||Effects of Air-Supersaturated Water on Adult Sockeye Salmon (Oncorhynchus nerka).
Nebeker, Alan V. ;
Stevens, Donald G. ;
Stroud, Richard K. ;
||Corvallis Environmental Research Lab., OR. ;Oregon State Univ., Corvallis. Dept. of Veterinary Medicine.
Columbia River ;
Water pollution ;
Experimental data ;
Physiological effects ;
Sockeye salmon ;
Oncorhynchus nerka ;
Water pollution effects(Animals) ;
Threshold limit values ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Adult sockeye salmon (Oncorhynchus nerka) were exposed to air supersaturated water in the laboratory from July 8 to August 13, 1974, approximately the same time period that they are exposed to supersaturated water during their movement through the lower and middle sections of the Columbia River. The first mortality occurred after 77h exposure at 120% saturation; 40% of the fish were dead after 127h. At 115% saturation the first mortality occurred after 523h (21 days) and 40% were dead after 835h (35 days). No further mortality occurred at 120 or 115%. However, at 120 and 115% saturation, survivors exhibited many sublethal lesions such as hemorrhaging and emphysema (bubbles) in the mouth, on the gills arches, body surface, and fins, etc. No deaths or signs of gas bubble disease occurred in the fish held at 110% saturation in water 2 ft (60 cm) deep. The lethal threshold was near 114% saturation.
||Pub. in Jnl. Fish. Res. Board Can., v33 n11 p2629-2633 1976. Prepared in cooperation with Oregon State Univ., Corvallis. Dept. of Veterinary Medicine.
|NTIS Title Notes
||Reprint: Effects of Air-Supersaturated Water on Adult Sockeye Salmon (Oncorhynchus nerka).
|PUB Date Free Form
||6T; 6F; 8A; 57Y; 68D; 47D
||PC A02/MF A01