Environmental assessment of the East African Rift Valley lakes

Aquatic Sciences

Volumn 65, Issue 3, 2003, Pages 254-271

  Odada, Eric O ^a   Olago, Daniel O ^a   Bugenyi, Fred ^b   Kulindwa, Kassim ^c   Karimumuryango, Jerome ^d   West, Kelly ^e   Ntiba, Micheni ^a   Wandiga, Shem ^f   Aloo Obudho, Peninah ^g   Achola, Pius ^h  

^a UNIVERSITY OF NAIROBI   (Kenya)

^b MAKERERE UNIVERSITY   (Uganda)

^c UNIVERSITY OF DAR ES SALAAM   (Tanzania)

^d Director General de L'NECN   (Burundi)

^e IUCN Eastern Africa Regional Office   (Kenya)

^f Kenya National Academy of Sciences   (Kenya)

^g KENYATTA UNIVERSITY   (Kenya)

^h Kenya Red Cross Society   (Kenya)

Author keywords

Biodiversity loss; Causal chain analysis; Habitat modification; Over exploitation; Policy options; Pollution; Rift Valley lakes; Transboundary diagnostic analysis

Indexed keywords

BIODIVERSITY; ECOSYSTEM MANAGEMENT; ENVIRONMENTAL ASSESSMENT; FISHERY; HUMAN ACTIVITY; LAKE ECOSYSTEM; POLLUTION; SUSTAINABLE DEVELOPMENT;

AFRICA;

RIPARIA;

EID: 0141976843     PISSN: 10151621     EISSN: 14209055     Source Type: Journal    
DOI: 10.1007/s00027-003-0638-9     Document Type: Review

References (124)

1. Alabaster, J., 1981. Review of the state of aquatic pollution of East African inland waters. FAO/CIFA Occas. Paper 9, 36 pp.
2. Alin, S. R., A. S. Cohen, R. Bills, M. M. Gashagaza, E. Michel, J.-J. Tiercelin, K. Martens, P. Coveliers, S. K. Mboko, K. West, M. Soreghan, S. Kimbadi and G. Ntakimazi, 1999. Effects of landscape disturbance on animal communities in Lake Tanganyika, East Africa. Conservation Biology 13(5): 1017-1033.
3. Beadle, L. C., 1981. The Inland Waters of Tropical Africa: An Introduction to Tropical Limnology. 2nd edition. Longman, London.
4. Beauchamp, R. S. A. 1939. Chemistry and hydrography of Lakes Tanganyika and Nyassa. Nature 146: 253-256.
5. Beeton, A., 2002. Large freshwater lakes: present state, trends and future. Environmental Conservation 29(1): 21-38.
6. Birkett, C. M., R. Murtugudde and J. A. Allan, 1999. Indian Ocean climate event brings floods to East Africa's lakes and Sudd Marsh. Geophys. Res. Lett. 26: 1031-1034.
7. Bootsma, H. A. and R. E. Hecky, 1993. Conservation of the African Great Lakes: a limnological perspective. Conservation Biology (Special Issue) 7(3): 644-656.
8. Bootsma, H. A. and R. E. Hecky, 1999. Water Quality Report. SDAC/GEF Lake Malawi/Nyasa Biodiversity Conservation Project. 276 pp.
9. Boucher, K., 1975. Global Climate. The English Universities Press Ltd. 326 pp.
10. Branstrator, D. K., L. M. Ndawula and J. T. Lehman, 1996. Zooplankton dynamics in Lake Victoria. In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach, Toronto, pp. 337-355.
11. Bromage, T., 1995. Paleobiogeography of the Malawi Rift: Vertebrate and invertebrate faunal contexts of the Chiwondo Beds, northern Malawi, J. Human Evolution 28: 37-58.
12. Brooks, J. L, 1950. Speciation in ancient lakes. Quarterly Review of Biology (Baltimore) 25(30-36): 131-176
13. Bugenyi, F. W. B. and K. M. Magumba, 1996. The present physicochemical ecology of Lake Victoria, Uganda. In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach, Toronto, pp. 141-154.
14. Butzer, K. W., 1980. The Holocene lake plain of North Rudolph, East Africa. Physical Geography 1: 42-58.
15. Bwathondi, P. O. J., R. Ogutu-Ohwayo and J. Ogari, 2001. Lake Victoria Fisheries Management Plan. LVFRP/TECH/01/16, Technical Document No. 16, 64 pp. Edited by I. G. Cowx and K. Crean.
16. Calder, I. R., R. L. Hall, H. G. Bastable, H. M. Gunston, O. Shela, A. Chirwa and R. Kafundu, 1995. The impact of land use change on water resources in sub-Saharan Africa: a modelling study of Lake Malawi. Journal of Hydrology 170: 123-135.
17. Capart, A., 1949. Sondage et carte bathymetrique du Lac Tanganyika. Resultats scientifiques de l'exploration hydrobiologique du Lac Tanganyika (1946-1947). Institut Royal des Sciences Naturelles de Belgique 2: 1-16.
18. Chale, F., 2000. Studies in Tanzanian Waters. Pollution Special Study. Pollution Control and Other Measures to Protect Biodiversity in Lake Tanganyika (UNDP/GEF/RAF/92/G32). 20 p.
19. Chapman, L., C. Chapman, L. Kaufman and Liem, K., 1992. The role of papyrus swamps as barriers to fish dispersal: A case study and implications for fish diversity in the Lake Victoria basin. In: Biodiversity, Fisheries and the Future of Lake Victoria, Conference Abstracts, p. 6.
20. Coenen, E. J., G. Hanek and P. Kotilainen, 1993. Shoreline classification of Lake Tanganyika Based on the Results of an Aerial Frame Survey. FAO/FINNIDA Research for the Management of the Fisheries on Lake Tanganyika. GCP/RAF/271/FIN-TD/10 (En): 11 p.
21. Cohen, A. S., R. Bills, C. Z. Cocquyt and A. G. Caljon, 1993. The impact of sediment pollution on biodiversity in Lake Tanganyika. Conservation Biology 7: 667-677.
22. Cohen, A. S., L. Kaufman and R. Ogutu-Ohwayo, 1996. Anthropogenic threats, impacts and conservation strategies in the African Great, Lakes: A review. In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of the East African Lakes. Gordon and Breach, Toronto, pp 575-624
23. Cohen, A. S., M. R. Talbot, S. M. Awramik, D. L. Dettman and P. Abell, 1997. Lake level and paleoenvironmental history of Lake Tanganyika, Africa, as inferred from late Holocene and modern stromatolites. Geological Society of America Bulletin 109: 444-460.
24. Conway, D., 2002. Extreme rainfall events and lake level changes in East Africa: recent events and historical precedents. In: E. O. Odada and D. O. Olago (eds.) The East African Great Lakes: Limnology, Palaeolimnology and Biodiversity. Advances in Global Change Research, Kluwer Academic Publishers, pp. 63-92.
25. Coulter, G. W., 1970. Population changes within a group of fish species in Lake Tanganyika following their exploitation. Journal of Fish Biology 2: 329-353.
26. st edition. Oxford University Press, New York.
27. Coulter, G. W., 1994. Lake Tanganyika. In: speciation in Ancient Lakes. Edited by Martens, K., Goddeeris, B. and Coulter, G., Archiv fur Hydrobiologie, 44: 13-18.
28. st edition. Oxford University Press, New York, pp. 49-75.
29. Crossley, R., 1979. Variations in the level of Lake Malawi. Malawian Geogr., 19: 5-13
30. Duda, A., 2002. Restoring and protecting the African Great Lake Basin ecosystems - lessons from the North American Great Lakes and the GEF. In: E. O. Odada and D. O. Olago (eds.) The East African Great Lakes: Limnology, Palaeolimnology and Biodiversity. Advances in Global Change Research, Kluwer Academic Publishers, pp. 537-556.
31. East African Meteorological Department, 1970. Temperature data for stations in East Africa, Part 1. Kenya, Part 2. Tanzania, Part 3. Uganda. Survey of Kenya, Nairobi.
32. Ebinger, C. J., A. L. Deino, R. E. Drake and A. L. Tesha, 1989. Chronology of Volcanism and Rift Basin Propagation: Rungwe Volcanic Province, East Africa, J. Geophysical Research 94: 15785-15803.
33. Ebinger, C. J, A. L. Deino, A. L. Tesha, T. Becker and U. Ring, 1993. Tectonic controls on rift basin morphology: evolution of the Northern Malawi (Nyasa) Rift, J. Geophysical Research 98: 821-836.
34. Eccles, D. H., 1974. An outline of the physical limnology of Lake Malawi (Lake Nyasa). Limnology and Oceanography (Grafton), 19: 730-742.
35. Edmond, J. M., R. F. Stallard, H. Craig, R. F. Weiss and G. W. Coulter, 1993. Nutrient chemistry of the water column of Lake Tanganyika. Limnology and Oceanography 38: 725-738.
36. FAO, 1998. Fisheries Statistics: Capture production. FAO, Rome; FAO Yearbook 1996, Vol. 82, 678 p.
37. FAO, 2000. The state of world fisheries and aquaculture. FAO, Rome 2000. 142 p.
38. Ferguson A. J. D. and B. J. Harbott, 1982. Geographical, physical and chemical aspects of Lake Turkana, In: Lake Turkana: A Report on the Findings of the Lake Turkana Project, 1972-1975, (Edited by A. J. Hopson). Overseas Development Administration, London, pp. 1-107.
39. Finke, J., 2001. Lake Turkana Mankind's Origins. http://bluegecko. crosswinds.net/tribes/turkana/prehist.htm
40. Freilink, A. B., 1991. Water hyacinth in Lake Victoria: a report on an aerial survey on 12-13 June 1990. In: K. Thompson (ed.) The Water Hyacinth in Uganda. Ecology Distribution Problems and Strategy for Control. Workshop: 22-23 October 1991. FAO TCP/UGA/9153/A.
41. Fryer, G. and T. D. Iles, 1972. The Cichlid Fishes of the Great Lakes of Africa: their biology and evolution. Oliver and Boyd, Edinburgh.
42. Gasse, F., V. Lédée, M. Massault and J. Fontes, 1989. Water-level fluctuations of Lake Tanganyika in phase with oceanic changes during the last glaciation and deglaciation. Nature 342: 57-59.
43. Gonfiantini, R., G. M. Zuppi, D. H. Eccles and W. Ferro, 1979. Isotope investigation of Lake Malawi. In: Isotopes in lake Studies. Proceedings on the application of nuclear techniques to study of lake dynamics organized by the International Atomic Energy Agency. IAEA, Vienna. 195-205.
44. Haack, B. and J. Messina, 2001. Satellite remote sensing: Monitoring the Omo River Delta in East Africa using remote sensing. Earth Observation Magazine (EOM).
45. Haberyan, K. and R. E. Hecky, 1987. The late Pleistocene and Holocene stratigraphy and paleolimnology of Lakes Kivu and Tanganyika. Paleo. Paleo. Paleo. 61: 169-197.
46. Halfman J. D. and T. C. Johnson, 1988. High-resolution record of cyclic climatic change during the past 4Ka from Lake Turkana, Kenya. Geology 16: 496-500.
47. Halfman J. D., T. C. Johnson, W. J. Showers and G. Lister, 1989. Authigenic low Mg-calcite in Lake Turkana, Kenya. Journal of African Earth Sciences 8: 533-540.
48. Halfman, J. D., D. F. Jacobson, C. M. Cannella, K. A. Haberyan and B. P. Finney, 1992. Fossil diatoms and the mid to late Holocene palaeolimnology of Lake Turkana, Kenya: a reconnaissance study. J. Palaeolimnol. 7: 23-35.
49. Hanek, G., E. J. Coenen and P. Kotilainen, 1993. Aerial Frame Survey of Lake Tanganyika Fisheries. FAO/FINNIDA Research for the Management of the Fisheries on Lake Tanganyika. GCP/RAF/271/FIN-TD/09 (En): 34 p.
50. Hastenrath, S., 1984. The Glaciers of Equatorial East Africa. D. Reidel Publ. Co., Dordrecht, 352 pp.
51. Hastenrath, S., 1991. Climate Dynamics of the Tropics. Kluwer Academic Publishers, Dordrecht, Boston, London, 488 pp.
52. Hecky, R. E. 1993. The Eutrophication of Lake Victoria. Proc. Int. Ass. Theor. Appl. Limnol. 25: 39-48.
53. Hecky, R. E. and F. W. B. Bugenyi, 1992. Hydrology and Chemistry of the African Great Lakes and Water Quality issues: Problems and Solutions Miltt. Int. Ver. Theor. Angew. Limnol. 23: 45-54.
54. Hecky, R. E., F. W. B. Bugenyi, P. O. B. Ochumba, J. F. Talling, R. Mugidde, M. Gophen and L. Kaufman, 1994. Deoxygenation of the hypolimnion of Lake Victoria. Limnol. Oceanogr. 39(6): 1476-1481.
55. Hopson A. J., (ed.), 1982. Lake Turkana: A Report on the Findings of the Lake Turkana Project, 1972-1975, Vols. 1-6, Overseas Development Administration, London, 1900 p.
56. Hughes, R. H. and J. S. Hughes, 1992. A Directory of African Wetlands. IUCN/UNEP/WCMC. 820p.
57. Hulme M., R. M. Doherty, T. Ngara, M. G. New and D. Lister 2001. African climate change: 1900-2100. Climate Research 17: 145-168.
58. Hutchinson, G. E., 1975. A Treatise on Limnology. Vol. I, Part 1, Geography and Physics of Lakes. Wiley, Chichester.
59. Ikiara, M., 1999. Sustainability, Livelihoods, Production and Effort Supply in a Declining Fishery: The Case of Kenya's Lake Victoria Fisheries. Thela Thesis, Amsterdam, 1999.
60. IPCC, 1996. Climate Change 1995: Impacts, Adaptations and Mitigation of Climate Change, Scientific and Technical Analysis. Contribution of Working Group II to the Second Assessment Report of the Inter-governmental Panel on Climate Change. Chapter 10, Hydrology and Freshwater Ecology. Cambridge University Press.
61. IPCC, 2001. Special Report on The Regional Impacts of Climate Change: An Assessment of Vulnerability. Intergovernmental Panel on Climate Change, WMO/UNEP.
62. Johnson, T. C., J. D. Halfman, B. R. Rosendahl and G. S. Lister, 1987. Climatic and tectonic effects on sedimentation in a rift valley lake: evidence from high-resolution seismic profiles, Lake Turkana, Kenya. Geol. Soc. of Am. Bull. 98: 439-447.
63. Johnson, T. C., K. Kelts and E. Odada, 2000. The Holocene history of Lake Victoria. Ambio 29(1): 2-14.
64. Johnson, T. C. and P. Ng'ang'a, 1990. Reflections on a rift lake. In: B. J. Kate (ed.) Lacustrine Basin Exploration, Case Studies and Modern Analogues, AAPG. Mem. 50: 113-135.
65. Johnson, T. C., C. A. Scholz, M. R. Talbot, K. Kelts, R. D. Ricketts, G. Ngobi, K. R. M. Beuning, I. Ssemanda and J. W. McGill, 1996. Late Pleistocene desiccation of Lake Victoria and rapid evolution of cichlid fishes. Science 273: 109-1093.
66. Kallqvist, T., L. Lien and D. Liti, 1988. Lake Turkana Limnological Study 1985-1988. Norwegian Institute for Water Research (NIVA) and Kenya Marine Fisheries Research Institute (KEM-FRI), 1988. 98p.
67. Kaufman, L., 1992. Catastrophic Change in species-rich freshwater ecosystems: The Lessons from Lake Victoria. BioScience 42 (11).
68. Kansiime, F. and F. W. B. Bugenyi, 1996. Specific studies on limnology and hydrology of the Great East African Lakes: A case study of nutrient and pollutant loading into the Northern Region of Lake Victoria, Uganda. Final Report, Kampala, sponsored by UNESCO ROSTA.
69. Kansiime, F. and M. Nalubega, 1999. Wastewater treatment by a Natural Wetland: The Nakivubo swamp, Uganda - processes and implications. A Balkema Rotterdam.
70. Kay, M., 2001. Smallholder Irrigation Technology: Prospects for Sub-Saharan Africa. International Programme for Technology and Research in Irrigation and Drainage, Knowledge Synthesis Report No. 3, March, 2001. FAO.
71. Kling, H. J., R. Mugidde and R. E. Hecky. 2001. Recent changes in the phytoplankton community of Lake Victoria in response to eutrophication, p. 47-66. In: M. Munawar and R. E. Hecky (eds.). Great Lakes of the World: Food webs, health and integrity. Backhuys, Leiden.
72. Komarek, J. and H. Kling, 1991. Variation in six planktonic cyanophyte genera in Lake Victoria (East Africa). Archiv. Hydrobiol. Suppl. 61: 21-45.
73. Kudhongania, A. W., D. L. Ocenodongo and J. O. Okaronon, 1996. Antrhopogenic perturbations on the Lake Victoria ecosystem. In: T C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach, Toronto, pp. 625-632.
74. Lehman, J. T., 1996. Pelagic food webs of the East African Great Lakes. In: J. C. Johnson and E. O. Odada (eds.) The Limnology, climatology and Paleoclimatology of the East African Lakes. Gordon and Breach Publishers, pp. 281-301.
75. Lowe-McConnell, R. H., 1995. Ecological Studies in Tropical Fish Communities. Cambridge Tropical Biology Series, Cambridge University Press, 382 p.
76. Lowe-McConnell, R., 1997. EAFRO and after: a guide to key events affecting fish communities in Lake Victoria (East Africa). S. Afr. J. Sci. 93: 570-574.
77. Martens, K., 2002. Redundancy and ecosystem stability in the fluctuating environments of long-lived lakes. In: E. O. Odada and D.O. Olago (eds.) The East African Great Lakes: Limnology, Palaeolimnology and Biodiversity. Advances in Global Change Research, Kluwer Academic Publishers, pp. 309-319.
78. 39Ar dating of the hominidbearing Plio-Pliestocene sequence at Koobi Fora, Lake Turkana, northern Kenya. Bull. Geol. Soc. Am. 96: 159-175.
79. Mugidde, R., 1993. The increase in phytoplankton productivity and biomass in Lake Victoria (Uganda). Int. Ass. Theor. Appl. Limnol. Proc. 25: 846-849.
80. Muthuri, F. M., M. B. Jone and S. K. Imbamba, 1989. Primary Productivity of Papyrus (Cyperus Papyrus) in a Tropical Swamp: Lake Naivasha, Kenya. Biomass 18: 1-14.
81. Nicholson, S. E., 1996. A review of climate dynamics and climate variability in Eastern Africa. In: T. C. Johnson and E. O. Odada (eds.) The Limnology, Climatology and Paleoclimatology of the East African Lakes, Gordon and Breach Publishers, Australia, pp. 25-56.
82. Nriagu, J., 1992. Toxic metal pollution in Africa. The Science of the Total Environment 121: 1-37.
83. Ntiba, M. J., W. M. Kudoja and C. T. Mukasa, 2001. Management issues in the Lake Victoria watershed. Lakes and Reservoirs: Research and Management 6: 211-216.
84. Nyamweru, C. K., Rifts and Volcanoes: A Study of the East African Rift System. Thomas Nelson and Sons, Nairobi. 128 pp.
85. Ochumba, P. B. O., 1996. Measurement of water currents, temperature, dissolved oxygen and winds on the Kenyan Lake Victoria. In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach Publishers, Toronto, pp. 155-167.
86. Odada, E. O., D. O. Olago, K. Kulindwa, F. Bugenyi, M. Ntiba, J. Karimumuryanga, K. West, P. Aloo-Obudho, S. Wandiga and P. Ochola, 2002. Scaling and Scoping Report Sub-region 47 (a,b,c,d), East African Rift Valley Lakes. GIWA Project Office, Kalmar, Sweden.
87. Ogallo, L. J., 1989. The spatial and temporal patterns of the East African seasonal rainfall derived from principal components analysis. Int. J. Clim. 9: 145-167.
88. Ogutu-Ohwayo, R., 1990. The decline of the native fishes of Lake Victoria and Kyoga (East Africa) and the impact of introduced species, especially Nile Perch, Lates niloticus and Nile tilapia, Oreochromis niloticus. Environ. Biol. Fisheries 27: 81-86.
89. Oldfield, F. and K. Alverson, 2003. The societal relevance of palaeoenvironmental research. In: K. D. Alverson, R. S. Bradley and T. F. Pedersen (eds.) Paleoclimate, Global Change and the Future, pp. 1-11. Springer, Berlin.
90. Owen, R. B., W. Barthelmew., R.W. Renaut and A. Vincens, 1982. Palaeolimnology and archaeology of Holocene deposits northeast of Lake Turkana, Kenya. Nature 298: 523-529.
91. Owen, R., R. Crossley, T. Johnson, D. Tweddle, I. Kornfield, S. Davison, D. Eccles, and D. Engstrom, 1990. Major low levels of Lake Malawi and their implications for speciation rates in cichlid fisheries. Proc. Roy. Soc. London B. 240: 519-553.
92. Pearce, M. J., 1995. Effects of exploitation on the pelagic fish community in the south of Lake Tanganyika, pp. 425-442. In: T. J. Pitcher, P. J. B. Hart (eds.) The Impacts of Species Changes in African Lakes. Chapman and Hall, London.
93. Peng, T. and W. S. Broecker, 1980. Gas exchange rates for three closed basin lakes. Limnology and Oceanography 25: 789-796.
94. Petit, P. and A. Kiyuku, 1995. Changes in the pelagic fisheries of northern Lake Tanganyika during the 1980s, pp. 443-455. In: T. J. Pitcher, P. J. B. Hart (eds.) The Impacts of Species Changes in African Lakes. Chapman and Hall, London.
95. Ribbink, A. J., 2001. Lake Malawi/Niassa/Nyasa Ecoregion: Biophysical Reconnaissance. WWF Southern African Regional Programme Office (WWF SARPO), Harare, Zimbabwe.
96. Ropelewski, C. F. and M. S. Halpert, 1987. Global and regional scale precipitation patterns associated with the El Niño/Southern Oscillation. Mon. Wea. Rev. 115: 1606-1626.
97. Scheren, P. A. G. M., H. A. Zanting and A. M. C. Lemmens, 2000. Estimation of water pollution sources in Lake Victoria, East Africa: Application and elaboration of the rapid assessment methodology. Journal of Environmental Management 58: 235-248.
98. Scholz, C. A. and B. R. Rosendahl, 1988. Low lake stands in Lakes Malawi and Tanganyika, East Africa, delineated with multifold seismic data. Science 240: 1645-1648.
99. Seehausen, O., 1996. Lake Victoria Rock Cichlids: Taxonomy, Ecology and Distribution. Verduijn Press, Zevenhuizen, The Netherlands.
100. Seehausen, O., J. J. M. van Alphen and F. Witte, 1997. Cichlid diversity thereatened by eutrophication that curbs sexual selection. Science 277: 1808-1811.
101. Shumway, C. A., 1999. Forgotten waters: Freshwater and marine ecosystems in Africa. Strategies for biodiversity conservation and sustainable development. Boston: Boston University 167 p.
102. Snoeks, J., 2000. How well known is the ichthyodiversity of the large East African Lakes? In: Rossiter, A. and Kawanabe, H. (eds.) Ancient Lakes: Biodiversity, Ecology and Evolution. Advances in Ecological Research 31: 17-38.
103. Snoeks, J., L. Ruber and E. Verheyen, 1994. The Tanganyika problem: comments on the taxonomy and distribution patterns of its cichlid fauna. In: Speciation in Ancient Lakes, edited by K. Martens, B. Goddeeris and G. Coulter, Archiv für Hydrobiologie 44: 355-372.
104. Spigel, R. H. and G. W. Coulter, 1996. Comparison of hydrology and physical limnology of the East African Great Lakes: Tanganyika, Malawi, Victoria, Kivu and Turkana (with reference to some North American Great Lakes). In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach, Toronto, pp. 103-139.
105. Talling, J. F., 1965. The photosynthetic in East African Lakes. Int. Rev. Hydrobiol. 50: 1-32.
106. Talling, J. F., 1966. The annual cycle of stratification and phytoplankton growth in Lake Victoria. Internationale Revue der gesamten Hydrobiologie und Hydrographie 51(4): 545-621.
107. Tiercelin, J.-J. and A. Mondeguer, 1991. The geology of the Tanganyika trough. In: G. W. Coulter (ed.) Lake Tanganyika and its Life. Oxford University Press, London, pp 7-48.
108. Tiercelin, J.-J. and K.-E. Lezzar, 2002. A 300 million years history of rift lakes in Central and East Africa: an updated broad review. In: E. O. Odada and D. O. Olago (eds.) The East African Great Lakes: Limnology, Palaeolimnology and Biodiversity. Advances in Global Change Research, Kluwer Academic Publishers, pp. 3-60.
109. Tweddle, D., 1992. Conservation and threats to the resources of Lake Malawi. Mitt. Internat. Verein. Limnol. 23: 17-24.
110. Twongo, T., 1996. Growing impact of water hyacinth on nearshore environments on Lakes Victoria and Kyoga (East Africa). In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach, Toronto, pp. 633-642.
111. UNDP, 1994. Pollution control and other measures to protect biodiversity in Lake Tanganyika. GEF Project Document RAF/922/G32, New York.
112. Vollmer, M. K., R. F Weiss. and H. A. Bootsma, 2002. Ventilation of Lake Malawi/Nyasa. In: E. O. Odada and D. O. Olago (eds.) The East African Great Lakes: Limnology, Palaeolimnology and Biodiversity. Advances in Global Change Research, Kluwer Academic Publishers, pp. 209-234.
113. Wandiga, S. and Onyari, J., 1987. The concentration of heavy metals: Mn, Fe, Cu, Zn, Cd and Pb in sediments and fish from the Winam Gulf of Lake Victoria and fish bought in Mombasa town markets. Kenya Journal of Science 8: 5-18.
114. Wanink, J. H. and F. Witte, 2000. Rapid morphological changes following niche shift in the Zooplanktivorous Cyprinid Rastrineobola argentea from Lake Victoria. Neth. J. Zool. 50(3): 365-375.
115. Willoughby, N. G., I. G. Watson and T. Twongo, 1996. Preliminary studies on the effects of water hyacinth on the diversity, abundance and ecology of the littoral fish fauna in Lake Victoria, Uganda. In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach, Toronto, pp. 643-655.
116. Wilson, E., J. Sutherland and A. Ekola, 1999. Scientists discover previously unknown source of pollution that is killing the world's second largest freshwater lake. Retrieved October 29: 2002, from Future Harvest, from: http://www.furureharvest.org/ news/11051999.shtml
117. Witte, F., T Goldschmidt., J. M. Wanink, M. J. P. Oijen, E. L. M. Van Witte-Mass and N. Bouton, 1992. The destruction of endemic species flock; quantitative data on decline of haplochromine cichlids of Lake Victoria. Environ. Biol. Fisheries. 29: 1-28.
118. Witte, F., T. Goldschmidt, P. C. Goudswaard, E. F. B. Katunzi, O. C. Mkumbo, O. Seehausen and J. H. Wanink, 1999. Lake Victoria's ecological changes and their relationships with the riparian societies. In: Ancient Lakes: their cultural and biological diversity. H. Kawanabe, G. W. Coulter and A. C. Roosevelt (eds.). Kenobi Productions, Ghent, Belgium, pp. 189-202.
119. World Bank, 1996. Kenya, Tanzania and Uganda: Lake Victoria Environmental Management Project. GEF Documentation Report No. 15541 - ARF
120. World Bank, 1999. Country profiles (Burundi, D. R. Congo, Tanzania, Zambia). Web page: http://www.worldbank.org.html. extdr/offrep/afr.
121. Wüest, A., G. Piepke and J. D. Halfman, 1996. Combined effects of dissolved solids and temperature on the density stratification of Lake Malawi. In: T. C. Johnson and E. Odada (eds.) The Limnology, Climatology and Paleoclimatology of East African Lakes: Gordon and Breach, Toronto, pp. 183-202.
122. WWF SARPO, 2001. In Lake Malawi/Niassa/Nyasa Ecoregion: Biophysical Reconnaissance. A. J., Ribbink.
123. Yuretich, R. F., 1979. Modern sediments and sedimentary processes in Lake Rudolf (Lake Turkana), Eastern Rift Valley, Kenya. Sedimentology 26: 313-331.
124. Yuretich, R. F and T. E. Cerling, 1983. Hydrogeochemistry of Lake Turkana, Kenya: mass balance and mineral reactions in an alkaline lake. Geochim. Cosmochim. Acta 47: 1099-1109.