| Category | Item Name | Item Title | Item | More Info. | 
                                            
                                 | D. Physiographic Features | D0 Sketch map | Areas of concern | nam03-16.gif |  | 
                    
                        |  | D1 Geographical | Bathymetric map | nam03-01.gif |  | 
                    
                        |  | D2 Climatic | Temperature-depth profils  (Apr. Jun. Jul. Aug. Oct., 1976) | nam03-02.gif |  | 
                    
                                 | E. Water Quality | E2 pH | pH-depth profile (Jun. Jul. Aug. Oct., 1976) | nam03-04.gif |  | 
                    
                        |  | E4 DO | Horizontal (lake surface) distribution profile (1964) | nam03-05.gif |  | 
                    
                        |  | E6 Chlorophyll | Chlorophyll-a, primary productivity, total phosphorus and Secch disc transparency (1974) | nam03-09.gif |  | 
                    
                        |  | E7 Nitrogen | Horizontal distribution profile, upper 20m and below 20m (1964) | nam03-06.gif |  | 
                    
                        |  | E8 Phosphorus | PO4-P, Horizontal (lake surface) distribution profile (1964) | nam03-07.gif |  | 
                    
                        |  | E9 Chloride, EC and Conductivity | Seasonal and sparial distribution of chlorophyll, Plume River, nearshore, offshore (monthly 1980) | nam03-10.gif |  | 
                    
                        |  |  | Seasonal and spatial distribution of chloride, Plume River, nearshore, offshore (monthly 1980) | nam03-08.gif |  | 
                    
                                 | I. Deterioration and Hazards | I2 Toxic Contamination | Past trend of dieldrin residues in fish (1967-1985) | nam03-13.gif |  | 
                    
                        |  |  | Past trend of mercury residues in fish (1967-1985) | nam03-14.gif |  | 
                    
                        |  |  | Past trend of total DDT residues in fish (1967-1985) | nam03-11.gif |  | 
                    
                        |  |  | Past trend of total PCB residues in fish (1967-1985) | nam03-12.gif |  | 
                    
                        |  |  | PCB concentrations in surface sediments in fish (1967-1985) | nam03-15.gif |  | 
                    
                        |  |  | Seasonal variation in Secchi depth in fish (1967-1985) | nam03-03.gif |  |