Topics
Research
Fishes
61
Dams
26
Hydroelectric power plants
23
Effect of dams on
22
Environmental aspects
22
Freshwater habitats
18
Anadromous fishes
15
Aquatic habitats
13
Habitat
13
Fish populations
11
Effect of habitat modification on
8
Methodology
8
Benthic animals
7
Biotic communities
7
Chinook salmon
7
Food
7
Food chains (Ecology)
7
Freshwater animals
7
Freshwater productivity
7
Migration
7
Productivity
7
Stream invertebrates
7
White whale
7
Genetics
6
Counting
5
Economic aspects
4
Fish communities
4
Fishing
4
Power utilization
4
Stream ecology
4
Stream mapping
4
Animals
3
Fish tagging
3
Reservoirs
3
Technique
3
Aquatic resources
2
Contracts
2
Fish surveys
2
Fishery management
2
Fishery resources
2
Hydrology
2
Instream flow
2
Monitoring
2
Pacific salmon
2
Subsistence fishing
2
Subsistence hunting
2
Zoological surveys
2
Appropriations and expenditures
1
Bioaccumulation
1
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