SOUTHEASTERN ALASKA SALMON STATISTICS 
615 
the history of the industry. Partly on account of these large unallocated catches it 
is impossible to make a detailed analysis of the catch, but the figures for the district 
as a whole are interesting. The catches from 1904 to 1927 are shown graphically in 
figure 42. With the exception of 3 years in which the catch was exceptionally low 
the general trend has been upward in both the southern and northern part. The 
small catch of 1921 was, as has been repeatedly pointed out, due to economic condi- 
tions. That of 1927, however, was unquestionably due to poor runs — a condition 
which prevailed generally throughout southeastern Alaska. The catches of pink 
salmon in the southern part of the strait have been consistently higher than those in 
the northern part, falling below in only 1 year — 1916. 
in 
O 
W) 
o 
ID 
o 
IN 
CM 
CB 
G) 
CD 
<r» 
Figure 43.— Catch of chum salmon in the Clarence Strait district, 1904 to 1927. 
The catches of chum salmon fluctuated widely and abruptly throughout the 
entire period for which data are available, but it is doubtful that there were corre- 
sponding variations in the runs since this species was not especially sought after in 
the years when pink salmon were abundant. Figure 43 shows the catches from 
1904 to 1927. It is very clear that the southern part of Clarence Strait is much more 
productive of chums than is the northern part, the difference being much more 
marked than in the case of the pinks. The catch of this species has apparently not 
yet fully recovered from the drop in production that occurred in 1921 as the average 
catch in the period 1922-27 is distinctly below that of 1910-20 in both parts. It is 
doubtful, however, that this is indicative of real depletion for the reason given above. 
