TABLE 1 Levels of Dissolved Gases' in Various Alpine Rivers 

 of the Klamath Basin, Oregon 



Location 



Date 



Time 



Dissolved oxygen 

 ppm mmHg 



Dissolved nitrogen 

 %Sat mmHg 



Klamath Hatchery Spring and Crooked Creek 



North Spring Aug. 31, 74 1100 



Basin outlet Aug. 21 1100 



Aug. 21 1630 



Sept. 24 1520 



1130 

 1045 



1500 

 1500 

 1545 



1700 

 1040 

 1600 



1600 

 0930 

 1040 



1215 

 1315 



1330 

 1415 



0830 



13.0 



658 



- 5 



0.922 



8.7 



112 



103.5 



540 



'Dissolved gas levelsestimated by calculationson Weiss saturometer reading. 



lamprey, and abundance of invertebrates including 

 stonefly and mayfly nymphs, caddis fly larvae, 

 midge larvae, snails, and sponges. 



Fort Creek 



This stream originates from springs similar to 

 Crooked Creek. The August samplings showed dis- 

 solved gas levels (AP) of 36 mm Hg (1.055 atm) and 

 this was 27 mm Hg (1.043) in September. These 

 levels may indicate a pattern of declining gas levels. 



Fort Creek has a reputation for being a good 

 trout stream, but neither the fish nor the inverte- 

 brate fauna were sampled. 



Wood River 



This is a stream which is both too swift and deep 

 to wade safely. Its total gas saturation level has 

 been about 1 .050 atm in both August and September. 

 The fish and invertebrates in it were not sampled. 



Spring Creek 



This stream arises from springs in a basin about 

 2 km long and perhaps 100 m wide. At its outlet, the 

 discharge is at most a few hundred cubic feet per 

 second and like Wood River, it is generally too deep 

 and swift to wade safely. It flows less than 1 km and 

 joins the Williamson River. 



Supersaturation in Alpine Streams 39 



