MIGRATIONS OF PINK SALMON 
651 
A total of 2,629 pink salmon were tagged, of which 912, or 34.7 percent, were 
recovered. Of the total number recovered 246 were captured in area 1, 261 in area 2, 
128 in area 3, 35 in area 4, 241 in area 6, and 1 in Chatham Strait, an outlying dis- 
trict. Of the 246 salmon captured in area 1, 151 were taken by the fishery on the 
west shores of Annette and Gravina Islands, 25 in the north arm of Belim Canal, 9 in 
the south arm of Belim Canal, and the remaining 61 in Revillagigedo Channel and 
waters east of Cape Fox. It will be recalled that the results from the Cape Fox 
taggings showed more recoveries from the south arm of Behm Canal than from the 
north arm, whereas the results from the Cape Chacon taggings show just the reverse. 
That larger numbers of the salmon migrating through Clarence Strait are bound for 
the north arm of Behm Canal, than for the south arm, will be definitely demonstrated 
later in the discussion of the 1935 and 1936 taggings near Cape Chacon. Although 
only 35 tagged salmon were captured in area 4 it cannot be assumed that this repre- 
sents the exact proportion bound for this area. Since the salmon bound for area 4, 
at the extreme upper end of Clarence Strait, must run the gauntlet of all the fishing 
gear along the shores of the strait from Cape Chacon northward, it is not unlikely 
that some of the tagged salmon captured in areas 1, 2, and 3 were destined for area 4 
but were intercepted en route. This is one of the difficulties that make it impossible 
to determine the exact distribution of the salmon migrating through a main channel 
of entry by tagging experiments conducted near the entrance to the channel. By 
tagging at different points along the channel part of the difficulty encountered from 
interception of the tagged individuals may be overcome. However, in using this 
system of tagging in a channel such as Clarence Strait, where the fish are migrating 
in both directions, further difficulties arise that far offset the advantages gained. 
From the results of these experiments it appears that the pink salmon migrating into 
Clarence Strait during the latter part of the season are bound mainly for localities in 
areas 1, 2, and 6. u 
TAGGING EXPERIMENTS ON GRAVINA ISLAND AND IN THE VICINITY OF KASAAN BAY 
The results from the early tagging experiments carried on at points in the vicin- 
ity of Kasaan Bay and along the west shore of Gravina Island will be considered 
next. Three experiments were carried on in the latter region; one at Nelson Cove 
early in July 1926, and one each at Nelson Cove and Dali Head early in August 1927. 
The exact locations of these points are shown by dots on Gravina Island in figure 1. 
Nelson Cove was reported by Rich (1927-29) as located at the north end and Dali 
Head at the south end of the island, and the results from the experiments are given 
in table 3. 
