| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D1 Geographical | 
                                Bathymetric map | 
                    
afr20-01.gif
                            
                
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                                     D2 Climatic | 
                                Depth isotherms at Station H1 (months, 1987-1988) | 
                    
afr20-03.gif
                            
                
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                                     D3 Hydrodynamic | 
                                Fluctuations in the lake level (1885-1990) | 
                    
afr20-02.gif
                            
                
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                                 | E. Water Quality | 
                                                     E1 Transparency | 
                                Secchi depth recordings, by season (1987-1988) | 
                    
afr20-04.gif
                            
                
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                                     E4 DO | 
                                DO distribution, monthly, Station H1 (1987-1988) | 
                    
afr20-05.gif
                            
                
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                        Temperature DO profile by depth (Apr. 1987, July 1988) | 
                    
afr20-06.gif
                            
                
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                                     E6 Chlorophyll | 
                                Depth profiles of chlorophyll a during stratification (1988) | 
                    
afr20-07.gif
                            
                
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                        Depth profiles of chlorophyll-a in central, south and north (1988) | 
                    
afr20-08.gif
                            
                
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                                 | F. Biological Features | 
                                                     F3 Primary Production | 
                                Phytoplankton production, by depth (1987-1988) | 
                    
afr20-09.gif
                            
                
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                                     F4 Biomass | 
                                Zooplankton (1987-1988) | 
                    
afr20-10.gif
                            
                
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                        Zooplankton composition (1987-1988) | 
                    
afr20-11.gif
                            
                
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                                     F5 Fishery Products | 
                                Catch per boat vs. lake level (1972-1975, 1977-1988) | 
                    
afr20-12.gif
                            
                
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                        Species composition of fish catches (1952-1988) | 
                    
afr20-13.gif
                            
                
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