Record Display for the EPA National Library Catalog

RECORD NUMBER: 83 OF 201

OLS Field Name OLS Field Data
Main Title Lake Superior periphyton in relation to water quality /
Author Olson, Theodore A.
Other Authors
Author Title of a Work
Odlaug, Theron O.
Publisher U.S. Government Printing Office,
Year Published 1972
Report Number W7212192; EPA 18050-DBM-02-72
OCLC Number 00509107
Subjects Periphyton--Superior, Lake. ; Freshwater algae--Superior, Lake. ; Primary productivity (Biology)--Superior, Lake. ; Lake Superior.
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101SDLO.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 18050-DBM-02-72 Headquarters Library/Washington,DC 01/12/2015
EJBD  EPA 18050-DBM-02-72 Headquarters Library/Washington,DC 10/18/2018
ELBD RPS EPA 18050-DBM-02-72 repository copy AWBERC Library/Cincinnati,OH 06/26/2018
ELDM  QK571.O47 2 copies CCTE/GLTED Library/Duluth,MN 03/28/2008
Collation xxi, 253 pages : illustrations ; 28 cm.
Notes
"EPA 18050-DBM-02-72." "February, 1972." Cover title. Includes bibliographical references (pages 233-246).
Contents Notes
Laboratory and field studies were conducted to evaluate the importance of periphyton in western Lake Superior with special reference to the make-up and distribution of the periphyton growths and to the overall importance of productive capacity of this assemblage of organisms. The taxonomic portion of the investigation indicated that over 90% of the total number of organisms were diatoms and that the phyla to which these diatoms belonged were the Chrysophyta, the Chlorophyta, and the Cyanophyta. Predominant genera were Synedra, Achnanthes, Navicula, Cymbella, and Gomphonema. In many respects, the periphyton of Lake Superior was similar to that found in streams and there was evidence that the interrelated factors that affected periphyton growths were temperature, light intensity, depth of water, water movements, nutrient levels, and the type of substrate.