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HEAVY METALS CONCENTRATION
environment
39
oceans
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CONTAMINANT LEVELS/SPILLS
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ENVIRONMENTAL IMPACTS
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BENTHIC
31
CONTINENT >
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EARTH SCIENCE
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EARTH SCIENCE >
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GEOGRAPHIC REGION >
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HUMAN DIMENSIONS
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POLAR
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BIOSPHERE >
30
COASTAL
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ECOSYSTEMS >
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MARINE ECOSYSTEMS >
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ANIMALS/INVERTEBRATES
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ANTARCTICA >
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CRUSTACEANS
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ECHINODERMS
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MARINE OBSTRUCTIONS
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MOLLUSKS
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SEGMENTED WORMS (ANNELIDS)
29
SEWAGE DISPOSAL
29
biota
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transportation
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MARINE ENVIRONMENT MONITORING
25
BIOSPHERE
24
ECOLOGICAL DYNAMICS
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FIELD SURVEYS
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