Related by context. Frequent words. (Click for all words.) 52 brook trout 50 deer ticks 48 brown trout 48 eelgrass 48 aquatic organisms 48 zebra mussels 47 smallmouth bass 46 alewives 46 smallmouth 46 smallmouths 46 Zebra mussels 46 parasite 46 zooplankton 46 fishes 46 mayflies 46 didymo 46 fish 45 organisms 45 larvae 45 zebra mussel 45 muskies 45 snakeheads 45 striped bass 44 ospreys 44 bacteria 44 dissolved oxygen 44 sauger 44 lake trout 44 tadpoles 44 chinook salmon 44 species 44 bacterium 44 cormorants 44 mammals 44 bluegills 44 otters 44 rainbow trout 44 organism 44 freshwater 43 chinook 43 PCBs 43 lamprey 43 contaminant 43 trout 43 snakehead 43 sturgeon 42 contaminants 42 shad 42 midges 42 invertebrates 42 turkey vultures 42 larva 42 cyanobacteria 42 mosquito larvae 42 yellow perch 42 estuaries 42 inland lakes 41 migratory waterfowl 41 cutthroat trout 41 crustaceans 41 infected mosquitoes 41 migrating birds 41 crayfish 41 marsh 41 mussels 41 horseshoe crabs 41 fecal bacteria 41 snapping turtles 41 methylmercury 41 coho 41 plankton 41 sockeye 41 hatchery fish 41 weakfish 41 strontium 41 aquatic vegetation 41 toxic algae 41 bottlenose dolphins 41 lakes 40 salamanders 40 salmon 40 Cryptosporidium 40 sediment 40 bald eagles 40 steelhead 40 algae bloom 40 E. coli 40 overwintering 40 WNV 40 sediment samples 40 Hudson River 40 larval 40 Penobscot River 40 largemouths 40 microorganism 40 rockfish 40 contaminated sediment 40 pathogen 40 paddlefish 40 stripers 40 herring