52 U. S. BUREAU OF FISHERIES. 
ROCKY MOUNTAIN TROUT STATIONS. 
BOZEMAN (MONT.) STATION AND SUBSTATIONS. 
[W. T. THOMPSON, Superintendent. } 
Although the cold, stormy weather of winter was unduly pro- 
tracted, inter fering with fish-cultural work into the late sprin 
months, a satisfactory season is to be recorded in this field. With 
Bozeman station as headquarters an auxiliary station is operated at 
Meadow Creek, in the Madison Valley, and substations in the Glacier 
National Park and the Yellowstone Park. 
BOZEMAN (MONT.) STATION. 
Fish-cultural work at the Bozeman station was confined to the in- 
cubation of eggs transferred from other points, these transfers 
amounting to 1,357,200 rainbow-trout eggs from Meadow Creek, 
1,236,400 blackspotted- trout eggs from Yellowstone Park, and brook- 
trout eggs from the Springville and Leadville stations in the num- 
bers of 350,000 and 782,000, respectively. Part of the rainbow-trout 
eggs were shipped to applicants and other stations; the remainder 
were hatched and distributed as fry and fingerlings to fill the de- 
mands for them in Montana, Wyoming, Idaho, Washington, and 
Oregon. Approximately 800,000 fry of the rainbow trout and black- 
spotted trout remained on hand at the close of the fiscal year. 
MEADOW CREEK (MONT.) AUXILIARY STATION. 
The Meadow Creek egg-collecting or auxiliary station was opened 
on April 9. The weather throughout the spring was cold and stormy, 
and there was no clearly defined run of fish, as is the case under more 
favorable conditions. The first rainbow trout appeared at the rack 
early in April, and the run continued at intervals up to June 10, 
during which period 2,273,000 eggs were taken. Of this number 
1 B57 2 00 were sent to the Bozeman station. The eggs taken during 
the latter half of the spawning season were of poorer quality than 
usual, probably because of the turbid water, which was materially 
affected by the storm conditions. The results of hatching, were there- 
fore disappointing, and of those retained for stocking home waters 
only 300,000 fry were realized. Near the close of the fiscal year 
500,000 blackspotted- trout eggs were received at the Meadow Creek 
hatchery from the State hatchery at Anaconda, and these, with 
30,000 rainbow- trout fry, were on hand June 30. 
Mixed in with the rainbow-trout run were a limited number of 
erayling, though not sufficient to warrant spawn taking. The fish 
appeared to have been driven into the lake by the soft ice in the 
stream shortly after their appearance at the racks, the grayling evi- 
dently being very susceptible to influences of this kind. In recent 
years erayling have deserted the Meadow Creek spawning grounds, 
to which they formerly ascended in considerable numbers every 
spring. Whether or not the successful establishment of the rainbow 
trout therein is responsible for the abandonment of the stream by the 
grayling is conjectural, but the present spawning grounds of the fish 
in the region are unknown, though several attempts have been made 
to locate them. 
