Agriculture & Biology
ammonia monooxygenase
100%
Chesapeake Bay
86%
sediments
57%
ammonia
31%
nitrification
29%
estuaries
25%
Choptank River
24%
genes
21%
phylogeny
21%
bacteria
20%
Nitrosospira
20%
salinity
19%
Nitrosomonas
19%
clones
17%
pollution load
16%
marine environment
14%
functional diversity
14%
ecological function
14%
ammonium nitrate
14%
trophic levels
14%
Proteobacteria
13%
organic carbon
13%
rivers
9%
oxygen
8%
environmental factors
7%
genetic variation
7%
DNA
6%
enzymes
5%
Earth & Environmental Sciences
environmental gradient
71%
ammonia
49%
gene
47%
sediment
29%
station
22%
phylogenetics
19%
clone
16%
bacterium
14%
nitrification
14%
estuary
12%
salinity
10%
genetic variation
9%
estuarine environment
9%
ammonium nitrate
8%
ecosystem function
8%
trophic level
7%
chemical
7%
river
7%
sediment core
7%
natural environment
7%
marine environment
6%
environmental factor
6%
DNA
6%
enzyme
6%
North America
6%
organic carbon
6%
nutrient
5%
oxygen
5%
sea
4%
analysis
4%
index
3%
parameter
2%