Related by context. Frequent words. (Click for all words.) 65 ecosystems 65 marine ecosystems 65 coral reefs 64 coastal ecosystems 63 reefs 63 marine ecosystem 61 ocean ecosystems 61 aquatic ecosystems 59 corals 58 seagrass beds 58 Coral reefs 58 coral reef 56 marine biodiversity 56 reef 56 coral 55 marine habitats 55 habitats 55 wetland habitats 54 forest ecosystems 54 mangroves 54 marine organisms 54 coral species 54 biota 53 dugongs 53 biodiversity 52 aquatic habitat 52 mangrove forests 52 biosphere 52 species 52 megafauna 52 oceans 52 coral bleaching 51 fauna 51 aquatic species 51 ecosystem 51 landmasses 51 sealife 51 estuarine 51 ecological 51 biodiversity hotspots 51 marine ecology 50 acidification 50 seamounts 50 waterbirds 50 amphibian species 50 cetaceans 50 habitat 49 estuaries 49 fragile ecosystems 49 mammals 49 organisms 49 sea creatures 49 marine turtles 49 Mangroves 49 shorelines 49 gobies 49 fragile ecosystem 49 vegetation 49 coastlines 49 coastal wetlands 48 freshwater 48 whales dolphins 48 seagrass 48 tropical forests 48 algal blooms 48 leatherback turtles 48 alga 48 eelgrass 48 overexploitation 48 ocean acidification 47 oyster reefs 47 seaweeds 47 coastal erosion 47 plankton 47 tropical rainforests 47 bee populations 47 islands 47 monk seal 47 rainforests 47 leatherbacks 47 barrier reef 47 mangrove forest 47 zooplankton 47 ecology 47 saltwater intrusion 46 marine mammals 46 freshwater lakes 46 diatoms 46 wetland habitat 46 mangrove 46 overfishing 46 amphibians 46 insect populations 46 wetlands 46 spawning habitat 46 dugong 46 sea urchins 46 wildlife habitats 46 landforms 46 glaciers 46 Reefs