288 



BULLETIN OF THE BUREAU OF FISHERIES. 



I'nliko the sockeye, this salmon does not refuse to enter streams whieh have no lakes in their head- 

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

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

 aliove 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 uK'asurements and weights are shown in the table which follows: 



Lengths and Weights of Humpback Salmon. 



Locilitv and date. 



Shipley Bar (.Vug. 24) 



Bear Harbor 



Port Ellis. Home Stearn (.Vug. 22i. 



Sukkwan (Aug. 28) 



Hunter Bay (Aug. 28) 



Funter Bay (.1 uly 23) 



Do 



Yakutat (.Vug. l.S) 



Litnik Bay (Aug. 3) 



Klawak 



Cleveland Passage (.luly K!) 



Yes Bay (.Tuly 17) 



Kegan (.Vug. 16) 



Nowiskay (.Vug. 19) 



Quadra (.Vug. 6) 



Karta (July 26) 



Karta (Aug. 2, 1904) 



Scowl .Vnn (.Vug. 21 



Wood River (July 19) 



Nushagak River (July 22) 



Num- 

 ber 

 exam- 

 ined. 



57 

 59 

 30 

 70 

 44 

 56 

 42 

 59 

 35 

 65 

 92 

 IDS 



It 

 4 

 7 

 40 

 10 

 .53 

 97 

 28 



.52 

 41 

 59 

 41 

 59 

 97 

 108 

 61 

 91 

 .50 

 15 

 .50 

 20 

 4 

 5 

 62 

 30 



Length. 



Maxi- 

 mum. 



Inches. 

 26.00 

 23. 75 

 26.75 

 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 



21.25 

 20.75 

 24.00 

 20.75 



Mini- 

 mum. 



Inches. 

 19.25 

 19.5 

 20.75 

 18.25 

 20.00 

 17.00 

 19.00 

 19.00 

 21. 75 

 19. 5 



22.00 

 21.00 



23.00 

 20.00 

 20.00 

 20.00 



19.00 

 18.75 

 19.00 

 18. 25 



Inches. 



22. &5 



22.20 



22! 99 



23.87 



23.25 



21.60 



22.47 



2LS0 



24.33 



22.43 



j-21.89 



23.61 



22.87 



24.25 



22.3 



21.9 



21.00 



24.80 



23.21 



22.50 



22.86 



Weight. 



Average for all. 



Maxi- Mini- 

 mum, mum. 



21.062 

 19.5 

 21.487 

 20.00 



Lbs. 

 6.00 

 4.5 

 7.00 

 5.75 

 7.00 

 5.50 

 7.00 

 5.5 

 7.00 

 6.00 



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 

 6.76 

 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 

 3.6 

 3.00 

 2.5 

 3.00 

 3.5 

 3.00 

 2.75 

 3.25 

 .2.5 

 2.S 

 3.25 

 2.5 

 3.25 

 2.00 

 2.00 

 2.5 

 2.5 



Aver- 

 age. 



Length. 



Lbs. 

 3.97 

 3.65 

 4.63 

 3.73 

 4.26 

 3.91 

 4.02 

 3.86 

 5.24 

 4.28 



4.16 



5.57 



4.36 



6.5 



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 



Inches. 

 \ 22.42 



I 23.25 



22.33 



\ 22.13 



\ 23.09 



j- 23.17 

 \ 23.00 

 \ 21.6 

 I 23.78 

 22.46 



} 



Weight. 



Pounds. 

 3.77 



4.00 



4.06 



3.93 



4.62 



I 19.972 

 } 21.004 



4.83 



4.64 



3.8 



4.84 



4.77 



6.9 



4.7 



4.7 



6.2 



4.7 



4.55 



4.7 



2.333 



3. 809 



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

 The average weight was 6.8 pounds, the average length 24 inches. At the cannerj' 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 the 

 lengths are not given) it appears that the largest male humpl^ack 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 

 weight 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 441 females, 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. 

 The examples weighed by Mr. Chamberlain at various jjlaces in 1903 and 1904 appear to be somewhat 

 heavier than those examined by us. The 11. .5-pound male weighed liy him at Yes Bay, July 17, is 3.5 

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



