Related by context. Frequent words. (Click for all words.) 60 eelgrass 58 ocean ecosystems 58 kelp 56 marine ecosystems 56 coral reefs 56 reefs 55 plankton 55 corals 55 sea urchins 54 Humboldt squid 54 ecosystems 54 habitats 54 salt marshes 53 invertebrates 53 krill 52 seamounts 52 diatoms 52 marine biodiversity 52 grasses 52 zooplankton 52 marine ecosystem 52 coral 52 reef 51 coastal ecosystems 51 leatherbacks 51 coral reef 51 vegetation 51 mangroves 51 estuarine 51 anemones 51 mammals 51 Humpback whales 51 phytoplankton 50 mosses 50 dugongs 50 otters 50 ocean 50 estuaries 50 marine organisms 50 headlands 50 shorelines 50 marine ecology 50 mangrove forests 50 forest canopy 50 salt marsh 49 species 49 redwoods 49 sea otters 49 sea creatures 49 mollusks 49 biodiversity 49 gray whales 49 aquatic ecosystems 49 mudflats 48 lichens 48 Coral reefs 48 elephant seals 48 seaweeds 48 whales 48 hydrothermal vents 48 bee populations 48 mangrove 48 oceans 48 habitat 47 aquatic vegetation 47 rookery 47 seabirds 47 boreal forests 47 estuary 47 fur seals 47 mangrove trees 47 herbivores 47 marsh 47 understory 47 aspen trees 47 seabird 47 mud flats 47 deciduous trees 46 wildlife habitats 46 vernal pools 46 conifers 46 forest ecosystems 46 carbon sinks 46 squid 46 seagrass 46 marine mammals 46 ferns 46 shorebirds 46 oaks 46 wading birds 46 dunes 46 leatherback 46 mangrove swamps 46 fauna 46 sandbars 46 horseshoe crabs 46 tropical rainforests 46 rocky shoreline 46 oyster reefs 45 freshwater lakes 45 rocky outcrops