238 



BULLETIN OF THE BUREAU OF FISHERIES. 



Unlike the sockeye, this salmon does not refuse to enter streams which have no lakes in their head- 

 waters. It seems to be entirely indifferent as regards this stream character; it selects its spawning beds 

 in streams with orwithout lakes in their course. If in a stream with lakes, the beds maybe in the stream 

 above the lake, below the lake, or even in the lake itself. If there be one essential feature, aside from 

 temperature, it is probably that the stream must be a relatively small one. 



The humpback is the smallest of the 5 species of Pacific coast salmon. The results of a large number 

 of measurements and weights are shown in the table which follows: 



Lengths and Weights of Humpback Salmon. 



Locality and date. 



Shipley Bay (Aug. 24) 



Bear Harbor 



Port Ellis, Home Steam (Aug. 22). 



Sukkwan (Aug. 28) 



Hunter Bay ( Aug. 28) 



Funter Bay (July 23) 



Do 



Yakutat (Aug. IS) 



Litnik Bay (Aug. 3) 



Klawak 



Cleveland Passage (July 13) 



Yes Bay (July IT) 



Kegan (Aug. 16) 



Nowiskay (Aug. 19) 



Quadra (Aug. 6) 



Karta (July 26) 



Karta (Aug. 2, 1904) 



Scowl Ann (Aug. 2) 



Wood River (July 191 



Nushagak River (July 22) 



Num- 

 ber 

 exam- 

 ined. 



57 

 59 

 30 

 70 

 44 

 56 

 42 

 59 

 35 

 65 

 92 

 108 

 7 

 11 

 4 

 7 

 40 

 10 

 53 

 97 

 28 

 7 

 71 

 52 

 41 

 59 

 41 

 59 

 97 

 108 

 61 

 91 

 50 

 15 

 50 

 20 

 4 

 5 

 62 

 30 



Sex. 



Length. 



Maxi- 

 mum. 



Inches. 

 26.00 

 23.75 



a;. r.-> 



24.25 

 26.50 

 24.00 

 25.75 

 23.75 

 26.75 

 25.00 



27.00 

 23.00 



27.00 

 25.00 

 25.25 

 24.00 



Mini- 

 mum. 



Inches, 



19.25 



19.5 



20.75 



18.25 



20.00 



17.00 



19.00 



19.00 



2) 75 



19.5 



21.25 

 20. 75 

 24.00 

 20.75 



22.00 

 21.00 



23.00 

 20.00 

 20.00 

 20.00 



19.00 

 iv 75 

 19.00 

 18.25 



Aver- 



Inches. 



22.65 

 22.20 

 22. 99 

 23.87 

 23.25 

 21.60 

 22.47 

 21.80 

 24.33 

 22.43 



(-21.89 



23.61 



22.87 



24.25 



22.3 



21.9 



21.00 



24.80 



23.21 



22.50 



22.86 



21 002 

 19.5 

 21.487 

 20.00 



Weight. 



Maxi- 

 mum. 



Lbs. 

 6.00 

 4.5 

 7.00 

 5.75 

 7.00 

 5.50 

 7.00 

 5.5 

 7.00 

 6.00 



Mini- Avex- 

 nium. age. 



6.00 

 5.00 



8.00 

 6.00 

 8.00 

 5.5 



11.5 

 7.5 

 7.75 

 6.00 

 9.00 

 5.5 

 8.5 

 7.00 



10.00 

 6.75 

 7.00 

 6.00 

 7.5 

 5.25 

 2.5 

 3.00 

 6.00 

 4.25 



Lbs. 

 2.25 

 2.00 

 3.00 

 2.00 

 2.50 

 2.00 

 2.75 

 2. .50 

 4.00 

 2.5 



5.00 

 3.00 



4.00 



2.00 



2.00 



3.00 



2.75 



3.5 



3.00 



2.5 



3.00 



3.5 



3.00 



2.75 



3.25 



2.5 



2.5 



3.25 



2.5 



3.25 



2.00 



2.00 



2.5 



2.5 



Lbs. 

 3.97 

 3.55 

 4.63 

 3.73 

 4.26 

 3.91 

 4.02 

 3.86 

 5.24 

 4.28 

 4.16 



5.57 



4.36 



5.5 



4.14 



3.9 



3.7 



5.66 



4.39 



4.85 



4.42 



7. 7 



5.9 



5.1 



4.4 



5.1 



4.5 



5.65 



4.8 



5.3 



4.4 



4.8 



4.4 



4.8 



4.6 



2.375 



2.3 



4.032 



3.35 



Average for all. 



Length. Weight 



Inches. 



| 22.42 



\ 23.25 



| 22.33 



\ 22.13 



\ 23.09 



23.17 

 23.00 

 21.6 

 23.78 

 } 22. 46 



rounds. 

 3.77 



4.00 



4.06 



3.93 



4.62 



j. 19. 972 

 1 21.004 



4.83 



4. 64 



3.8 



4.84 



4.77 



6.9 



4.7 



4.7 



5.2 



4.7 



4.55 



4.7 



2.333 



.; son 



Three dozen humpback salmon (both sexes) were weighed at the cannery at Wrangell, July 13. 

 The average weight was 5.8 pounds, the average length 24 inches. At the cannery of the Thlinket 

 Packing and Trading Company, July 23, 30 fish (both sexes) gave an average weight of 4.2 pounds 

 and an average length of 24.46 inches. 



A male humpback taken in a gillnet in Yes Bay, July 9, was 25 inches long and weighed 7 pounds. 



From the above (omitting those weighed in 1903 and 1904 by Mr. Chamberlain, for which tin' 

 lengths are no1 given l it. appears that the largest, male humpback examined was 27 inches in total length 

 and that the maximum weight was 8 pounds. The smallest male was 19 inches long and the minimum 

 weigh! 2 pounds. The largest female was 25 inches long and the heaviest weighed 5.5 pounds. The 

 smallest female was 17 inches long and the minimum weight was 2 pounds. The average of 341 males 

 was in length, 23. 19 inches, in weight 4.3 pounds; of 11 1 femaleB, length 22.59 inches, weight 4 pounds. 

 The average length of the 782 fish (both sexes) was 22.64 inches, and the average weight 4.13 pounds. 

 Tin- examples weighed by Mr. Chamberlain at various places in 1903 and 1904 appear to be somewhat. 

 heavier than those examined by us. The 1 1 .5-pound male weighed by him at Yes Bay, July 17. is :;.."> 

 pounds heavier than any examined by us. And the heaviest, female (7.5 pounds) examined by him 



