Page 4 8 



Table 8. Maximum daily water temperatures recorded on the Big Hole 

 River and its tributaries, July 12-September 7, 1988. 



Date 



Time 



Location 

 (Letters refer to 

 sample sections) 



Temperature ( F) 



July 12 

 July 13 

 July H 

 July 18 

 July 19 

 July 20 

 July 21 

 July 21 



August 3 



August A 



August 6 



August 9 



August 10 



August 15 



August 16 



August 17 



August 18 



August 23 



August 24 



August 2U 



August 25 



August 30 

 September 



1645 

 1545 

 1900 

 1645 

 1140 

 1310 

 1335 

 1630-2030 



1345 

 1800 

 1855 

 1720 

 1910 

 1845 

 1445 

 1700 

 1900 

 1630 

 1300 

 1835 

 1515 

 1710 

 1530 



F 



G 



E 



K 



E 



K 



H 



Many spots on 

 Big Hole River 

 near Wisdom 



H 



H 



H 



H 



H 



H 



J 



J 



H 



H 



I 



H 



I 



J 



J 



71 

 73 

 72 

 75 

 64 

 71 

 72 

 75-79.5 



63. 



74 

 72 

 72 

 70 

 62 

 65 

 69 

 70 

 71 

 64 

 73 

 67 

 67 

 62 



Table 9. A conparison of the distance (ft) from capture sites to the 

 base of the nearest upstream riffle when the shocking crew 

 worked upstream vs. downstream. Standard deviations are in 

 parenthesis. 



Situation 



Mean 



Median 



Range 



Number in 

 sample 



Uorking upstream 23.2 (45.3) 9.5 

 Working downstream 35.1 (68.9) 6.9 



-17.4 - 296.8' 79 

 -20.3 - 196.1' 12 



Negative numbers indicate that capture sites were in riffles. 



