Earth & Environmental Sciences
relative abundance
59%
periphyton
52%
water quality
42%
cell
39%
monitoring
33%
river
31%
comparison
26%
point source pollution
15%
indicator
12%
impoundment
11%
physicochemical property
11%
urban development
10%
alga
8%
continent
8%
watershed
7%
agriculture
7%
nutrient
6%
parameter
3%
water
3%
Agriculture & Biology
water quality
63%
periphyton
56%
rivers
50%
monitoring
40%
phytoplankton
34%
cells
20%
point source pollution
20%
urban development
15%
algae
8%
physicochemical properties
8%
agriculture
7%
sampling
7%
nutrients
6%
water
4%
Business & Economics
Water Quality
100%
Stressors
62%
Monitoring
47%
Watershed
14%
Filament
14%
Nutrients
13%
Urban Development
12%
Pollution
9%
Agriculture
7%
Water
7%
Proportion
7%
United States of America
4%