1. The Parakrama Samudra Project — scope and objectives,.- 2. Energy and water budget of a tropical man-made lake,.- 3. Thermal stratification, mixis and advective currents in the Parakrama Samudra Reservoir, Sri Lanka,.- 4. Phosphorus and phosphatase dynamics in Parakrama Samudra based on diurnal observations,.- 5. An assessment of the phytoplankton biomass and primary productivity of Parakrama Samudra, a shallow man-made lake in Sri Lanka,.- 6. Some remarks on long-term and seasonal changes in the zooplankton of Parakrama Samudra,.- 7. The composition, density and distribution of the zooplankton in Parakrama Samudra,.- 8. A diurnal study of the planktonic rotifer populations in Parakrama Samudra Reservoir, Sri Lanka,.- 9. The influence of temperature upon the duration of embryonic development of tropical Brachionus species (Rotifera),.- 10. Feeding studies with natural food particles on tropical species of planktonic rotifers,.- 11. Sediment characteristics and benthic community oxygen uptake rates in Parakrama Samudra, an ancient man-made lake in Sri Lanka,.- 12. A contribution to the ecology of the fish fauna of the Parakrama Samudra Reservoir.- 13. Feeding ecology, assimilation efficiencies and energetics of two herbivorous fish: Sarotherodon (Tilapia) mossambicus (Peters) and Puntius filamentosus (Cuv. et Val.),.- 14. Aspects of gut passage of algal cells in Sarotherodon mossambicus (Peters), (Pisces, Cichlidae),.- 15. Contributions to the functional anatomy of the feeding apparatus of five cyprinids of Parakrama Samudra (Sri Lanka),.- 16. Changes in body condition and proximate composition with maturation in Puntius sarana and Sarotherodon mossambicus,.- 17. Reproductive strategies of some major fish species in Parakrama Samudra Reservoir and their possible impact on the ecosystem — a theoretical consideration,.- 18. The ecology of cormorants (genus Phalacrocorax),.- 19. Parakrama Samudra Project — a summary of main results,.- Floristic and faunistic surveys.- 20. A contribution to the phytoplankton species composition of Parakrama Samudra, an ancient man-made lake in Sri Lanka,.- 21. Caddisflies (Trichoptera) from Parakrama Samudra, an ancient man-made lake in Sri Lanka,.- Species index.