a variety of diatoms--a major component of plankton, 100x - diatom stock pictures, royalty-free photos & images
diatoms; navicula, 250x at 35mm. phylum bacillariophyta (diatoms). unicellar. shell contains silica. - diatom stock pictures, royalty-free photos & images
scanning electron micrograph showing a diatom found in an untreated water specimen extracted from a wild stream. magnification 6500x - diatom stock pictures, royalty-free photos & images
mediterranean marine plankton including dinoflagellate and diatom species. magnified 600x - diatom stock pictures, royalty-free photos & images