Table 4. — Percent frequency occurrence (F) , percent number (N) , percent volume (V) and Index of relative importance (IRI) of food items in Urophycis chuaa 



stomachs, by cruise. 



Taxon 





Fall 1976 







Winter 1977 







Spring 1977 







Summer 1977 





Food Icem 



F 



N V 



IRI 



F 



N V 



IRI 



F 



N V 



IRI 



F 



V !.' 



IRI 



Plant 



Sargassum spp. 

 Poacea 



Cnidaria 

 Hydrozoa 



Unidentified 

 Anthozoa 



Unidentified 



1.04 



.26 



.03 



.01 



.00 

 .00 



<1 

 <1 



Rhynchocoela 

 Anopla 

 Carinomella lactea 



Annelida 

 Polychaeta 

 Aphrodita hastata 

 Harmothoe spp. 

 I!, extenuata 

 Sthenalais limicola 

 Phyllodoce spp. 

 P. mucosa 

 Syllis spp. 

 Nereis spp. 

 N. gray! 

 Nephtyidae 



Aglaophamus circinata 

 Glycera dibranchiata 

 Goniada spp. 

 G. brunnea 



Scalibregma inflatum 

 Ophelina spp. 

 Haldanidae 

 Euclymene collaris 

 Clymenura sp. A 

 Praxillura longissima 

 Spionidae 

 Spiophanes bombyx 

 Onuphis pallidula 

 Marphysa spp. 

 M. sanguinea 

 H. belli! 

 Lumbrineris spp. 

 L. fragilis 

 L. cruzensis 

 L. impatiens 

 L. albidentata 



.43 .08 .73 <1 



.43 .08 .00 <1 



Lumbrinerides spp. 

 Arabella iricolor 

 Ehriloneris longa 



D_. magna 

 Cirratulidae 



Tharyx spp. 

 T. acuta 



Arapharete arctica 

 Terebellidae spp. 

 Nicolea venustula 

 Terebellides stroemi 

 Pherusa af finis 

 Chone infundibuliformis 

 Unidentified 

 Total Polychaeta 



Mo 11 us ca 

 Gastropoda 

 Lunatia heros 

 Mitre 11a spp. 



Pyramidel lidae 

 Qdostoaia spp. 

 Unidentified 

 Total Gastropoda 



6.44 



1.18 



3.28 



29 



7.30 



1.34 



4.01 



39 



.32 



.01 



.07 



<1 



3.49 



.14 



.11 



1 



1.90 



.06 



.27 



1 



.32 



.01 



.02 



<1 



.32 



.01 



.00 



<1 



7.30 



.24 



.74 



7 



.32 



.01 



.00 



<1 



1.27 



.04 



.50 



1 



1.27 



.05 



1.06 



1 



.63 



.02 



.04 



<1 



6.35 



.23 



2.81 



19 



.63 



.03 



.02 



<1 



.32 



.01 



.03 



<1 



.32 



.01 



.02 



<1 



.32 



.07 



1.10 



<1 



.63 



.02 



.19 



<1 



.32 



.01 



.01 



<1 



.32 



.01 



.04 



<1 



1.59 



.06 



.22 



<1 



8.25 



.57 



.94 



12 



.32 



.01 



.02 



<1 



.32 



.01 



.04 



<1 



.95 



.03 



.13 



<1 



4.13 



.23 



.25 



2 



17.78 



.68 



2.68 



60 



41.27 



2.68 



13.90 



684 



3.13 



.11 



.05 



<1 



4.17 



.14 



.12 



1 



.26 



.01 



.00 



<1 



.52 



.02 



.00 



<1 



.52 



.02 



.00 



<1 



.26 



.01 



.01 



<1 



1.82 



.05 



.03 



<1 



.52 



.02 



.01 



<1 



.26 



.01 



.00 



<1 



1.04 



.03 



.02 



<1 



.26 



.01 



.00 



<1 



5.47 



.18 



.18 



2 



.26 



.01 



.02 



<1 



.26 



.01 



.00 



<1 



.26 



.01 



.00 



<1 



2.34 



.11 



.05 



<1 



.52 

 .26 



.05 

 .02 



.13 <1 

 .02 <1 



1.30 



.05 



.03 



<1 



.26 



.01 



.03 



<1 



2.86 



.10 



.31 



1 



5.21 



.19 



.33 



3 



16.67 



.57 



.44 



17 



41.93 



2.17 



5.96 



341 



- 



- 



- 



- 



.26 



.01 



1.99 



1 



.95 



.03 



.01 



<1 



.26 



.01 



.00 



<1 



.95 



.03 



.01 



<1 



- 



- 



- 



- 



.32 



.01 



.00 



<1 



- 



- 



- 



- 



.63 



.02 



.00 



<1 



- 



- 



- 



- 



2.54 



.09 



.02 



<1 



.52 



.02 



2.00 



1 



1.53 

 2.30 



1.53 

 1.91 



.38 

 .38 



.08 

 .11 



.08 

 .12 



1.91 .09 



.38 .02 

 .76 .04 



.02 

 .02 



.04 

 .28 



.05 



.07 



.04 

 .07 



<1 



1 



<1 

 <1 



.66 1 



.01 <1 

 .01 <1 



<1 

 <1 



1.15 .10 .27 <1 



1.91 .10 .30 1 



8.78 .48 .73 11 



24.43 1.58 3.20 117 



39 



