| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D0 Sketch map | 
                                Lake and surroundings | 
                    
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                                     D1 Geographical | 
                                Bathymetric map | 
                    
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                        Isotherms | 
                    
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                                 | E. Water Quality | 
                                                     E1 Transparency | 
                                Mean Secchi disc readings and ranges (1969-1974) | 
                    
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                                     E4 DO | 
                                Seasonal isopleths of DO (1969, 1973, 1974) | 
                    
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                                     E6 Chlorophyll | 
                                Past trend of the average concentration of total chlorophyll (1968-1988) | 
                    
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                        Seasonal distribtuion of Chlorophyll-a (1972-1974) | 
                    
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                                     E7 Nitrogen | 
                                Seasonal distributions of total inorganic nitrogen (1969-1974) | 
                    
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                                     E8 Phosphorus | 
                                Seasonal distributions of total phosphorus (1963-1974) | 
                    
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                                 | F. Biological Features | 
                                                     F3 Primary Production | 
                                Phytoplankton stocks and composition (1969, 1970) | 
                    
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                        Primary production per unit area (1968-1988) | 
                    
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                        Seasonal change in relative abundance of zooplankton populations (1969) | 
                    
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                        Seasonal distribution of phytoplankton stocks and composition (1969, 1973, 1974) | 
                    
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