||Carbon Dioxide and Oxygen-Nitrogen Ratios as Factors Affecting Salmon Survival in Air-Supersaturated Water.
Nebeker, Alan V. ;
Bouck, Gerald R. ;
Stevens., Donald G. ;
||Corvallis Environmental Research Lab., Oreg. Western Fish Toxicology Station.
Carbon dioxide ;
Water pollution ;
Oncorhynchus nerka ;
Gas bubble disease
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||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.
||Pub. in Transactions of the American Fisheries Society, v105 n3 p425-429 Jul 76.
|NTIS Title Notes
||+++Reprint: Carbon Dioxide and Oxygen-Nitrogen Ratios as Factors Affecting Salmon Survival in Air-Supersaturated Water.
|PUB Date Free Form
||6C; 6T; 13B; 98F; 57Y; 68D; 86O
||PC A02/MF A01