Earth & Environmental Sciences
ocean
100%
remineralization
77%
carbon
59%
nitrate
46%
primary production
44%
iron
42%
water column
41%
isotopic composition
40%
barium
37%
sea ice
37%
estuary
35%
polar front
34%
fixation
34%
twilight
33%
nitrogen
32%
biogeochemistry
32%
bivalve
31%
shell
31%
algal bloom
31%
particulate organic carbon
31%
nutrient
31%
phytoplankton
29%
isotope
29%
ammonium
29%
stable isotope
28%
transect
27%
gyre
26%
plateau
25%
nitrification
23%
ice
23%
summer
23%
mangrove
21%
dissolved inorganic carbon
20%
station
20%
organic carbon
20%
mixed layer
20%
water
20%
nitrogen fixation
20%
water mass
18%
assimilation
16%
organic matter
16%
particle
16%
suspended matter
16%
sea
15%
distribution
15%
surface water
15%
biomass
15%
productivity
15%
salinity
15%
rate
15%
Agriculture & Biology
oceans
49%
particulate organic carbon
32%
carbon
25%
Kenya
23%
stable isotopes
21%
iron
20%
particulates
18%
sediments
17%
isotopes
17%
estuaries
16%
plateaus
15%
mangroves (trees)
13%
ocean acidification
12%
primary productivity
12%
Atlantic Ocean
12%
phytoplankton
12%
Bacillariophyceae
10%
nitrates
10%
water
10%
nitrogen
9%
nutrients
9%
inorganic carbon
9%
carbon isotopes
9%
biogeochemistry
9%
Bivalvia
9%
rivers
8%
summer
8%
sea ice
8%
nitrification
8%
surface water
8%
basins
8%
ammonium
8%
trace elements
7%
tracer techniques
7%
Pomatoschistus minutus
7%
Rhizophora mucronata
7%
nitrogen fixation
7%
freshwater marshes
7%
shell (molluscs)
6%
seawater
6%
Echinoidea
6%
dissolved inorganic carbon
6%
Lake Victoria
6%
plankton
6%
zooplankton
6%
Posidonia oceanica
6%
assimilation (physiology)
6%
organic carbon
6%
uptake mechanisms
6%
methane
6%
