Related by context. Frequent words. (Click for all words.) 72 quagga mussels 71 zebra mussel 68 zebra mussels 59 invasive species 54 toxic algae 54 milfoil 51 mussels 50 invasives 49 Asian Carp 49 mussel 49 mollusks 48 Asian carp 48 cyanobacteria 48 snakehead 48 hydrilla 48 algae bloom 48 emerald ash borer 48 aquatic species 47 algae 47 didymo 47 gypsy moths 46 lionfish 46 inland lakes 46 noxious weed 46 lamprey 46 steelhead trout 46 lake trout 46 freshwater 45 cormorant 45 mollusk 45 sturgeon 45 parasite 45 Emerald Ash Borer 45 jellyfish 45 silver carp 45 cormorants 45 algal blooms 45 algae blooms 45 beetle 45 delta smelt 44 sauger 44 gypsy moth 44 ballast water 44 freshwater fish 44 Delta smelt 44 barred owl 44 species 44 weevil 44 larvae 43 ash borer 43 walleye 43 amoeba 43 striped bass 43 northern pike 43 otter 43 deer ticks 43 infestations 43 microbe 43 fish 43 lakes 43 coho salmon 43 alewives 43 salmon fishery 43 snakeheads 43 chinook salmon 43 infestation 43 invasive weeds 42 insect 42 sunfish 42 worms 42 plankton 42 aphid 42 coho 42 nematode 42 antibiotic resistant 42 cutthroat trout 42 pathogen 42 kokanee 42 muskie 42 mosquito borne virus 42 carp 42 organism 42 aquatic ecosystems 42 zooplankton 42 bullfrog 42 sea urchins 42 E. coli 41 mosquito 41 West Nile virus 41 plovers 41 smallmouth bass 41 toxin 41 Africanized bees 41 bull trout 41 bluegills 41 noxious weeds 41 steelhead 41 West Nile Virus 41 mosquito populations 41 sea lice 41 weevils