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Subjects
- Fishing -- Great Lakes (North America)[remove]2
- Aquaculture -- Michigan.1
- Caddo Indians.1
- Coastal changes -- Great Lakes (North America)1
- Cold -- Physiological effects.1
- Drowning.1
- Fisheries -- Great Lakes (North America)1
- Indians of North America -- Michigan.1
- Sand dunes -- Great Lakes (North America)1
- Sea lamprey-Control -- Great Lakes (North America)1
- Shipping -- Great Lakes (North America)1
- Shorelines -- Great Lakes Region (North America)1
- Water -- Pollution -- Great Lakes (North America)1
- Water -- Resources -- Great Lakes (North America)1
- Wetlands ecology -- Great Lakes Region (North America)1