42 



REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Leadville Station, Colorado (H. D. Dean and E. A. Tulian, Superintendents). 



The work at this station during the fiscal year was directed by H. D. 

 Deau and E. A. Tulian, superintendents, the latter relieving Mr. Dean 

 on February 7, 1895. 



BejKiirs, etc. — During the year 400 feet of 6-inch wood pipe was laid 

 from the large spring aijd connected with a 3-inch pipe to the hatchery, 

 thereby increasing the water supply to 90 gallons per minute. A new 

 waste overflow from the reservoir was also put in, the old one not 

 being adequate. A substantial fishtrap was constructed in the creek 

 connecting Upper and Lower Twin Lakes at a cost of |500 and a 

 watchman's shanty built near it. A flagpole 65 feet high was erected 

 at the station and much other work done toward improving the grounds 

 and buildings. 



The following table shows the stock of tish and eggs on hand at the 

 beginning of the fiscal year : 



Species. 



Eggs. 



Ery. 



Yearlings. 



Brook trout 



Eainbow trout 



Loch Leven trout. . . 

 Black-spotted trout . 



145, 500 



570 



2,000 



13, 500 



3,445 



1,123 

 26 

 27 

 424 



ICl, 570 



5,025 



1,600 



There were heavy and unaccountable losses of fry and adult fish 

 during the summer months. Every possible effort was made to check 

 the death rate, but without avail. The adult tish were apparently 

 suffering from diseases of the gills, but there was no visible cause for 

 death in the case of the fry. A number of the specimens sent to head- 

 quarters were carefully examined, but failed to show any disease of 

 the organs. 



The regular distribution was commenced by car No. 3 on October 27 

 and finished December 4, though a small part of the stock was dis- 

 posed of in July, August, and September. 



The total number of fish distributed was 70,325 brook trout, 570 

 rainbow trout, 1,475 black-spotted trout, and 870 Loch Leven trout; in 

 all, 73,240, less than 50 per cent of the stock on hand at the beginning 

 of the year. 



BrooJc trout. — During the summer arrangements Avere made with the 

 owners of Wellington, Uneva, and Aspen lakes for the collection of 

 trout eggs on shares, the owners to get one-half of the fry resulting 

 from the eggs collected, and the United States Fish Commission to pay 

 all expenses. The first eggs were taken at Uneva Lake on August 11, 

 and at Wellington on November 8. By the close of the season 1,754,700 

 eggs had been collected from all sources, as indicated in the accom- 

 l)anying table. 



