796 



Fishery Bulletin 97(4), 1999 



400 1 

 300- 

 200 

 = 100 



w 



< 







-100 

 -200 



-300 



Upper slope 



Middle slope 



Shelf 



-200 



I 



-100 



100 

 Axis I 



200 



I 



300 



—I 

 400 



Figure 9 



Results of a detrended correspondence analysis of mean annual species catch compo- 

 sition ( 1990-94) in CDF&G reporting blocks off Eureka. Three clusters are recog- 

 nized as unique depth zones. Numbers are CDF&G reporting block numbers. 



