| gptkbp:instanceOf | gptkb:coral_reef 
 | 
                        
                            
                                | gptkbp:area | approximately 344,400 square kilometers 
 | 
                        
                            
                                | gptkbp:contains | gptkb:lake atolls
 mangroves
 seagrass beds
 cays
 
 | 
                        
                            
                                | gptkbp:country | gptkb:Australia 
 | 
                        
                            
                                | gptkbp:discoveredByEuropeans | James Cook 
 | 
                        
                            
                                | gptkbp:economic_value | over AUD 6 billion per year 
 | 
                        
                            
                                | gptkbp:ecosystem | gptkb:marine_ecosystem 
 | 
                        
                            
                                | gptkbp:governedBy | gptkb:Government_of_India 
 | 
                        
                            
                                | gptkbp:homeTo | dolphins whales
 dugongs
 marine turtles
 seabirds
 over 1,500 species of fish
 over 400 species of coral
 
 | 
                        
                            
                                | gptkbp:largest_coral_reef_system | true 
 | 
                        
                            
                                | gptkbp:latitude_range | between 9°S and 24°S 
 | 
                        
                            
                                | gptkbp:length | over 2,300 kilometers 
 | 
                        
                            
                                | gptkbp:location | gptkb:Coral_Sea 
 | 
                        
                            
                                | gptkbp:longitude_range | between 142°E and 154°E 
 | 
                        
                            
                                | gptkbp:notable_for | biodiversity snorkeling
 scuba diving
 colorful coral formations
 
 | 
                        
                            
                                | gptkbp:number_of_individual_reefs | over 2,900 
 | 
                        
                            
                                | gptkbp:numberOfIslands | over 900 
 | 
                        
                            
                                | gptkbp:part_of | gptkb:Great_Barrier_Reef_Marine_Park 
 | 
                        
                            
                                | gptkbp:protectedBy | gptkb:Great_Barrier_Reef_Marine_Park_Authority 
 | 
                        
                            
                                | gptkbp:recognizedBy | one of the Seven Natural Wonders of the World 
 | 
                        
                            
                                | gptkbp:state | gptkb:Queensland 
 | 
                        
                            
                                | gptkbp:studiedBy | marine biologists 
 | 
                        
                            
                                | gptkbp:subject | gptkb:scientific_research documentaries
 conservation efforts
 
 | 
                        
                            
                                | gptkbp:threats | climate change overfishing
 pollution
 coral bleaching
 
 | 
                        
                            
                                | gptkbp:touristAttraction | true 
 | 
                        
                            
                                | gptkbp:UNESCOWorldHeritageSite | 1981 
 | 
                        
                            
                                | gptkbp:visitedBy | over 2 million people annually 
 | 
                        
                            
                                | gptkbp:year_discovered_by_Europeans | 1770 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:the_Pacific 
 | 
                        
                            
                                | gptkbp:bfsLayer | 7 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | the Great Barrier Reef 
 |