MIGRATIONS OF PINK SALMON 
653 
ing. In all three of these experiments the small number of recoveries in area 4 may 
have been due partially to interception in area 3. 
Four lots of salmon were tagged in the vicinity of Kasaan Bay in 1930, 2 just 
south of the entrance to the bay near Island Point, 1 on July 29, and 1 on August 14, 
2 just north of the bay at Windfall Harbor on August 3 and 14. The results are given 
in columns 1-4 in table 3. The tagged salmon recovered from the July 29 tagging just 
south of the bay were captured in areas 1, 2, and 3, in almost equal proportions. The 
largest number, however, came from area 2. Those recovered from the August 14 
tagging at the same location were captured also in areas 1, 2, and 3, but this time by 
far the greater part were captured in area 2. In both of these experiments the localities 
in which the salmon were recovered in area 2 extended as far south as Cape Chacon. 
It is evident, then, that the majority of the pink salmon reaching the eastern shore of 
Prince of Wales Island, in the vicinity of Kasaan Bay, during the second week in 
August are migrating southward rather than northward. 
The individuals recovered from the August 3 tagging at Windfall Harbor, north 
of Kasaan Bay, were recaptured mainly in areas 1,3, and 4, with only a relatively 
small number coming from area 2. Of the 64 tagged individuals recovered, 33 came 
from areas south of Kasaan Bay, 27 from area 1, 5 from area 2, and 1 from area 6, 
while 30 came from areas north of the bay, 20 from area 3, and 10 from area 4. Thus, 
it may be assumed that the pink salmon at this time of the season are migrating in 
equal numbers in both directions from their point of tagging at Windfall Harbor. 
The recoveries from the August 14 tagging at this point, however, show a much dif- 
ferent picture. Of the 149 tagged salmon recovered from this experiment, 15 were 
captured in area 1, 40 in area 2, 93 in area 3, and 1 in area 4. Here we find 94 of the 
recoveries made in areas 3 and 4, north of the point of tagging, and only 55 made in 
areas 1 and 2, south of the point of tagging. Hence, it may be assumed that in the 
latter part of the season the pink salmon reaching the shores of Clarence Strait, in the 
vicinity of Windfall Harbor, are migrating northward in greater numbers than south- 
ward. It is also interesting to note that the recoveries from area 2 in this experiment 
were more numerous than from area 1, 40 as compared to 15, whereas the reverse was 
true in the August 3 tagging, 5 as compared to 27. This, together with the fact that 
the majority of the recoveries from the tagging south of Kasaan Bay on August 14 
were recovered in area 2, leads to the conclusion that most of the salmon reaching the 
shores of Clarence Strait below Approach Point, during the latter part of the season, 
are bound for localities along the east shore of Prince of Wales Island, in area 2, as 
far south as Cape Chacon. Where do these salmon come from? Are they part of a 
population migrating southward from Sumner Strait, or do they come from the popu- 
lations migrating northward in Clarence Strait that have turned near Kasaan Bay 
and move southward? A review of the tagging experiments carried on in Sumner 
Strait at Point Colpoys (see table 7) will show that most of the salmon migrating south- 
ward from Sumner Strait at this time of the season are bound for localities in area 4, 
with only a few migrating as far south as area 2. Therefore, considering the large 
volume of salmon caught in area 2 from Kasaan Bay south at this time of the season, 
there is only one probable origin of these southward-bound salmon. They must come 
from populations migrating northward in Clarence Strait that have turned westward 
and southward from the west shore of Gravina Island and the lower shore of Cleve- 
land Peninsula just above Caamano Point. This turning back of the salmon from 
the west shore of Gravina Island during the latter part of the season was indicated 
in the discussion of the taggings carried on along this shore in 1926 and 1927. Further 
