chaetoceros is the largest genus of marine planktonic diatoms

alga algae anatomy auxospores background biology blooms cell centric chaetoceros colonial diatom dinophyceae food heterotrophic light lipids marine micro microbiology microorganism microscope microscopic microscopy organism photosynthetic phytoplankton plankton planktonic plates protists science sea silica single sparkle spines spores under water