Topic
Fisheries
Limnology
71
England
49
Salmo salar
49
Ecology
45
Salmo trutta
41
Rivers
37
River fisheries
34
Salmon fisheries
32
Fishery surveys
19
Stock assessment
17
Migratory species
16
Freshwater fish
15
Management
14
Lune Catchment
12
Distribution
10
Stocking density
10
Water quality
9
Catch statistics
8
Fish counters
8
Stream flow
8
Fry
7
UK
7
Electric fishing
6
Fish populations
6
Fishery management
6
Juveniles
6
Migrations
6
Population structure
6
Ribble Catchment
6
South West
6
Tracking
6
Population dynamics
5
Wyre Catchment
5
Conservation
4
Dissolved oxygen
4
Fish catch statistics
4
Fish eggs
4
Population number
4
Tagging
4
Coarse fish
3
Fishery regulations
3
Fishways
3
Gravel
3
Population density
3
River Dart
3
Spawning
3
Spawning populations
3
Survival
3
licensing
3
more ...