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Fisheries
18
fishing techniques
Engineering
8
selectivity
5
experimental fishing
4
Gadus morhua
3
North Sea
3
catch effort
3
cod fishery
3
set net
3
turbot
3
Biology
2
bottom trawl
2
bycatch
2
cod
2
cruise report
2
echolocation
2
exploratory fishery
2
fishing gear
2
fishing gears
2
fishing methods
2
international cooperation
2
mesh size
2
net construction
2
trawl net
2
twines
2
1977
1
Antarctic expedition
1
Antarctic fisheries
1
Baltic Sea
1
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