Subbasin Allocation of adults returning to the subbasin follows a multinomial pro- 



Allocation cess, with the twist that hatchery needs and natural escapement targets 



have priority over harvest. Hatchery and natural adults are allocated 

 among hatchery spawning, natural spawning, and terminal harvest accord- 

 ing to a suite of parameters that direct the allocation process shown in fig- 

 ure 5. The number of fish available to the hatchery is determined by the 



Natural 

 Returning Adults 



(subesp) 



Hatchery 

 Returning Adults 



(hsubesp) 



< hco Irate 



colrate j 



minesp ■> 

 maxthar J 



z: 



subharv 



hatneed 



prspsv 



supplemental 

 adults 



hprspsv 



Natural Spawning 



I 



prspsv 



Hatchery Spawning 



Figure 5 — Conceptual flow diagram of hatchery take and natural 

 escapement of adults. The abbreviations are explained in table 1 . 



13 



