64 U. S. BUREAU OF FISHERIES. 



The results attained in the fish-cultural work were quite satisfac- 

 tory, there being no disease among the stock and no abnormal losses. 

 Brook, Loch Leven, and rainbow-trout eggs totaling 1,159,400 were 

 incubated, from which 968,000 fiy were hatched, the percentage of 

 hatch being nearly 8Sh 



Of the brook-trout eggs handled 262,100 were collected from wild 

 fish secured in local streams, 259,600 were transferred from the 

 Springville (Utah) station, and 500.000 were obtained through ex- 

 change, the South Dakota fisheries authorities turning over to the 

 station 500,000 eggs that had been purchased by the State from a 

 commercial establishment in Pennsylvania, with the understanding 

 that the State would be furnished an equal number of rainbow-trout 

 eggs from another station of the bureau. These commercial eggs 

 Avero of fine quality and the fry resulting from them were so excep- 

 tionally healthy and vigorous that 100,000 of them were selected and 

 successfully used in the conduct of an experiment made for testing 

 the comparative value of a certain commercial brand of fish food. 

 The year's distribution of brook trout consisted of 792,445 finger- 

 lings No. ItV, and 19.465 were on hand at the end of June. 



Nearly 65.000 Loch Leven trout eggs were taken during the fall — 

 12.300 from wild fish secured in connection with the brook-trout egg 

 collection and the remainder from domesticated fish in the station 

 ponds. During January 10,350 were shipped in the eyed stage to 

 the St. Johnsbury (Vt.) station, and the young fish hatched from 

 the remainder will be reared for increasing the station brood stock. 



From domesticated rainbow trout held in the station ponds 72,900 

 eo-gs were taken, the spaAvning season extending from January 22 to 

 May 9. Of the resulting fingerlings 35.360 were delivered to ap- 

 plicants late in Jure. The remainder of the lot was retained for later 

 distribution. 



The work at this station also included the handling of 50.935 steel- 

 head-salmon eggs furnished from the Washougal (Wash.) field. 

 This lot was hatched with a loss of about 7 per cent, and all of the 

 resulting fry were being held at the close of the year for distribution 

 in the fingerling stage. 



SPRI]SrGAT:LLE (UTAH) STATION. 



[Claddius Wallich, Superintendent.] 



Fish-cultui'al work at this station was confined to the propagation 

 of brook and rainbow trout, the output of which was considerably 

 reduced in comparison with the output last year owing to the limita- 

 tions imposed upon the bureau's operations in the Fish Lake field. 

 Cooperative work between the bureau and the State was undertaken 

 in this region in late October. On arrival there it was found that 

 large numbers of brook trout had already assembled below the mouth 

 of Twin Creeks, where most of the collections are made, but were 

 prevented from entering the stream on account of the unusually 

 low water level in Fish Lake. This condition was remedied by en- 

 Inrging and deepening the mouth of the stream, after which racks 

 and traps were installed. Spawn taking began on October 27, and 

 from that date to the end of November eggs were taken almost daily. 



