area marked by two orange-colored 'spawning flags' which were 

 placed by MDFWP personnel at locations where adult spawning 

 grayling were captured during electrof ishing in late April and 

 May, 1989. The presence of large concentrations of YOY grayling 

 in areas where spawning grayling were captured suggests a high 

 site fidelity of YOY grayling to the areas in which they were 

 spawned. 



Area 2 (a and b) (Figs. 4 and 5) consisted of one long 

 riffle-pool-riffle sequence and was located approximately 500 

 yards upstream of area 1. Area 3 (Fig. 6) was actually the 

 downstream end of a very long riffle-run-pool-riffle complex of 

 which area 4 (Fig. 7) was the upstream portion. These are 

 presented primarily to show the location of YOY grayling capture 

 sites that resulted from the downstream run with the backpack 

 shocker. Most of these fish were captured in a small sidewater 

 pocket immediately upstream of a shallow riffle. Though herding 

 was not directly observed in this case, it seems likely that the 

 fish were driven from the pool-run habitat upstream of the 

 capture sites. No YOY grayling were captured with either the 

 grids or the backpack shocker while moving in an upstream 

 direction in this general area. Area 4 was upstream of, and 

 separated from, area 3 by a 140 foot long shallow run. There 

 were no YOY grayling collected in this run area, as the grayling 

 were probably driven out while the electrof ishers were walking 

 through the area. Grids set in this shallow run also yielded no 

 YOY grayling. The upper boundary of area 4 was located on a 

 riffle that adult grayling may have spawned on during the Spring 

 of 1989, however no 'spawning flag' was visible in the area 

 (livestock in this area had eaten or displaced many of our 

 flagging markers and may have made the 'spawning flags' less 

 visible) . 



Typically, the fish captured while electrof ishing in an 

 upstream direction were concentrated in areas that: 1) provided 

 some type of cover, and 2) acted in some way as a visual barrier 

 to further upstream movement. These areas were usually 



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