REPORT OP THE COMMISSIONER OF FISHERIES. 63 



decided to turn over 3,000,000 green eggs to the Wisconsin Con- 

 servation Commission. With the appearance of the eye-spots in 

 February, further shipments, aggregating 1,350,000, were consigned 

 to applicants, and from the remainder 14,955,000 young fish were 

 hatched and distributed, most of them in Lake Superior. 



Incidental to the lake-trout collections, 1,785,000 whitefish eggs 

 were taken at the fishery near Grand Marais, Minn., and these, 

 together with a stock of 25,000,000 green eggs of this species for- 

 warded to Duluth from the Put in Bay field, produced 7,130,000 fry, 

 most of wliicli were planted in Lake Superior. 



Active operations were inaugurated in Michigan waters on October 

 18 with the taking of the first lot of lake-trout eggs in the vicinity of 

 Detour, Mich., and from that time until the end of November daily 

 collections of this species were made at 1 or more of the 13 collecting 

 stations operated from Northville. The favorable weather pre- 

 vailing during the spawning period permitted almost daily attend- 

 ance at the nets, and as there was a good run of fish the outcome of 

 the 0]:)erations was the largest collection of lake-trout eggs in the 

 history of the Bureau's work. Out of a total of 86,379,200 secured, 

 58,889,000 were taken in the vicinity of Charlevoix, St. James, and 

 Manistique, the yield in the remaining fields ranging from less than 

 200,000 at some points to several millions at others. Of this stock 

 32,000,000 in round numbers were laid down for hatching in the 

 Charlevoix, Alpena, and Sault Ste. Marie substations. About 

 18,000,000 were furnished green to Federal and State hatcheries 

 outside of Michigan, and all of the eyed eggs produced at Northville 

 from the remainder, amounting to 22,507,000, were also shipped on 

 assignment to other hatcheries. The eggs in the Sault Ste. Marie 

 hatchery were turned over later to the Michigan Fish Commission, 

 while from the stock incubated at the other substations named 

 14,662,000 were hatched and distributed on contiguous spawning 

 gromids. 



Whitefish spawning operations in the Michigan territory opened 

 October 24, in the Detroit River, and the last eggs of the season 

 were obtained on December 26 at Northport, Mich. From these 

 and nine additional collecting points, located in Saginaw Bay, upper 

 Lake Michigan, and Grand Traverse Bay, eggs to the number of 

 95,520,000 were obtained. Weather conditions throughout the 

 season were reported as normal, but the catch of the commercial 

 fishermen at all points was light, averaging not more than 50 per 

 cent of the take in previous years. The resulting shortage in the 

 stock of the Detroit hatchery was made up by the transfer thereto 

 of 48,680,000 eggs taken in Lake Erie under the direction of the 

 Put in Bay, Ohio, superintendent. The entire number yielded 

 100,000,000 eyed eggs, 60,000,000 of which were transferred to the 

 Alpena and Charlevoix hatcheries with the view of distributing the 

 resulting fry on near-by spawning grounds. The remaining 40,000,- 

 000 were hatched without loss at Detroit, and the product was hb- 

 erated in the Detroit River and on other spawning beds in the lower 

 lakes where operations had been conducted. 



The gathering of pike-perch eggs for stocking the Detroit hatchery 

 was begun April 11 in Saginaw Bay, off Bay City, Mich., and on May 

 5 in Munoskong Bay, an arm of St. Marys River. From these two 

 fields 162,150,000 eggs were secured. This number was reduced by 



