SALMON AND TROUT TN ALASKA. 47 



may be true also of the king salmon, but it is not believed, from the 

 observations on the Columbia, that the king spawns above the lakes 

 ordinarily, hence only the wandering young would w^nter in them. 



DOG SALMON. 



The dog-salmon young, so far as known, all leave the fresh water 

 as soon as they are able to swim. The records of the occurrence of 

 larger individuals in streams have not been authenticated. The 

 dog-salmon fingerlings reported in the rivers of Washington by Gil- 

 bert and Evermann^ on later examination were found to be cohos. 

 A similar find by Davis* likewise proved erroneous. 



This species breeds in the Naha in too limited numbers to permit 

 observations of value. Fr}^ were taken in only two instances at sta- 

 tion 2. A few were taken at station 1 the middle of April, and again 

 in Gibson and Emma creeks the middle of May. They were found 

 in abundajice, however, running out of the creeks of Deep (Moser) 

 Bay, April 30, temperature 37°, many of them still with remnants of 

 yolk. A few were found in Steelhead Creek after May 7 and up to 

 June 6. In the main their fresh-water habit seems identical with 

 that of the humpback. 



Early in June, 1903, immense schools of small fmgerling dog salmon 

 were seen leaving the Karta River. Examples taken on the 8th of 

 that month about the margins of the upper Kasaan Bay average 

 about 40 mm. They were feeding on insects. It was reported by 

 the workmen building the Alaska Packers' Association trap at that 

 point that shoals of these young could be seen at times well out in the 

 bay, where the}^ were pursued by larger fish, apparently Dolly Varden 

 trout. The great number of adult dog salmon spawning in the Karta 

 River makes this easily credible. 



In the Karluk lagoon, 1903, fry and small fingerlings were ob- 

 served in large numbers May 12-14. They lay close inshore by the 

 spit, moving about in schools, but not going out with the tide. Some 

 of these still contained yolk, others were feeding on insect larvae, 

 amphipods, and surface material. Slightly larger young were taken 

 in the lagoon June 9-12, feeding on crustaceans and insects. June 18 

 they were noted as abundant outside on Karluk Beach, 6 taken 

 averaging 50 mm. in length ; the}^ were feeding on insects, crustaceans, 

 and small cottoids. July 24 neither dog nor humpback young were 

 present among the examples taken in a seine haul in the lagoon, all 

 apparently having sought the sea. (See p. 52.) 



« Gilbert and Evermann, Bulletin U. S. Fish Commission, vol. xiv, 1894, p. 198. 

 b Davis, Pacific Fisherman, vol. i, no. 4, May, 1902, p. 9. 

 10731—07 4 



