REPORT OF THE COMMISSIONER OF FISHERIES. 15 
duce 91 per cent of fry. A consignment of 50,000 blueback-salmon 
eggs from the Yes Bay collections was transferred to this station 
during the fall with the view of utilizing the young fish hatched 
therefrom in marking experiments. 
From the entire stock on hand 16,580,946 vigorous fry were 
Te ok most of which, owing to lack of rearing facilities, had to 
e liberated before the absorption of the yolk sac. Incidental to the 
work with this species, small numbers of eggs of the chinook and 
silver salmons were taken, hatched, and distributed, the output of 
fry from both lots amounting to 135,924. 
Coming now to the Oregon field, it may be noted that for the first 
time in some years all natural conditions on the Clackamas River 
were favorable for chinook-salmon work, and during the spawning 
season, which extended from September 23 to November 17, eggs in 
excess of 10,000,000 were collected, the take being nearly two and a 
half times larger than in the previous year. Two millions of these 
were transferred to the upper Clackamas hatchery with the view of 
rearing the resulting fry and planting them in the headwaters of that 
river. Of those hatched at Clackamas station, 2,500,000 were 
planted on the absorption of the food sac and the remaining 1,500,000 
were fed until April and then liberated, both lots being returned to 
the spawning grounds from which the eggs were secured. As at the 
other Pacific stations, the principal food used was the flesh of salted 
salmon, 8 tons’of which had been prepared in advance. 
Fishing operations on the upper Clackamas were almost imprac- 
ticable, owing to the absence of : saci water at the foot of the fishway 
dam, and while there was a fair run of salmon in sight only 24,000 
eges were secured. 
The collection of chinook eggs on tributaries of the Columbia 
River amounted to nearly 50,000,000, over two-thirds of them being 
taken on the Little White Salmon River. As the station on that 
stream is equipped for handling only about 25,000,000 eggs, the sur- 
se of 9,000,000 was utilized in fully stocking the hatchery on the 
ig White Salmon, where collections of 13,200,000 eggs had been 
made. The eggs at both points were hatched with normal losses, 
and the combined output aggregated 43,822,000 fish, of which 
6,670,665 were fingerlings. 
Nearly 6,000,000 chinook eggs were taken at the Rogue River sta- 
tion, and 1,000,000 of these were supplied to the Oregon State Fish 
Commission. From the remainder there was an output of 1,952,000 
fry and 1,550,037 fingerling fish. Steelhead-trout eggs to the num- 
ber of 405,700 were collected from this river during the spring, and 
more would have been secured had not the high water permitted 
many of the impounded fish to escape. Of the cutthroat trout, which 
ran with the steelheads, a few fish were secured that yielded 23,000 
eges. 
“On the tributary stream at Applegate Creek 601,000 chinook and 
782,500 silver-salmon eggs were obtained and handled with the usual 
mortality, and during the spring 4,148,000 steelhead eggs were taken. 
In the operations with this latter species very successful use was 
made of a section of irrigation ditch for impounding partly ripe fish, 
permission haying first been obtained from the owners of the prop- 
erty. In connection with the work at this point a small number of 
