Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title The nutrition of Great Lakes Cladophora /
Author Gerloff, Gerald C. ; Fitzgerald, George P.
Other Authors
Author Title of a Work
Fitzgerald, George Patrick,
CORP Author Wisconsin Univ., Madison. Dept. of Botany.;Environmental Research Lab., Duluth, Minn.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory ; Available through the National Technical Information Service,
Year Published 1976
Report Number EPA-600/3-76-044; EPA-R-802464
Stock Number PB-253 343
OCLC Number 02364073
Subjects Cladophora.
Additional Subjects Chlorophyta ; Bioassay ; Plant nutrition ; Great Lakes ; Nutrients ; Concentration(Composition) ; Inorganic phosphates ; Inorganic nitrates ; Culture media ; Growth ; Sewage ; Sampling ; Water pollution ; Algae ; Cladophora glomerata
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-3-76-044 Headquarters Library/Washington,DC 03/17/2009
EJBD  EPA 600-3-76-044 Headquarters Library/Washington,DC 08/02/2013
ELAD  EPA 600-3-76-044 Region 5 Library/Chicago,IL 05/16/2016
ELBD  EPA 600-3-76-044 AWBERC Library/Cincinnati,OH 04/10/1998
ELDD  EPA-600/3-76-044 2 copies CCTE/GLTED Library/Duluth,MN 08/09/2002
ESAD  EPA 600-3-76-044 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-253 343 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation xi, 111 pages : illustrations, maps ; 28 cm.
A synthetic culture medium was developed for the laboratory culture of Cladophora glomerata from the Great Lakes. Recognition that Cladophora requires vitamins B1 and B12 was a key feature in the successful culture of this alga. Systematic modifications of the initial culture solution resulted in an optimum culture medium in which C. glomerata routinely produced 500 mg oven-dry algae in a 21-day period. The quantitative requirements of C. glomerata for essential inorganic nutrients were expressed primarily as critical cell concentrations, that is minimum cell concentrations which permit maximum yield. C. glomerata has relatively low critical N and P concentrations (1.1% and 0.06%, respectively) but very high B (110 ppm) and S (0.15%) critical concentrations. Ortho- , pyro-, meta, and tripoly-P can be utilized in C. glomerata growth as can NH4 and NO3-N. Phosphite-P is relatively unavailable. Nutrient supplies and limiting nutrients for Cladophora sp. growth in the Great Lakes were evaluated by two bioassays, primarily plant analysis and to some extent the Fitzgerald tests. Plant analysis assays for P showed that Cladophora P concentrations correlated closely with the recognized pollution of areas sampled.
"EPA-600/3-76-044." "Grant no. R-802464." Includes bibliographical references (pages 108-110).