454 
BULLETIN OF THE BUREAU OF FISHERIES 
Regulations for 1927 increased the length of gill nets to 250 fathoms, closed Port 
Frederick south of Inner Point Sophia, except to gill nets which were permitted to 
operate to June 1. On April 
27, 1927, the order affecting 
Port Frederick was rescinded 
in part and the order of 1925 
was restored. 
In view of the fact that all 
regulations promulgated be- 
fore 1924 were more or less 
general in character, it seems 
probable that the effect upon 
the catch was much the same 
in all localities, but with the 
application of the more speci- 
fic regulations in 1924 and 
subsequent years, certain 
localities should show a ma- 
terial reduction in catch, 
more especially the bays in 
which seining had been done 
near the mouths of streams. 
The requirement of a distance 
interval of 1 miles between 
traps probably reduced the 
catch along some shores but 
only to make it better in 
other places, while it was 
practically without effect 
upon the catch of traps in 
5? 2? 2 H? 2 isolated positions. The most 
Figure 11. — Percentage deviation from trend of catch of red salmon in Yakutat effective regulations Were Un- 
questionably those providing 
closed periods, especially seasonal closures. The weekly closed periods were pro- 
bably less effective, as 18 years of unbroken application seems not to have retarded 
the general decline in the catches. 
