Main Title |
Bioassays to Determine Algal Growth Potential of Micronutrients. |
Author |
Fun, William H. ;
Condi, Richard J. ;
Crane, Wayne T. ;
|
CORP Author |
Washington State Water Research Center, Pullman. |
Year Published |
1971 |
Report Number |
DI-14-31-0001-3248; OWRR-A-033-WASH; 00801,; A-033-WASH(1) |
Stock Number |
PB-204 232 |
Additional Subjects |
( Algae ;
Nutrients) ;
( Water pollution ;
Nutrients) ;
( Fresh water biology ;
Algae) ;
( Molybdenum ;
Trace elements) ;
Lakes ;
Metabolism ;
Neutron activation analysis ;
Iron ;
Aquatic microbiology ;
Contaminants ;
Bioassay ;
Scenedesmus ;
Eutrophication ;
Water pollution effects(Plants)
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-204 232 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
68p |
Abstract |
Adapting continuous culture techniques for the measurement of micro-nutrient effects upon algae growth has been shown to be a satisfactory method. Several refinements and modifications of previously utilized equipment for the study of algae macro-nutrient uptake made it possible to test the effects of molybdenum upon Scenedesmus quadricauda. However, with the progressively reduced substrate levels of molybdenum two problems became increasingly apparent: Molybdenum contamination of the media by magnesium sulfate approached or surpassed the experimental levels in the dilution cultures and prevented the attainment of a molybdenum deficient control; and The extremely low substrate levels of molybdenum could not be detected by the neutron activation analysis due to interference by the high phosphate concentrations in the media. However, the analyses were useful where either the phosphate concentrations were low (lake water and reagent chemicals) or molybdenum concnetrations were relatively high. (Author) |