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Ecology
5
England
5
Fisheries
Fishery surveys
Limnology
5
River fisheries
5
Rivers
5
Salmo salar
5
Salmo trutta
5
Salmon fisheries
Water quality
Distribution
4
Stocking density
4
Fry
3
Lune Catchment
3
Droughts
2
Electric fishing
2
Ouse Catchment
2
Biological production
1
Distribution records
1
Population dynamics
1
Population number
1
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