"Abundance of Chaetoceros (ITIS: 2758: WoRMS 148985) [Stage: resting spores] per unit volume of the experiment water sample by identification and counting by scanning electron microscopy (SEM)"@en . . "SDN:P01::ACH01015" . "Counts of a given biological entity using scanning electron microscopy normalised to a specified volume of experimental water sample."@en . .