Excavates

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular image, a single unidentified diatomic microorganism was depicted revealing a wondrous symmetrical ultrastructural morphology.Created: 2009

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, it appears that a diatom had been fractured in the processing of this specimen. Surrounding this diatomic microorganism, was a large biofilm mass within, and around which were numerous protozoan amoeboid and bacterial microorganisms.Created: 2009

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, it appears that a diatom had been fractured in the processing of this specimen. Surrounding this diatomic microorganism, was a large biofilm mass within, and around which were numerous protozoan amoeboid and bacterial microorganisms. See PHIL 11686 for a larger view of this diatom.Created: 2009

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a microorganism is featured, the exterior of which is covered by numerous projections imparting an appearance of a sea urchin. This microscopic pin cushion was teathered to its surroundings by a biofilm within which many bacteria, and amoeboid protozoa could be seen enmeshed as well. See PHIL 11682 and 11683, for additional views of this creature under successively greater magnifications.Created: 2009

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a microorganism is featured, the exterior of which is covered by numerous projections imparting an appearance of a sea urchin. This microscopic pin cushion was teathered to its surroundings by a biofilm within which many bacteria, and amoeboid protozoa could be seen enmeshed as well. See PHIL 11682 and 11684, for additional views of this creature under successively greater magnifications.Created: 2009

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a microorganism is featured, the exterior of which is covered by numerous projections imparting an appearance of a sea urchin. This microscopic pin cushion was teathered to its surroundings by a biofilm within which many bacteria, and amoeboid protozoa could be seen enmeshed as well. See PHIL 11683 and 11684, for subsequent views of this creature under successively greater magnifications.Created: 2009

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, it appears that a diatom had been fractured in the processing of this specimen. Surrounding this diatomic microorganism, was a large biofilm mass within, and around which were numerous protozoan amoeboid and bacterial microorganisms. For a colorized version of this image see PHIL 11703.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, it appears that a diatom had been fractured in the processing of this specimen. Surrounding this diatomic microorganism, was a large biofilm mass within, and around which were numerous protozoan amoeboid and bacterial microorganisms. See PHIL 11686 for a larger view of this diatom. For a colorized version of this image see PHIL 11701.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a microorganism is featured, the exterior of which is covered by numerous projections imparting an appearance of a sea urchin. This microscopic pin cushion was teathered to its surroundings by a biofilm within which many bacteria, and amoeboid protozoa could be seen enmeshed as well. See PHIL 11682 and 11683, for additional views of this creature under successively greater magnifications. For a colorized version of this image see PHIL 11700.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a microorganism is featured, the exterior of which is covered by numerous projections imparting an appearance of a sea urchin. This microscopic pin cushion was teathered to its surroundings by a biofilm within which many bacteria, and amoeboid protozoa could be seen enmeshed as well. See PHIL 11682 and 11684, for additional views of this creature under successively greater magnifications. For a colorized version of this image see PHIL 11699.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a microorganism is featured, the exterior of which is covered by numerous projections imparting an appearance of a sea urchin. This microscopic pin cushion was teathered to its surroundings by a biofilm within which many bacteria, and amoeboid protozoa could be seen enmeshed as well. See PHIL 11683 and 11684, for subsequent views of this creature under successively greater magnifications. Also, see PHIL 11698 for a colorized version of this image.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a mass of gelatinous biofilm had enmeshed numbers of microorganisms, including amoebae and bacteria. Note at right, the stalk of what is suspected to be an algal specie. For a colorized view of this image see PHIL 11705.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a mass of gelatinous biofilm had enmeshed numbers of microorganisms, including amoebae and bacteria. See PHIL 11706 for a colorized version of this image.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view, a mass of gelatinous biofilm had enmeshed numbers of microorganisms, including amoebae and bacteria. For a colorized version of this image, see PHIL 11707.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. Here we see what appeared to be examples of diatomic, bacterial, and protozoan species, which were but a few of the inhabitants of this fresh water stream. Note also the amorphic gelatinous biofilm within which were embedded bacteria, and amoebic microorganisms. For a colorized view of this image, see PHIL 11710.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. This view captured what may have been an algal specie, which had become enmeshed in a gelatinous biofilm at left.Created: 2009

This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular image, a number of flagellated microorganisms were grouped together with other steam water particulates.Created: 2009

Magnified 6500X, this scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular image, a single unidentified diatomic microorganism was depicted revealing its wondrous symmetrical ultrastructural morphology. For a colorized version of this image see PHIL 11704.Created: 2009

This scanning electron micrograph (SEM) depicted a group of Giardia trophozoites that were clustered on the intestinal mucosal surface. Immediately adjacent to these organisms were a number of the characteristic circulars lesions that can be left on surface as a result of the tight adhesion of the organism’s ventral adhesive disk.Created: 1999

This scanning electron micrograph (SEM) revealed, a circular lesion on the mucosal microvillous surface of the intestine on the left, which was a result of the tight adhesion produced by the ventral adhesive disk of a Giardia sp. protozoan. The Giardia trophozoite responsible for the lesion on the right, is seen lying on its dorsal surface in this figure, thereby, revealing the circular ventral adhesive disk. Each small circular profile under the protozoan represents the rounded tip of a single microvillous, and it is estimated that 2000 to 3000 microvilli cover the surface of a single intestinal epithelial cell.Created: 1999

This scanning electron micrograph (SEM) revealed the presence of circulars lesions that were left on the intestinal surface, as a result of the tight adhesion produced by the ventral adhesive disk of Giardia sp. intestinal protozoa. The dorsal, or upper surfaces of several trophozoites could be seen in this figure, but the protozoan in the center of the photograph is laying upside-down, on its dorsal side, revealing an example of the ventral adhesive disk responsible for the circular lesions.Created: 1999

This scanning electron micrograph (SEM) depicted a Giardia sp. intestinal protozoan situated in an upright position on the mucosal surface of the intestine. The ventral adhesive disk, which facilitates adherence to the intestinal surface, can be seen on the underside of the organism.Created: 1999

These scanning electron micrographs (SEM) revealed the ultrastructural morphology of a Giardia protozoan’s ventral adhesive disk on the left, and the circular lesion on the right, which can be left on the intestinal mucosal surface, as a result of the tight adhesion of this disk to the intestine’s microvillous border.Created: 1999