Topic
England
Fisheries
Limnology
53
Salmo salar
43
Rivers
37
Salmo trutta
36
Ecology
32
River fisheries
31
Salmon fisheries
29
Fishery surveys
19
Stock assessment
16
Migratory species
13
Freshwater fish
12
Lune Catchment
12
Distribution
10
Management
10
Stocking density
10
Catch statistics
8
Fish populations
7
Fry
7
Water quality
7
Electric fishing
6
Fish counters
6
Juveniles
6
Population structure
6
Ribble Catchment
6
South West
6
Population dynamics
5
Stream flow
5
Wyre Catchment
5
Fish eggs
4
Fishery management
4
Fishery regulations
4
Length frequency
4
Migrations
4
Population density
4
Population number
4
Spawning
4
Abundance
3
Coarse fish
3
Conservation
3
Dissolved oxygen
3
Fish catch statistics
3
Gravel
3
Inland waters
3
River Dart
3
Survival
3
licensing
3
Angling
2
Droughts
2
more ...