an introduction to tropical limnology , 2nd Edition , New York and London : Longman .
   Google Scholar
• Benade , C. 1993 . “ Management proposals for the regulated Orange River system within the borders of the Cape Province ” . In Report prepared for the Northern Cape Scientific Services branch of the Cape Nature Conservation and Museums, Kimberley
   Google Scholar
• Bethune , S. and Chivell , E. 1985 . Environmental aspects of the Eastern National Water Carrier . South West African Annual , : 23 – 27 .
   Google Scholar
• Bethune , S. , Puz , A. and Roeis , R. 1984 . “ Changes to water quality due to long distance transport ” . In Internal Report to the Department of Water Affairs, South West Africa/Namibia, Division of Research and Special Investigation, Windhoek
   Google Scholar
• Britton , D.L. 1990a . A study of a Cape Mountain Stream Ecosystem and its Response to fire , Freshwater Research Unit, University of Cape Town . Unpublished Ph.D. Thesis
   Google Scholar
• Britton , D.L. 1990 . Fire and the dynamics of allochthonous detritus in a South African mountain stream . Freshwat. Biol. , 24 : 347 – 360 .
   Web of Science ®Google Scholar
• Cambray , J.A. and Jubb , R.A. 1977 . Dispersal of Fishes via the Orange-Fish Tunnel, South Africa . J. Limnol. Soc. Sth. Afr. , 3 ( 1 ) : 33 – 35 .
   Google Scholar
• Cambray , J.A. and Jubb , R.A. 1977 . The Orange-Fish tunnel . Piscator , 99 : 4 – 6 .
   Google Scholar
• Car , M. 1983 . The influence of water-level fluctuation on the drift of Simulium chutteri Lewis, 1965 (Diptera, Nematocera) in the Orange River, South Africa . Onderst. J. of Vet. Res. , 50 : 173 – 177 .
   PubMed Web of Science ®Google Scholar
• Car , M. and de Moor , F.C. 1984 . The response of the Vaal River drift and benthos to Simulium (Diptera: Nematocera) control using Bacillus thuringiensis var. israelensis (H-14) . Onderst. J. of Vet. Res. , 51 : 155 – 160 .
   PubMed Web of Science ®Google Scholar
• Chang Ming , L. , Dakang , Z. and Yuexian , X. 1985 . “ Water transfer in China: the East Route Project ” . In Large-scale Water Transfers: Emerging Environmental and Social Experiences , United Nations Environmental Programmes, Water Resources Series Edited by: Golubev , G.N. and Biswas , A.K. Vol. 7 , 103 – 118 . Oxford : Tycooly Publishing . In
   Google Scholar
• Charnock , A. 1983 . A new course for the Nile . New Sci. , 27 : 281 – 288 .
   Google Scholar
• Chutter , F.M. 1993a . “ Lesotho Highlands Water Project ” . In Contract 83 — Baseline water quality and aquatic communities study — Phase 1A. Draft Final Report to the Lesotho Highlands Development Authority
   Google Scholar
• Chutter , F.M. 1993b . Lesotho Highlands Project: Impact on Aquatic Ecosystems . Proceedings of the 1993 Water Institute of South Africa (WISA) Conference , 1 : 142 – 153 .
   Google Scholar
• Chutter , F.M. and Ashton , P.J. 1990 . A preliminary report on the impact of Lesotho Highlands Water on the As/Liebenbergsvlei/Wilge River ecosystem , Report no. V/D110/00/E001 Pretoria, , South Africa : Department of Water Affairs and Forestry .
   Google Scholar
• Chutter , F.M. , Ashton , P.J. and Hely-Hutchinson , J.R. 1988 . “ Predicted limnological conditions in Phase 1A of the Lesotho Highlands Development Scheme ” . In Report to the Lesotho Highlands Development Authority, Maseru, Lesotho
   Google Scholar
• Chutter , F.M. and Heath , R.G.M. 1992 . A further relevant environmental impact study of the flow of water transferred from the LHWP to South Africa on ecosystems of the Ash, Liebenbergsvlei, Wilge and Little Caledon Rivers , Report no. V/D110/00/E002 Pretoria, , South Africa : Department of Water Affairs and Forestry .
   Google Scholar
• Clayton , A.J. 1994 . Annual Report of the City Engineer, 1993/1994 , South Africa : Cape Town City Council .
   Google Scholar
• Comrie-Greig , J. 1986 . The ENWC, ‘killer Canal’ or life-giving artery, or both? . African Wildlife , 40 : 68 – 73 .
   Google Scholar
• Conley , A.H. 1995 . “ A synoptic view of water resources in Southern Africa ” . In Paper to South African Department of Water Affairs and Forestry Pretoria
   Google Scholar
• Craig , J.F. and Kemper , J.B. , eds. 1987 . Regulated Streams: Advances in Ecology , New York and London : Plenum Press .
   Google Scholar
• Critchfield , R. 1978 . Crocodiles, cattle and the Jonglei Canal . International Wildlife , 8 : 20 – 25 .
   Google Scholar
• Davies , B.R. and Day , J.A. 1986 . The Biology and Conservation of South Africa's Vanishing Waters , Cape Town : Department of Extra-Mural Studies, University of Cape Town and the Wildlife Society of Southern Africa, Western Cape Branch .
   Google Scholar
• Davies , B.R. and Day , J.A. 1998 . Vanishing Waters , Cape Town : University of Cape Town Press .
   Google Scholar
• Davies , B.R. , O'Keeffe , J.H. and Snaddon , C.D. 1993a . A Synthesis of the Ecological Functioning, Conservation and Management of South African River Ecosystems , Report No. WRC TT62/93 Pretoria, , South Africa : Water Research Commission .
   Google Scholar
• Davies , B.R. , O'Keeffe , J.H. and Snaddon , C.D. 1995 . “ River and stream ecosystems in southern Africa: predictably unpredictable ” . In Rivers and Stream Ecosystems , Edited by: Cushing , C.E. , Cummins , K.W. and Minshall , G.W. 537 – 599 . New York : Elsevier . In
   Google Scholar
• Davies , B.R. , Thoms , M. and Meador , M. 1992 . The ecological impacts of inter-basin water transfers: and their threats to river basin integrity and conservation . Aquat. Conserv.: Mar. and Freshw. Ecosyst , 2 : 325 – 349 .
   Web of Science ®Google Scholar
• Davies , B.R. , Thoms , M. , Walker , K.F. , O'Keeffe , J.H. and Gore , J.A. 1993b . “ Dryland Rivers: Their ecology, conservation and management ” . In The Rivers Handbook , Edited by: Calow , P. and Petts , G.E. Vol. 2 , Oxford : Blackwell Scientific Publications . In
   Google Scholar
• Davies , B.R. and Walker , K.F. 1986 . “ River systems as ecological units: an introduction to the ecology of river systems ” . In The Ecology of River Systems , Monogr. Biol. Edited by: Davies , B.R. and Walker , K.F. Vol. 60 , 1 – 8 . In
   Google Scholar
• de Moor , F.C. 1982 . A community of Simulium species in the Vaal River near Warrenton , Johannesburg : University of the Witwatersrand . Unpublished PhD Thesis
   Google Scholar
• de Moor , F.C. 1986 . “ Invertebrates of the Lower Vaal River, with emphasis on the Simuliidae ” . In The Ecology of River Systems , Monogr. Biol. Edited by: Davies , B.R. and Walker , K.F. Vol. 60 , 135 – 142 . Dordrecht : Dr W. Junk . In
   Google Scholar
• DWA . 1987 . “ Tugela-Vaal Scheme ” . In Pamphlet compiled and issued by the Liaison Division of the Dept of Water Affairs
   Google Scholar
• DWAF . 1985 . The Lesotho Highlands Scheme: A Water Supply, ‘Super Project’. South African Construction World (Johannesburg), Supplement to the Dambuilders: 75 years with the Department of Water Affairs
   Google Scholar
• DWAF . 1986 . Management of the Water Resources of the Republic of South Africa , Pretoria : Department of Water Affairs .
   Google Scholar
• DWAF . 1991a . Water supply to the Eastern Transvaal Highveld , Pretoria : Pumphlet compiled and issued by Liaison Services, Department of Water Affairs .
   Google Scholar
• DWAF . 1991b . Waterdata , Pretoria : Department of Water Affairs . Pamphlet issued by Liaison Services
   Google Scholar
• DWAF . 1994 . Water Supply and Sanitation Policy , Government White Paper on Water — an Indivisible National Asset Pretoria : Department of Water Affairs .
   Google Scholar
• Gavaghan , H. 1986 . A Saline Solution to Israel's Drought . New Sci. , : 26 – 27 .
   Web of Science ®Google Scholar
• Golubev , G.N. and Biswas , A.K. 1979 . Interregional Water Transfers, Problems and Prospects , Oxford and New York : Pergamon Press .
   Google Scholar
• Golubev , G.N. and Biswas , A.K. 1985 . “ Large-scale water transfers: emerging environmental and social issues ” . In Large-Scale Water Transfers: Emerging Environmental and Social Experiences , United Nations Environmental Programmes, Water Resources Series Edited by: Golubev , G.N. and Biswas , A.K. Vol. 7 , 103 – 118 . Oxford : Tycooly Publishing . In
   Google Scholar
• Gore , J.A. and Petts , G.E. , eds. 1989 . Alternatives in Regulated River Management , Boca Raton, Florida : CRC Press Inc. .
   Google Scholar
• Gourou , P. 1970 . L'Afrique , Paris : Hachette .
   Google Scholar
• Heritage , G. Receiving Rivers Geomorphology: Channel Stability Evaluation and Ameliorative Measures . Impact Management Workshop Background Information Document Prepared for Umgeni Water by Steffen, Robertson and Kirsten Consulting Engineers . October 1995 , Johannesburg, South Africa. Mooi-Umgeni Transfer Scheme Receiving Rivers Impact Management Study , In
   Google Scholar
• Heyns , P. , Masundire , H. and Sekwale , M. 1994 . “ Freshwater resources ” . In State of Southern African Research and Documentation Centre, International Union for the Conservation of Nature and Southern African Development Community , Edited by: Chenje , M. and Johnson , P. Johannesburg : Penrose Press . In
   Google Scholar
• Hughes , J.M. , Bunn , S.E. , Kingston , D.M. and Hurwood , D.A. 1995 . Genetic differentiation and dispersal among populations of Paratya australiensis (Atyidae) in rainforest streams in southeast Queensland, Australia . J. N. Am. Benth. Soc. , 14 : 158 – 173 .
   Google Scholar
• Hughes , J.M. , Bunn , S.E. , Hurwood , D.A. , Choy , S. and Pearson , R.G. 1996 . Genetic differentiation among populations of Caridina zebra (Decapoda, Atyidae) in tropical rainforest streams, northern Australia . Freshwat. Biol. , 36 : 289 – 296 .
   Web of Science ®Google Scholar
• Jacobson , P.J. , Jacobson , K.M. and Seely , M.K. 1995 . Ephemeral Rivers and their catchments: Sustaining People and Development in Western Namibia , Windhoek : Desert Research Foundation of Namibia .
   Google Scholar
• Kapuscinski , A.R. and Hallerman , E.M. 1991 . Implications of introduction of transgenic fish into natural ecosystems . Can. J. Fish. Aquat. Sci. , 48 ( suppl. 1 ) : 99 – 107 .
   Google Scholar
• King , J.M. , Day , J.A. , Davies , B.R. and Henshall-Howard , M.-P. 1987 . Particulate organic matter in a mountain stream in the south-western Cape, South Africa . Hydrobiol. , 154 : 165 – 187 .
   Web of Science ®Google Scholar
• King , J.M. , Henshall-Howard , M.P. , Day , J.A. and Davies , B.R. 1987 . Leaf-pack dynamics in a Southern African mountain stream . Freshwat. Biol. , 18 : 325 – 340 .
   Web of Science ®Google Scholar
• King , J.M. , Day , J.A. , Hurley , P.R. , Henshall-Howard , M.-P. and Davies , B.R. 1988 . Macroinvertebrate communities and environment in a Southern African mountain stream . Can. J. Fish. Aquat. Sci. , 45 : 2168 – 2181 .
   Web of Science ®Google Scholar
• Leach , J.H. and Lewis , C.A. 1991 . Fish introductions in Canada: provincial views and regulations . Can. J. Fish. Aquat. Sci. , 48 ( Suppl. 1 ) : 156 – 161 .
   Google Scholar
• 1993/4 . Lesotho Highlands Development Authority Annual Report , Maseru : Lesotho Highlands Development Authority .
   Google Scholar
• Lesotho Highlands Water Project 1992 WATERTEK obtains contract for water study , Vol. 6 , 1 – 1 . South Africa : WATERTEK Newsletter, CSIR .
   Google Scholar
• Lillehammer , A. and Saltviet , S.J. , eds. 1984 . Regulated Rivers , Oslo : Universitesforlaget AS .
   Google Scholar
• Martin , L. 1993 . Sharing international waters to sustain life . Namibian Review , 1993 : 1 – 8 .
   Google Scholar
• McMahon , T.A. and Mein , R.G. 1986 . River and Reservoir Yield , Colorado : Water Resources Publications .
   Google Scholar
• Meador , M. 1992 . Inter-basin water transfers. Ecological concerns . Fisheries (Bethesda) , 17 : 17 – 22 .
   Web of Science ®Google Scholar
• Micklin , P.P. 1986 . The status of the Soviet Union's North-South Water Transfer Projects Before their Abandonment in 1985–86 . Soviet Geogr. — Rev. and Transln , 27 ( 5 ) : 287 – 329 .
   Web of Science ®Google Scholar
• Overman , M. 1976 . Water: Solutions to a Problem of Supply and Demand Revised ed , Oxford Univ. Press .
   Google Scholar
• Palmer Development Group . 1995 . Review of rural sanitation in South Africa: the Mvula Trust , South African Water Research Commission Report No. KV 71/95
   Google Scholar
• Petitjean , M.O.G. and Davies , B.R. 1988 a . Ecological and Environmental Impacts of Inter-basin Water Transfer Schemes in Southern Africa — A Review , Pretoria : Foundation for Research and Development, CSIR .
   Google Scholar
• Petitjean , M.G.O. and Davies , B.R. 1988 . Ecological impacts of inter-basin water transfers: Some case studies, research requirements and assessment procedure in Southern Africa . S. Afr. J. of Sci. , 84 : 819 – 828 .
   Web of Science ®Google Scholar
• Petts , G.E. 1984 . Impounded Rivers , John Wiley and Sons .
   Google Scholar
• Petts , G.E. , Armitage , P. and Gustard , A. , eds. 1989 . Fourth International Symposium on Regulated Streams, Reg. Riv.: Res. and Mngmnt Vol. 3 , 392 – 392 .
   Google Scholar
• Pitchford , R. 1953 . Some Observations on Aquatic Snails in Relation to Centrifugal and Hydraulic Van Pumps . Publ. Hlth (Johannesburg) , 17 : 325 – 327 .
   Google Scholar
• Pitman , W.V. and Hudson , J. 1994 . “ A broad overview of present and potential water resource linkages in southern Africa ” . In Report prepared by Stewart Scott Inc. Johannesburg, for the Development Bank of Southern Africa
   Google Scholar
• Preston , G.R. , Robins , N. and Fuggle , R.F. 1992 . “ Integrated Environmental Management ” . In Environmental Management in South Africa , Edited by: Fuggle , R.F. and Rabie , M.A. Cape Town : Juta and Co. Ltd . Chapter 30 In
   Google Scholar
• Pretorius , S.J. , Oberholzer , G. and Van Eeden , J.A. 1976 . Die Tugela-Vaal Staatswaterskema as 'n Bilharzia risiko . S. Afr. Med. J. , 50 : 968 – 982 .
   PubMed Web of Science ®Google Scholar
• Roberts , C.P.R. and Erasmus , J.J. 1982 . Environmental Considerations of the Drakensberg Pumped Storage Scheme . Civ. Engnr S. Afr. , 24 ( 8 ) : 361 – 373 .
   Google Scholar
• Senqu River Instream Flow Requirements Workshop . 1995 . Senqu River Instream Flow Requirements Workshop Final Report.
   Google Scholar
• Simons , D.B. 1979 . “ Effects of stream regulation on channel morphology ” . In The Ecology of Regulated Streams , Edited by: Ward , J.V. and Stanford , J.A. New York : Plenum Press . In
   Google Scholar
• Snaddon , C.D. and Davies , B.R. 1998 . A preliminary assessment of the effects of a small inter-basin water transfer, the Riviersonderend-Berg River Transfer Scheme, Western Cape, South Africa, on discharge and invertebrate community structure . Submitted to Reg. Riv.: Res. and Mngmnt , 14 : 421 – 441 .
   Google Scholar
• Stanley Consultants . 1995 . SARP — Southern Africa Regional Water Sector Assessment , Final Report to United States Agency for International Development Vol. 1 ,
   Google Scholar
• Thomas , D.S.G. 1989 . “ The nature of arid environments ” . In Arid Zone Geomorphology , Edited by: Thomas , D.S.G. New York : John Wiley and Sons, Inc. . In
   Google Scholar
• Thomas , G.W. and Box , T.W. 1969 . “ Social and ecological implications of water importation into arid lands ” . In Arid Lands in Perspective , Edited by: Bagley , J.M. and Smiley , T.L. Tucson : University of Arizona Press . In
   Google Scholar
• van Niekerk , P.H. , van Rooyen , J.A. , Stoffberg , F.A. and Basson , M.S. Water for South Africa into the 21st Century . Paper presented at the IAHR Bi-Ennial Congress . August 5–7 , Sun City, South Africa.
   Google Scholar
• Voropaev , G.V. and Velikanov , A.L. 1985 . “ Partial southward diversions of northern and Siberian rivers ” . In Large-scale Water Transfers: Emerging Environmental and Social Experiences, United Nations Environmental Programmes, Water Resources Series Vol. 7 , Edited by: Golubev , G.N. and Biswas , A.K. 103 – 118 . Oxford : Tycooly Publishing . In
   Google Scholar
• Ward , J.V. and Stanford , J.A. , eds. 1979 . The Ecology of Regulated Streams , New York and London : Plenum Press .
   Google Scholar
• Ward , J.V. and Stanford , J.A. 1983 a . “ The Serial Discontinuity Concept of lotic ecosystems ” . In Dynamics of lotic ecosystems , Edited by: Fontaine , T.D. and Bartell , S.M. Michigan : Ann Arbor Science Publishers . In
   Google Scholar
• Ward , J.V. and Stanford , J.A. 1983 b . “ The intermediate disturbance hypothesis: An explanation for biotic diversity patterns in lotic ecosystems ” . In Dynamics of Lotic Ecosystems , Edited by: Fontaine , T.D. and Bartell , S.M. 347 – 356 . Michigan : Ann Arbor Science Publishers . In
   Google Scholar
• Wingate , P.J. 1991 . U.S. State's view on regulations on fish introductions . Can. J. Fish. Aquat. Sci. , 48 ( Suppl. 1 ) : 167 – 170 .
   Google Scholar