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Limnology
Water quality
Fisheries
9
Salmo salar
9
England
8
River fisheries
8
Rivers
8
Salmo trutta
8
Ecology
7
Salmon fisheries
6
Fishery surveys
5
Stocking density
5
Distribution
4
Fry
4
Lune Catchment
4
Electric fishing
3
Migratory species
3
Droughts
2
Fishery management
2
Management
2
Ouse Catchment
2
Stream flow
2
Tracking
2
UK
2
Biological production
1
Cornwall
1
Distribution records
1
Environment
1
Fish catch statistics
1
Fish counters
1
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