56 BULLETIN OF THE BUREAU OF FISHERIES 



Table 21. — Karluk red-salmon run of 1926. Average lengths and weights of age group 5% throughout 



the season 



Centimeters 



Hectograms 



Males 



Females 



Males 



Females 







61. 6 



59. 2 



24. 7 



22. 0 



61. 4 



58. 9 



24. 5 



21. 8 



61. 2 



59. 0 



24. 4 



22. 0 



60. 7 



58! 8 



24. 2 



21. 9 



60. 8 



58. 9 



24. 1 



22. 0 



61. 0 



58! 8 



24. 2 



21. 9 



60. 6 



59! 4 



23. 8 



21. 8 



60! 6 



58. 9 



23! 9 



21. 8 



60. 2 



58. 8 



23! 6 



21. 8 



60. 7 



58! 8 



24. 0 



21. 8 



61. 1 



68! 7 



24! 4 



21. 9 



61. 3 



58. 7 



24. 7 



22. 0 



6l! 6 



59! 1 



24.9 



22! 1 



61. 6 



58. 9 



24. 9 



22. 3 



61.7 



59.2 



25.1 



22.5 



61.8 



59.8 



25.5 



23.3 



61.8 



59.9 



25.6 



23.4 



62.3 



60.3 



26.2 



24.2 



63.0 



60.8 



27.2 



24.8 



63.1 



61.4 



27.6 



25.6 



63.4 



61.7 



28.0 



25.8 



63.3 



61.6 



27.8 



25.8 



63.7 



61.6 



28.4 



25.9 



63.7 



61.4 



28.3 



25.5 



64.0 



61.3 



28.4 



25.2 



64. 1 



61.4 



28.3 



25.3 



64.4 



61.9 



28.6 



26.0 



64. 6 



62.4 



29.1 



26.9 



64.8 



62.4 



29.7 



26.9 



65.0 



62.6 



29.9 



27.1 



64.6 



62.3 



29.4 



26.6 



64.6 



62.6 



29.2 



27.0 



64.5 



62.3 



29.4 



26.6 



64.4 



62.4 



28.9 



26.8 



Date 



July 30 



July 31 



Aug. 2 



Aug. 3 



Aug. 4 



Aug. 5 



Aug. 6 



Aug. 10 



Aug. 11 



Aug. 12 



Aug. 14 



Aug. 16 



Aug. 17 



Aug. 18 



Aug. 19 



Aug. 20 



Aug. 21 



Aug. 25 



Aug. 26 



Aug. 27 



Aug. 28 



Sept. 1 



Sept. 3 



Sept. 4 



Sept. 6 



Sept. 7 



Sept. 8 



Sept. 9 



Sept. 10 



Sept. 11 



Sept. 13 



Sept. 14 



Mean 



Centimeters 



Males Females 



63.9 



62.4 

 62.4 

 62.8 

 62.8 

 63.0 

 62.9 

 63.0 

 62.9 

 62.6 

 62.7 

 62.9 

 63.0 

 63.0 

 62.8 

 62.9 

 62.6 

 62.5 

 62.4 

 62.8 

 62.6 

 62.5 

 62.4 

 62.4 

 62.4 

 62.1 

 61.9 

 61.8 

 61.9 

 61.6 

 61.5 

 61.4 

 61.6 



62.0 



Hectograms 



Males 



29.4 

 29.9 

 30.7 

 31.1 

 31.1 

 31.6 

 30.8 

 30.8 

 29.8 

 30.5 

 30.3 

 30.5 

 30.5 

 30.5 

 30.8 

 30.4 

 30.5 

 30.2 

 30.3 

 30.2 

 30.0 

 29.1 

 29.7 

 29.9 

 29.2 

 28.9 

 28.7 

 29.2 

 29.1 

 29.0 

 28.5 

 28.5 



28.2 



Again, there is a slight recession in size during the latter half of June, to be 

 followed by a recovery in early July, and this by a rapid increase from the 10th 

 of July on through the remainder of that month and into early August. During 

 the first two weeks of September there is the usual decline in size, registered in males 

 and females alike and in both length and weight. Careful inspection of the table 

 shows clearly that we are dealing in this series with something more than simple 

 growth phenomena during a period of vigorous feeding. A regular succession of 

 events is indicated in this and similar tables for previous years contained in this 

 report. A distinct tendency toward increase or decrease in size, shared by both 

 males and females, is shown for the same period in each year, indicating that in 

 different phases of the run we are dealing with heterogeneous material with different 

 growth histories. For comparison with the succession of sizes that accompany 

 the course of the season in the case of the 5 3 group, we give, in Table 22, the average 

 lengths and weights of the 6 3 and the 6 4 groups for certain periods throughout the 

 season. 



Table 22. — Karluk red-salmon run of 1926. Average lengths and weights of age groups 63 and 6i 



throughout the season 





Age group 6> 



Age group 6t 



Centimeters 



Hectograms 



Centimeters 



Hectograms 



Males 



Females 



Males 



Females 



Males 



Females 



Males 



Females 



June 15-29 - 



63.7 



61.7 



27. 1 



24.9 



60.3 



58.5 



23.5 



21.5 



July 1-31 



64.9 



62.2 



28.7 



25.5 



63. 1 



61.3 



28.3 



25.7 



Aug. 2-28 



67.0 



62.8 



31.6 



26.0 



65.2 



62.4 



29.0 



26.4 



Sent 1-14 _ ___ 











65.6 



62. 1 



29.8 



25.0 



' _! r -_ 



1 



