Related by context. Frequent words. (Click for all words.) 52 Hydrilla 52 cordgrass 51 larvae 50 Algae blooms 49 freshwater mussels 49 Phragmites 49 fungus 49 alga 49 melaleuca 49 whitefly 48 oxalis 48 mussels 48 sea lampreys 48 Eurasian milfoil 48 seagrasses 48 periwinkles 47 protozoan 47 Invasive plants 47 whiteflies 47 mole rats 47 algal bloom 47 toxic algae bloom 47 aquatic weeds 47 Midges 47 oystercatchers 46 Sea otters 46 kelp beds 46 bollworms 46 purslane 46 parasitic worm 46 pacu 45 larval stage 45 stoneflies 45 duckweed 45 toxic algae blooms 45 Zebra mussels 45 borers 45 algae 45 hydrilla 45 mayfly 45 toxic algae 45 blueback herring 45 bollworm 45 Fruit flies 45 mealybug 45 aphids 45 Scotch broom 45 cutworms 45 barberry 45 mycobacteria 45 spider mites 45 fungal spores 45 mealybugs 45 Larvae 45 lampreys 44 anemone 44 chinch bugs 44 cattail 44 salvinia 44 Gypsy moths 44 bivalve 44 stinkbugs 44 Invasive 44 insects 44 freshwater ponds 44 defoliate 44 Emerald ash borer 44 yellowjackets 44 knotweed 44 dieback 44 Nutria 44 insect larvae 44 northern snakehead 44 seagrass beds 43 grasses 43 crayfish 43 beetle 43 Anopheles 43 vulgaris 43 spoonbills 43 aquatic invertebrates 43 guillemots 43 invasive weed 43 zooxanthellae 43 eelgrass 43 aquatic organisms 43 bagworms 43 Eurasian watermilfoil 43 Milfoil 43 giant salvinia 43 harmful algal blooms 43 caterpillars 43 Aphids 43 chickweed 43 Didymo 43 macroalgae 43 aquatic vegetation 43 dodder 43 migrating whales 43 fungi 43 widow spiders