92 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



were made in June to tag the fry that had been held, but although the 

 greatest care was exercised, all the fish experimented with died in a few 

 days. Twenty-four of them were tagged through the mouth, but with 

 the same result. The difficulty in marking such small fish lies in the 

 liability of injury to the scales and fins. Every fish, though liandled 

 very carefully with a soft linen cloth, showed white spots or finger 

 marks within 5 minutes after being returned to the water, and on the 

 following day they were covered with fungus. 



Experiments were also tried to determine how many eggs are left 

 in a salmon after being stripped by the usual process, and as to the 

 practicability of taking these through an opening in the abdomen. 

 The abdomen was opened and all of the eggs found in the ovaries 

 were washed free of blood and milt applied, but the eggs were of no 

 value. At the Rogue River station, however, very good results were 

 secured, 35,800 of the 53,200 eggs taken being successfully eyed. At 

 that point, in order to avoid possible injury to the eggs by washing, 

 Mr. Berrian bled the fish by cutting off their tails before placing them 

 in the spawning-box. The fry hatched from them appeared to be 

 as healthy and strong as the others, and it was decided that from 

 400 to 500 eggs per fish could in this manner be saved. 



Besides the quinnat-salmon eggs handled here, 150,000 eggs of the 

 silver salmon were received from the Rogue River in January, from 

 which 146,000 fry were hatched and liberated in the Clackamas. 

 One hundred thousand lake-trout eggs shipped from North ville pro- 

 duced 88,000 fry, which were held until March, and then planted in 

 suitable lakes in the State of Washington. Two shipments of white- 

 fish eggs, aggregating 1,000,000, were also received from this station. 

 The first proved a total loss, having been 8 days en route ; the other 

 yielded 160,000 fry, which were liberated in Lake Washington, King 

 County, Wash. From the 25,000 rainbow-trout eggs received from the 

 California Fish Commission 22,000 fry were distributed in Meachum, 

 Pearson, and McKay creeks, all tributaries of the Columbia River, 

 near Pendleton, Oreg. , at the request of the Oregon Fish Protective 

 Association. . On the last of May 144,000 steelhead eggs were trans- 

 ferred from the Rogue River and produced 124,000 fry. 



From Bozeman 50,000 grayling eggs were received, which produced 

 41,000 fry. 



On May 7 Mr. Downing was transferred to the superintendency of 

 the Put-in Bay station and was succeeded by Mr. E. N. Carter. 



Rogue River Station, Oregon. 



As the State Fish Commission had decided to opeVate the Upper 

 Clackamas and Salmon River stations, the superintendent visited 

 Rogue River with Mr. R. D. Hume late in July and arranged to 

 reopen the station there. Large numbers of salmon were to be seen 

 jumping, and to prevent their further ascent a rack was immediately 

 placed across the river. Fishing commenced during the latter part 



