Related by context. Frequent words. (Click for all words.) 59 amphipods 59 mussel species 58 anadromous fish 57 toxic algae blooms 57 freshwater habitats 57 creeks rivers 56 aquatic invertebrates 56 humpback chub 56 anadromous 56 shortnose sturgeon 55 freshwater mussels 55 quaggas 55 deplete oxygen 55 brackish waters 55 tributary rivers 54 frogs salamanders 54 rivers 54 Wissahickon Creek 54 Algae blooms 54 Sea otters 54 estuaries 54 plankton blooms 54 freshwater marsh 54 Toxic algae 54 leatherback sea turtles 54 freshwater 54 rivers lakes 53 intertidal zone 53 headwater streams 53 aquatic organisms 53 phytoplankton blooms 53 nesting habitats 53 navigable rivers 53 waterways 53 tributary streams 53 tidal pools 53 lakes 53 refugia 52 freshwater ponds 52 yellow legged frogs 52 macroinvertebrates 52 inter tidal 52 Boat capsizes 52 dump raw sewage 52 Kemp ridley sea turtles 52 coastal estuaries 52 Beluga whales 52 Chatfield Reservoir 52 sargassum 52 coastal waters 52 mudflat 52 freshwater marshes 52 instream 52 Domoic acid 51 migrating salmon 51 submerged aquatic vegetation 51 Bolinas Lagoon 51 redds 51 marbled murrelets 51 nearshore waters 51 wintering habitat 51 Methylmercury 51 wetland ecosystem 51 eelgrass beds 51 rainbow smelt 51 harmful algae blooms 51 aquatic insects 51 migrating shorebirds 51 freshwater lakes 51 snowy plovers 51 clam beds 51 ponds 51 river catchments 51 wetland ecosystems 51 filter feeders 51 nonnative fish 51 rocky ledges 51 tidewater glaciers 51 grebes 50 salmon fry 50 caddisflies 50 harlequin ducks 50 subglacial 50 Humpback whale 50 oily pinkish brown 50 overharvest 50 Coho salmon 50 lakes ponds 50 migrating ducks 50 aquatic creatures 50 caddis flies 50 oxbows 50 Melting glaciers 50 Sediments 50 salmon steelhead 50 decaying vegetation 50 saltwater marshes 50 stinging jellyfish 50 tidepools 50 upwellings 50 intermittent streams