ON ECOLOGY OF 2 WELLS SITUATED IN INTENSIVELY EXPLOITED AGRICULTURAL AREA

Physical-chemical and selected biological characteristics were studied in two field wells situated close to each other, which differ in the forms of exploitation of their surrounding areas (field, pasture). Obt ained data fall within a variation breadth as specified for this regio n. The structure of studied organisms is influenced not only by geolog ical conditions, but also by technical characteristics and the ways of exploitation of immediately neighbouring land. Based on examined char acteristics it may be concluded that water in the wells in question is of surface water type. We found 41 taxa of zooplankton, but only 12 t axa of zoobenthos mostly belonging to eurybiont species, with the exce ption of the trogophile species of Niphargus jovanovici, indicating sp ecific subsurface conditions.