Related by context. Frequent words. (Click for all words.) 63 zooplankton 63 plankton 60 gobies 59 krill 59 copepods 58 aquatic insects 58 threadfin shad 58 freshwater mussels 57 seagrasses 57 trophic 57 microscopic algae 57 planktonic 57 salmonid 57 species 57 marine invertebrates 56 Nile perch 56 round goby 56 terrestrial ecosystems 55 freshwater ecosystems 55 ocean ecosystems 55 sand eels 55 burbot 55 eelgrass 55 stickleback 55 pelagic fish 55 diatoms 55 mollusks 55 jumbo squid 55 filter feeders 55 kokanee salmon 55 freshwater 55 seagrass beds 55 aquatic ecosystem 55 alewives 55 eel grass 54 phytoplankton 54 Phytoplankton 54 invertebrates 54 biota 54 sticklebacks 54 amphibian populations 54 Daphnia 54 habitat degradation 54 Steller sea lion 54 bowfin 54 landlocked salmon 54 underwater grasses 54 Whale sharks 54 native brook trout 53 Overfishing 53 insect larvae 53 Sperm whales 53 blueback herring 53 tributary streams 53 fish 53 marine ecosystems 53 snowshoe hares 53 toothed whales 53 aquatic habitats 53 Coho salmon 53 Giant squid 53 benthic 53 rookeries 52 leatherbacks 52 freshwater fish 52 spiny dogfish 52 flatfish 52 chinook salmon 52 alga 52 deplete oxygen 52 mussel species 52 vertebrate species 52 brine shrimp 52 habitat fragmentation 52 baleen whales 52 brookies 52 aquatic ecosystems 52 bay scallops 52 sportfish 52 Humboldt squid 52 spawning salmon 52 molluscs 52 marine organisms 52 coastal estuaries 52 aquatic species 52 atmospheric methane 52 intertidal 51 aquatic organisms 51 Menhaden 51 Zebra mussels 51 snowshoe hare 51 freshwater ponds 51 apex predators 51 spawning habitat 51 kelp forests 51 crocodilians 51 tiny crustaceans 51 Chinook salmon 51 crustaceans 51 protozoan 51 forbs