Related by context. Frequent words. (Click for all words.) 65 coral reefs 63 marine ecosystems 62 marine ecosystem 60 habitats 60 reefs 59 estuaries 57 ecosystems 56 coral reef 56 wildlife habitats 53 biodiversity 52 marine organisms 52 shorelines 51 coastal wetlands 51 marine 51 reef 51 corals 51 wetlands 50 aquatic species 50 oceans 50 habitat 50 wildlife habitat 50 fragile ecosystem 49 marine mammals 49 salt marshes 49 sea turtles 49 ecology 49 estuary 49 coastal waters 49 fisheries 49 freshwater 48 coral bleaching 48 ocean 48 coastlines 48 coral 48 ocean acidification 48 shoreline 47 biosphere 47 mangrove forests 47 seagrass 47 bio diversity 47 sea creatures 47 coastline 46 mangroves 46 artificial reefs 46 species 46 shorebirds 46 wildlife 45 waterways 45 barrier islands 45 salt marsh 45 mangrove forest 45 bottom trawling 45 fauna 45 marsh 45 seabirds 44 beaches 44 flora 44 archaeological sites 44 manatees 44 polar regions 44 shipwrecks 44 marine mammal 43 watersheds 43 Great Barrier Reef 43 overfishing 43 wetland 43 algal blooms 43 ecosystem 43 Barnegat Bay 43 bird species 43 ecological 43 wading birds 42 archeological sites 42 seabird 42 oceanographic 42 habitat restoration 42 oyster beds 42 invertebrates 42 River Lagoon 42 mammals 42 marine biology 42 amphibians 42 organisms 42 overfished 42 fishery 42 pristine beaches 41 sandbars 41 recreational boating 41 plankton 41 oceanography 41 cetaceans 41 waterfronts 41 wildlife refuges 41 coastal erosion 41 ecotourism 41 mud flats 41 ecologically 40 islands 40 coastal 40 oceanic 40 sandy beaches