WWtKKAW >H»» 



OCT. 1978 



T«nty 



Intor 

 ■ tat* 

 Bridgo 



- it. IK' 



• 



KU 



:9 



1 Empty 



A-COIOPHrUM SAIMONIS 



C CAl>NOlD COtl^OM 



N NEOMTSIS AftCEOlS 



U UNIDENTIFIED COfi'ODi 



X-PlANT MATERIAL 



T FISH SCALE* 



I DIGESTED MATERIAL 



0:43 



4 Empty 



MAY 1979 1 



Jatly 



A 



laniy 

 Point qL. 



jf a pa/nip n . (I 



n=27 



* 



• rat* 



5 



■ ridg* oL 



id»^-M^ . 



n = 115 



■ . n^ ifS ^ .t Vi 



To n g 11 • 



F»int L ._ 



10 12 14 16 18 20 22 24 26 28 30 

 FORK LENGTH IN cm 



m 



n:ll 



3 Empty 



PUCINl F.O 



Figure 3. Lengths and food use of American shad captured during two surveys 

 at four Columbia River estuarine sites. 



OCT 1978 t 



CHINOOK SALMON 



Tom, 51 



Point u^ 



stole - 



Bndg. 



n:J 



1 Empty 



- - - 



longu. ,0 T 



Pent 5 ; 



1 = 72 





A COROPHIUM SAIMONIS 



B ANISOGAMMARUS CONFER VICOLUI 



G ClRRIPEDIA 



H HOMOPTERA 



K DIPTERA 



M CORIXtOAE 



O HYMENOPTERA 



Z DIGESTED MATERIAL 



MAY 1979, 



Jotty 



■ H- 



n:34 



1 Empty 



6 8 10 12 14 16 18 20 



'Oil LENGTH IN cm 



PIICENT I. o 



Figure 4. Lengths and food use of chinook salmon. 



444 



