Related by context. Frequent words. (Click for all words.) 69 coral reefs 67 marine ecosystems 64 coastal ecosystems 63 marine biodiversity 63 reefs 62 coral reef 61 ecosystems 61 marine habitats 60 aquatic ecosystems 60 Coral reefs 59 marine ecosystem 59 corals 56 biodiversity 55 coral 54 habitats 54 oceans 54 species 52 coral bleaching 52 habitat 52 biosphere 51 mangrove forests 51 reef 51 fragile ecosystems 50 oyster reefs 50 wildlife habitats 49 estuaries 49 fauna 49 shorelines 49 mangroves 49 freshwater 49 tropical forests 48 biologically diverse 48 estuarine 48 marine organisms 48 Coral Triangle 48 marine mammals 47 watersheds 47 flora 47 migratory species 47 forest ecosystems 47 fragile ecosystem 47 ocean acidification 47 coastal wetlands 46 bird species 46 tropical rainforests 46 ecological 46 frog species 46 tropical forest 46 aquatic species 46 bio diversity 46 mammals 46 oceanic 46 coastlines 46 mangrove forest 46 sea creatures 46 ocean 45 estuary 45 wildlife habitat 45 amphibians 45 ecosystem 45 aquatic organisms 45 ecology 44 Northwestern Hawaiian Islands 44 seagrass 44 seaweeds 44 wetlands 44 invertebrates 44 Corals 44 glaciers 44 sea turtles 43 imperiled species 43 overfished 43 Great Barrier Reef 43 algal blooms 43 mammal species 43 landmass 43 aquatic 43 plankton 43 atmospheric carbon dioxide 43 fisheries 43 polar regions 43 seabirds 43 rainforests 43 wetland 43 biodiversity conservation 43 coastal waters 43 Species 43 birdlife 43 whale sharks 42 soils 42 Reefs 42 oceanographic 42 Ecosystems 42 tropical rainforest 42 sea otters 42 salinity 42 organisms 42 diatoms 42 boreal forest 42 waterways 42 Biodiversity