PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1921. 53 



YELLOWSTONE PARK ( WYO. ) SL"BSTATION. 



The spawning season of the blackspotted trout in the Yellowstone 

 Park involves portions of two fiscal years. At the beginning of the 

 fiscal year 1921 there were on hand in the hatchery 850,000 eggs which 

 had been collected in June, and this nimiber, added to the total ob- 

 tained in July, gave an aggregate collection of 6,430,400 for the sea- 

 son. During the spring of 1921 the season was late, as at the Meadow 

 Creek auxiliary station, and ice was still in Yellowstone Lake at the 

 arrival of the spawning crews on June 10. The first eggs were taken 

 at Fish Lake, near Soda Butte, on June 19, and at the close of the 

 fiscal year the total egg collection numbered 1,747,500, of which 

 829.600 were obtained from Fish Lake and the remainder at different 

 points on Yellowstone Lake. All eggs taken during the year were of 

 excellent quality. The usual limited numbers were assigned to va- 

 rious State fish and game commissions, and smaller numbers were 

 diverted for stocldng the waters of the Glacier National Park. The 

 remaining eggs were incubated at the lake hatchery, and fry to the 

 numl)er oif 2.012,400 were distributed in Yellowstone Park waters, 

 the park superintendent cooperating in the distribution. 



GLACIKK PAKK (MONT.) SUBSTATION. 



From the Glacier Park hatchery, which was in operation for a 

 period extending from June 13 to September 17, 1921, there were 

 distributed in park waters 2,035,()0() fry and fingerling grayling, 

 brook, rainbow, and l)lacks])otted trout, with approximately 445,000 

 grayling and rainbow-trout fry on hand at the close of the fiscal year. 

 The rainbow trout were derived from the Madison Valley egg collec- 

 tions and tlie blackspotted trout from the Yellowstone Park. For 

 the grayling and the brook trout the bureaii is indebted to the Mon- 

 tana Fish and Game Commission, and grateful acknowledgment of 

 this cooperative assistance is hereby made. As in the Yellowstone 

 Park distributions, officers of the national park service rendered val- 

 uable assistance in transporting the fish to suitable points for 

 planting. 



LEADVILLE (cOLO.) STATION. 

 [Charles R. Orater, Superintendent.] 



The output of fry' and fingerling fish from this station was smaller 

 than usual because of certain conditions affecting the efif!^ collections 

 at two imp(jrtant sources. Low water at Turquoise Lake exposed 

 tlie customary spawning beds of the trout, and attempts to take the 

 fish by seines and fyke nets at other probaljle spawning j)oints were 

 not altogether succe.ssful. Similar conditions existed at Engelbrecht 

 Lake, where further difficulties were experienced also in the matter 

 of transportation. The aggregate total of brook-trout eggs obtained 

 from the collecting fields occupied was 4,305,400. This station also 

 handled 1.209,000 blackspotted-trout eggs transferred from the Yel- 

 low.stone Park field, 130,000 rainbow-trout eggs from the stations in 

 Wyoming and Utah, and 25,000 lake-trout eggs shipped from Mich- 

 igan. 



The F><'ad\ille station has for a number of years been a})le to suc- 

 cessfully operate field stations at a number of privately owned lakes 



