44 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



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



Dr. E. O. Sweeny, sir., tendered his resignation as superintendent to 

 take effect July 31, 1893. The resignation was accepted. Mr. S. P. 

 Wires, foreman of the station, was promoted to the position of super- 

 intendent. 



The work at this station was confined during the year to the propa- 

 gation of the whitefish, lake trout, brook trout, and pike perch. 



Whitefish. — Between the 1st and 18th of November 750,000 eggs were 

 collected: 500,000 from Siskowit Bay, Isle Eoyale, Mich., and 250,000 

 from Willey Island, vicinity of Bayfield, Wis. ; and on February 22 

 10,000,000 eggs were received from Alpena Station. These 11,500,000 

 eggs produced 10,190,000 fry, which were deposited as follows: May 2, 

 Easpberry Bay, Wisconsin, 2,000,000 ; May 2, Lake Superior, vicinity 

 of Iron Eiver, Wisconsin, 2,000,000; May 7, points between Duluth 

 and Iron Eiver, 2,000,000; May 11, Lake Superior, vicinity of Bayfield, 

 2,000,000; May 14, Lake Superior, vicinity of Isle Eoyale, 500,000; 

 May 18, Siskowit Lake, Isle Eoyale, 1,01)0,000; May 19, Lake Superior, 

 vicinity of Fish Island, Isle Eoyale, 490,000; May 19, vicinity of station, 

 200,000. 



Lalce trout. — The first lake trout eggs o( the season were collected at 

 St. Ignace Island and Kings Day, Ontario, September 25, and the last 

 at Bayfield, Wis., November 17. Collections were made as follows: 



St. Ignace Island, Ontario 973, 400 



Kings Bay, Ontario 729, 650 



Fisherruens Home, Isle Royale, Mich 163, 800 



Grand Portage, Minn 437, 300 



Fish Island and Rock Harbor, Isle Royale, Mich 295, 950 



Wright Island, Isle Royale, Mich 180, 000 



Washington Harbor, Isle Royale, Mich 270, 000 



Port Arthur, Ontario 199,900 



Bayfield, Wis 410,000 



Total 3, 660, 000 



From these were obtained 2,540,000 fry, which were planted in Lake 

 Superior in many localities in May and June. 



Broolc trout. — On January 13th, 20,000 eggs were received from the 

 Northville Station. There were lost of these, February, 1894, 1,000, 

 mostly fry, and in March 9,000 fry. June 25, 10,000 fry were deposited 

 in Washington Eiver, Isle Eoyale, Mich. 



Pike perch. — Between April 27 and 30, 23.000,000 eggs were collected 

 at Pike Eiver, Minn. In May there was a loss of 15,000,000 of these 

 eggs. The 8,000,000 fry hatched were deposited at the following 

 points: June 3, Pike Lake, St. Louis County, Minn., 2,500,000; June 4, 

 Lake Vermilion, vicinity of Tower, Minn., 2,500,000; June 8, Lake 

 Superior, vicinity of Sand Bay, Wis., 3,000,000. 



The average temperature of the water was as follows: October, 44°; 

 November, 35° ; January, 34° ; February, 34° ; March, 33° ; April, 32£°; 

 May (from 33° on May 1 to 58° May 31); June, 65°. 



