Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 10

OLS Field Name OLS Field Data
Main Title A Flow-through testing procedure with duckweed (Lemna minor L.) /
Author Walbridge, Charles T.
CORP Author Environmental Research Lab.-Duluth, Minn.
Publisher Environmental Research Laboratory--Duluth,
Year Published 1977
Report Number EPA; EPA 600/3-77-108
Stock Number PB-272 586
OCLC Number 28372599
Subjects Duckweeds. ; Lemnaceae
Additional Subjects Aquatic weeds ; Water pollution ; Water quality ; Indicator species ; Bioassay ; Toxicity ; Nutrition ; Growth ; Plant physiology ; Mortality ; Ecology ; Aquatic plants ; Lemna minor ; Duckweed ; Bioindicators ; Laboratory experiments
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101B3Q9.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 600/3-77-108 Region 3 Library/Philadelphia, PA 10/25/1996
EJBD ARCHIVE EPA 600-3-77-108 Headquarters Library/Washington,DC 09/12/2011
EJBD  EPA 600-3-77-108 c.1 Headquarters Library/Washington,DC 01/29/2014
EKAM  EPA 600/3-77-108 Region 4 Library/Atlanta,GA 05/13/1994
ELDD  EPA-600/3-77-108 3 copies NHEERL/MED Library/Duluth,MN 10/25/2002
ESAD  EPA 600-3-77-108 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-272 586 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation vi, 20 pages : illustrations ; 28 cm
Abstract
Lemna minor is one of the smallest flowering plants. Because of its floating habit, ease of culture, and small size it is well adapted for laboratory investigations. Procedures for flow-through tests were developed. Testing procedures were developed with this apparatus. By using the techniques described here, the effects of nutrients or toxicants, singly or in combination, can be determined in several concentrations with several replicates of each. Responses which can be measured include changes in growth rate, changes in death rate, changes in timing of division of colonies, color changes, changes in variability, and modification of the flowering response. Emphasis here is on changes in growth rate determined either by daily frond counts or by final frond numbers.
Notes
"EPA-600/3-77-108." "September 1977." Includes bibliographical references (pages 17-19).