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Table 2. Total number and relative aiDundance of Arctic grayling and trout captured by olectrof ishing in the Big Hole 

 River drainage, July 6 - September 1, 1988. 



Number of fish captured (number per 1000 ft of stream length in parenthesis) 



Arctic grayling^ brook trout 



YOY <9 in >9 in YOY <6 in >6 in 



Stream/ 

 Sample Section 



rainbow trout 

 YOY <6 in >6 in 



Big Hole River 



A - Dooling Bridge (0) (0) (0) (0) 15 {19)"' 30 (37)^ (0) 39 (3.8) 27 (2.6) 

 B - Nelson Lane (0) 1 (0.3) 1 (0.3) 150 (53)'' 3 (0.8) 105 (30) (0) (0) 2 (0.6) 



C - Hirschy Ranch 



(0) 2 (0.3) (0) 106 (K) 1 (0.1) 153 (20) (0) (0) 2 (0.3) 



D - Above Wisdom Br. 9 (0.5) 5 (0.3) A (0.2) 

 (upper west channel) 



E - Above Wisdon Br. 42 (3.1) 19 (1.A) 6 (0.4) 

 (lower west channel) 



F - Above Wisdom Br. 1 (0.1) (0) (0) 

 (east channel) 



G - Below Wisdom Br. 50 (2.7) 2 (0.1) 1 (0.1) 

 (west channel) 



H - Below Wisdom Br. 196 (13) 14 (0.9) 10 (0.7) 

 (east channel) 



1 (0.1) 1 (0.1) 38 (2.2) (0) (0) 1 (0.1) 



1 (0.1) (0) 17 (1.2) (0) (0) 2 (0.1) 



(0) (0) 6 (0.6) (0) (0) (0) 



1 (0.1) 1 (0.1) 21 (1.1) (0) (0) (0) 



162 (11) 18 (1.2) 44 (2.9) (0) (0) 2 (0.1) 



Tributaries 

 I - Governor Creek 1 (0.2) 7 (1.7) (0) 33 (9.8)5 46 (14)^ 204 (61)" (0) 1 (0.2) 21 (5.0) 

 J - Swamp Creek 51 (5.0) (0) (0) 299 (29) 1 (0.1) 89 (8.8) (0) (0) (0) 



K - Steel Creek 



3 (0.4) 4 (0.5) 2 (0.3) 177 (24) 129 (18) 78 (11) (0) (0) (0) 



Irrigation ditches 



L - Above Wisdom Br. 

 (McDowell Ranch) 



M - Above Wisdom Br. 

 (McDowell Ranch) 



N - Above Wisdom Br. 

 (near airport) 



65 (8.6) (0) (0) 



4 (1.0) (0) (0) 



(0) (0) (0) 



(0) (0) 5 (0.7) (0) (0) (0) 



(0) (0) (0) (0) (0) (0) 



(0) (0) (0) (0) (0) (0) 



These sample sections correspond to sampling sections used in Figure 1. 



YOY = young-of -the-year fish; <6, >6, <9, >9 = fish under and over 6 and 9 inches, respectively. Fish •<:9 inches are 

 assumed to be age 1+ fish, and fish >9 inches are age 11+ and older fish. 



Numbers are only for the first 806 ft sub-section; numbers were not recorded for the remaining sub-section, but were 

 termed "abundant." 



Does not include the last 684 ft sub-section. 

 T)oes not include a 827 ft sub-section. 



