Role of bacteria in the nitrogen cycle in lakes
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Author
Contributions
- United States. Environmental Protection Agency. Office of Research and Monitoring. - Contributor
Publication
1972 - [U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington, District of Columbia
Language
English
Word Count
5,750 words, Guess
Page Count
23 pages
Identifiers
- Library of Congress Control Number72601945
- OCLC Control Number516990
- Open LibraryOL5390603M
Classifications
- DDC574.5/2632
- LCCQR105 .M32
Description
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.
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