Citharichthys arctifrons 



90 



80- 



70 



60- 



50- 



40- 



30- 



20- 



10- 



0- 



10 



20 



30 



20- 



50- 



60 



70' 

 80- 

 90- 



FALL 1976 

 A 



WINTER 1977 



1--- 



19% 



,73% 



IRI 

 A 13972 



I 

 2 



B 



C 



D 

 E 

 F 

 G 

 H 



150 



114 96 



346 



62 



I 



10 







2 



I 



5% 



15% 



85% 



SPRING 1977 



A 



AMPHIPODA 



11734 



1 



HYPERIDEA 



<| 



2 



GAMMARIDEA 



11722 



B 



POLYCHAETA 



2550 



C 



COPEPODA 



4 



D 



CUMACEA 



109 



E 



OSTRACODA 







F 



LARVACEA 







G 



PISCES 







H 



DECAPODA 







90-| 

 80- 





A 

 1 

 2 



3979 



«l 



3967 







70- 





B 



4735 







60- 





C 

 D 



2 

 260 





F 







50" 





E 

 F 





 244 1 







40- 

 30- 



A 



G 



H 





 2 



B 



C 





20- 







10- 





OA 







10- 



\ 40% 

 4% 



20- 













30- 



81% 





29°/ 



40- 













50- 



81% 





60 J 





0/ 









3% 



IRI 



% FREQUENCY 



Figure 23.— Percent frequency occurrence, percent number, percent volume 

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

 groups of food in the diet of Citharichthys arctifrons, by seasonal cruise. 



24 



