PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1934 407 



A hatchorv build inj:: previously constructod at (Jroho Lake was usod 

 for tlic incul)ation of p:rayliiip: osxsrs. Over 2,000,000 of^<;s of tliis spocios 

 woiv secured and yielded the unusually hicch percentafi:e of hatch of 

 94.4 percent. Auxiliary reariuix ponds were maintained at Mam- 

 moth Hot Springs, at which point 183,000 rainbow trout fmo;erlin<2;s 

 were produced. It was reported that the catch of fisli in Yellowstone 

 Park increased approximately 10 percent over the previous year. 



The collection of rainbow trout egp;^ from brood stock at the Spring;- 

 ville (Utah) station was sliijhtly more than half the take of the previous 

 year, owins; to tlie.fact that the older fish are being discarded and a 

 new brood stock is beino; built up. A few largemouth bass were 

 produced at the hatchery in a small pond developed for this purpose. 

 This station enjoyed the benefit of P. W. A. and C. W. A. allotments 

 which permittiHl the construction of a concrete raceway nearly GOO 

 feet in length for the improvement of the main water supply. It was 

 also possible to effect other improvements, particularly to the grounds. 



At the Bear Lake (Utah) substation special allotments permitted 

 the construction of 3 concrete and 2 natural dirt rearing ponds. These 

 could not be placed in use because of the construction of a new dam 

 which affected the water supply. One million three hundred .seventy- 

 five thousand eggs were handled at this point and a satisfactory pro- 

 duction and distribution was achieved from this source. 



The Spearfish (S. Dak.) station had a very successful season with 

 an output a])proximating the highest previous records. Extensive 

 improvements to the grounds and buildings were placed in effect hj 

 virtue of a C. W. A. allotment. Probably the most important 

 accomplishment was the construction of new rearing ponds and the 

 improvement of old ones. Water-supply difficulties at this point were 

 overcome by the laying of a pipe line to connect with the citv^ water 

 line. 



The Saratoga (Wyo.) station also experienced one of the best seasons 

 in its history as far as the output of fish is concerned, although the 

 total collections of eggs were reduced as a result of discontinuing one 

 of the field egg-collecting stations. It was possible to increase the 

 take of eggs from the trout brood stock held at the station. Here, too, 

 special allotments from the Federal relief organizations permitted 

 extensive improvements including the painting of buildings, installa- 

 tion of curb and gutters, and improvements to drives as well as the 

 construction of about GOO feet of stone wall along the creek running 

 through the station grounds. The program for landscaping this 

 station was continued with over 525 trees having been planted and 

 much of the brush being removed. 



In the Colorado territory, the Leadville station was operated along 

 the usual lines. Among the improvements were the lowering of the 

 ceiling in the hatching room so as to economize on heating. The pond 

 system was overhauled and a new water-supply intake dam was con- 

 structed to feed the Crystal Lake auxiliary project. 



The Creede (Colo.) substation increased its usefulness and impor- 

 tance in spite of depicted funds. Work was started on the erection of a 

 new dwelling at this substation. 



The Dexter, N. Mex., station propagates no trout in contrast with 

 other stations in this field but serves an important territory where 

 there is a heavy demand for pond fish, particularly bass. Due to fall 

 in the water supply, it was necessary to undertake the distribution of 



