||Effects of Heated Waste Waters Upon Microbial Communities.
Cairns, Jr, John ;
Paterso, Robert A. ;
||Virginia Polytechnic Inst. and State Univ., Blacksburg. Water Resources Research Center.
||DI-14-31-0001-3137; OWRR-B-017-VA; 07526,; B-017-VA(7)
( Water pollution ;
( Aquatic microbiology ;
Cooling water ;
Thermal pollution ;
Water pollution effects(Plants)
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The effects of thermal stress on selected aquatic microorganisms were investigated. Numerous categories of temperature shock were studied with emphasis on simulation of the passage of water through a condensing system to determine the effects of this exposure, and the effects of such entrainment upon the microbial system below the discharge point. Three general groups of organisms were examined: protozoans, algae, and chytridiaceous fungi. New equipment developed specifically to aid in these studies (a simple apparatus for delivering heat shock to microorganisms) and a new fluorescent survey technique to characterize stress induced cellular alterations are described in detail. (Author)