112 



U. S. BUREAU OF FISHERIES 



with 158 driven and 248 floating traps, 18 fewer driven traps but 

 73 more floating traps than were operated in 1924. 



Corresponding figures for central Alaska show 125 seines, or 17,575 

 fathoms, as compared with 115 seines, or 16,835 fathoms, in 1924; 

 855 gill nets, or 47,484 fathoms, compared with 799 gill nets, or 52,290 

 fathoms, in 1924, showing an increase of 56 nets, but a decrease of 

 4,806 fathoms. The number of traps operated was 128 driven and 

 8 floating, as compared with 97 and 5, respectively, in 1924. 



In western Alaska 10 seines, or 2,500 fathoms of webbing, were 

 used, an increase over the number shown in 1924 of 6 seines, or 2,000 

 fathoms of webbing. A total of 2,337 gill nets was used, having an 

 aggregate length of 272,546 fathoms, an increase of 421 nets, or 

 28,946 fathoms, in the quantity of webbing used. Four driven traps 

 were operated, one less than in 1924. 



Fig. 7. — Purse seine surrounding school of salmon 



Seines caught 30 per cent of the salmon taken in 1925, gill nets 15 

 per cent, and traps 53 per cent, while lines and wheels took the 

 remaining 2 per cent. 



Percentage of salmon caught in each Alaska district, by principal forms of apparatus 



The total catch of salmon in 1925 was 64,246,391, a decrease of 

 15,231,209, or 19 per cent, from the number taken in 1924. South- 



