Figure 73. Model I (Model in Figure 10) Results: Analog simulations of seasonal variation in fish biomass, fish density, bird biomass, and bird number under three conditions of drainage with June 1974 May 1975 rainfall. a) primitive (predrainage) condition b) present condition c) maximum drainage conditions (1.5 ft lower than present) NOTE: See Appendix Table B-i for mean, maximum, and minimum acreages of water area under different conditions.