Photo Credits
Diatoms (left: Stephanodiscus transsylvanicos Pantocsek; right: Cyclotella bodanica var. affinis (Grunow) Cleve-Euler): Matthew Julius, Center for Great Lakes and Aquatic Sciences, University of Michigan

Bathymetry/Topography Map: Great Lakes Environmental Research Laboratory, NOAA

Rinsing Plankton Net Onboard the R/V Laurentian, Lake Michigan: Center for Great Lakes and Aquatic Sciences, University of Michigan; from Visualizing the Great Lakes Image Collection, U.S. EPA, Great Lakes National Program Office