Record Display for the EPA National Library Catalog


Main Title Role of bacteria in the nitrogen cycle in lakes /
Author McCoy, Elizabeth, ; McCoy, Elizabeth F.,
CORP Author United States. Environmental Protection Agency. Office of Research and Monitoring.
Publisher United States Environmental Protection Agency, Office of Research and Monitoring,
Year Published 1972
Report Number EPA16010-EHR-03/72; W7212956; EPA 620-R-72-016
OCLC Number 00516990
Subjects Denitrifying bacteria ; Eutrophication ; Nitrites--Physiological effect ; Fishes--Diseases
Additional Subjects Bacteria, Denitrifying ; Bacteria, Nitrifying ; Eutrophication ; Nitrites--Physiological effect ; Fishes--Diseases and pests
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 620-R-72-016 Headquarters Library/Washington,DC 01/06/2014
EKCM  QR105.M32 CEMM/GEMMD Library/Gulf Breeze,FL 01/01/1988
ELBD ARCHIVE EPA 620-R-72-016 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA 620-R-72-016 repository copy AWBERC Library/Cincinnati,OH 10/18/2016
ELBD  EPA 620-R-72-016 AWBERC Library/Cincinnati,OH 04/11/2023
Collation vii, 23 pages : illustrations, figures, tables ; 28 cm.
"March 1972." "Research conducted at the University Wisconsin-Madison, Department of Bacteriology." Includes bibliographical references (page 23).
Contents Notes
Biological nitrification as contributing nitrite and nitrate to lakes and streams was explored by determining: nitrifiers, growth sites and activity; denitrifying bacteria numbers and their potential activity as opposing nitrification; field data on nitrite-nitrogen and nitrate-nitrogen in terms of nitrifier and denitrifier populations. Biological nitrification, both heterotrophic and autotrophic, was demonstrated. Even though opposing processes, nitrification and denitrification can coexist in close succession or in adjoining microhabitats. Field values for nitrate-nitrogen and nitrite-nitrogen vary considerably and must be viewed as net values at any given time. Thirteen species of fishes varied greatly in resistance to nitrite-nitrogen. Nitrite toxicity may influence fish species dominance in a eutrophic lake.