Publications
In chronological order
Books
ALLANSON B R, HART R C, O'KEEFFE J H and ROBARTS R D (1990). "Inland Waters of Southern Africa: An ecological perspective". Monographiae Biologicae, 64: 458 pages.
O'KEEFFE J H & DAY J A (Editors)(1993). Water quality monitoring in southern Africa. A field guide. Published by Share-Net, Howick. 65 pages.
Full-length papers in specialised technical journals and books
O'KEEFFE J H (1985). Population biology of the freshwater snail Bulinus globosus on the Kenya coast. 1. Population fluctuations in relation to climate. Journal of Applied Ecology, 22: 73-84.
O'KEEFFE J H (1985). Population biology of the freshwater snail Bulinus globosus on the Kenya coast. 2. Feeding and density effects on population parameters. Journal of Applied Ecology, 22: 85-90.
O'KEEFFE J H, DANILEWITZ D B and BRADSHAW J A (1987). An expert system approach to the assessment of the conservation status of rivers. Biological Conservation, 40: 69-84.
O'KEEFFE J H and DE MOOR F C (1988). Changes in the physico-chemistry and benthic invertebrates of the Great Fish River, following an interbasin transfer of water. Regulated Rivers: Research and Management, 2: 39-55.
DANILEWITZ D B, O'KEEFFE J H, and BRADSHAW J A (1988). An expert interface to an ecological model. South African Journal of Science, 84: 189-194.
BRADSHAW J, O'KEEFFE J H, DEAN N, DE MOORE I, PURCHASE H, DANILEWITZ D, RIORDAN D and BRUTON M (1989). Three ecological applications in PRO. Chapter 8 in "Expert System Applications", edited by S Vadera. Published by Sigma Press.
O'KEEFFE J H (1989). The conservation of rivers in southern Africa. Biological Conservation, 49: 255-274.
DAVIES B R, PALMER R W, O'KEEFFE J H and BYREN B A (1989). The effects of impoundment on the flow and water quality of two contrasting southern African river systems. In "Proceedings of the fourth South African National Hydrological Symposium", edited by S Kienzle and H Maaren. Published by the University of Pretoria. Pages 260 - 268.
O'KEEFFE J H, DAVIES B R, KING J M and SKELTON P H (1989). The conservation status of southern African rivers. Chapter 17 in "Biotic diversity in Southern Africa". Pages 266-289. Publisher: Oxford University Press
PALMER R W and O'KEEFFE J H (1989). Temperature effects of impoundments on the downstream reaches of a river in south eastern Africa. Archiv fur Hydrobiologie, 116: 471-485.
O'KEEFFE J H, DANILEWITZ D B and BRADSHAW J A (1990). The River Conservation System - an automated 'Knowledge Assistant' to help in the assessment of the conservation status of South African rivers. Pages 935-946 in "Freshwater, Wetlands and Wildlife" edited by R R Sharitz and J W Gibbons. USDOE Symposium Series No 61. Oak Ridge, Tennessee.
PALMER R W and O'KEEFFE J H (1990). Downstream effects of impoundments on the water chemistry of the Buffalo River. Hydrobiologia, 202 : 71-83
O'KEEFFE J H, BYREN B A, DAVIES B R and PALMER R W (1990). The effects of impoundment on the physico-chemistry of two contrasting southern African river systems. Regulated Rivers: Research and Management, 5: 97-110.
O'KEEFFE J H (1990). Types of rivers and their characteristics. Chapter 5 in "Inland Waters of Southern Africa: An ecological perspective", B R Allanson, R C Hart, J H O'Keeffe and R D Robarts. Monographiae Biologicae, 64: 65-81.
O'KEEFFE J H (1990). Unique Rivers. Chapter 6 in "Inland Waters of Southern Africa: An ecological perspective", B R Allanson, R C Hart, J H O'Keeffe and R D Robarts. Monographiae Biologicae, 64: 83-96.
O'KEEFFE J H (1990). A review of river research in southern Africa since 1900. Chapter 7 in "Inland Waters of Southern Africa: An ecological perspective", B R Allanson, R C Hart, J H O'Keeffe and R D Robarts. Monographiae Biologicae, 64: 97-129.
ALLANSON B R and O'KEEFFE J H (1990). Riverine Wetlands. Chapter 8 in "Inland Waters of Southern Africa: An ecological perspective", B R Allanson, R C Hart, J H O'Keeffe and R D Robarts. Monographiae Biologicae, 64: 131-149.
O'KEEFFE J H (1990). The influence of man. Chapter 9 in "Inland Waters of Southern Africa: An ecological perspective", B R Allanson, R C Hart, J H O'Keeffe and R D Robarts. Monographiae Biologicae, 64: 151-164.
PALMER R W and O'KEEFFE J H (1990). Transported material in a small river with multiple impoundments. Freshwater Biology, 24: 563-575
PALMER R W and O'KEEFFE J H (1990). Downstream effects of a small impoundment on a turbid river. Archiv fur Hydrobiologie, 119 : 457-473
PALMER C G, O'KEEFFE J H and PALMER A R (1991). Are macroinvertebrate assemblages in the Buffalo River, Southern Africa, associated with particular biotopes? Journal of the North American Benthological Society, 10: 349-357
O'KEEFFE J H and DAVIES B R (1991). The conservation and management of the rivers of the Kruger National Park. Aquatic Conservation, Marine and Freshwater Systems, 1, 55-71
PALMER C G and O'KEEFFE J H (1992). Feeding patterns of four macroinvertebrate taxa in the headwaters of the Buffalo River, eastern Cape. Hydrobiologia, 228: 157-173
O'KEEFFE J H, BRUTON M N and UYS M. (1992). Freshwater systems. Chapter 13 in "Environmental Management in South Africa" Edited by R F Fuggle and M A Rabie. Published by Juta, Cape Town. Pages 277-315.
ARTHINGTON A H, BUNN S E, PUSEY B J, BLUHDORN D R, KING J M, THARME R E, and O'KEEFFE J H (1992) Development of an holistic approach for assessing environmental flow requirements of riverine ecosystems. In "Proceedings of an international workshop and seminar on water allocation for the environment" edited by J J Pigram and B P Hooper. Published by the Centre for Water Policy Research, University of New England, Armidale, Australia. 282 pages.
PALMER C G, O'KEEFFE J H, PALMER A R, DUNNE T & RADLOFF S (1993). Macroinvertebrate functional feeding groups in the middle and lower reaches of the Buffalo River, eastern Cape. 1. Dietary variability. Freshwater Biology, 29: 441-453.
PALMER C G, O'KEEFFE J H & PALMER A R (1993). Macroinvertebrate functional feeding groups in the middle and lower reaches of the Buffalo River, eastern Cape. 2. Functional morphology and behaviour. Freshwater Biology, 29: 455-462
HILL M P and O'KEEFFE J H (1993). Some aspects of the ecology of the river crab (Potamonautes perlatus, Milne Edwards) in the upper reaches of the Buffalo River, Eastern Cape Province, South Africa. Southern African Journal of Aquatic Scientists, 18: 42-50.
DAVIES B R, THOMS M C, WALKER K F, O'KEEFFE J H & GORE J A (1994). Dryland rivers: Their ecology, conservation and management. Chapter 25 in "The Rivers Handbook", Volume 2. Pages 484 to 511. Edited by P Calow and G E Petts. Published by Blackwell Scientific Publications, Oxford.
KING J M, O'KEEFFE J H, ARTHINGTON A H, BUNN S E, JOUBERT A R, AND THARME R E (in press). How much water makes a river? The developing science of instream flow assessments. South African Journal of Science.
PALMER C G, PALMER A R, O'KEEFFE J H AND PALMER R W (1994). Macroinvertebrate community structure and altitudinal changes in the upper reaches of a warm temperate southern African river. Freshwater Biology, 32: 337-347.
PALMER R W AND O'KEEFFE J H (1995) Distribution and abundance of blackflies (Diptera: Simuliidae) in relation to impoundments in the Buffalo River, eastern Cape, South Africa. Freshwater Biology, 33: 109-118.
BREEN C M, BIGGS H, DENT M C, GORGENS A, O'KEEFFE J H & ROGERS K H (1995) Designing a research programme to promote river basin management. Water Science Technology, 32: 103-109.
O'KEEFFE J H (1995). Managing rivers and their water resources as sustainable ecosystems: The South African experience. Chapter 38 in "The ecological basis for river management", pages 491-503, edited by D. Harper and A. Ferguson. Published by John Wiley and Sons, Chichester.
DAVIES B R, O'KEEFFE J H & SNADDON C D (1995) River and Stream ecosystems in Southern Africa. Predictably unpredictable. Chapter 18 in "River and Stream Ecosystems" edited by CE Cushing, K W Cummins and G W Minshall. Published by Elsevier Press, New York.
PALMER C G, MAART B, PALMER A R, AND O'KEEFFE J H (1996) An assessment of macroinvertebrate functional feeding groups as water quality indicators in the Buffalo River, eastern Cape Province, South Africa. Hydrobiologia, 318: 153-164
HUGHES D A, O'KEEFFE J H, SMAKHTIN V, AND KING J (1997) Development of an operating rule model to simulate time series of reservoir releases for instream flow requirements. Water SA, 23: 21-30
O'KEEFFE J H (1997) Methods of assessing conservation status for natural fresh waters in the southern hemisphere . Chapter 30 in "Freshwater quality: defining the indefinable". Edited by P J Boon and D L Howell. Published by The Stationery Office, Edinburgh
UYS M C AND O'KEEFFE J H (1997)Midsummer in a temporary stream: faunal variability over a three year period. South African Journal of Aquatic Science, 23:55-79
UYS M C AND O'KEEFFE J H (1997) Simple words and fuzzy zones: early directions for temporary river research in South Africa. Environmental Management, 21:517-531.
O'KEEFFE J H AND UYS M C (1998) Invertebrate responses to natural and modified perennial and temporary flow regimes. Section 2, chapter 13, in "Wetlands for the future", contributions from the INTECOL V International Wetland Conference, Perth, Australia, September 1996. Pages 173-192.
ROWNTREE K M, WADESON R A AND O'KEEFFE J H (2000) Geomorphological zonation for ecological river typing. South African Geographical Journal, 82:163-172.
O'KEEFFE J H AND UYS M C (2000) The role of classification in the conservation of rivers. Chapter 20, pages 455 - 458 of AGlobal Perspectives on River conservation: Science, Policy and Practice@ edited by P Boon, B Davies and G Petts. Published by John Wiley and Sons, London.
O'KEEFFE J H, HUGHES D A AND THARME R E (2002) Linking ecological responses to altered flows, for use in environmental flow assessments: The Flow Stressor-Response method. Proceedings of the International Association of Theoretical and Applied Limnology, 28:84-92.
O'KEEFFE J H AND SCHOFIELD N (2003) Global drivers and the status of the world's aquatic ecosystems. Proceedings of the 2nd National Conference on Aquatic Environments, Townsville, Australia.
O'KEEFFE J H and ROGERS K H (2003) River heterogeneity and management outside the Park. Chapter 21 in "The Kruger Experience: Ecology and Management of Savannah Heterogeneity" edited by J T du Toit, H C Biggs and K H Rogers. Pages 447-468. Published by Island Press, Washington. ISBN 1-55963-981-4.
ROGERS K H and O'KEEFFE J H (2003) River heterogeneity: Ecosystem structure, function and management. Chapter 9 in "The Kruger Experience: Ecology and Management of Savannah Heterogeneity" edited by J T du Toit, H C Biggs and K H Rogers. Pages 189-218. Published by Island Press, Washington. ISBN 1-55963-981-4.
National Reports
WARD J V, BREEN C M, CAMBRAY J A, CHUTTER F M, DAVIES B R, DAY J A, DE MOOR F C, HEEG J, O'KEEFFE J H and WALKER K F (1985). Stream Regulation. Chapter 5 in 'Limnological Criteria for the Management of Water Quality in the Inland Waters of the southern Hemisphere'. Eds B R Allanson and R C Hart. South African National Programmes Scientific Report No 93. CSIR Pretoria.
O'KEEFFE J H (1986). Ecological research on South African rivers - a preliminary synthesis. South African National Scientific Programmes Report. No 121. (121 pages.) CSIR, Pretoria.
O'KEEFFE J H and O'KEEFFE C (1986). An annotated bibliography of ecological research on South African rivers. Ecosystem Programmes Occasional Report No 10. (184 pages.) CSIR, Pretoria.
O'KEEFFE J H (1986). (Editor). The Conservation of South African rivers. South African National Scientific Programmes Report. No 131. (179 pages). CSIR, Pretoria.
O'KEEFFE J H (1986). Aims, criteria and goals for river conservation. Chapter 2 in "The Conservation of South African Rivers". Edited by J H O'Keeffe. South African National Scientific Programmes Report No 131. CSIR, Pretoria.
O'KEEFFE J H, DANILEWITZ D B and BRADSHAW J A (1986). The River Conservation System. A User's Manual. Ecosystem Programmes Occasional Report Series No 9. (80 pages). CSIR.
FERRAR A A, O'KEEFFE J H and DAVIES B R (1988). The River Research Programme. South African National Scientific Programmes Report No 146. (28 pages) CSIR, Pretoria.
O'KEEFFE J H, KING J M, DAY J A, ROSSOUW H B H, VAN DER ZEL D W and SKOROSZEWSKI R (1989). General concepts and approaches to instream flow and assessment. Chapter 4 in "Ecological flow requirements for South African rivers", edited by A A Ferrar, South African National Programmes Report No 162. Foundation for Research and Development, Pretoria.
KING J M and O'KEEFFE J H (1989). Concluding synthesis. Chapter 9 in "Ecological flow requirements for South African rivers" edited by A A Ferrar. South African National Scientific Programmes Report No 162. Foundation for Research and Development, Pretoria.
O'KEEFFE J H (1991). Water requirements of the Luvuvhu River. Chapter 4 (Pages 38-63) in: Flow requirements of Kruger National Park Rivers. Ed. C.A. Bruwer. Technical Report TR 149, Department of Water Affairs and Forestry, Pretoria.
O'KEEFFE J H (1991). Ecological Processes in and conservation status of South African rivers. Pages 70-74 in "Fishways in South Africa". Proceedings of the workshop on the rationale and procedures for the evaluation of the necessity for fishways in South African rivers. Published by Cave, Klapwijk & Associates, Pretoria.
DAVIES B R, O'KEEFFE J H AND SNADDON C D (1993). A Synthesis of the Ecological Functioning, Conservation and Management of South African River Ecosystems. Water Research Commission Report No. TT 62/93. 232 Pages.
O'KEEFFE J H (1993). Invertebrate communities of the rivers of the Amatole Region. Chapter 4.1 in "Amatole Water Resources System Analysis - Vol. 6 - Environmental water Requirements of the rivers of the Amatole Region". Report to the Directorate of Project Planning, Department of Water Affairs and Forestry, Pretoria. 21 Pages.
O'KEEFFE J H, KING J M AND EEKHOUT S (1994). The characteristics and purposes of river classification. Chapter 1 in "River classification and ecosystem health assessment" edited by A C Uys. Pages 9-18.
KING J M, O'KEEFFE J H, POLLARD S, THARME R E, AND WEEKS D (1996) Assessment of environmental water requirements for selected South African rivers: Problems and possible approaches. Water Research Commission Report No KV 72/95. 58 Pages.
ROWNTREE K M, KING J M, McGREGOR G, NEWSON M D, O'KEEFFE J H, ROWLSTON W S, AND WADESON R (1996) The hydraulics of physical biotopes - Terminology, inventory and calibration. Water Research Commission report. 52 Pages.
WEEKS D C, O'KEEFFE J H, FOURIE A, AND DAVIES B R (1996) A pre-impoundment study of the Sabie-Sand River system, eastern Transvaal, with special reference to predicted impacts on the Kruger National Park. Volume 1: The ecological status of the Sabie-Sand River system. Water Research Commission Report WRC 294/1/96. 308 Pages.
POLLARD S, WEEKS D C, FOURIE A, DAVIES B R, DEACON A, O'KEEFFE J H, AND GERTENBACH W (1996) A pre-impoundment study of the Sabie-Sand River system, eastern Transvaal, with special reference to predicted impacts on the Kruger National Park. Volume 2: The effects of the 1992 drought on the fish and invertebrates of the Lower Sabie and Sand Rivers. Water Research Commission Report. 126 Pages
O'KEEFFE J H, WEEKS D C, FOURIE A, AND DAVIES B R (1996) A pre-impoundment study of the Sabie-Sand River system, eastern Transvaal, with special reference to predicted impacts on the Kruger National Park. Volume 3: The effects of proposed impoundments and management recommendations. Water Research Commission Report WRC 294/3/96. 111 Pages
UYS A C, GOETSCH P-A AND O'KEEFFE J H (1996) National Biomonitoring Programme for Riverine Ecosystems: Ecological indicators, a review and recommendations. NPB Report Series No. 4 to the Institute for Water Quality Studies, Department of Water Affairs and Forestry. 93 Pages
O'KEEFFE J H AND COETZEE Y (1996) Status report on the Kruger National Park Rivers Research Programme: A synthesis of results and assessment of progress. Water Research Commission Report No 711/1/96. 63 Pages
PALMER C G, GOETSCH P-A AND O'KEEFFE J H (1996). Development of an artificial stream system to investigate the use of macroinvertebrates as water quality indicators. Water Research Commission Report No 475/1/96. 185 Pages.
O'KEEFFE J H, VAN GINKEL C E, HUGHES D A, HILL T R AND ASHTON P J (1997) A situation analysis of water quality in the catchment of the Buffalo River, Eastern Cape, with special emphasis on the impacts of low-cost, high-density urban development on water quality. Volume 1. Water Research Commission Report No 405/1/96. 315 pages.
VAN GINKEL C E, O'KEEFFE J H, HUGHES D A AND HERALD J R AND ASHTON P J (1997) A situation analysis of water quality in the catchment of the Buffalo River, Eastern Cape, with special emphasis on the impacts of low-cost, high-density urban development on water quality. Volume 2. Water Research Commission Report No 405/2/96. 259 pages.
FILMALTER E AND O'KEEFFE J H (1997) Effects of land-use changes on the rivers and lakes of the Wilderness and Swartvlei catchments. Report to the Department of Environment Affairs. 96 Pages
JEWITT G P W, HERITAGE G L, WEEKS D C, MACKENZIE J A, VAN NIEKERK A, GÖRGENS A H M, O'KEEFFE J H, ROGERS K AND HORN M (1998) Modelling abiotic-biotic links in the Sabie River. Water Research Commission Report No. 777/1/98. 157 pages.
BREEN C M, DENT M, O'KEEFFE J H, QUINN N AND ROGERS K (1998) Meeting the water quantity and quality needs of the natural environment of rivers: The contibution of the KNPRRP. Water Research Commission Report No. TT106/98. 20 Pages.
O'KEEFFE J H (1999) Deciding which reserve procedure to use (Planning, Preliminary or comprehensive): Reserve methodology Step 0. Part 4, pages 1 to 3 in AResource-directed measures for the protection of water resources@, edited by Dr H MacKay. DWAF Institute for Water Quality Studies. Report No. N/0000/00/_/REH0299
O'KEEFFE J H (1999) The procedure for generating aquatic invertebrate information for the intermediate and comprehensive ecological reserve (quantity) for rivers. Appendix R21 in Volume 3 of AResource Directed Measures for Protection of Water Resources: River Ecosystems Components@. Department of Water affairs and Forestry, Pretoria. 12 Pages.
HUGGINS G AND O'KEEFFE J H (1999) Determination of the social importance of a water resource. Appendix R8 Volume 3 of AResource Directed Measures for Protection of Water Resources: River Ecosystems Components@. Department of Water affairs and Forestry, Pretoria. 9 Pages.
O'KEEFFE J H (1999) Adding socio-economic and cultural criteria to the assessment of river importance for the Reserve. Pages R8/5 to R8/9 in Volume 3 of AResource Directed Measures for Protection of Water Resources: River Ecosystems Components@. Department of Water affairs and Forestry, Pretoria. 5 Pages.
O'KEEFFE J H (2000) Possible definitions for different levels of flow-related stress for instream riverine fauna. Document 2 (pages 113-118) in AFeasibility of using a risk-based approach to set integrated environmental objectives for the protection of water resources@, by S Jooste, H M MacKay, P-A Scherman and W J Muller. Water Research Commission Report No. 914/1/00. 144 Pages.
LOUW D, THARME R, HUGHES D A, O'KEEFFE J H AND BIRKHEAD A (2000) Risk-based objectives flow workshop: starter document. Appendix 1 (pages 119-124) in AFeasibility of using a risk-based approach to set integrated environmental objectives for the protection of water resources@, by S Jooste, H M MacKay, P-A Scherman and W J Muller. Water Research Commission Report No. 914/1/00. 144 Pages.
BREEN C, DENT M, JAGANYI J, MADIKIZELA B, MAGANBEHARIE J, NDLOVU A, O'KEEFFE J, ROGERS K, UYS M, AND VENTER F (2000) The Kruger National Park Rivers Research Programme. Final Report. Water Research Commission Report No. TT 103/00. 210 Pages.
O'KEEFFE J H (2000) Environmental flow assessments: Background and assumptions. Chapter 2 in AThe Building Block Methodology Manual@ Edited by J M King, R E Tharme, and M S de Villiers. Report No. TT 131/00 of the Water Research Commission, Pretoria. 9 Pages.
O'KEEFFE J H (2000). Environmental flow assessments within the South African integrated planning process for water resources. Chapter 4 in AThe Building Block Methodology Manual@ Edited by J M King, R E Tharme, and M S de Villiers. Report No. TT 131/00 of the Water Research Commission, Pretoria. 7 Pages.
O'KEEFFE J H AND LOUW D (2000). Ecological Management Classes. Chapter 11 in AThe Building Block Methodology Manual@ Edited by J M King, R E Tharme, and M S de Villiers. Report No. TT 131/00 of the Water Research Commission, Pretoria. 8 Pages.
O'KEEFFE J H AND DICKENS C (2000) Aquatic invertebrates. Chapter 17 in AThe Building Block Methodology Manual@ Edited by J M King, R E Tharme, and M S de Villiers. Report No. TT 131/00 of the Water Research Commission, Pretoria. 14 Pages.
MADIKIZELA B R, DYE A H AND O'KEEFFE J H (2001) Water and faunal studies in the Umzimvubu catchment, Eastern Cape, with particular emphasis on species as indicators of environmental change. Report No. 716/1/01 of the Water Research Commission, Pretoria.117 Pages.
O'KEEFFE J H AND NEWENHAM J (2003) Summary of the proceedings of the IFR Monitoring Protocol Workshop. Report No. 1101/1/03 of the Water Research Commission, Pretoria. Pages 177-194.
FORSTER L, O'KEEFFE J H, MITCHELL S, BELCHER A, OELOFSE S AND HILL L (2003) Resource Directed Measures: Introductory Module. Module 1. Training Manual for the Department of Water Affairs and Forestry. 192 Pages.
O'KEEFFE J H AND NEWENHAM J (2003) Summary of the proceedings of the IFR Monitoring Protocol Workshop. In Report No. 1101/1/03 to the Water Research Commission, Pretoria. Pages 177 to 194.
LOUW D, KLEYNHANS N, THIRION C, HUGHES D & O'KEEFFE J (2004) Ecoclassification and habitat flow stressor response manual. Report to DWAF, Pretoria, 155 pages.
O'KEEFFE J H AND HUGHES D A (IN PRESS) Flow stressor-Response approach to environmental flow requirement assessment. Chapter 5 in "A computer-based Decision Support System for quantifying the components of the ecological Reserve". Report to the Water Research Commission, Pretoria.
Other Published Articles
O'KEEFFE J H (1984). An ecological survey of South African rivers. Limnological Society of southern Africa/Inland Water Ecosystems Newsletter, 35: 15-16.
O'KEEFFE J H (1985). The blackfly problem in the Great Fish River. The Naturalist, 29: 3-8.
O'KEEFFE J H (1985). River conservation in South Africa. The Naturalist, 29: 9-13.
O'KEEFFE J H (1986). Ecological effects of impoundments on the downstream reaches of rivers in the eastern Cape Province, South Africa. International Newsletter on Regulated Stream Limnology, 7: 9-12.
KING J M and O'KEEFFE J H (1986). Jerk of the Congress Award. SA Water Bulletin, 12: 24-25.
HART R C and O'KEEFFE J H (1987). SA's "Liquid gold" under the Microscope. Eastern Province Herald, February 20th.
HART R C and O'KEEFFE J H (1987). Helping to conserve water. Daily Dispatch, February 20th.
O'KEEFFE J H (1987). River conservation by expert system. Expert System Newsletter No 1: 4.
O'KEEFFE J H (1987). Those fountains of life. Conserva, 2: 12-15.
O'KEEFFE J H (1988). Editor and Compiler. The Conservation Status of South African Rivers. 1:2 500 000 Map, printed by Surveys and Mapping, Cape Town.
O'KEEFFE J H (1988). Environmental Planning and Management of river systems (with particular reference to the Buffalo River). The Naturalist, 32 (29): 3-13.
O'KEEFFE J H (1988). Ecology and Productivity of an African wetland system - A review. South African Journal of Zoology. 23: 374-375.
O'KEEFFE J H (1989). The Buffalo River: an environmental case study (abstract only). Water, Sewage and Effluent, 9: 38.
O'KEEFFE J H (1990). How much water should we leave in rivers? The Naturalist, 34: 15-20.
O'KEEFFE J H (1990) Rivers and Water Resources. A 2 page supplement in the Cape Argus newspaper.
PALMER R W and O'KEEFFE J H (1992). River regulation and Simulium chutteri, Lewis 1965. Bulletin of the British Simuliid Group, 1: 10-11.
O'KEEFFE J H (2003) The future water supply of South Africa. Article in the July issue of "The World and I" Magazine, published by the Washington Times Corporation, Washington DC. Pages 151-153.
O'KEEFFE J H (2004) Book review of : Conservation, Ecology and Management of African Freshwaters. By Thomas L Crisman, Lauren J Chapman, Colin A Chapman, and Les S Kaufman. University Press of Florida. Environmental Conservation 31: 1-2.
O'KEEFFE J H (in press) Book Review of : Measuring Biological Diversity. By Anne E Magurran. Blackwell Publishing, Oxford. African Journal of Aquatic Science.
Conference Papers
O'KEEFFE J H (1985). An 'expert system' for the assessment of the conservation status of South African rivers. Paper presented to the Workshop on River Conservation, Midmar Dam, Natal, August 19-21.
O'KEEFFE J H (1985). A review of ecological research on South African rivers. (Or why rivers are different from dams.) Paper presented at the Congress of the Limnological Society of southern Africa. Cape Town, July 1-5.
PALMER R W and O'KEEFFE J H (1987). Reset distances in the Great Fish River. Paper presented at the conference on "Alternative life history styles of fishes and other organisms", JLB Smith Institute, June 20-25 1987.
O'KEEFFE J H (1987). Rivers, ideal systems for an ecological study. Keynote biology lecture. Twelfth National Convention of Teachers of Mathematics, Physical Science and Biology. Rhodes University, Grahamstown, July 13-17.
PALMER R W and O'KEEFFE J H (1987). River regulation and Simulium chutteri, Lewis 1965. Presentation to the 10th annual meeting of the British Simuliid group, Wareham, Dorset, 29 December.
O'KEEFFE J H (1988). Environmental Planning and management of river systems. Paper presented at the second conference on Environmental Planning and Design, Institute of Town and Regional Planners, at Mpekweni, March 25.
O'KEEFFE J H (1988). Assessing the conservation status of South African rivers. Congress of the Limnological Society of Southern Africa. Pietermaritzburg, June 27-29.
PALMER R W and O'KEEFFE J H (1988). Impoundment effects on water temperature in the Buffalo River. Congress of the Limnological Society of Southern Africa. Pietermaritzburg, June 27-29.
PALMER C G and O'KEEFFE J H (1988). Benthic invertebrate communities in the Buffalo River, Eastern Cape Province. Congress of the Limnological Society of Southern Africa. Pietermaritzburg, June 27-29.
O'KEEFFE J H (1988). Some aspects of river conservation in southern Africa. Paper presented at the Fourth International Symposium on Regulated Rivers. Loughborough, United Kingdom, August 15-19.
PALMER R W and O'KEEFFE J H (1988). Downstream effects of impoundments of the Buffalo River South Africa. Paper presented at the Fourth International Symposium on Regulated Rivers. Loughborough, United Kingdom, August 15-19.
O'KEEFFE J H, BYREN B A, DAVIES B R and PALMER R W (1988). The effects of impoundments on the physico-chemistry of two southern African river systems. Paper presented at the Fourth International Symposium on Regulated Rivers. Loughborough, United Kingdom, August 15-19.
O'KEEFFE J H (1989). The Buffalo River: An environmental case study. Proceedings of the first biennial conference of the Water Institute of Southern Africa. 15 Pages.
DAVIES B R, PALMER R W, O'KEEFFE J H and BYREN B A (1988). The effects of impoundment on the flow and water quality of two contrasting southern African river systems. Paper presented at the fourth South African national hydrological symposium, at the University of Pretoria.
O'KEEFFE J H, DAVIES B R, WELLS J J & WEEKS D C (1990). A pre-impoundment study of the Sabie-Sand River system. Paper presented at the 1990 Congress of the S.A.S.A.Q.S. Bloemfontein, July 2 - 4.
O'KEEFFE J H (1990). The Conservation Status of Freshwater Systems in Southern Africa. Paper presented to the South African Council for the Environment, Workshop to formulate a national policy and strategy for the fresh water systems of South Africa. Wilderness, April 2-4.
O'KEEFFE J H (1990). Ecological processes and conservation status in rivers. Paper presented at the Workshop on fish ways in South African rivers. Pretoria, March 23-24.
O'KEEFFE J H (1990). A pre-impoundment study of the Sabie-Sand River system. Paper presented at the 1990 Congress of the Southern African Society for Aquatic Sciences. Bloemfontein, July 2-4.
DAVIES B R, O'KEEFFE J H and WALMSLEY R D (1990). Attributes of semi-arid rivers in South Africa: spatial and temporal aspects of water management. Paper presented at the conference on Aquatic Ecosystems in Semi-Arid Regions. Saskatoon, Canada, August 27-30.
O'KEEFFE J H and DAVIES B R (1990). The conservation and management of Kruger National Park rivers. Paper presented at the conference on The Conservation and Management of Rivers. York, United Kingdom, September 10-13.
O'KEEFFE J H, and PALMER C G (1991). River Conservation: Engineering requirements and ecological realities. Paper presented at EPPIC '91 Environmental Conference: Water, Pretoria, May 16 & 17.
O'KEEFFE J H, WEEKS D C, DAVIES B R, and WELLS J J (1991). Assessing ecosystem requirements for the Sabie-Sand River system in the Kruger National Park. Paper presented at a symposium on stream flow regulation and ecological implications, Griffiths University, Brisbane, Australia, November 22.
ARTHINGTON A H, KING J M, O'KEEFFE J H, BUNN S E, DAY J A, PUSEY B J, BLUHDORN D R, and THARME R (1991). Development of an holistic approach for assessing environmental flow requirements of riverine ecosystems. Paper presented at a conference on Water allocation for the environment, University of New England, Armidale, Australia, November 27-29.
O'KEEFFE J H (1992). Ecological characteristics of Eastern Transvaal intermittent Streams. Presentation at the workshop on riverine ecosystems, Skukuza, February 7-8.
O'KEEFFE J H (1992). Patch dynamics in intermittent streams of the eastern Transvaal. Presentation at the workshop on riverine ecosystems, Skukuza, February 7-8.
O'KEEFFE J H, BACON P, BRIGGS S, GEHRKE P, THARME R, JACOBS T, and ROBERTS J (1992). A Preliminary assessment of water requirements to maintain or restore biological communities associated with red gum forests of the River Murray. Proceedings of a workshop on environmental water requirements held at the Murray-Darling Freshwater Research Centre, Albury, New South Wales, December 2-4, 1991.
O'KEEFFE J H and VAN GINKEL C E (1992). A situation analysis of water quality in the Buffalo River catchment. Presentation to the South African Institute of Civil Engineers, East London, March 3rd., and at a mini symposium of Buffalo River users, East London, March 4th.
HILL M P and O'KEEFFE J H (1992). Aspects of the ecology of the river crab (Potamonautes perlatus, Milne Edwards) in the upper reaches of the Buffalo River, eastern Cape Province, South Africa. Paper delivered at the Conference on Aquatic Ecosystems, Cape Town, 7-10 July.
FILMALTER E S, O'KEEFFE J H, HUGHES D A and ROWNTREE K M (1992). Hydrological features and preliminary land-use differences between Wilderness Lakes catchments. Paper delivered at the Conference on Aquatic Ecosystems, Cape Town, 7-10 July.
VAN GINKEL C E and O'KEEFFE J H (1992). Spatial and temporal trends in water quality throughout the Buffalo River system. Paper delivered at the Conference on Aquatic Ecosystems, Cape Town, 7-10 July.
O'KEEFFE J H (1993). Description and findings of the situation analysis on the Buffalo River. Paper presented at a public meeting on the Amatole Water Resources System Analysis. East London City Hall, July 6th.
O'KEEFFE J H (1993) Invertebrate communities of the rivers of the Amatole Region. Paper presented at the Amatole Workshop on Environmental Water Requirements, Kariega Park, October 6th and 7th.
O'KEEFFE J H, GOETSCH P A, WEEKS D C, AND FOURIE A (1993) a preliminary comparison of the aquatic fauna of the Sabie and Letaba Rivers. Paper presented at the Third Annual Workshop of the Kruger National Park Rivers Research Programme, Magaliesberg, September 26th to 28th.
O'KEEFFE J H, KING J M AND EEKHOUT S (1994) The characteristics and purposes of river classification. Keynote paper presented at the Joint Australian/South African Workshop on River Classification and Environmental Health Assessment, February 7th to 11th.
VAN VUUREN S J, LE GRANGE A DU P, AND O'KEEFFE J H (1994) A first estimate of the environmental water requirements of the Mgeni river system. Paper to be presented at a South African National Institute of Hydrologists Workshop.
O'KEEFFE J H, VAN GINKEL C E, HUGHES D A, HILL T R, AND ASHTON P A (1994) The Buffalo River: A situation analysis of water quality in the catchment. Proceedings of a workshop on "Practical application of water quality management". Held at Port Elizabeth Technikon, April 12 and 13. Pages 118 - 133.
O'KEEFFE J H, PALMER C G, AND HUGHES D A (1994) Water quality in the Great Letaba River, and methods of predicting the effects of flow modification. Chapter 3.11 in the Proceedings of the Workshop on Letaba River instream flow requirements, held at Aventura Resort, Die Eiland, June 6 to 10.
O'KEEFFE J H (1994) The aquatic invertebrates of the Great Letaba River and their habitat requirements. Chapter 3.9 in the Proceedings of the Workshop on Letaba River instream flow requirements, held at Aventura Resort, Die Eiland, June 6 to 10.
O'KEEFFE J H (1994) Water quality in the rivers of the Kruger National Park. Paper presented at the Modelling Workshop for the KNP Rivers Programme, held at the University of Pretoria, July 4 - 6.
O'KEEFFE J H, PALMER C G AND HUGHES D A (1994) Water quality in the Luvuvhu River, and methods of predicting the effects of flow modification. Chapter 12 in the Proceedings of the Workshop on Luvuvhu River instream flow requirements, held at Mountain View, Northern Transvaal, July 26 to 28.
PALMER C G AND O'KEEFFE J H (1994) The aquatic invertebrates of the Luvuvhu River and their habitat requirements. Chapter 11 in the Proceedings of the Workshop on Luvuvhu River instream flow requirements, held at Mountain View, Northern Transvaal, July 26 to 28. O'KEEFFE J H AND UYS M (1994) Aquatic invertebrates, their flow requirements and water quality. Paper presented to the Kei River Instream Flow Requirement Workshop, Hogsback, November 14-16.
O'KEEFFE J H (1994) Instream Flow Methodology approach. Paper presented to the Kei River Instream Flow Requirement Workshop, Hogsback, November 14-16.
O'KEEFFE J H (1994) Invertebrate species and their requirements. Paper presented at the Plettenberg Bay Instream Flow Requirement Workshop, Plettenberg Bay, November 22-25.
O'KEEFFE J H and DE MOOR F C (1994) Hydraulic habitat requirements of invertebrate communities, with special reference to the Kouga, Groot and Kruis Rivers, southern Cape. Paper presented at the Algoa Reconnaissance Flow Assessment Workshop, Tsitsikamma Lodge, December 8-10.
O'KEEFFE J H (1995) Overview of river research in southern Africa. Paper presented to a Joint Mocambique/South Africa rivers research workshop, Jakkalsbessie Camp, Kruger National Park, January 25-27.
O'KEEFFE J H (1995) "Where are we?". An overview of river research in southern Africa. Paper presented to an international workshop on "Hydraulic modelling of the effect of changing flows on physical biotopes", Citrusdal, February 4-7.
O'KEEFFE J H (1995) Present water quality situation in the Senqu River and the relevance of this for IFR. Paper presented to the Senqu River Instream Flow Requirement Workshop, Mabalingwe Lodge, Transvaal, April 19-21.
BREEN C M, BIGGS H, DENT M C, GÖRGENS A, O'KEEFFE J H AND ROGERS K H (1995) Designing a research programme to promote river basin management. Paper presented to the International Conference on River Basin Management for sustainable Development, Skukuza, May 22-26.
O'KEEFFE J H, UYS A C AND GOETSCH P-A (1996) Ecological indicators for the National Biomonitoring Programme. Presentation to the Department of Water Affairs and Forestry. CSIR, March 1.
O'KEEFFE J H (1996) The Instream Flow Requirement method for rivers. Presentation to the Consortium for Estuarine Research and Management, Port Elizabeth, May 6.
O'KEEFFE J H AND PALMER R W (1996) The status of freshwater invertebrates, with special reference to pest blackflies. Paper presented at the Gt Fish and Sundays Rivers Flow Management Workshop, Kariega Park, Kenton, July 1-4.
O'KEEFFE J H (1996) Review of Phases I and II, KNPRRP. Paper presented at the Strategic Planning Workshop for Phase III of the Kruger National Park Rivers Research Programme. Broederstroom, July 4.
UYS M C AND O'KEEFFE J H (1996) Trials of life in temporary streams in the eastern Cape. An assessment of the effects of flow variability. Paper presented at Victoria Falls International Conference on Aquatic Systems. Victoria Falls, Zimbabwe, July 15-19.
BIGGS H C, O'KEEFFE J H AND GORGENS (1996) Information systems management in overall programme function - a case study from the Rivers Research Programme. Paper presented at Victoria Falls International Conference on Aquatic Systems. Victoria Falls, Zimbabwe, July 15-19.
O'KEEFFE J H (1996) A brief mystery of time. SASAQS presidential address delivered at Victoria Falls International Conference on Aquatic Systems. Victoria Falls, Zimbabwe, July 15-19.
O'KEEFFE J H (1996) The benthic invertebrates of the Sabie-Sand River system. Paper presented to the Sabie-Sand Instream Flow Requirement Workshop, Aan de Vliet, Mpumalanga, August 18-22.
O'KEEFFE J H and WHITFIELD A K (1996) Estuarine freshwater requirements. Paper presented to the Tugela Estuarine Flow Requirement Workshop, Kariega Park, Eastern Province, September 2-4.
O'KEEFFE J H (1996) The potential benefits of biomonitoring as a monitoring and management tool. Presentation to the workshop for the regional implementation of the National Biomonitoring Programme for Rivers. CSIR Conference Centre, Pretoria, September 17.
O'KEEFFE J H (1996) Indicator selection. Presentationation to the workshop for the regional implementation of the National Biomonitoring Programme for Rivers. CSIR Conference Centre, Pretoria, September 17.
O'KEEFFE J H (1996) Environmental water quality requirements for the Bivane and Middle Pongolo Rivers. Paper presented to the Bivane Instream Flow Requirement Workshop, Itala/Vryheid, Kwazulu-Natal, November 25-29.
O'KEEFFE J H AND UYS M C (1997) Invertebrate responses to natural and modified perennial and temporary flow regimes. Paper presented at SASAQS 34th Symposium: Aquatic Ecosystems: Research and Industry - Working together to maintain biodiversity. Mtunzini, Kwazulu-Natal, 22-27 June.
O'KEEFFE J H (1997) Ecological theory and management practice. Presidential address presented at SASAQS 34th Symposium: Aquatic Ecosystems: Research and Industry - Working together to maintain biodiversity. Mtunzini, Kwazulu-Natal, 22-27 June.
O'KEEFFE J H (1997) Research and development. Presentation to the NAEBP workshop "Towards standardised implementation", Albert Falls Dam, Natal, 24-26 August.
O'KEEFFE J H (1997) Monitoring the Kruger National Park's rivers. Presentation to the research opportunities workshop, KNPRRP, at Skukuza. 28-29 August.
JEWITT G P W, WEEKS D C, HERITAGE G, VAN NIEKERK A, GORGENS A H M & O'KEEFFE J H (1997) The impact of flood attenuation on the common fish species of the Sabie River system, Mpumalanga, South Africa, a knowledge-based simulation exercise. Proceedings of the Third International Conference on River Flood hydraulics. Stellenbosch. 5-7 November. Pages 473-484.
O'KEEFFE J H (1998) Towards implementation of the RHP by the end of 1999: A strategic plan. Presentation to the National Coordinating Committee of the NAEBP. 19 May.
ROWNTREE K M, WADESON R A & O'KEEFFE J H (1998) Geomorphological zonation for ecological river typing. Proceedings of the Congress of the Southern African Association for Geomorphology. July.
O'KEEFFE J H (1998) Possible organisation and objectives for a South African National Rivers Research Programme. Paper presented on behalf of the Institute for Water Research, Rhodes University, at the National Rivers Initiative (SASAQS), Pietermaritzburg. 29 June - 1 July.
O'KEEFFE J H (1998) A Classification System for the rivers of the Kruger National Park. Presentation to the Monitoring Liaison Committee, KNPRRP. 10 and 11 June.
O'KEEFFE J H (1998) Instream Low Flow Requirements for forestry applications. Presentation to the DWAF East Cape Forestry Liaison Committee. Cradock. 13 March.
O'KEEFFE J H (1998) River Importance. Presentation to the Mhlatuze Catchment Stakeholders Meeting. Richards Bay. 20 April.
O'KEEFFE J H (1999) Links between terrestrial and riverine processes in a catchment. Presentation to the Land Cover Classification Conference. Skukuza. 14 January.
O'KEEFFE J H (1999) Introduction and opening address. Presentation to the course on The Role and Use of Aquatic Biomonitoring. Grahamstown. 22-26 February.
O'KEEFFE J H (1999) Ecological goals for rivers. Presentation to the course on The Role and Use of Aquatic Biomonitoring. Grahamstown. 22-26 February.
O'KEEFFE J H (1999) The different levels of Reserve determination. Presentation to the Short Course on Reserve Determinations and Procedures. CSIR Pretoria, 30 March.
O'KEEFFE J H (1999) Overview and objectives of the ecological study. Presentation to the meeting of the stakeholders of the Olifants River. Olifants River Lodge, 19 May.
O'KEEFFE J H (1999) Desired Future State and Management Class. Presentation to the meeting of the stakeholders of the Olifants River. Olifants River Lodge, 19 May.
O'KEEFFE J H (1999) Present Ecological Status of the Olifants River. Presentation to the meeting of the stakeholders of the Olifants River. Olifants River Lodge, 19 May.
O'KEEFFE J H & HUGHES D A (1999) Linking ecological stresses to modified flow regimes.Paper presented at the 35th Annual Conference of the Southern African Society of Aquatic Scientists, Swakopmund, Namibia, 27 June to 1 July.
O'KEEFFE J H & HUGHES D A (1999) The Kruger Rivers Programme Contribution: Linking ecological stresses to modified flow regimes. Paper presented at the conference on Integrated Management of River Ecosystems: an International Experience. Bergendal, Kruger National Park. 10 - 11 August.
O'KEEFFE J H (1999) The South African experience in assessing and managing environmental flow requirements. Paper presented at the Environmental Flows Workshop, Harare, Zimbabwe. 26 August.
O'KEEFFE J H (1999) Determining, monitoring and managing the ecological reserve. Paper presented at the Nature Conservation and Scientific Services River Management Workshop, Skukuza, Kruger National Park, November 4 and 5.
O'KEEFFE J H (2000) Assessing and managing environmental flow requirements. Paper presented to the course AIntroduction to EIA@, presented by Coastal and Environmental Services and Rhodes University. January 31 to February 4. 24 pages.
O'KEEFFE J H (2000) The methodoly for the Ecological Reserve. Presentation to the Ngagane River specialist group, February 10th, Ladysmith, KwaZulu/Natal.
O'KEEFFE J H (2000) Introduction and opening address. Presentation to the course on The Role and Use of Aquatic Biomonitoring. Grahamstown. 21-24 February.
O'KEEFFE J H (2000) Ecological goals for rivers. Presentation to the course on The Role and Use of Aquatic Biomonitoring. Grahamstown. 21-24 February.
O'KEEFFE J H (2000) Setting ecological objectives. Presentation to the LWRRDC Stream Restoration Workshop, March 12th, Melbourne, Australia.
O'KEEFFE J H & PALMER C G (2000) Application of ecological research to the development of a new South African water law. Presentation to the CSIRO, March 21st, Canberra, Australia.
O'KEEFFE J H (2000) Present Ecological State of the Olifants River. Presentation to the Olifants River stakeholder group, May 2nd, Loskop Dam.
O'KEEFFE J H (2000) Results of the specialist Ecological Management Class meeting for the Olifants River. Presentation to the Olifants River stakeholder group, May 2nd, Loskop Dam.
O'KEEFFE J H (2000) Reserve development in the Eastern Cape. Presentation to the DWAF workshop on strategic planning. Grahamstown. August 14th.
O'KEEFFE J H, HUGHES D A AND THARME R E (2001) The Flow Stress-Response Method. Keynote address to the 28th Congress of the International Association of Theoretical and Applied Limnology, Melbourne, 4th to 9th February.
O'KEEFFE J H (2001) Planning for the Reserve: An explanation of the Reserve and the role of catchment stakeholders. Presentation to the Kat River Valley Catchment Forum. Mpofu, eastern Cape. 3rd May.
O'KEEFFE J H, O'KEEFFE A AND PALMER C G (2001) Ecological sustainability: separating the myths from the management. Paper presented at the 36th annual conference of the Southern African Society of Aquatic Scientists. Aventura Eiland Resort, Northern Province. 1st to 6th July.
O'KEEFFE J H AND SCHOFIELD N (2001) Global drivers and the status of the world's aquatic ecosystems. Opening keynote address to the 2nd National Conference on Aquatic Environments, November 20-23, Townsville, Queensland, Australia.
O'KEEFFE J H AND HUGHES D A (2002) The Flow Stressor-Response method for analysing flow modifications: Applications and developments. Paper presented to the 4th International Ecohydraulics Symposium "Environmental Flows for River Systems", Cape Town, March 3-8.
O'KEEFFE J H (2003) Environmental flows - a review of methods. Keynote address to the Norwegian R & D Programme on Environmental Flows. Oslo, Norway, February 11 -12.
O'KEEFFE J H (2003) New methods for the determination of environmental flows for rivers. Paper presented at the Norwegian R & D Programme on Environmental Flows. Oslo, Norway, February 11 -12.
O'KEEFFE J H AND PALMER C G (2003) Some, for all, for ever - implementing the South African Water Act, No. 36 of 1998. Paper presented at the 2nd International Seminar on Watershed Management, Wisconsin, USA, June 15 - 28.
O'KEEFFE J H (2004) A Framework for a Freshwater Biophysical Diversity Conservation Strategy. Presentation to the East Cape WWF Freshwater Biodiversity Workshop, June 18th.
O'KEEFFE J H (2004) Local capacity building for healthy watershed planning and management: some principles and definitions. Presentation to the Third International Seminar on Watershed Management. Wingspread Conference Center, Racine, Wisconsin. June 22nd to July 7th.
O'KEEFFE J H (2004) Local capacity building for healthy watershed planning and management: An African perspective. Presentation to the Third International Seminar on Watershed Management. Wingspread Conference Center, Racine, Wisconsin. June 22nd to July 7th.
O'KEEFFE J H (2004) Freshwater research experience in South Africa. Presentation to the DIVERSITAS Freshwater Biodiversity Cross-Cutting Network Scientific Committee. UNESCO, Paris, 14th to 16th June.
FORSTER L, ADAMS J, BELCHER T, BROWN C A, GROBLER D F, KELBE B, LOUW D, O'KEEFFE J H, TSHWETE L (2004) Supporting the NWA through training and capacity building: The role of the FETWater Network. Paper presented at the SASAqS Congress, Midrand, July 5th - 8th.
Conference Poster Papers
O'KEEFFE J H (1982). Age determination of Bulinus globosus in the field. Poster paper presented at the Royal Society of Tropical Medicine and Hygiene, meeting on Schistosomiasis. British Museum (Natural History), London, May.
O'KEEFFE J H (1984). High temperature and seasonal rainfall limit Bulinus globosus in a tropical climate. Poster paper presented at the Symposium on southern Hemisphere Limnology. Wilderness, South Africa, July 2-7.
O'KEEFFE J H (1984). Seasonal population growth of Simulium chutteri in the Great Fish River. Poster paper presented at the Symposium on southern Hemisphere Limnology. Wilderness, South Africa, July 2-7.
PALMER R W and O'KEEFFE J H (1986). Downstream effects of impoundments. Poster paper presented at the Congress of the Limnological Society of southern Africa. Windhoek, Namibia, June 30 - July 4.
O'KEEFFE J H and DE MOOR F C (1986). Changes in the benthic fauna and water chemistry of the Great Fish River following the opening of the Orange/Fish tunnel. Paper presented at the Congress of the Limnological Society of southern Africa. Windhoek, Namibia, June 30 - July 4.
BYREN B, PALMER R W, DAVIES B R and O'KEEFFE, J H (1988). Downstream effects of impoundments on the water chemistry of the Buffalo River. Congress of the Limnological Society of Southern Africa. Pietermaritzburg, June 27-29.
DAVIES B R, O'KEEFFE J H, BYREN B A and PALMER R W (1988). Downstream effects of impoundments. Poster Paper presented at the Fourth International Symposium on Regulated Rivers. Loughborough, United Kingdom, August 15-19.
Consultancy and Other Reports
O'KEEFFE J H (1983). The regulation of simuliid populations in the Great Fish River. Report No 10. Institute for Freshwater Studies. Annual Reports 1982/83. Rhodes University.
O'KEEFFE J H (1984). An ecological survey of South African rivers. Report No 8. Institute for Freshwater Studies, Annual Reports, 1983/84.
O'KEEFFE J H (1984). A definition of conservation aims, with specific reference to South African rivers. Report to the Rivers Advisory Committee, August 8.
O'KEEFFE J H (1985). An ecological survey of South African rivers. Report No 17. Institute for Freshwater Studies, Annual Reports 1983/84, Rhodes University.
O'KEEFFE J H (1985). The conservation status of the Sabie and Groot-Letaba Rivers within the Kruger National Park. Special Report No 85/2. Institute for Freshwater Studies, Rhodes University.
O'KEEFFE J H and PALMER R W (1986). Methods and approaches for assessing the downstream effects of dams on the Buffalo and Great Fish Rivers. Report to a CSIR meeting. Cape Town, March 10.
O'KEEFFE J H (1986). Assessing South African rivers. Report No 25. Institute for Freshwater Studies, 1985/86. Rhodes University.
PALMER R W and O'KEEFFE J H (1986). Downstream effects of impoundments: A review. Unpublished report of the Institute for Freshwater Studies, Rhodes University.
PALMER R W and O'KEEFFE J H (1986). Downstream effects of the impoundments on the Buffalo River in the eastern Cape Province. Report No 2.6. Institute for Freshwater Studies, 1985/6, Rhodes University.
O'KEEFFE J H (1987). A framework for a national river research programme. Report to the Working Group for river ecosystems, CSIR. 11 pages.
O'KEEFFE J H (1987). Ecological impacts of an interbasin transfer of water to the Yellowwoods River (Eastern Cape Province): a preliminary assessment. Institute for Freshwater Studies Special Report No. 3/87. CONFIDENTIAL.
O'KEEFFE J H (1988). Proposed developments of the water resources of the Mbashe River: A preliminary assessment of the environmental effects. Report to the Government of the Transkei. CONFIDENTIAL.
O'KEEFFE J H (1990). Ecological effects of the Amatole water transfer scheme. Report to the Department of Water Affairs, Pretoria. 50 pages. CONFIDENTIAL.
O'KEEFFE J H and DAVIES B R (1990). Management of water releases from proposed impoundments on the Sabie and Sand Rivers: ecological consequences for the rivers within the Kruger National Park. Report to Chunnett, Fourie and Partners, Pretoria. 18 pages. CONFIDENTIAL.
O'KEEFFE J H (1990). Report of an investigation of water quality in the upper Mooi River. Report to Natal Parks Board. 6 pages. CONFIDENTIAL
O'KEEFFE J H (1990). Kubusi River, Ecological Assessment. A report for the Department of Water Affairs, Directorate: Design Services. 23 pages. CONFIDENTIAL.
GRANGE N, SCOTT P J, and O'KEEFFE J H (1991). Water Quality monitoring study - Kowie River estuary, Port Alfred. Report to Port Alfred Municipality. 51 Pages.
PALMER R W and O'KEEFFE J H (1991). Water quality and supply. Specialist Report No. 4 for the Environmental Impact Assessment on mining activities on the eastern shores of Lake St. Lucia. 20 Pages.
ROWNTREE K and O'KEEFFE J H (1991). Assessment of alternative water supply schemes for the proposed Kingsa/Tojan mining operation. Key Issue Report No. 13 for the Environmental Impact Assessment on mining activities on the eastern shores of Lake St.Lucia. 23 Pages.
VAN GINKEL C E and O'KEEFFE J H (1991). An assessment of the bacteriological contamination in the Buffalo River Catchment. Report to the C.S.I.R., September 1991. 11 pages CONFIDENTIAL
O'KEEFFE J H AND PALMER C G (1992). Ingwelala Share Block: Effects of a dam being constructed upstream on the Nhlaralumi River. Report to The Division of Forest Science and Technology, C.S.I.R. 4 Pages.
O'KEEFFE J H (1993) Relevant Environmental Impact Prognosis of the proposed Graspan Dam, Tsitsikamma River. Report to Mr. N C Anderson. 32 Pages.
HUGHES D A, HAIGH E, SAMI K AND O'KEEFFE J H (1994) The effects of a release of water from the Wriggleswade Dam down the Nahoon River, August 1993. Report to the Department of Water Affairs and Forestry. 43 Pages.
O'KEEFFE J H AND UYS M (1994) An assessment of the invertebrate fauna of the Klipplaat, Black Kei and Great Kei Rivers downstream of the proposed dam sites at Waklyn and Stichel, using the SASS4 biotic Index. Chapter 4.6 in Queenstown Regional Water Supply Feasibility Study, Department of Water Affairs and Forestry. 10 Pages.
O'KEEFFE J H AND DE MOOR F C (1994) Hydraulic habitat requirements of invertebrate communities, with special reference to the Kouga, Groot and Kruis Rivers, southern Cape. Chapter 12 in The Algoa Reconnaissance Flow Assessment Workshop, Department of Water Affairs and Forestry. 13 Pages.
O'KEEFFE J H, AVIS A M, PALMER R W AND SKELTON P H (1995) Lower Orange River baseline study. Report to the Namdeb Co., Oranjemund. 67 Pages.
O'KEEFFE J H AND PALMER C G (1996) Water conservation and the environment. Discussion paper for the National Water Conservation Campaign. 8 Pages.
O'KEEFFE J H (1996) An assessment of the ecological integrity of the Great Fish and Sundays Rivers. Catchment condition. Report to the Department of Water Affairs and Forestry. 10 Pages
O'KEEFFE J H (1996) The benthic invertebrates of the Sabie-Sand River system. Starter document for the Sabie-Sand Instream Flow Requirement Workshop, Aan de Vliet, Mpumalanga, August 18-22. 46 Pages.
O'KEEFFE J H and WHITFIELD A K (1996) Estuarine freshwater requirements. Report of a workshop held at Port Elizabeth, May 6-7. 14 Pages.
O'KEEFFE J H and MULLER W J (1996) Relevant Environmental Impact Prognosis of the proposed Yellowwoods River regional sewerage works. Consultancy Report to Gibb Africa, East London. 18 Pages.
O'KEEFFE J H (2000) Ground and surface water. Chapter 3 of the Environmental Impact Assessment for the Corridor Sands Mining Project, Chibuto, Mozambique. 37 Pages. CONFIDENTIAL.
O'KEEFFE J H (2000) A review of the Australian National River Restoration Framework. Report for the LWRRDC, Canberra, Australia. 6 Pages.
O'KEEFFE J H & HUGHES D A (2000) An enhanced desktop estimate of the Ecological Reserve (water quantity) for the Kouga River at the proposed Guernakop dam site. Department of Water Affairs and Forestry, Pretoria. 7 Pages.
O'KEEFFE J H (2000) Aquatic invertebrates of the Swartkops catchment: an analysis for the determination of the Ecological Reserve. Report for the Ecological Reserve Assessment of the Swartkops River. Department of Water Affairs and Forestry, Pretoria 15 Pages.
O'KEEFFE J H (2000) Review of Report 1 from the Thukela water project: Specialist study on the ecological impacts relating to the creation of lake environments. Department of Water Affairs and Forestry, Pretoria. 3 Pages.
O'KEEFFE J H (2000) Review of Report 2 from the Thukela water project: Specialist study on the impacts of the proposed dams on the downstream aquatic and riparian ecosystems. Department of Water Affairs and Forestry, Pretoria. 3 Pages
O'KEEFFE J H (2000) Aquatic invertebrates: present ecological state, habitat requirements and potential impacts of the transfers. Appendix F of the Amatole Systems analysis: Ecological Reserve Assessment. Department of Water Affairs and Forestry, Pretoria. 34 Pages.
O'KEEFFE J H (2000) Qualitative assessment of the invertebrate impacts of water transfers to the KwanKwebu tributary and the Yellowwoods River. Report for the Amatole Systems analysis: Ecological Reserve Assessment. Department of Water Affairs and Forestry, Pretoria. 3 Pages.
O'KEEFFE J H AND LOUW D (2000) The process by which the specialist team assesses the ecological/instream flow requirements for rivers in an ecological Reserve assessment. Olifants River Ecological Water Requirements Assessment. Department of Water Affairs and Forestry, Pretoria. 5 Pages.
O'KEEFFE J H (2001) Upgrading of Hoxane water abstraction works: Specialist technical report on the bio-physical impacts of different design options on the aquatic ecosystem. Department of Water Affairs and Forestry, Pretoria. 17 Pages.
O'KEEFFE J H (2003) External review of overall environmental methodology, as described in the draft inception report. Report to the TMG aquifer feasibility study, City of Cape Town. 3 pages.
O'KEEFFE J H (in press) Global developments in environmental flow management. Chapter 3 in a review of environmental water allocations. Land and Water Australia, Canberra, ACT, Australia. 28 pages.
O'KEEFFE J H (in press)The role of science - underlying theoretical development and assumptions. Chapter 5 in a review of environmental water allocations. Land and Water Australia, Canberra, ACT, Australia. 19 pages.
O'KEEFFE J H (in press) A vision for the future of Environmental Water Allocations. Chapter in a review of environmental water allocations. Land and Water Australia, Canberra, ACT, Australia. 19 pages.
O'KEEFFE J H (2004) TMG aquifer feasibility study and pilot project External review of task 4 - ecological and environmental investigation. Preliminary phase (final draft report, April 2004). Report to Cape Town City Council. 4 pages.
O'KEEFFE J H (2004) TMG aquifer feasibility study and pilot project External review of the risk assessment report. Report to Cape Town City Council. 2 pages.
O'KEEFFE J H, ARTHINGTON A, DUDGEON D, & SULLIVAN C (2004) Bio-sustainability in freshwater ecosystems. A science plan for developing the conservation and sustainable use of biodiversity, developed by the DIVERSITAS Freshwater Cross Cutting Network. 10 pages.
O'KEEFFE J H, GUDAS M, MEINERS OCHA M, & ZHANG L (2004) Local capacity building for healthy watersheds. Report to the International Conference on Local Capacity Building for Healthy Watersheds, University of Wisconsin, Stevens Point. 23 pages.
HOLLAND A J & O'KEEFFE J H (2004) Details of University courses in South Africa with relevance to the ecological Reserve. Report to FetWater Committee. 8 pages.
BIRKHOLZ S A & O'KEEFFE J H (2004) A pilot project, applied to the Kat River, Eastern Cape province, to develop method for the Cooperative evolution of a catchment management Plan, Involving stakeholders, government agencies, and specialists. Inception report to the WRC for project number 5/4916.
Thesis
O'KEEFFE J H (1979). Snails of the genus Bulinus at Vipingo, on the Kenya coast. A preliminary survey. BSc honours thesis, School of Environmental Sciences, University of East Anglia. 80 pages.
O'KEEFFE J H (1982). Population biology of snail hosts for Schistosoma haematobium on the Kenya coast. PhD thesis, Imperial College, University of London. 368 pages.