The African Great Lakes consist of large, deep rift valley lakes (e.g. Malawi & Tanganyika) and shallower lakes between the Eastern and Western Rifts (e.g. Victoria). They are a group comparable in size to the North American Great Lakes, but are old. Most are seasonally thermally stratified, and wind is the decisive factor that determines the annual cycle of cooling and mixing. Lakes Tanganyika, Malawi and Kivu are meromictic, with deep relict hypolimnia. Large magnitudes and time scales of periodic internal motion, where these have been measured, appear unique among lakes. These lakes harbour the world's richest lacustrine fish faunas, and the family Cichlidae provides the supreme example of geographically circumscribed vertebrate evolution. The lakes provide a unique comparative series of natural laboratories for evolutionary studies. Primary production is generally high, but in the deeper lakes standing stocks of plankton and of small fish species are low. These pelagic populations are characterised by very high P:B ratios. The fisheries are productive and of socio-economic importance. Large-scale mechanised fishing is not compatible with the survival of the diverse fish communities. Cichlids appear especially vulnerable to unselective fishing. Aquatic reserves might offer a means of survival for at least some communities. Various pollution threats exist. Because water retention times are long, extremely long for some deep lakes, and flushing rates are low, the lakes are vulnerable to pollution which would be long-lasting. Introductions of alien fishes have mostly had undesirable or disastrous results. While the faunas are one of the significant natural heritages of mankind, their conservation must realistically be linked to the legitimate development of the lakes for the well-being of the people who live there. Scientific value alone will not protect the lakes. Just as survival of African terrestrial wildlife in extensive reserves depends heavily upon tourism, so also might the cichlid flocks in underwater reserves. Greater interest from the international scientific community is needed to further rational development and conservation of these great lakes.
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Alabaster, J.S. 1981. Review of the state of aquatic pollution of East African inland waters. CIFA Occas. Pap. 9: 1–36.
Balon, E.K. & M.N. Bruton. 1986. Introduction of alien species or why scientific advice is not heeded. Env. Biol. Fish. 16: 225–230.
Barel, C.D.N., R. Dorit, P.H. Greenwood, G. Fryer, N. Hughes, P.B.N. Jackson, H. Kawanabe, R.H. Lowe-McConnell, M. Nagoshi, A.J. Ribbink, E. Trewavas, F. Witte & K. Yamaoka. 1985. Destruction of fisheries in Africa's lakes. Nature 315: 19–20.
Beadle, L.C. 1981. The inland waters of tropical Africa, 2nd ed., Longman, New York. 475 pp.
Benda, R.S. 1979. Analysis of catch data from 1968 to 1976 from nine fish landings in the Kenya waters of Lake Victoria. J. Fish Biol. 15: 385–387.
Burgis, M.J. 1984. An estimate of zooplankton biomass for Lake Tanganyika. Verh. int. Ver. Limnol. 22: 1199–1203.
CIFA 1985. Introduction of species and conservation of genetic resources. Committee for Inland Fisheries of Africa, sixth session, Lusaka, Zambia, 7–11 October 1985, CIFA/85/13, FAO, Rome. 18 pp.
Coulter, G.W. 1963. Hydrological changes in relation to biological production in southern Lake Tanganyika. Limnol. Oceanogr. 8: 463–477.
Coulter, G.W. 1968. Hydrological processes and primary production in Lake Tanganyika. Proc. 11th Conf. Great Lakes Res., Int. Assoc. Great Lakes Res.: 609–626.
Coulter, G.W. 1981. Biomass, production and potential yield of the Lake Tanganyika pelagic fish community. Trans. Amer. Fish. Soc. 110: 325–335.
Craig, H. 1974. Lake Tanganyika geochemical and hydrographic study in 1973. Scripps Institute of Oceanography, University of California, San Diego, SIO Reference Series 75–3 83 pp.
Davies, B.R. & R.C. Hart. 1981. The ecology of aquatic invertebrates. pp. 51–68.In: J.J. Symoens, M. Burgis & J.J. Gaudet (ed.) The Ecology and Utilization of African Inland Waters, UNEP Reports and Proceedings, Series l, Nairobi.
Deelstra, H. 1977. Danger de pollution dans Ic lae Tanganyika (Bassins de Bujumbura). Bull. Soc. Etud. Geogr. 46: 23–53.
Deelstra, H., J.L. Power & C.T. Kenner. 1976. Chlorinated hydrocarbon residues in various fish species in Lake Tanganyika. Bull. Environ. Contamination Toxicol. 15: 689–698.
Degnbol, P. & S. Mapila. 1982. Limnological observations on the pelagic zone of Lake Malawi from 1970 to 1981. pp. 5–47.In: Biological studies on the pelagic ecosystem of Lake Malawi, FAO 1982, Fishery expansion project, Malawi, Fl: DP/MLW/75/019: 5–47, Tech. Report 1., FAO, Rome.
Dejoux, C., H. Deelstra & R.C. Wilkinson. 1981. Pollution. pp. 147–161.In: J.J. Symoens. M. Burgis & J.J. Gaudet (ed.) The Ecology and Utilization of African Inland Waters, UNEP Reports and Proceedings, Series 1, Nairobi.
Eccles, D.H. 1984. On the recent high levels of Lake Malawi. S. Afr. J. Sci. 80: 461–468.
Eccles, D.H. 1985. Lake flies and sardines — a cautionary note. Biol. Conserv. 33: 309–333.
FAO. 1982. Fisheries expansion project. Malawi. Biological studies on the pelagic ecosystem of Lake Malawi. Rome, FAO Tech. Report F1: DP/MLW/75/019. 182 pp.
FAO/SIDA 1978. Proceedings: 6th FAO/SIDA workshop on aquatic pollution in relation to protection of living resources, Nairobi and Mombassa, Kenya. FAO FIR: TPLR 78, Rome.
Fernando, C.H. & J. Holčík. 1982. The nature of fish communities: a factor influencing the fishery potential and yields of tropical lakes and reservoirs. Hydrobiologia 97: 127–140.
Fryer, G. 1960. Concerning the proposed introduction of Nile perch into Lake Victoria. E. afr. agric. J. 25: 267–70.
Fryer, G. 1984. The conservation and rational exploitation of the biota of Africa's great lakes. pp. 135–154.In: A.V. Hall (ed.) Conservation of Threatened Natural Habitats, South Africa National Scientific Programmes Report.
Fryer, G. & T.D. Iles. 1972. The cichlid fishes of the Great Lakes of Africa: their biology and evolution. Oliver and Boyd, London. 641 pp.
Gentz, J. 1983. Treasure hunt in Africa. Publication of American Association of Petroleum Geologists, October 1983.
Greenwood, P.H. 1974. Cichlid fishes of Lake Victoria, East Africa: the biology and evolution of a species flock. Bull. Brit. Mus. Nat. Hist. (Zool). Suppl. 6: 1–134.
Greenwood, P.H. 1979. Macroevolution—myth or reality? Biol. J. Linn. Soc. London: 12: 293–304.
Greenwood, P.H. 1981. Species-flocks and explosive evolution. pp. 61–74.In: P.L. Forey (ed.) Chance, Change and Challenge, British Museum (Natural History), Cambridge University Press, London.
Greenwood, P.H. 1984. African cichlids and evolutionary theories. pp. 141–154.In: A.A. Echelle & I. Kornfield (ed.) Evolution of Fish Species Flocks, University of Maine at Orono Press, Orono.
Hecky, R.E. 1984. African lakes and their trophic efficiencies: a temporal perspective. pp. 405–448.In: D.G. Meyers & J.R. Strickler (ed.) Trophic Interactions within Aquatic Ecosystems, AAAS Selected Symposium 85, Westview Press, Denver.
Hecky, R.E. & E.T. Degens. 1973. Late Pleistocene-Holocene chemical stratigraphy and paleolimnology in the Rift Valley Lakes of Central Africa. Woods Hole Oceanographic Institute Technical Report WHO 1-73-28. 144 pp.
Hecky, R.E., E.J. Fee, H.J. Kling & J.W. Rudd. 1978. Studies on the planktonic ecology of Lake Tanganyika. Can. Fish. Mar. Serv. Tech. Rep. 816. 51 pp.
Hecky, R.E. & E.J. Fee. 1981. Primary production and rates of algal growth in Lake Tanganyika. Limnol. Oceanogr. 26: 532–547.
Hecky, R.E. & H.J. Kling. 1981. The phytoplankton and protozooplankton of the euphotic zone of Lake Tanganyika. Species composition, biomass, chlorophyll content, and spatiotemporal distribution. Limnol. Oceanogr. 26: 548–564.
Hecky, R.E. & H.J. Kling. 1986. Phytoplankton ecology of the Great Lakes in the Rift Valleys of Central Africa. Ergebnisse der Limnologie (in press).
Hoogerhoud, R.J.C., F. Witte & C.D.N. Barel. 1983. The ecological differentiation of two closely resemblingHaplochromis species from Lake Victoria (H. iris andH. hiatus; Pisces, Cichlidae). Neth. J. Zool. 33: 283–305.
Hopson, A.J. 1982. Lake Turkana. Report on the findings of the Lake Turkana project. University of Sterling, Sterling.
Howard-Williams, C., W.J.R. Alexander, J.M. Bosch, E. Braune, C.A. Bruwer, R.C. Hart, J.M. King, D.S. Mitchell, K.H. Rogers, D.E. Simpson, A.J. Twinch & D.P. van Wyk. 1984. Catchment management. pp. 1–31.In: R.C. Hart & B.R. Allanson (ed.) Limnological Criteria for Management of Water Quality in the Southern Hemisphere, South African National Scientific Programmes Report 93, CSIR, Pretoria.
Howes, G. 1980. The anatomy, phylogeny and classification of bariliine cyprinid fishes. Bull. Brit. Mus. Nat. Hist. (Zool.) 37: 129–198.
Hughes, N.F. 1983. A study of the Nile perch, an introduced predator, in the Kavirondo Gulf, Lake Victoria. Report of the Oxford University Nile Perch Project, Oxford University Press, London.
Hynes, H.B.N. 1975. The stream and its valley. Verh. int. Ver. Limnol. 19: 1–15.
Iles, T.D. 1960. An opinion as to the desirability of introducing a non-indigenous zooplankton feeding fish into Lake Nyasa. CSA Symposium Hydrobiol. Inl. Fish. CSA/CCTA Publ. 63: 165–167.
Imberger, J. 1985. Thermal characteristics of standing waters: an illustration of dynamic process. pp. 7–29.In: B.R. Davies & R.D. Walmsley (ed.) Perspectives in Southern Hemisphere Limnology, Dr. W. Junk, Publishers, Dordrecht.
Jackson, P.B.N. 1960. On the desirability or otherwise of introducing fishes to waters that are foreign to them. CSA Symposium Hydrobiol. Inl. Fish. CSA/CCTA Publ. 63: 157–164.
Jackson, P.B.N. 1971. The African Great Lakes fisheries: past, present and future. Afr. J. Trop. Hydrobiol. Fish. 1: 35–49.
Kallquist, T. & B.S. Meadows. 1977. Pesticide levels in the Kenya rural environment. Afr. Environm. 2 & 3: 163–170.
Livingstone, C.A. 1981. Paleolimnology. pp. 176–182.In: J.J. Symoens, M. Burgis & J.J. Gaudet (ed.) The Ecology and Utilization of African Inland Waters, UNEP Reports and Proceedings, Series 1, Nairobi.
Marlier, G. 1959. Observations sur la biologie littorale du lac Tanganyika. Revue Zool. Bot. afr. 59: 164–183.
Marten, G.G. 1979a. Impact of fishing on the inshore fishery of Lake Victoria (East Africa). J. Fish. Res. Board Can. 36: 891–900.
Marten, G.G. 1979b. Predator removal: effect on fisheries yields in Lake Victoria (East Africa). Science 203: 646–648.
Mayr, E. 1942. Systematics and the origin of species. Columbia University Press, New York. 334 pp.
Meadows, B.S. 1980. The quality of water in the Lake Victoria Basin and its protection. Seminar Ser. Lake Victoria Basin Dev., Inst. Dev. Stud. Univ. Nairobi, 7. Rev. 1: 1–16.
Newman, F.C. 1976. Temperature steps in Lake Kivu: a bottom heated saline lake. J. Phys. Oceanogr. 6: 157–163.
Okemwa, E. 1984. Potential fishery of Nile perchLates niloticus Linn. (Pisces, Centropomidae) in Nyanza Gulf of Lake Victoria, East Africa. Hydrobiologia 108: 121–126.
Patterson, J.C., P.F. Hamblin & J. Imberger. 1984. Classification and dynamic simulation of the vertical density structure of lakes. Limnol. Oceanogr. 29: 845–861.
Pearce, M.J. 1985a. The deepwater demersal fish in the south of Lake Tanganyika. Report of Fisheries Department. Government of Zambia, Lusaka. 163 pp.
Pearce, M.J. 1985b. Some effects ofLates species on pelagic and demersal fish in Zambia waters of Lake Tanganyika. UNDP/ FAO, CIFA Document SAWG/85/WP2, FAO, Rome. 18 pp.
Ribbink, A.J., B.A. Marsh, A.C. Marsh, A.C. Ribbink & B.J. Sharp. 1983. A preliminary survey of the cichlid fishes of rocky habitats in Lake Malawi. S. Afr. J. Zool. 18: 149–310.
Serruya, C. & U. Pollingher. 1983. Lakes of the warm belt. Cambridge University Press, Cambridge. 569 pp.
Ssentongo, G.W. & R.L. Welcomme. 1985. Past history and current trends in the fisheries of Lake Victoria. pp. 123–138.In: Report of the third session of the CIFA Sub-Committee for the development and management of the fisheries of Lake Victoria, Jinja, Uganda, 4–5 October 1984, FAO Fish. Rep. 335.
Steinhorn, I. 1985. The disappearance of the long term meromictic stratification of the Dead Sea. Limnol. Oceanogr. 30: 451–472.
Talling, J.F. 1966. The annual cycle of stratification and phytoplankton growth in Lake Victoria (East Africa). Int. Rev. Hydrobiol 51: 545–621.
Talling, J.F. 1969. The incidence of vertical mixing, and some biological and chemical consequences, in tropical African lakes. Verh. int. Ver. Limnol. 17: 998–1072.
Turner, J.L. 1976. An analysis of the various fisheries of Lake Malawi, UNDP/FAO, Technical Report 1, FI: DP/MLW/71/516.
Turner, J.L. 1977a. Some effects of demersal trawling in Lake Malawi (Lake Nyasa) from 1968 to 1974. J. Fish Biol. 10: 261–271.
Turner, J.L. 1977b. Changes in the size structure of cichlid populations of Lake Malawi resulting from bottom trawling. J. Fish. Res. Board Can. 34: 232–238.
Turner, J.L. 1982. Lake flies, water fleas and sardines. pp. 165–173.In: Biological studies on the pelagic ecosystem of Lake Malawi, FAO 1982, Fishery Expansion Project, Malawi, Fl: DP/MLW/75/019, FAO Tech. Report 1.
Waters, T.F. 1977. Secondary production in inland waters. Adv. Ecol. Res. 10: 91–164.
Welcomme, R.L. 1964. Notes on the present distribution and habits of the non-endemic species ofTilapia which have been introduced into Lake Victoria. East African Freshwater Fisheries Research Organization Annual Report 1962/63.
Welcomme, R.L. 1967. Observations on the biology of the introduced species ofTilapia in Lake Victoria. Rev. Zool. Bot. afr. 76: 249–279.
Williams, W.D. (ed.) 1980. An ecological basis for water resource management. Australian National University Press, Canberra, 417 pp.
Witte, F. 1984. Ecological differentiation in Lake Victoria haplochromines: comparison of cichlid species flocks in African lakes. pp. 155–167.In: A.A. Echelle & I. Kornfield (ed.) Evolution of Fish Species Flocks, University of Maine at Orono Press, Orono.
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Coulter, G.W., Allanson, B.R., Bruton, M.N. et al. Unique qualities and special problems of the African Great Lakes. Environ Biol Fish 17, 161–183 (1986). https://doi.org/10.1007/BF00698196
- Aquatic reserves
- Fish introductions
- Lake development
- Fishery management