Related by context. Frequent words. (Click for all words.) 57 seagrasses 56 coastland 56 reefs 56 coral reefs 55 seagrass beds 55 coastal ecosystems 54 biodiversity hotspot 54 rocky reefs 54 marine ecosystem 54 terrestrial ecosystems 54 eelgrass beds 53 inter tidal 53 freshwater ecosystems 53 marine ecosystems 53 sealife 53 ecosystems 52 coastlines 52 marine habitats 52 intertidal 52 corals 52 habitats 52 aquatic habitats 52 shorelines 52 seabeds 51 ocean ecosystems 51 hydrothermal vent 51 deltaic 51 Polar Regions 51 ecologies 51 coastal estuaries 51 plankton blooms 51 aquatic ecosystems 51 invertebrate species 51 species extinctions 51 Sea otters 50 deciduous forests 50 upwellings 50 temperate forests 50 phytoplankton blooms 50 inshore waters 50 ecologically fragile 50 marbled murrelets 50 coral 50 deplete oxygen 50 biodiversity hotspots 50 kelp forests 50 Wadden Sea 50 mud volcanoes 50 estuaries 49 fragile ecology 49 fragile ecosystems 49 biogeochemical 49 limestone formations 49 coastal marshes 49 aquatic ecosystem 49 marine invertebrates 49 seagrass 49 freshwater marshes 49 harbor porpoises 49 marine biodiversity 49 archeological sites 49 Soil erosion 49 amphibian populations 49 coral reef ecosystems 49 seamounts 49 freshwater mussels 49 marine organisms 48 archipelagos 48 wetland ecosystems 48 fauna 48 oil sheens 48 coastline 48 coral reef 48 birdlife 48 pit bulk tonnage 48 reed beds 48 wildlife habitats 48 gastropods 48 marine sanctuaries 48 reef 48 mangrove forests 48 limestone caves 48 coastal wetlands 48 Controlled burns 48 underwater volcanoes 48 eelgrass 48 wetland habitats 48 shallow reefs 48 cypress swamp 48 undersea earthquakes 48 undersea plumes 48 sandstone formations 48 Volcanic eruptions 47 ecologically sensitive areas 47 salt marshes 47 coastal 47 seashores 47 volcanically active 47 rookeries 47 Tidal waves 47 landmasses