Figure 11 - Monthly occurrence and relative abundance of 



salmon, striped bass and shad juve n iles as re- 

 lated to the 19U8 and 19U9 flow patterns in the 

 Delta,, adjusted to the Delta-Mendota demand. 

 The area of the circles represents the monthly- 

 occurrence in per cent of the total seasonal 

 catch, and each circle is divided proportionate 

 to the monthly catch of the three species . The 

 Delta inflow and outflow patterns for 191*8 and 

 19U9, modified for (1) the Initial Central Valley 

 Project Operation and (2) Coordination with Folsom 

 Operation of the Tracy Pumping Plant, are shown in 

 their relative magnitude „ The Delta upland use 

 and Delta consumDtion are not illustrated* 





