||Distribution of Protozoa in Subsurface Sediments of a Pristine Groundwater Study Site in Oklahoma (Journal Version).
Sinclair, J. L. ;
Ghiorse, W. C. ;
||Cornell Univ., Ithaca, NY. Dept. of Microbiology.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Subsurface investigations ;
Ground water ;
Clay soils ;
Water table ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Most-probable-number counting methods were applied to determine the distribution of protozoa in a depth profile at a groundwater microbiology study site near Lula, Oklahoma in January and June, 1985. Aseptic procedures were used to ensure minimal airborne contamination samples. Numbers of protozoa declined with depth, but amoebae or flagellates were present in all samples down to an interface zone just below the water table. Deeper in the profile, only samples from one layer of the saturated zone contained protozoa. The results emphasize the biological variability of deeper subsurface layers.