1) determine whether predation on YOY grayling by piscivorous 

 fishes is a limiting factor in the Big Hole River system; 



2) identify and determine the amount of use of local (Wisdom 

 area) irrigation ditches by grayling; 



3) sample and analyze the substrate composition of six 

 identified grayling spawning sites; 



4) continue to document the distribution of grayling (YOY and 

 adult) in the Big Hole River drainage. 



