Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effects of Nitrogen Sources on P-Limited Growth of 'Anabaena Flos-Aquae'.
Author Rhee, G. Y. ; Lederman, T. C. ;
CORP Author New York State Dept. of Health, Albany.;Environmental Research Lab.-Duluth, MN.
Year Published 1983
Report Number EPA-R-806820; EPA/600/J-83/251;
Stock Number PB85-103166
Additional Subjects Algae ; Nitrogen fixation ; Lakes ; Growth ; Inorganic nitrates ; Ammonia ; Nitrogen ; Requirements ; Phosphorus ; Nitrogen inorganic compounds ; Reprints ; Anabaena ; Carbon fixation
Library Call Number Additional Info Location Last
NTIS  PB85-103166 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 10p
Dominance of N2-fixing algae has frequently been observed in freshwater environments in late spring or summer when the ratio of available N and P is low. This dominance is apparently due largely to the unique ability of the algae to fix atmospheric N2 while the limitation of combined N restricts the growth of non-N2-fixing species. As the ratio of available N to P decreases, P limitation changes to N limitation for the nonfixers, but for N2-fixing species N-fixation takes over as the primary source of N. In the present study the authors investigated how P requirements, C-fixation and growth kinetics of N2-fixing blue-green algae are affected by various inorganic N species.