108 



2a- 



2> 



s. 



u 



c 



E 16 



en 14- 



c 



12 



D- 



t 



/' \ 



fc> •© 



x x brown trout 



© © burbot 



64 65 66 67 68 69 70 71 72 

 year 



FIGURE 5. Average length of brown trout and burbot caught by gill 

 nets and trap nets, Clark Canyon Reservoir, 1964-72 

 (from Montana Department of Fish and Game, 1975). 



