254 
Fishery Bulletin 107(2) 
Grenville Channel 
Taaltz 
Johnstone 
Strait 
Central Washington 
Figure 2 (continued) 
Island, and Prince William Sound. Populations from 
northern southeast Alaska formed a distinct cluster in 
the analysis, but populations from southern southeast 
Alaska were less distinct than those in the northern 
portion of the region. Some clusters in the dendrogram 
included populations from both southern southeast Alas- 
ka and northern British Columbia (Fig. 2). 
In British Columbia (BC), four geographically based 
regional groups of populations were observed in the 
Queen Charlotte Islands (QCI). North coast QCI popu- 
