252 



SALMON OF THE KARLUK RIVER, ALASKA 



TOTAL POPULATIONS 



As the commercial catch of Karluk River red salmon can be ascertained from the 

 records maintained by canneries operating in the Karluk area, and as the escapement 

 can be determined by counting the fish passing upstream through the weir, it is 

 possible to determine the number of fish in the total population or run. In determin- 

 ing the run of a 7-day period the catch of that period has been added to the escapement 

 of the following 7-day period because of the aforementioned lag between the time the 

 fish enter the river and the time they go through the weir. The weekly cumulative 

 totals of the runs for the years 1921 to 1936, inclusive, are presented in table 19. 



Table 19. — Cumulative totals of the runs of Karluk red salmon for each week from 1921 to 1936, and 

 ■percentage of the total run that had cumulated to the end of each week 



[Run based on catch plus escapement of following week, as explained in the text] 



Week 

 ending- 



May 24. 

 May 31 . 

 June 7__ 

 Junc 14.. 

 June 21.. 

 June 28. 

 Julv 5... 

 July 12.. 

 July 19.. 

 July 26- 

 Aug. 2... 

 Aug. 9.. 

 Aug. 16. 

 Aug. 23. 

 Aug. 30. 

 Sept. 6.. 

 Sept. 13. 

 Sept. 20.. 

 Sept. 27. 

 Oct. 4 ... 

 Oct. 11.-. 

 Oct. 18- 



1921 



Num- 

 ber of 

 fish in 

 thou- 

 sands 



6 

 22 



177 



315 



545 



770 



881 



976 



1,134 



1,395 



1,636 



1,871 



2,066 



2,342 



2, 530 



2,809 



2,913 



o 



3,143 



Per- 

 cent- 

 age of 

 total 



run 



0.2 

 .7 



5.6 

 10.0 

 17.3 

 24.5 

 28.0 

 31.1 

 30.1 

 44.4 

 62.1 

 59.5 

 65.7 

 74.5 

 80.5 

 89.4 

 92.7 



1922 



Num- 

 ber of 

 fish in 

 thou- 

 sands 



10 

 23 



96 



145 

 228 

 264 

 303 

 345 

 394 

 452 

 502 

 561 

 637 

 704 

 833 

 956 

 978 

 994 

 1,024 

 1,058 

 1,058 



Per- 

 cent- 

 age of 

 total 



run 



0.9 

 2.2 



9.1 

 13.7 

 21.6 

 25.0 

 28.7 

 32.6 

 37.3 

 42.7 

 47.5 

 53.1 

 60.2 

 66.6 

 78.8 

 90.4 

 92.5 

 94.0 

 96.8 

 100.0 

 100.0 



Num- 

 ber of 

 fish in 

 thou- 

 sands 



1 



73 



102 



212 



348 



423 



448 



490 



554 



662 



791 



854 



961 



1,022 



1,105 



1,260 



1,331 



1, 351 



1,414 



1,423 



1,425 



Per- 

 cent- 

 age of 

 total 

 run 



0.1 



5.1 

 7.2 

 14.9 

 24.4 

 29.7 

 31.4 

 34.4 

 38.9 

 46.5 

 55.5 

 59.9 

 67.4 

 71.7 

 77.5 

 88.4 

 93.4 

 94.8 

 99.2 

 99.9 

 100.0 



Num- 

 ber of 

 fish in 

 thou- 

 sands 



5 



91 



257 



427 



548 



637 



703 



772 



862 



955 



1,027 



1, 123 



1,211 



1.375 



(') 



2,000 



Per- 

 cent- 

 age of 

 total 

 run 



0.2 

 4.6 



12.8 

 21.4 

 27.4 

 31.8 

 35.2 

 38.6 

 43.1 

 47.8 

 51.4 

 56.2 

 60.6 



Num- 

 ber of 

 fish in 

 thou- 

 sands 



30 

 63 

 83 



346 



599 



713 



789 



824 



875 



1,006 



1,391 



1,661 



1, 829 

 2,011 

 2,291 



2, 367 

 2.705 

 2,757 

 2.940 

 2,944 



Per- 

 cent- 

 age of 

 total 

 run 



1.0 

 2.1 

 2.8 

 11.8 

 20.3 

 24.2 

 26.8 

 28.0 

 29.7 

 34.2 

 47.2 

 56.4 

 62.1 

 68.3 

 77.8 

 80.4 

 91.9 

 93.6 

 99.9 

 100.0 



1926 



Num- 

 ber of 

 fish in 

 thou- 

 sands 



81 

 561 

 998 

 1,125 

 1,406 

 1,561 

 1,619 

 1,715 

 1, 872 

 2,100 

 2.415 

 2.753 

 3,010 

 3,530 

 3,894 

 4,348 

 4,783 

 4,844 

 4, 853 

 4,897 

 4,920 



Per- 

 cent- 

 age of 

 total 



run 



1.6 

 11.4 

 20.1 

 22.9 

 2S.6 

 31.7 

 32.9 

 34.9 

 38.0 

 42.7 

 49.1 

 56.0 

 61.2 

 71.7 

 81.2 

 88.4 

 97.2 

 9S.5 

 98.6 

 99.5 

 100.0 



Week ending- 



May 24. . 

 May 31.. 

 June 7... 

 June 14-. 

 June 21-. 

 June 28. . 

 July 5... 

 July 12.. 

 July 19.. 

 July 26. . 

 Aug. 2— 

 Aug. 9... 

 Aug. 16.. 

 Aug. 23.. 

 Aug. 30-. 

 Sept. 6.. 

 Sept. 13. 

 Sept. 20. 

 Sept. 27. 

 Oct. 4... 

 Oct. II.. 

 Oct. 18.. 



Number 

 of fish 



in thou- 

 sands 



Percent- 

 age of 

 total 

 run 



(1.6 

 3.9 

 17.1 

 29.0 

 36. 5 

 42.8 

 47.7 

 50.3 

 52.6 

 56. 1 

 64. 5 

 72.9 

 78.0 

 82.2 

 86.8 

 90.2 

 94.9 

 94.9 

 99.5 

 100.0 



Number 

 offish 



in thou- 

 sands 



14 



106 



470 



653 



753 



869 



934 



1,000 



1,088 



1,215 



1.350 



1,517 



1. 686 



1,770 



1.877 



1,968 



2,006 



2, 039 



2,010 



2, 080 



2, 095 



Percent- 

 age of 

 total 

 run 



0.7 

 7.9 

 22.4 

 31.2 

 35. 9 

 41.5 

 44.6 

 47.7 

 51.9 

 58.0 

 64.4 

 72.4 

 80.5 

 84.5 

 89.6 

 9:1 ;i 

 95.8 

 97.3 

 97.4 

 99.6 

 100.0 



1929 



Number 

 of fish 



in thou- 

 sands 



1 



70 



162 



282 



386 



415 



445 



476 



503 



548 



603 



657 



732 



801 



837 



947 



1,041 



1,055 



1,128 



1,128 



Percent- 

 age of 

 total 

 run 



0.1 

 6.7 

 14.4 

 25.0 

 34.2 

 36.8 

 39.5 

 42. 2 

 44' 6 

 48.6 

 53.5 

 58.2 

 64.9 

 71.0 

 74.2 

 84.0 

 92.3 

 93.5 

 100.0 

 100.0 



1930 



Number 

 of fish 



in thou- 

 sands 



44 



66 



295 



331 



412 



432 



450 



480 



549 



655 



718 



817 



823 



942 



l.OOS 



1,070 



1,207 



1.208 



1,254 



Percent- 

 age of 

 total 

 run 



0.2 

 3.5 

 5.3 

 23.5 

 26.4 

 32.9 

 34 4 

 35.9 

 38.3 

 43.8 

 52.2 

 57.3 

 65.2 

 65.6 

 75.1 

 80.4 

 85.3 

 96.3 

 96.3 

 100.0 



1931 



Number 

 of fish 



in thou- 

 sands 



13 

 63 

 177 



274 



352 



421 



444 



488 



542 



629 



727 



787 



880 



1,003 



1,105 



1,374 



1,441 



1,547 



1,612 



1,625 



Percent- 

 age of 

 total 

 run 



0.8 

 3.9 



10.9 

 16.9 

 21.7 

 25.9 

 27.3 

 30.0 

 33.4 

 38.7 

 44.7 

 48.4 

 54.2 

 61.7 

 68.0 

 84.6 

 88.7 

 95.2 

 99.2 

 100. 



See footnote at end of table. 



