"Abundance of Sphaerocalyptra quadridentata (WoRMS 235901) per unit volume of the water body by identification and counting by scanning electron microscopy (SEM)"@en . "Counts of a given biological entity using scanning electron microscopy normalised to a specified volume of fresh or salt water"@en . "SDN:P01::ASP07196" . "Ab_SEM_BE007196" . . . "1" . . . "2014-09-15 16:50:29.0" . . . . . . "1" . "SDN:P01::ASP07196" . "SDN:P01::ASP07196" . . "2014-09-15 16:50:29.0" . "false" . "accepted"@en .