1990 Grayling Spawning Report 



6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 



LENGTH CLASS (0.5 inch) 



Figure 4. Length frequencies of Arctic grayling captured during the 

 1989 spawning run (by half inch length group) . Ripe 

 grayling included all fish identified as either ripe, 

 mature, or spent. 



bridge near the town of Wisdom and in the lower portions (generally from their 

 mouth upstream one to two miles) of Swamp, Big Lake, and Rock creeks (Figure 1). 

 Isolated spawning areas were observed in side channels within the main stem Big 

 Hole River above the Highway 43 bridge near Squaw Creek and between Sawlog and 

 Fishtrap creeks. 



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