Related by context. Frequent words. (Click for all words.) 51 Soil erosion 50 overharvested 48 toxic algae blooms 48 lakeshores 48 soil salinity 48 freshwater ecosystems 48 aquatic ecosystems 47 salination 47 Stormwater runoff 46 riparian zones 46 nutrient loading 46 Urban sprawl 46 Everglades ecosystem 46 riparian vegetation 46 aquatic ecosystem 45 aquatic vegetation 45 Algae blooms 45 phytoplankton blooms 45 denudation 45 ecological 44 recharge groundwater 44 Rapid urbanization 44 freshwater 44 endangered pallid sturgeon 44 shoaling 44 population densities 44 hydrologic cycle 44 gully erosion 44 intertidal zone 43 eutrophication 43 Invasive species 43 capercaillie 43 aquatic habitats 43 waterways 43 aquatic habitat 43 ecologic 43 hydrological cycle 43 overharvest 43 bioaccumulation 43 aquatic invertebrates 42 biota 42 deplete oxygen 42 eel grass 42 sediment runoff 42 coastal estuaries 42 patchiness 42 nutrient runoff 42 threatened delta smelt 42 deleterious consequences 42 cordgrass 42 freshwaters 42 Invasive plants 42 inland bays 42 intensively farmed 42 irrigated lands 42 wildlife habitat 42 aquatic organisms 42 upwellings 42 aquatic weeds 42 foraging habitat 41 aquatic species 41 native brook trout 41 inter tidal 41 shoreline erosion 41 deer overpopulation 41 potent neurotoxin 41 saturated soils 41 silts 41 estuary 41 wetland 41 wetter winters 41 nonpoint source pollution 41 pesticides fertilizers 41 depleting oxygen 41 harmful algae blooms 41 Empirical evidence 41 beaches wildlife refuges 41 salinity 41 waterbodies 41 woody vegetation 41 ecology 41 Sedimentation 41 effluence 41 rampant deforestation 41 scanty rainfall 40 oxbows 40 periodic droughts 40 seagrasses 40 drier summers 40 salmonids 40 wetlands 40 ecosystems 40 siltation 40 salmonid 40 glacial melt 40 ecological degradation 40 upland habitat 40 groundwater aquifers 40 eelgrass 40 waterbirds 40 waterfowl habitat