52 FISHEEIES OF ALASKA, 1908. 



playing in schools of various sizes along a considerable stretch of 

 beach to the edge of the ice, which even at that date still covered the 

 whole upper end of the lake above the mouth of the main inlet. All 

 were free-swimming fry whose sacs had only recently become com- 

 pletely absorbed. Many thousands were in sight very close to the 

 beach, so that a few could be taken by wading along shore and scoop- 

 ing quickly at the schools with a dipper. They were too small to be 

 taken in the seine. It seems likely that these fry had been hatched 

 in the next lake above and had been swept down to Lake Aleknagik 

 with the current. On the next visits to this beach in July and August 

 the fry, as was expected, had disappeared. 



June 27 Mr. Wallich obtained in one seine haul 70 fine specimens 

 of redfish fingerlings 3 to 4 inches long, on the north shore at the head 

 of the lagoon near the rack. This was also on a gravel beach. A 

 prior haul had been a failure, the successful set being made farther 

 from shore. The individuals were quite uniform in size and were no 

 doubt of the same season's hatching, that of the spring of 1907. 

 They were, therefore, something over 1 year old. These agree with 

 those seen by Dr. C. H. Gilbert, who says: 



* * * At Nushagak, June 3, the young, with parr marks still evident, ranging in 

 size from 95 to 115 mm., were very abundant. These were doubtless descending the 

 rivers to the sea and were probably about 20 months old. 



His specimens were about the same size as those taken by Mr. 

 Wallich. These young salmon were migrating, and were not always 

 present about the region where they were taken June 27. July 4 a 

 seine haul was without result, and no signs of their presence could be 

 discovered. The arctic terns, which feed upon them, and which were 

 in abundance June 27, had disappeared. On July 13 in hauls made 

 about a mile above the rack on a favorable gravel beach of an island 

 many adult redfish were taken, but only one young, about 5 inches in 

 length, the largest seen during the season. The same day several 

 hauls on the south shore of the lake near the rack failed to capture any 

 young. 



July 23 four distinct schools of fingerling salmon were seen by Mr. 

 WalHch between the pile driver and the shore. These schools contained 

 from 500 to 1,000 fish. A school of at least 1,000 was observed at the 

 same time on the lake side of the ark, near bottom. The fish seemed to 

 be 5 or 6 inches in length. It was Mr. Wallich's opinion that the web 

 across the lake was delaying somewhat the downstream migratory 

 movement of these young salmon. 



One lot of redfish fry of the 1907-8 hatch was taken at the foot of 

 the lake near the rack on August 3. They were 1^ to If inches in 

 length. August 4 a good many of the same fry were seen opposite 

 the Indian village at the extreme foot of the lake. Several king sal- 

 mon about 1 foot in length were caught on hook and line from the ark 

 on August 9. 



