The large nouth of the windowpane suggests that it feeds on active prey; 

 mysid shrimp are the predominant food consumed along with sand shrimp and 

 amphipods. Larger windowpane also feed on molluscs, squids, annelids, 

 echinoids, round herring, sand lance and silversides. 



An estimate of total population size is not available at this time. 



Bottom Trawl Survey Results 



The cumulative spring and autumn distributions over the time series are 

 shown in Figures 9.1 and 9.2. It is apparent that windowpane were residents 

 of the inner shelf and estuaries, and showed little seasonal movement. The 

 distribution pattern does not change when the pre-1976 cruises were deleted 

 (Figure 9.3). 



The graphs of mean weight and number per tow (Figures 9.4-9.7) reflect a 

 more regular occurrence in the inshore and northern strata sets. 



Length frequencies for six strata sets, arranged by season, are shown in 

 Figures 9.8-9.19. Compared to other finfish, these plots show the least 

 change. Some small fish were caught inshore in the central and southern 

 strata sets. 



Figures 9.2U and 9.21 show the percentage occurrence by stratum of young- 

 of-the-year (YOY); cutoff sizes were 8 cm for the spring series and 5 cm for 

 the fall series. YOY did occur in the inshore strata during the spring, 

 though very few were caught in autumn, wnen most YOY are probably close the 

 the beach or in estuaries where the vessels cannot sample. 



207 



