REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



XLV 



Lake trout. — The egg's of this species were collected by the employes 

 of the Alpena Station, under the report of which station are given the 

 details of the work. Of the 2,853,000 eggs received, 1,900,500 were 

 shipped as follows : 



The eggs retained at the station, which began in January to hatch, 

 produced 200,000 fry. 



The distribution of yearlings was commenced January 23, 1892, and 

 completed April 12. The number shipped was 45,722, which were con- 

 signed to applicants in Wisconsin, Michigan, Iowa, Indiana, Ohio, 

 Kentucky, IsTew York, Pennsylvania, and Vermont, 



Blade- spotted trout, — On February 5, 1892, 1,000 seven-months old 

 trout of this species were received at the station, having been brought 

 by Mr. H. D. Dean, superintendent of the Leadville Station. They were 

 immediately placed in tanks, and commenced feeding well. 



WhiteJisJi. — Of the 370,000 eggs of the whitefish received from the 

 Alpena Station, 100,000 each were forwarded to Switzerland, France, 

 and the Indiana Fish Commission at Richmond. 



A noticeable feature in the work of the station was the success which 

 attended the shipments of eggs. In no shipment, which was reported 

 upon, was the loss more than 5 per cent, and in many cases there was 

 none. 



The loss ajiiong the rearing fish during the season was very great, 

 especially among the brook trout, which were attacked by a fungus. 

 The cause of this was not definitely determined, but was iirobably due 

 to the scarcity of water occasioned by the continued drought and unpre- 

 cedentedly warm weather during the whole season. The following- 

 table exhibits the progress of trout fry produced from the eggs of the 

 fall of 1891 to July 1, 1892: 



