42 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



ers, and foieign <(.imtries, 2,L*85,000 of these eggs were resliipped, and 

 lioiu the iciMainder W(m<' piodiiced 1,L'(»0,(»(K) fry. In April, ISltl, more 

 than GO(>,(K»o IVy were liberated in inhuul lakes of Mielii.i;an, oi;{,(K»0 

 being held for rearing. The number of hike trout lingerlings and year- 

 lings distributed from August 1, 181)0, to May 18, 1801, amounted to 

 187,805, an inerease of 100 ]mm- cent over i)revious seasons, 



Kainhow trout. — The rainbow trout heretofore used as breeders were 

 transferred, the water at the station having been found but jtoorly 

 adapted to this species. 



LandlocJced salmon.— A shipment of 20,000 landlocked salmon eggs 

 from Schoodic Station produced no results, all the fry i)erishing. 



Alpena Station, Michigan (Fuank N. Ci.auk, Supkkintkndknt). 



1889-90. 



The collections of the hike trout eggs which were handled at North- 

 ville Station this year were made principally through Alpena Station. 



The collection of whitefish eggs began Novendx-r o, and continued 

 into December, lakes Huron and Michigan affording about -13,000,00(>j 

 about 40 per cent of the spawning fish were obtained frcmi gill nets. 

 Snowstorms and gales were encountered as usual in this Avork. 



The production of fry was 33,600,000, which were mainly liberated 

 in lakes Michigan and Huron. On account of the mild winter the eggs 

 were fifteen to twenty days earlier in hatching. The temperature of the 

 water in November was 38^"^ F, During the four months preceding 

 April 2 the water temperature varied but one degree from 34° F. Ou 

 April 8 the temperature was 38^; April 30, 42°; April 15, 52°. 



1890-91. 



The whitelish eggs collected this season were mainly from Lake 

 Huron, in the vicinity of the staticm. The taking of spawn began 

 October 4 and was concluded December 0, 1890, the result being nearly 

 51,00(>,000, of which about onc-thiid were from fish taken in gill nets. 

 Most of the eggs were from the first run of (ish, the greater portion 

 being obtained within a i)eriod of eight days. There were transferred 

 to other stations 20,500,000. Hatching occurred April 10 to 30, 1801, 

 and fry to the nund)er of 24,000,000 were liberated during April and 

 the early itart of May. 



The colle(;tion of lake tnmt eggs commenced September 23, 1800, 

 in the vh^inity of IJeaver Islands, the entire number, nearly 5,000,000, 

 being forwarded to Northville Station. 



The water temperature Septendjer 30 was 00'^ \\; October 31, 45°; 

 during three months following November 30 it was32ioto330; during 

 March, •U'^; on April 15, 3(P; on May 5, 4CA 



The immediate sni»ervision of the station has been under Mr. S. P. 

 Wires, foreman. 



