FISHERY INDUSTRIES. 



39 



fish, or more than 48 per cent. There was an increase of 15 per cent 

 in the catch of cohos, of nearly 90 per cent in dog salmon, a slight 

 decrease (about 4 per cent) in the humpback, and an increase of 5 per 

 cent in the catch of sockeyes. The total catch in southeast Alaska 

 increased but 6 per cent over that of 1911. Had it not been for the 

 phenomenally large catch of dog salmon no increase in the total 

 catch for southeast Alaska would have resulted. 



In central Alaska the seine catch shows an increase of 8 per cent 

 the gill-net catch an increase of 41 per cent, while the trap catch 

 shows an increase of more than 81 per cent. There was an increase of 

 9 per cent in the catch of cohos, of 252 per cent in chums, and a very 

 slight decrease (less than one-fifth of 1 per cent) in sockeyes. 



In western Alaska the gill-net catch shows an increase of more than 

 128 per cent, and the trap catch an increase of 208 per cent. Several 

 causes perhaps entered into this result. It was brought about per- 

 haps primarily by the development of the independent trap, prob- 

 ably in part the result of the multiplication of canneries, including 

 some plants that depended entirely on purchasing fish from in- 

 dependent fishermen. Another cause is the increasing knowledge 

 of the runs or movements of the fish, permitting a more ready 

 selection of good trap sites. A third may be found in the application 

 of the floating trap which has lately been perfected. Still another 

 influence was the strike early in the season, though this will doubtless 

 have a greater effect the next season than it had the last. The 

 necessity for a dependable source from which to obtain the raw 

 material is essential to the life of the canning industry. 



Salmon Taken in 1912, by Species and Apparatus, for Each Geographic 



Section op Alaska. 



Apparatus and species. 



Southeast 

 Alaska. 



Central 

 Alaska. 



Western 

 Alaska. 



Total. 



Seines: 



Colio, or silver , 



Dog, or chum 



Humpback, or pink 



King, or spring 



Red , or sockeye 



Total 



Gill nets: 



Coho, or silver 



Dog, or chum 



Humpback, or pink 



King, or spring , 



Red, or sockeye 



Total 



Traps: 



Coho, or silver 



Dog, or chum 



Humpback, or pink 



King, or spring , 



Red, or sockeye 



Total 



Number. 

 497,091 

 3,247,317 

 9,SSC,211 

 1,061 

 1,117,090 



14,748,770 



142,237 



125,582 



21,887 



83,779 



394,310 



767, 795 



392,206 



1,722,367 



10,227,737 



41,054 



1,452,067 



13,835,431 



Number. 



46, 738 



165,045 



992, 638 



968 



2,425,394 



Number. 



3,630,783 



62,814 



2,142 



51,913 



28,232 



678, 145 



823,246 



91,934 



202,983 



1,677,820 



25,516 

 2,593,052 



4,591,305 



188,347 

 746, 849 

 444,640 

 94,561 

 19,359,133 



20,833,530 



24,015 



146,448 



731,500 



4,107 



588,350 



1,494,420 



Number. 



543, 829 



3,412,362 



10, 878, 849 



2,029 



3,542,484 



18,379,553 



393,398 

 874,573 

 518, 440 

 206,572 

 20,431,588 



22,424,571 



508, 155 



2,071,798 



12,637,057 



70,677 



4,633,469 



19,921,156 



