Agriculture & Biology
macrophytes
100%
lakes
75%
climate
72%
total phosphorus
33%
frost
20%
total nitrogen
18%
nutrients
16%
ice cover
14%
fish kills
14%
limnology
14%
periphyton
12%
cold zones
11%
Uruguay
11%
coolers
10%
subtropics
9%
phytoplankton
9%
global warming
9%
tropics
8%
Brazil
5%
environmental factors
5%
duration
5%
water
3%
Earth & Environmental Sciences
macrophyte
93%
lake
53%
climate
49%
phosphorus
19%
frost
19%
nutrient
17%
fish kill
12%
climatic region
11%
subtropical region
11%
climate zone
11%
periphyton
11%
cold region
11%
nitrogen
10%
tropical region
10%
ice cover
9%
South America
8%
logistics
8%
water depth
7%
environmental factor
7%
phytoplankton
7%
North America
7%
warming
7%
ecology
7%
Europe
6%
effect
2%
Chemical Compounds
Nutrient
98%
Phosphorus(.)
76%
Ecology
40%
Nitrogen
36%
Reduction
13%