The idea of producing a book on the activities of sence of bottom versus surface withdrawal all have microorganisms in reservoirs had its origins in an a bearing on microbial processes. In addition, res article published by the editor in ASM News (De ervoirs are often constructed in areas where there cember 1981, 47:527-531). Many individuals ex are few, if any, natural lakes . In this regard, reser pressed an interest in having the article expanded voirs are also often distinct from natural lakes, and into a book on this subject. Several people were that meteorologic, hydrologic, geo to the extent contacted and asked if they would be willing to logic, and edaphic factors make a difference, reser contribute chapters to the book. The interest dis voir microbiology will also be different. Finally, the played by many persons outside the area of reser creation of a new reservoir offers the sediment voir microbiology was encouraging, as was the in microbiologist a unique opportunity to view the spiration of the contributors themselves. We were transformation of terrestrial environments into subsequently approached by Dr. L. Harold Steven aquatic ecosystems.

Inhalt
I: The Reservoir in Perspective.- 1 Environmental effects of reservoirs.- 2 Characterization of the reservoir ecosystem.- II: Transition from Terrestrial to Aquatic Ecosystem.- 3 Chemistry and microbiology of newly flooded soils: relationship to reservoir-water quality.- 4 Vegetative succession and decomposition in reservoirs.- III: The Established Reservoir.- 5 Microbiological water quality of reservoirs.- 6 Interactions of reservoir microbiota: eutrophication related environmental problems.- 7 Sediment-water interactions and mineral cycling in reservoirs.- 8 Pathogenic micro-organisms in thermally altered reservoirs and other waters.- 9 Modeling geomicrobial processes in reservoirs.- 10 Microbial ecology and acidic pollution of impoundments.