| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D1 Geographical | 
                                Bathymetric map | 
                    
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                                     D2 Climatic | 
                                Temperature-depth profile (1976) | 
                    
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                                 | E. Water Quality | 
                                                     E1 Transparency | 
                                Seasonal changes of transparency (1976-1977) | 
                    
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                                     E4 DO | 
                                Seasonal and vertical distribution of DO (1976) | 
                    
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                                     E6 Chlorophyll | 
                                Seasonal change of chlorophyll-a (1976-1977) | 
                    
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                                     E7 Nitrogen | 
                                Seasonal change of nitrogen concentration (1976) | 
                    
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                                     E8 Phosphorus | 
                                Seasonal change of phosphorus concentration (1976) | 
                    
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                                     E9 Chloride, EC and Conductivity | 
                                Past trends of chloride concentration (1910-1980) | 
                    
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                                 | F. Biological Features | 
                                                     F3 Primary Production | 
                                Algal primary production rate, monthly (1980) | 
                    
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                                     F4 Biomass | 
                                Biomass of phytoplanktons, zooplankton and Bacterioplankton (1980) | 
                    
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                        Past trend of total zooplankton biomass (1976-1980) | 
                    
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