Record Display for the EPA National Library Catalog

RECORD NUMBER: 12 OF 40

Main Title Preservation of Plankton Grab Samples.
Author Webe, Cornelius I. ;
CORP Author Federal Water Pollution Control Administration, Cincinnati, Ohio. Div. of Pollution Surveillance.
Year Published 1967
Stock Number PB-227 426
Additional Subjects Bactericides ; Algicides ;
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB-227 426 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 42p
Abstract
The bactericidal and algicidal properties of formalin, mercuric chloride, and Merthiolate were tested using grab river-water samples and cultures of Scenedesmus bijuga and Cyclotella meneghiniana. Formalin was bactericidal in plankton grab samples at a concentration of 1.0%. Cyclotella failed to grow in 0.01% formalin (the lowest concentration of formalin tested.) The growth of Scenedesmus was delayed briefly in 0.01% formalin, and completely arrested at a concentration of 0.1% or more of formalin.