| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D2 Climatic | 
                                Mean temp., Precip. (1961-1971) | 
                    
afr-01-d2.txt
                            
                
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                                 | E. Water Quality | 
                                                     E1 Transparency | 
                                Monthly, surface (1970) | 
                    
afr-01-e1.txt
                            
                
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                                     E2 pH | 
                                Monthly, surface (1970) | 
                    
afr-01-e2.txt
                            
                
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                                     E4 DO | 
                                Monthly, surface (1970) | 
                    
afr-01-e4.txt
                            
                
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                                     E7 Nitrogen | 
                                NO3-N, monthly (1970) | 
                    
afr-01-e7.txt
                            
                
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                                     E8 Phosphorus | 
                                PO4-P, monthly (1970) | 
                    
afr-01-e8.txt
                            
                
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                                 | F. Biological Features | 
                                                     F4 Biomass | 
                                Epipelic algae in the drying phase (1967, 1968); Biomass [mg (chlorophyll a), Blue-green algae almost 100% (1967-1968); Benthic habitats during the recovery phase, Area of habitat (1979) | 
                    
afr-01-f4.txt
                            
                
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                                 | G. Socio-economic Conditions | 
                                                     G3 Population | 
                                Number, Density, Major City (1977, 1979) | 
                    
afr-01-g3.txt
                            
                
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