Preface. List of participants and photo. Fisheries research towards resource management on Lake Tanganyika; H. Moelsa, et al. A three-dimensional circulation model of Lake Tanganyika; V. Podsetchine, et al. Mathematical modelling of Lake Baikas hydrodynamics; E.A. Tsvetova. Limnological annual cycle inferred from physical-chemical fluctuations at three stations of Lake Tanganyika; P.-D. Plisnier, et al. Meromixis, stratification and internal waves in Kigoma waters of Lake Tanganyika; D.B.R. Chitamwebwa. The inflow of the Rusizi River to Lake Tanganyika; A. Vandelannoote, et al. Chemical composition of the small rivers of the north-western part of Lake Tanganyika; S. Kimbadi, et al. The stoichiometry of particulate nutrients in Lake Tanganyika - implications for nutrient limitation of phytoplankton; M. Jarvinen, et al. Phytoplankton in Lake Tanganyika - vertical and horizontal distribution of in vivo fluorescence; K. Salonen, et al. Spatial and temporal changes in mesozooplankton communities in Lake Tanganyika; H. Kurki, et al. Vertical distribution and migration of pelagic Copepoda in Lake Tanganyika; I. Vuorinen, et al. Macrozooplankton communities in Lake Tanganyika indicate food chain differences between the northern part and the main basins; H. Kurki, et al. Feedin ecology of Lates stappersi in Lake Tanganyika; P. Mannini, et al. Genetic differentiation of endemic nile perch Lates stappersi (Centropomidae, Pisces) Populations in Lake Tanganyika suggested by RAPD markers; L. Kuusipalo. Trophic structure of Lake Tanganyika: caron flows in the pelagic food web; J. Sarvala, et al. The food and feeding behaviour of Limnothrissa Miodon (Boulenger, 1906) in Lake Kariba, Zimbabwe; J.J.Mandima. Prospects for the fishery on the small Pelagic Rastrineobola argentea in Lake Victoria; J.H. Wanink. Spatial and temporal patterns of zooplankton standing biomass and production in Lake Malawi; K. Irvine, R. Waya. Importance of reproductive rate, prey selection and the survival of pelagic fish of the African Great Lakes; A.B. Thomson.