Record Display for the EPA National Library Catalog

RECORD NUMBER: 12 OF 59

OLS Field Name OLS Field Data
Main Title Characteristics of Bacteria Adapted to Low Nutrient Conditions in Lake Ontario.
Author Lucyszyn, E. ; Pritchard, P. H. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL.
Year Published 1979
Report Number EPA-600/J-79-054;
Stock Number PB80-184302
Additional Subjects Bacteria ; Nutrients ; Water pollution ; Lake Ontario ; Metabolism ; Growth ; Aquatic microbiology ; Lactose ; Aeromonas ; Pseudomonas ; Reprints ; Ecosystems
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB80-184302 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 13p
Abstract
The fate of organic pollutants in aquatic ecosystems depends, in part, on metabolic activities of the indigenous microflora. Knowledge is therefore needed for the growth characteristics of aquatic bacteria in low nutrient conditions typical of many aquatic environments. The authors have studied changes in bacterial populations from Lake Ontario, using continuous culture enrichments, with lactose as the sole carbon and energy source. Enrichment studies have shown that the concentrations of lactose, the type of water utilized for inflowing media, and the inoculum source affected the outcome of continuous culture enrichments from fresh-water samples. Two isolates from enrichments experiments, an Aeromonas and a Pseudomonas, were obtained using concentrations of 50 and 5 mg/liter lactose, respectively. These isolates were shown to be competitive with each other at different lactose concentrations.