Topic
Fisheries
Limnology
49
Salmo salar
England
43
Salmo trutta
41
Rivers
34
Ecology
32
River fisheries
31
Salmon fisheries
31
Fishery surveys
19
Stock assessment
17
Lune Catchment
12
Migratory species
12
Distribution
9
Freshwater fish
9
Stocking density
9
Catch statistics
8
Fish counters
8
Stream flow
8
Water quality
8
Electric fishing
6
Fry
6
Management
6
Migrations
6
Ribble Catchment
6
Tracking
6
Juveniles
5
Population structure
5
South West
5
UK
5
Wyre Catchment
5
Fish populations
4
Fishery management
4
Population dynamics
4
Population number
4
Tagging
4
Coarse fish
3
Conservation
3
Dissolved oxygen
3
River Dart
3
Spawning
3
licensing
3
Abundance
2
Angling
2
Droughts
2
Environmental Monitoring
2
Estuaries
2
Fish catch statistics
2
Fish eggs
2
Fisheries management
2
more ...