gravel bar downstream from Intake diversion (Figure 18) and large 

 numbers of sauger were present in the Tongue River (Figure 4) while 

 few sauger were present in the Yellowstone downstream from Forsyth 

 diversion (Figure 9) . 



Peterman and Haddix (1975) suggested that sauger were possibly 

 spawning downstream from Forsyth dam in 1974. However, not having 

 information on the chronology of the spawning run in the Tongue and 

 Powder rivers or on movement patterns, they may have mistaken the 

 return of mature sauger from spawning grounds in the tributaries as 

 the spawning run itself. Their data indicates that sauger were not 

 abundant at this location until late April in 1974. 



While electrof ishing the Yellowstone River at Miles City 

 during 1979 two gravel bars downstream from the mouth of the Tongue 

 River where ripe female sauger had been collected were kick sampled 

 for eggs. Sampling was done on April 30, the day of peak male 

 sauger numbers in the Tongue River (Figure 4) and of peak egg 

 numbers at Intake (Figure 18) . No eggs were found. 



To locate spawning areas of sauger and walleye in the 

 Yellowstone River from Miles City to North Dakota (272 km) this 

 reach of river was electrof ished and kicked sampled for eggs where 

 concentrations of sauger and walleye were apparent. Sampling began 

 on April 19, 1980, two days after collection of the first spent 

 female sauger, and concluded on April 27, 1980. During this time, 

 peak numbers of sauger were present in the Tongue and Powder rivers 

 (Figure 4 and 5) . 



50 



