Related by context. Frequent words. (Click for all words.) 54 tailing ponds 54 aquatic ecosystem 52 Taku River 52 aquatic habitat 52 spawning beds 52 lakes 52 Coho salmon 52 native brook trout 51 headwaters 51 salmonid 51 biota 51 headwater streams 51 settling ponds 51 fish hatchery 50 aquatic invertebrates 50 silts 50 gill netting 50 fish 50 salmon spawning 50 Nile Perch 50 lake 50 aquatic habitats 50 headwater 50 Dunkard Creek 50 freshwater 49 Omo River 49 Clayoquot Sound 49 caribou herd 49 Oceans DFO 49 recreational fishery 49 aquatic organisms 49 riparian zones 49 watersheds 49 riparian vegetation 48 subsistence fishermen 48 flowage 48 sewage lagoon 48 Athabasca River 48 groundwater aquifers 48 freshwater mussels 48 riparian habitat 48 instream flow 48 kokanee salmon 48 mussel species 48 Lake Nipissing 48 Rotenone 48 waterbody 48 tributary streams 48 spawning habitat 48 migrating salmon 48 ponds 47 Samish 47 fishery 47 Berners Bay 47 nonnative fish 47 lakeshores 47 wildlife habitat 47 cypress swamp 47 beaver ponds 47 Susitna River 47 waterbodies 47 overharvest 47 bull trout 47 Paddlefish 47 watercourse 47 wetland ecosystems 47 reservoir 47 ecologically sensitive areas 47 spartina 47 Middle Fork 47 hydro electric dam 47 mudflat 47 Skeena River 47 salmon hatchery 46 dam 46 rivers 46 fisheries 46 Grande Ronde 46 Willapa 46 embayment 46 Creek tributary 46 trout stream 46 Flaming Gorge 46 Skokomish 46 salmonids 46 aquatic ecosystems 46 blackwater 46 weirs 46 Au Sable River 46 seabeds 46 geoducks 46 Cobscook Bay 46 sediment runoff 46 hydropower dam 46 salmon fishery 46 intertidal zone 46 Elwha 46 Au Sable 46 wetlands 46 burbot 46 habitat