IOO-i 



80 



60 



40- 



20 

 



20 



40 



60 



80 

 100- 



STANDARD LENGTH 1-50 

 (N) (268) 









A 

 2 





2 



A 













E 







E F 



!__. yft-L. 





B 



c 









D E 



IRI 



A] 



11409 



5703 



9967 



1) 



6466 



1 



7 



2) 



879 



5514 



9567 



Bl 



1 



151 



643 



C) 



7 



52 



374 



D) 



748 





488 



E) 



628 



68 



38 1 



F) 



1 



38 



23 



G) 







1 



2 



51-100 101-150 151-200 



(218) (811 (149) 



92-18 



47 



8856 



3383 



287 



25 



34 1 



92 



3 



~ 2 \ 



I 



1 



1 c 

 I s 



, 1 — I 



3T 



T 



to 



8460 

 23 

 8017 

 5209 



1 



400 



2 



20 



1 



8224 



2962 



598 



2 



533 



22 



142 



301-350 

 1178) 



1 



5736 



4982 



706 



1 



743 



80 



312 



351-400 

 (31 ) 



3210 







3189 



5134 



818 



3 



1491 



128 



83 



I— ite 



401-500 

 (12) 



2329 



AMPHIPODA 







HYPERIDEA 



2176 



GAMMARIDEA 



3824 



DECAPODA 



432 



POLYCHAETA 







COPEPODA 



263 



CHAETOGNATHA 



1006 



PISCES 



1462 



PELECYPODA 



Figure 9.— Percent frequency occurrence, percent number, percent volume 

 displacement, and index of relative importance (IRI) of higher taxonomic 

 groups of food for size intervals (mm) of Urophycis chuss. 



Figure 10.— Relationship between size of Urophycis chuss and volume of food 

 consumed (broken line), mean prey volume (solid line), and prey number per 

 stomach (dashed line). 



20 



z 



18- 



o 





o 



16- 



I 





< 



14- 



5 





O 



l? " 



K- 





(/> — 





" T 1 



1 O-i 



os 









5 



8- 



=> 





_i 



fi- 



O 





> 





z 



4- 



< 





UJ 



2- 





0- 



1.0 

 ^-~ 0.8H 

 §~ 0.6- 



OUJ 



0.4 



z> 



< UJ 



uj or 

 5 o- 



02 







jrd length 

 (N) 



I 



u 



< 



o 



CD 



5 



Z 



>- 

 LU 



rr 

 a. 



16 



