Great Lakes Water Life Photo Gallery
Algae
Diatoms
Hannaea arcus

Hannaea arcus

Profile: Typically found in springs and streams, prefers cool, flowing water. 15x4 to 150x7 um. University of Michigan,
California Academy of Sciences

2 Great Lakes Species (including named varieties): H. arcus, H. arcus var. amphioxys, H. arcus var. linearis

Hannaea superiorensis - discovered 2005 by Rebecca Bixby of the University of Georgia, Mark Edlund of the Science Museum of Minnesota and Eugene Stoermer from the University of Michigan. Described in the November 2005 issue of Diatom Research. Boomerang-shaped and twice the length of H. arcus.

Great Lakes Diatom Home Page - University of Michigan

Additional Photos:
Rocky Mountain National Park
California Academy of Sciences

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