2019-03-162019-03-161993p. 153-158. In: Christensen, V. and D. Pauly (eds.) Trophic models of aquatic ecosystems. ICLARM Conference Proceedings, 26, 390 p.https://hdl.handle.net/20.500.12348/2907The trophic ecosystem modelling software, ECOPATH II, was used to analyze the Lake Chad system, Africa, during its "normal" phase, the period between 1969 and 1972. Reasonable estimates of population-related parameters for fish and invertebrate stocks were obtained, and an energy flow diagram for the whole lake is presented.application/pdfCC BY 4.0An ECOPATH II model of the Lake Chad systemBook Chapter