Preface. I: Assessment of fish community structure and dynamics. 1. Selecting gear for monitoring fish assemblages (L.E. Miranda and H.L. Schramm, Jr) 2. Longitudinal hydroacoustic survey of fish in the Elbe River supplemented by direct capture (J. Kubecka J. Frouzova, A. Vilcinskas, C. Wolter and O. Slavik) 3. Relative selectivity of hoopnetting and electric fishing in the Lower Mississippi River (H. L. Schramm, Jr and L.L. Pugh) 4. Relative selectivity of hoopnetting and electric fishing in the Lower Mississippi River (H.L. Schramm, Jr and L.L. Pugh) II: Large river fisheries. 5. The fish community of the River Thames: status, pressures and management (S.N. Hughes and D.J. Willis) 6. Cyclic behaviour of potamodomous fish in large rivers (R. Quiros and J.C. Vidal) 7. Seasonal movements of coarse fish in lowland rivers and their relevance to fisheries management (M.C. Lucas, T. Mercer, G. Peirson and P.A. Frear) 8. Seasonal and diel changes of young-of-the-year fish in the channelised stretch of the Vltava River (Bohemia, Czech Republic) (O. Slavik and L. Bartos) III: Habitat requirements 9. Trout, summer flows and irrigation canals: a study of habitat condition and trout populations within a complex system (D.J. Walks, H.W. Li and G.H, Reeves) 10. Dynamics of a population of brown trout (Salmo trutta) and fluctuations in physical habitat conditions - experiments on a stream in the pyrenees; first results (V. Gourand, C. Sabaton, P. Baran and P. Lim) 11. Fish habitat associations, community structure, density and biomass in natural and channelised lowland streams in teh catchment o the River Wensum, UK (N.T. Punchard, M.R. Perrow adn A.J.D. Jowit) 12. A methodology to evaluate physical habitat for reproduction of brown trout (Salmo trutta L.) and relation with fry recruitment (M. Delacoste, P. Baran and J.-M. Lascaux) IV: Anthropogenic Impacts. 13. Wimbleball Pumped Storage Scheme: integration of water resource management, engineering design and operational control to compliment the needs of the salmonid fisheries in the River Exe (H.T. Sambrook and I.G. Cowx) 14. Impacts of hydraulic engineering on the dynamics and production potential of floodplain fish populations in Bangladesh: implications for management (A.S. Halls, D.D. Hoggarth and K. Debnath) 15. Management of fisheries in rivers used for potable abstractions in drought conditions: public health versus ecology (S. Axford) 16. Impacts of the Ok Tedi copper mine on fish populations in the Fly River System, Papua New Guinea (S. Swales, B.S. Figa, K.A. Bakowa and C.D. tenakanai) 17. Riverine fish stock and regional agronomic responses to hydrological and climatic regins inte the upper Yazoo River basin (D.C. Jackson and Q. Ye) V: Rehabilitation of river fisheries. 18. An assessment of anthropogenic activities son and rehabilitation of river fisheries: current state and future direction (M.C. Lucas and G. Marmulla) 19. Defining and achieving fish habitat rehabilitation in large, low-gradient rivers (P.B. Bayley, K. O'Hara and R. Steel) 20. Watershed analysis and restoration in the siuslaw River, Oregon, USA (N.B Armantrout) 21. Planning implications of a habitat improvement project conducted on a Newfoundland stream (M.C. van Zyll de Jong, I.G. Cowx and D.A. Scruton) 22. Provision for the juvenile stages of coarse fish in river rehabilitation projects (B.P. Hodgson and J.W. Eaton) VI: Management. 23. Principles and approaches for river fisheries management (R.L. Welcomme) 24. Fisheries science and the managerial imperative (P. Hickley and M. Aprahamian) 25. The use of spawning targets for salmon fisher management in England and Wales (N.J. Milner, I.C. Davidson, R.J. Wyatt and M. Aprahamian) 26. The effectiveness of rod and net fishery bye-laws in reducing exploitation of spring salmon on the Welsh Dee (I.C. Davidson, R.J. Cove and N.J. Milner) 27. From sector to system: towards a multidimensional management in the Lower Amazon floodplain (F. Castro and D. McGrath) 28. The role of Nkhotakota Wildlife Reserve, Malawi, Africa, in the conservation of the mpasa, Opsaridium microlepis (Gunther) (D. Teddle) 29. Conservation status, threats and future prospects for the survival of freshwater fishes of the Western Cape Province, South Africa (N.D. Impson and K.C.D. Hamman) 30. Conservation of endangered fish species in the face of water resource development schemes in the Guadiana River, Portugal: harmony of the incompatible (I.B. Cowx and M.J. Collares-Pereira) Subject Index. Species Index.