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Arctic Ocean
2
Chukchi Sea
2
East Siberian Sea
1
General. Including nature conservation
1
Hydraulic engineering
1
Q
1
QH1-199.5
1
Science
1
TC1-978
1
TD201-500
1
Water supply for domestic and industrial purposes
1
biochemical composition
1
geographical distribution
1
particulate organic matter
1
phytoplankton
1
phytoplankton biomass
1
phytoplankton size structure
1
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