46 U. S. BUREAU OF FISHERIES 
Straits are not destined to any one particular locality, but are quite 
diversified in their routes of migration. Tagged pink salmon were 
recaptured in 26 different salmon traps in Western District, in 36 
salmon traps in Eastern District, in 16 traps in Sumner Strait Dis- 
trict, and in 1 trap in Clarence Strait District. Seine boats reported 
captures in 19 localities, and gill nets in one location. Of the total 
of 684 recaptures, 551 were made by traps, 128 by seine boats, 2 by 
gill nets, 2 from streams, and 1 unknown. The traps caught 80 per- 
cent of the tagged salmon that were recaptured, the seine boats 19 
percent, and 1 percent was taken by miscellaneous gear. 
Racial study.—A racial analysis of the pink salmon in Southeast- 
ern Alaska is being made. ‘The first step in the analysis is to deter- 
mine from body measurements suitable indices for comparing the 
populations, i. e., ratios of measurements that are characteristic of 
each population. At present, 15 ratios have been devised and are 
being tested to determine their reliability as racial indices. After 
these racial indices are determined, the experiment will reduce to the 
comparison of populations from various localities using these indices 
and thus determine the races of pink salmon existing in Southeastern 
Alaska. 
ALASKA SALMON STATISTICS 
The collection, tabulation, and analysis of the daily catch records 
from the various types of fishing gear operated by the salmon 
fishery in Alaska was continued in 1939 by Elizabeth Vaughan. The 
purpose of this investigation is to provide a permanent source of 
information from the daily catch records of the various forms of gear 
from each of the geographical divisions of the territory. These 
records provide an invaluable part of any investigation of the fish- 
eries, and will make possible a complete survey of the industry year 
by year: The single comprehensive compilation will avoid duplica- 
tion of effort which would inevitably result from the individual col- 
lection of statistical data by several investigators, and will insure 
the collection of much valuable data which would almost certainly 
be lost with the passage of time and changes in the companies operat- 
ing, were the collection delayed until further investigation was un- 
dertaken. To eliminate duplications and _ losses, the statistical im- 
vestigation was originated with the following specific aims: (1) 
‘To collect all available records of the daily catch of salmon in Alaska 
from each form of gear; (2) to add to those early records the current 
data as it becomes : available each year; (38) to index carefully and 
segregate the data by area, species, and type of gear; and (4), to 
tabulate the data into usable form, and to analyze these tabulations 
as may be required in the study of specific problems. 
During the past years, all available records have been collected. 
The analysis of the trap-catch records for the Southeastern Alaska 
and Prince William Sound fishing districts have been made for the 
pink and chum salmon. 
During 1939 the data on the 1938 fishing season were collected, and 
the analysis of the trap-catch records of the pink and chum salmon 
for the Southeastern Alaska and Prince William Sound districts 
was added to the analyses for previous years. The analysis consists 
of determining the average daily catch per trap for each fishing 
