Lake Superior Ecosystem
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Biotic Factors
Abiotic Factors
Food Web
Human Influence
Biotic Factors
River Otters
Beavers
Wood Frog
Loons
Bald Eagle
Brook Trout
Northern Pike
Rock Bass
Plankton
Phytoplankton -green algae
Sea Lamprey
Zebra Mussels
Cormorants
Opossum Shrimp
Native Water Fleas