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England
3
Fisheries
3
Limnology
3
Salmo salar
3
Salmo trutta
3
Salmon fisheries
3
Distribution
2
Ecology
2
Fishery surveys
2
Length frequency
2
Population number
2
River fisheries
2
Rivers
2
Stock assessment
2
Wyre Catchment
2
Abundance
1
Aquatic Science
1
Long-term changes
1
Ribble Catchment
1
Stocking density
1
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