Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Carbon Dioxide and Oxygen-Nitrogen Ratios as Factors Affecting Salmon Survival in Air-Supersaturated Water.
Author Nebeker, Alan V. ; Bouck, Gerald R. ; Stevens., Donald G. ;
CORP Author Corvallis Environmental Research Lab., Oreg. Western Fish Toxicology Station.
Year Published 1976
Report Number EPA/600/J-76/016;
Stock Number PB-265 255
Additional Subjects Salmon ; Carbon dioxide ; Oxygen ; Nitrogen ; Supersaturation ; Water pollution ; Concentration(Composition) ; Toxicology ; Fisheries ; Mortality ; Reprints ; Oncorhynchus nerka ; Gas bubble disease
Library Call Number Additional Info Location Last
NTIS  PB-265 255 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 7p
Juvenile sockeye salmon (Oncorhynchus nerka) were exposed to lethal levels of air-supersaturated water (120 percent, 125 percent, 130 percent total gas saturation) containing different oxygen-nitrogen ratios and different carbon dioxide concentrations. Fish mortality was not significantly different at different carbon dioxide levels (1.7 to 22.0 mg/liter CO2) when tested at the same total gas saturation concentrations. Total gas saturation levels are much more important than the O2/N2 ratios, as fish mortality will not occur unless total gas saturation exceeds 100 percent, regardless of the O2N2 ratios. There was a significant decrease in mortality when the ratio of oxygen to nitrogen was increased while holding the total percent saturation constant.