Earth & Environmental Sciences
agriculture
7%
ammonium
14%
analysis
21%
basin
6%
biochemical oxygen demand
7%
bioindicator
9%
consumption
7%
diet
45%
drainage
12%
dry season
20%
environmental quality
14%
family
9%
fish
56%
fishery
9%
groundwater
10%
groundwater extraction
7%
index
12%
Index of Biotic Integrity
48%
indicator
10%
lake
46%
long-term change
18%
macroinvertebrate
17%
morphometry
20%
niche breadth
14%
niche overlap
9%
nitrate
16%
nitrogen
10%
nutrient
17%
ontogeny
19%
overexploitation
6%
partitioning
14%
piscivory
27%
prey selection
6%
river
33%
river basin
13%
river channel
6%
salinity
11%
sodicity
8%
stomach content
7%
surface water
11%
temporal analysis
21%
temporal variation
14%
trend
11%
tributary
15%
trophic interaction
21%
volume change
19%
water
6%
water level
14%
water quality
26%
zooplankton
8%
Agriculture & Biology
ammonium
16%
aquatic ecosystems
5%
aquatic invertebrates
22%
Atherinopsidae
34%
Baetidae
6%
basins
7%
biochemical oxygen demand
5%
biomass
5%
Chirostoma
100%
Copepoda
19%
Diaphanosoma
9%
diet
25%
diet study techniques
6%
discriminant analysis
5%
dry season
16%
ecological differentiation
13%
environmental health
5%
environmental quality
5%
fins
5%
fish
39%
fish communities
19%
fish consumption
8%
fisheries
16%
Gammaridae
7%
gills
5%
Hemiptera
5%
human settlements
6%
indicator species
13%
indigenous species
7%
lakes
65%
Mexico
28%
monitoring
5%
morphometry
19%
niches
15%
nitrates
14%
nitrogen
10%
nutrients
12%
ontogeny
16%
piscivores
24%
predation
9%
prey species
6%
rivers
27%
surface water level
20%
temporal variation
18%
trophic relationships
21%
water
6%
water quality
24%
zooplankton
18%