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Ecology
England
6
Fisheries
Limnology
River fisheries
6
Rivers
6
Salmo salar
6
Salmon fisheries
6
Water quality
Fishery surveys
5
Salmo trutta
5
Stocking density
5
Distribution
4
Fry
4
Lune Catchment
4
Electric fishing
3
Droughts
2
Ouse Catchment
2
Biological production
1
Distribution records
1
Population dynamics
1
Population number
1
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