Related by context. Frequent words. (Click for all words.) 76 marine ecosystems 73 ecosystems 71 marine ecosystem 69 coral reefs 66 reefs 64 estuaries 62 biodiversity 62 habitats 61 coastal wetlands 60 wildlife habitats 59 mangroves 59 mangrove forests 59 ecology 58 ecological 58 shorelines 57 corals 57 fragile ecosystem 57 wetlands 56 coral reef 56 habitat 56 ocean acidification 56 salt marshes 55 ecosystem 55 seagrass 55 aquatic species 55 watersheds 54 coral 54 oceans 54 fisheries 52 biosphere 52 coastlines 52 estuary 51 coastal erosion 51 freshwater 51 wildlife habitat 51 species 51 plankton 51 marine organisms 50 reef 50 waterways 50 fauna 50 bio diversity 50 rainforests 50 ecologically 50 tropical forests 50 oyster beds 49 mangrove 49 livelihoods 49 salt marsh 49 tropical rainforests 49 overfishing 49 invasive species 48 coastal 48 acidification 48 marshes 48 habitat restoration 48 invertebrates 48 coral bleaching 47 shellfish 47 phytoplankton 47 marsh 47 Biodiversity 46 sea creatures 46 Wetlands 46 environmental degradation 46 climate change 46 marine mammals 46 biodiversity conservation 46 wetland 46 salinity 46 Ecosystems 46 forests 46 aquaculture 46 ocean 46 ocean currents 46 shoreline 46 flora 46 mollusks 45 sea urchins 45 sea turtles 45 seabirds 45 fishery 45 algal blooms 45 coastal waters 45 barrier islands 45 marine 45 carbon sinks 45 wildlife 45 soil fertility 45 ecotourism 45 oysters 45 nesting birds 44 sediments 44 coastline 44 shorebirds 44 aquatic 44 soils 44 glaciers 44 zooplankton 44 Ecosystem 44 algae blooms