Fig. 5From: A simple method for taxon-specific purification of diatom frustules from ocean sediments using a cell sorterFlow cytograms of sample 382-U1538A-1-2, 24–25 cm (Holocene) and pie charts/photomicrographs showing the diatom assemblages obtained by sorting of the following composite regions: Regions 1 and 5 (discoid-diatom-rich); Regions 2 and 6 (Fragilariopsis-rich); Regions 3 and 8 (Rhizosolenia-rich); and Regions 2 and 7 (Thalassiothrix-rich). The crystalline materials in the micrographs are NaCl crystals in the sheath fluidBack to article page