The basic geohydrology of the Edwards aquifer in the Balcones fault zone is, by now, well understood and has been capably described by many authors, especially Arnow (1959), Abbott (1975), Maclay and Small (1984), and Senger and Kreitler (1984).ONCLUSIONS AND RECOMMENDATIONS. 1. There are two Edwards aquifers in Texas, one in the Edwards Plateau and the second in the Balcones fault zone area. Both are fractured, cavernous aquifers developed in carbonate rocks that were deposited in very shallow-marine shelf environments.
Pinworm infection, also known as enterobiasis, is a human parasitic disease caused by the pinworm. The most common symptom is itching in the anal area. This can make sleeping difficult. The period of time from swallowing eggs to the appearance of new eggs around the anus is 4 to 8 weeks.
Vorticella has been found as an epibiont (attached to the surface of a living substratum when in its sessile stage) of crustaceans, the basibiont. This relationship between the epibiont and basibiont is called epibiosis (Fernandez-Leborans, Zitzler and Gabilondo 2006). Rotifers have been observed to feed on Vorticella. As well, bacteria found on the bodies of Vorticella may be parasites. Description of the Organism . These solitary organisms have globulous bodies which are oval-shaped when contracted (Fernandez-Leborans, Zitzler and Gabilondo 2006). Unfavourable conditions tend to cause Vorticella to change from long and skinny to short and wide.