Great Duckweed
Spirodela polyrhiza
Size: to 0.1"
Habitat: floating free at surface
Notes: Among the smallest seed plants; important food for many waterfowl.
Lota lota
Size
to 15" avg.,
sometimes much larger
The Burbot is the only freshwater representative of the Cod family. Although native to the Great Lakes, and Midwest, they have been widely introduced for fishermen. Adults prefer deep cold water but spawn under ice in the shallows.
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