Topic
Fisheries
Salmon fisheries
Limnology
32
Salmo salar
31
England
29
Salmo trutta
26
River fisheries
24
Rivers
24
Ecology
20
Fishery surveys
19
Stock assessment
12
Lune Catchment
10
Distribution
9
Stocking density
9
Migratory species
7
Management
6
Population structure
6
South West
6
Water quality
6
Fish populations
5
Freshwater fish
5
Fry
5
Population dynamics
5
Catch statistics
4
Population number
4
Wyre Catchment
4
Electric fishing
3
Fish counters
3
Juveniles
3
Migrations
3
Ribble Catchment
3
River Dart
3
Spawning
3
Stream flow
3
Abundance
2
Alaska
2
Angling
2
Conservation
2
Droughts
2
Fish catch statistics
2
Fishery regulations
2
Length frequency
2
Ouse Catchment
2
Population density
2
River Teign
2
Scales
2
Spawning grounds
2
Spawning populations
2
Tagging
2
UK
2
more ...