538 
BULLETIN OF THE BUREAU OF FISHERIES 
the salmon traveling westward ever go beyond Peril Strait. Fishing in this district 
has been carried on largely by seines which ranged in number from 3 in 1904 to 19 
in 1919 and 15 in 1927. Traps were first used in 1912. Two were operated that 
year near the eastern entrance and made small catches. Only one was driven in 
1913 and none in the next 3 years. The use of traps was resumed in 1917, two being 
operated, the number increasing to five in 1920, dropping to one in 1922, and none 
in 1923. Resumption of trap fishing was again gradual until 1927 when three were 
driven. 
Figure 31 shows graphically that the catch of cohos in 1927 was exceeded but 
six times in 24 years, that the production of chums and pinks in the 3 years from 
1925 to 1927 was larger and averaged more than for any similar period in the his- 
o ei o o o 
Figure 31.— Catch of coho, chum, pink, and red salmon in the Peril Strait district, 1904 to 1927. 
tory of the fishery, and that the catch of red salmon in 1927 was below the average 
for the last 22 years, a difference which may be accounted for by the permanent 
closing of Hanus Bay in 1925. On the whole the fisheries of Peril Strait appear to 
be approximately as productive now as ever before although since 1924 all fishing, 
except trolling, has been prohibited after August 1 1 in each year. 
SUMNER STRAIT DISTRICT 
The Sumner Strait district is bounded on the south by a line extending from 
Cape Decision westward and southward of Coronation Island across Iphigenia Bay 
south of Warren Island to the southern end of Kosciusko Island at Halibut Harbor; 
on the north by a line across Keku Strait and Wrangell Narrows at 56° 40' N. lati- 
tude; on the east by a line across Sumner Strait at 132° 40' W. longitude from Mit- 
kof Island to Zarembo Island. The line of division between Sumner Strait and 
Clarence Strait extends from Point Colpoys on the north shore of Prince of Wales 
