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520500 -- Environment
1
54 Environmental Sciences
1
550100 -- Behavioral Biology
1
59 Basic Biological Sciences
Animals
1
Aquatic Ecosystems
1
Aquatic-- Basic Studies-- (-1989)
1
Aquatic-- Site Resource & Use Studies-- (-1989)
1
Arctic Ocean
1
Atlantic Ocean
1
Bering Sea
1
Birds
Continental Margin
1
Continental Shelf
1
Data
1
Data Base Management
1
Data Compilation
1
Ecosystems
1
Information
1
Management
1
Numerical Data
1
Pacific Ocean
1
Population Dynamics
1
Seas
1
Species Diversity
1
Surface Waters
1
Vertebrates 520100* -- Environment
1
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