Related by context. Frequent words. (Click for all words.) 68 Asian carp 60 Asian Carp 57 carp 55 zebra mussels 55 Chicago Sanitary 54 silver carp 53 invasive species 53 Zebra mussels 53 lampreys 53 zebra mussel 52 waterways 51 Chinook salmon 50 steelhead trout 50 Ship Canal 49 alewives 49 lamprey 48 mussels 48 muskellunge 48 lake trout 48 smallmouth bass 48 sturgeon 48 Invasive species 47 contaminated sediment 47 aquatic organisms 47 spawning habitat 47 paddlefish 47 quagga mussels 47 spawning grounds 47 steelhead 47 alewife 47 aquatic invasive species 46 hatchery fish 46 invasives 46 Great Lakes basin 46 sea lamprey 46 toxic algae 46 muskies 46 mollusks 46 gizzard shad 46 yellow perch 46 inland lakes 45 waterway 45 chinook salmon 45 endangered salmon 45 fish 45 inland waters 45 mute swans 45 ash borer 45 salmon 45 fisheries biologists 45 aquatic insects 44 muskie 44 contaminants 44 walleye 44 didymo 44 gamefish 44 ocean ecosystems 44 sauger 44 snakeheads 44 aquatic species 44 migratory fish 44 invasive weed 43 lakes 43 zooplankton 43 brown trout 43 Great Lakes 43 contaminating 43 rainbow trout 43 northern pike 43 crayfish 43 grayling 43 cormorants 43 sediment 43 wild salmon 43 snakehead 43 flathead catfish 43 tributaries 43 otters 42 species 42 coho salmon 42 freshwater 42 migratory waterfowl 42 migratory birds 42 plankton 42 brook trout 42 critters 42 rotenone 42 nonnative species 42 coho 42 Delta smelt 41 striped bass 41 aquatic ecosystems 41 trout 41 freshwater fish 41 emerald ash borer 41 chronic wasting 41 catfish 41 rivers 41 feral pigs 41 smallmouth 41 salmon fishery