[Bacterial overgrowth of slides and electron microscopic grids in the surface film of water and ooze deposits].
Distinct bacterial growth can be discerned in the surface water film on semisubmerged slides in the laboratory conditions. The thickness of growth depends on the content of organic substances in water. The growth is found also in natural brine if the content of salts is 127--230 g per litre. A great variety of aqueous bacteria is seen, by means of electron microscopy, on electron-microscopic nets submerged in the surface water layer. New bacterial forms have been found in natural brine. Many creeping bacteria cover slides at the water-ooze interface.