Great Lakes Water Life Photo Gallery
Algae
Diatoms
Actinoptychus spp.

Profile: Specimens found in the Great Lakes are almost certainly either fossil, derived form diatomites used as filtration media, etc., or anomalous occurrences derived from accidental transport by birds or ocean-going ships. It is extremely doubtful that any members of this genus presently grow in the Great Lakes. University of Michigan, Chesapeake and Coastal Bay Life

University of Michigan

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