The Functioning of Freshwater Ecosystems.

1. Introduction L. Tonolli 2. History and development of the freshwater production section of IBP J. Rzoska 3. The effects of physical variables on freshwater production: analyses based on models M. Straskraba 4. Chemical budgets and nutrient pathways H. L. Golterman and F.A. Kouwe 5. Primary production D. F. Westlake, M. S. Adams, M. E. Bindloss, G. G. Ganj, G. C. Gerloff, U. T. Hammer, P. Javornicky, J. F. Koonce, A. F. H. Marker, M. D. McCracken, B. Moss, A. Nauwerck, I. L. Pyrina, J. A. P. Steel, M. Tilzer and C. J. Walters 6. Secondary production N. C. Morgan, T. Backiel, G. Bretschko, A. Duncan, A. Hillbricht-Ilkowska, Z. Kajak, J. F. Kitchell, P. Larsson, C. Leveque, A. Nauwerck, F. Schiemer and J. E. Thorpe 7. Organic matter and decomposers G. W. Saunders, K. C. Cummins, D.Z. Gak, E. Pieczyhska, V. Straskrabova and R.G. Wetzel 8. Trophic relationships and efficiencies P. Blafka, T. Backiel and F.B. Taub 9. Estimating the productivity of lakes and reservoirs M. Brvlinskv 10. Dynamic models of lake ecosystems C.J. Walters, R. A. Park and J. F. Koonce 11. General characteristics of freshwater ecosystems based on Soviet IBP studies G. G. Winberg.