— I 1 



10 15 



Discharge (mVsec) 



Figure 23. Plot of the quantity of sauger taken per interval of 

 discharge in the spring spawning migration of 1976 in the Tongue River. 



10 15 20 



Dischorge (mvsec) 



Trip Catch Rate 

 vs. Discharge 



.^' 



-T 1 1 



10 15 20 



Dischorge (mVsec) 



Figure 24. Quadratic regression analysis of discharge versus catch 

 rates of sauger collected in the spring of 1976 in the Tongue River. 



53 



