GRAYLING SPAWNING REPORT 



(where it moved to presumeably spawn), and then moved back to 

 Deep Creek where it was captured on August 4, 1988. Of ten fish 

 tagged during 1937 sampling and recaptured durirg the 1988 

 spawning season, half were tagged in the river nsar Fishtrap 

 Creek either during the previous May or November, four were 

 tagged in the Wisdom area during the previous May, and the other 

 was the Deep Creek fish mentioned above. This tag return 

 information lends support to observations by the authors that the 

 Big Hole River supports a population of grayling which appear to 

 use the entire river above Divide on a seasonal basis. A 

 portion of this grayling population normally moves to the upper 

 river (near Wisdom) during the spring and remains in this area of 

 the river during the summer before emigrating down river to 

 winter habitats. 



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