70 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



The following shows the fish on hand at the close of the year ; 





Calendar year in which fish were hatched. 



Species. 



1900. 



1899. 



1898. 



1897. 



1894 or 

 earlier. 



Steelhead trout ..... 







1,630 

 244 



460 

 677 





Loch Leven trout 



8,400 

 145,000 





50 



Lake trout . 







Grayling 



293 









Brook trout 



is, 666 



















Total 



168,400 



292 



1,874 



1,137 



50 







DuLUTH Station, Minnesota (S. P. Wires, Superintendent). 



In the summer arrangements were made for collecting lake trout 

 and white-fish in the vicinity of Port Arthur, Ontario ; Grand Portage, 

 Minn., and at Isle Royale, Ontonagon, Houghton, Keystone, and 

 Montreal River, Michigan. Lake trout commenced spawning in the 

 vicinity of Port Arthur and Isle Royale about September 20 and in 

 Michigan during October. The collections were unusually large, and 

 could have been greatly increased had it not become necessary to 

 discontinue fishing in compliance with the closed-season laws of 

 Michigan and Canada. The total collections aggregated 12,400,000, 

 as follows: Rossport and Port Arthur, Ontario, 4,177,000; Houghton, 

 Keystone, and Montreal River, Michigan, 2,076,000; vicinity of Isle 

 Royale, Michigan, 3,758,000; vicinity of Ontonagon, 2,100,000; Grand 

 Portage, Minn., 289,000. During January and March 1,550,000 eyed 

 eggs were shipped to the commissioners of New York, Utah, and Wyo- 

 ming, and 300,000 transferred to Nashua station ; from the balance 

 9,047,000 fry were hatched and planted during April, May, and June. 

 The total loss of eggs and fry during the season was 1,503,000. 



As white-fish had just commenced spawning in the vicinity of Ross- 

 port and Port Arthur when the closed-season law took effect, only 

 200,000 eggs were collected, but in December 44,222,000 were trans- 

 ferred from ;^ut-in Baj'' and Detroit. The Michigan eggs arrived in 

 very poor condition, and the losses among them were very heavy. In 

 April and May 20,000,000 white-fish fry were liberated. 



At the beginning of the fiscal year there were 14,000 grayling fry on 

 hand. These were planted in August in Baptism River, Minnesota. 

 On the 12th of the following May 72,000 grayling eggs arrived in 

 excellent condition from Bozeman; they were placed in McDonald 

 hatching- jars, 36,000 to the jar, and sufficient water was turned on to 

 give them a gentle motion. They commenced hatching on the 19th 

 and finished in four days. As the current of water in the jar was 

 not strong enough to carry the fry out, they were permitted to remain 

 in the jars until all of them had been hatched, when they were trans- 

 ferred to an ordinary trout trough 14^ feet long, 10 inches deep, and 

 2 feet wide, well supplied with fresh water. They remained on the 

 bottom of the trough, acting very much like lake or brook trout, for 

 from 36 to 40 hours, after which they began swimming near the surface 



