These organisms are from the Baltimore Inner Harbor water of the Chesapeake Bay.
They were grown on 4 inch diameter plexiglass discs that were suspended in the water at a depth of 1 meter during the summer of 1997 (for more information see the companion unit Biofilm & Biodiversity). The organisms grew on the discs after approximately 3 weeks. On one disc we were able to identify 25 different species of invertebrates.
Select one of the following thumbnail images (i.e., click on it) for a better view of the organism. Use the dichotomous key to identify it. Try to identify all eight organisms.