REPORT OF COMMISSIONER OF FISH AND FISHERIES. LXXXI 



between May 12 tMid 18. The Michigan Oominission received 12,000,000 

 of them for distribution in inland lakes in Lenawee, Oass, St. Joseph, 

 Calhoun, Barry, Jackson, Ingham, Cheboygan, Emmet, Antrim, and 

 Wexford counties, Mich. The remainder were planted as follows: 

 7,500,000 in Saginaw Bay, 4,000,000 in Thunder Bay, 1,000,000 in Hamlin 

 Lake, near Ludington, and 500,000 in Devils Lake, near Addison, Mich. 

 From the experience gained this spring it is believed that with fairly 

 good weather very large collections of pike-perch eggs might be made 

 in Saginaw Bay. 



DuLUTH Station, Minnesota (S. P. Wirks, Sitperintkndent). 



During August arrangements were made for collecting lake-trout 

 and white-lish eggs at a number of points in Minnesota and Ontario, 

 also at Isle Iloyale and Ontonagon, Mich. 



The lake trout commenced to spawn about the middle of September 

 in the vicinity of Eossport and Port Arthur, and along the Michigan 

 shores about the 20th. Eggs continued to come in until November 4, 

 the total collections aggregating 0,300,000; 1,950,000 of these were 

 obtained from the Isle Royale held, 315,000 from Grand Portage, Minn., 

 2,300,000 from Rossport, 1,235,000 from Ontonagon and vicinity, and 

 500,000 from Copper Harbor, Mich. Shipments amounting to 875,000 

 were made to other stations of the Commission, State fish commissions, 

 and private applicants, and 1,500 were sent to Chicago University for 

 biological purposes. The eggs retained at the station were carried 

 through the winter without unusual loss and commenced hatching late 

 in April. The distribution was started as soon as the yolk-sac was 

 absorbed — about May 10 — and lasted until June 30, the entire output 

 amounting to 1,335,000 fry, which were planted in the vicinity of the 

 spawning-grounds from which the eggs were secured. 



In addition to the 7,007,000 white-fish eggs collected in the vicinity 

 of Port Arthur, Ontario, 12,132,000 were transferred to the station from 

 Put-in Bay. From this stock 15,300,000 fry were hatched and planted 

 during the month of May in Lake Superior. 



In February, 100,000 brook trout eggs were received from Leadville, 

 and in May and June 100,000 grayling eggs from Bozeman, and 03,000 

 steelhead eggs from Clackamas. The biook-trout eggs were in excel- 

 lent condition, and hatched 87,308 fry, which were distributed in public 

 and private waters during the summer. The steelheads were shipped 

 in three consignments, the first of which reached the station in fair 

 condition, but only about 50 per cent of the others were saved. At 

 the close of the year 53,841 of these fish remained. On the grayling 

 eggs, received in two consignments, on June 26 and 27, there was a 

 loss of 15,000 in transit. The eggs were so far advanced on their arrival 

 that they commenced hatching as soon as placed on the trays, the water 

 temperature at the time registering 60°. Owing to this high tempera- 

 ture and to the poor condition of the eggs when received, only about 

 15,000 healthy fry remained at the close of the year. 



P O 99 VI 



