42 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
ers, and foreign countries, 2,285,000 of these eggs were reshipped, and 
from the remainder were produced 1,200,000 fry. In April, 1891, more 
than 600,000 fry were liberated in inland lakes of Michigan, 513,000 
being held for rearing. ‘The number of lake trout fingerlings and year- 
lings distributed from August 1, 1890, to May 18, 1891, amounted to 
187,805, an increase of 100 per cent over previous seasons. 
Rainbow trout.—The rainbow trout heretofore used as breeders were 
transferred, the water at the station having been found but poorly 
adapted to this species. ~ 
Landlocked salmon.—A shipment of 26,000 landlocked salmon eggs 
from Schoodic Station produced no results, all the fry perishing. 
ALPENA STATION, MICHIGAN (FRANK N. CLARK, SUPERINTENDENT), 
1889-90. 
The collections of the lake trout eggs which were handled at North- 
ville Station this year were made principally through Alpena Station. 
The collection of whitefish eggs began November 5, and continued 
into December, lakes Huron and Michigan affording about 43,000,006; 
about 40 per cent of the spawning fish were obtained from gill nets. 
Snowstorms and gales were encountered as usual in this work. 
The production of fry was 33,600,000, which were mainly liberated 
in lakes Michigan and Huron. Onaccount of the mild winter the eggs 
were fifteen to twenty days earlier in hatching. The temperature of the 
water in November was 384° F. During the four months preceding 
April 2 the water temperature varied but one degree from 34° F, On 
April 8 the temperature was 38°; April 30,.42°; April 15, 52°, 
1890-91. 
The whitefish eggs collected this season were mainly from Lake 
Huron, in the vicinity of the station. The taking of spawn began 
October 4 and was concluded December 6, 1890, the result being nearly 
51,000,000, of which about one-third were from fish taken in gill nets. 
Most of the eggs were from the first run of fish, the greater portion 
being obtained within a period of eight days. There were transferred 
to other stations 20,500,000, Hatching occurred April 10 to 30, 1891, 
and fry to the number of 24,060,000 were liberated during April and 
the early part of May. 
The collection of lake trout eggs commenced September 23, 1890, 
in the vicinity of Beaver Islands, the entire number, nearly 5,000,000, 
being forwarded to Northville Station. ; 
The water temperature September 30 was 60° F.; October 31, 459; 
during three months following November 30 it was 325° to 33°; during 
March, 34°; on April 15, 36°; on May 5, 46°. 
The immediate supervision of the station has been under Mr. 8, P. 
Wires, foreman. 
