PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1926 361 



the whole. Eyed eggs to the number of 1,143,500 were transferred to the 

 Bozeman and Glacier Park hatcheries; Hie remainder were incubated locally 

 and the product used for restocking .Madison Valley waters. 



Glacier Park (Mont.) substation. — The large number of black-spotted trout 

 fingerlings on hand at the opening of the fiscal year were planted during 

 July and August in the waters of Glacier Park by local park officials, together 

 with the considerable numbers of rainbow trout and grayling fry turned over 

 to them as part of the product of the hatchery at this point. During May and 

 June 1,486.000 green black-spotted trout eggs were received from the Montana 

 Fish and Game Department, 350,000 of which were planted in the headwaters 

 of some of the more inaccessible streams in the park ; the remainder were on 

 hand at the end of the fiscal year. The substation also received 519,520 

 rainbow-trout eggs from the Meadow Creek field and 1,075,000 green grayling 

 eggs from one of the Montana State hatcheries. The product of the latter 

 lot was delivered to Glacier Park officials for distribution in waters adapted 

 to that species, while the fry hatched from the rainbow-trout eggs were carried 

 over into the new year. 



Leadville (Colo.) Station 

 [C. H. Van Atta, Superintendent] 



All brook-trout eggs handled at this station are obtained from privately 

 owned lakes or reservoirs, collections being made on a percentage basis. 

 Heretofore five egg-collecting fields have been occupied, but last year, owing to 

 a decision of the parties in control to allow outside interests to make collec- 

 tions in Carroll Lakes, Woodland Park, only four sites were covered. From 

 these four 5,955,000 eggs were secured, about 50,000 less than the preceding 

 year's total. The cost of collecting the green eggs varied from 1% cents per 

 thousand at Wurtz Lake to 20 cents per thousand at Turquoise Lake, the 

 average for all fields being 6 cents. The wide variation between the two 

 fields named is due to the fact that at Wurtz Lake all fish are seined by 

 the owner and held in ponds awaiting the collection of the eggs by the bureau's 

 employees, while at Turquoise Lake the fish must be seined from the lake by the 

 bureau's men, which requires the full time of two station employees. In this 

 connection great difficulty frequently is encountered, as the lake is liable to 

 freeze over early in the season, and then the fish must be secured by seining 

 for them under the ice. 



At Engelbrecht Lakes the eggs are collected and cared for during the incuba- 

 tion period on a 30-70 basis. The owner furnishes board and lodging for the 

 spawn taker and receives as his share 30 per cent of the resulting fry, the 

 delivery being made at his nearest railroad station. All eggs from this field 

 formerly were forwarded to the hatchery by train, but in the fall of 1925 the 

 transfers were made by auto truck over a recently constructed highway until 

 such time that it became blocked with snow. The attendant losses under the 

 new method were greatly reduced, being less than half as large as those sus- 

 tained during the previous year. 



With the view of developing an egg-collecting field for rainbow-trout spawn, 

 plants of fish of that species have been made in Baker Lake for the past four 

 years, about 98 miles distant from the hatchery. This field station was worked 

 for the second time in May, 1926, the yield* of eggs amounting to 181,300. 

 Bolts Lake, another rainbow-trout project, is being stocked annually with 

 fingerling fish under a 10-year agreement, in accordance with the terms of 

 which the bureau will receive 70 per cent of the eggs derived from its waters. 

 From 356,000 black-spotted trout eggs received from the Yellowstone Park 

 during the summer of 1925, 320.500 No. 1 fingerling fish were produced and 

 distributed in waters in Colorado and New Mexico. In the course of the year 

 the station handled 30.000 lake-trout eggs, received from the Duluth (Minn.) 

 hatchery, 25.000 steelhead salmon eggs forwarded from the Birdsview (Wash.) 

 field, and 50,000 rainbow-trout eggs, shipped from the Saratoga (Wyo.) sta- 

 tion. All of these were received in excellent condition, and the fry resulting 

 from them were still on hand at the close of the year. 



