178 



numbers will contribute to better understanding and 

 nanagenent of the species. 



Methods: Review existing data and determine age- 

 classes of northern squawf ish present in the samples 

 based on length frequency and length-at-age 

 information. Examine catch-per-unit-effort data for 

 relationships with relative year-class-strength 

 indices. This approach may have limitations since 

 only three complete years of catch data are 

 availeQ>le from the prey abundance study. However, 

 catches from each year may represent multiple year- 

 classes of squawf ish. 



products: Data on relationship between juvenile 

 northern sq[uawfish eJsundance and year-class 

 strength. 



Schedule: Review data and report results by spring 

 1996. 



Objective 3. Replicate 1983-86 prey abundance studies 

 in summer 1995. Describe the composition, relative 

 eLbundance, and distribution of fishes in shallow 

 littoral habitats of the John Day Pool. 



