VIl.-REPORT OF OPERATIONS AT THE iNORTHVILLE AND 

 ALPENA STATION DURING THE SEASON OF 1884-'8r>. 



By Frank N. Ci,akk. 



The followiug report of work at the Michigan stations for the season 

 of 18S4-'85 is respectfully submitted. 



Table A combines the results of both stations in collecting and dis- 

 tributing eggs and young fish during- the year. The supply of eggs 

 was derived from the following sources : Brook and rainbow trout from 

 the breeding stock at Northville ponds; lake trout from the tisheries 

 adjacent to Alpena, Lake Huron; Loch Leven trout from a foreign ship- 

 ment, through the hands of Fred Mather ; grayling from the Manistee 

 and An Sable Rivers, iTorthern Michigan ; and whitefish from the fish- 

 eries of Lake Erie, Lake Huron, and the north shore of Lake Michigan. 



Tabi.k a. — Summary of eggs and fish handled at the Michigan stations, 1884-'8r). 



Brook trout 



Rainbow trout 



Lake trout 



Loch Leven trout 



Grayling 



Whitefish 



Eggs 

 received. 



Eggs 

 shipped. 



326, 850 

 111, 100 

 465,000 1 

 100, 000 

 20, 000 

 155, 000, 000 



170, 000 



47, 500 



345, 000 



55, 000 



5,000 



31, 000, 000 



Fish 

 hatched. 



20, 000 

 12, 000 

 05, 000 

 43, 500 

 12,000 

 , 000, 000 



Fish 

 shipped. 



16, 000 

 12, 000 

 05, 000 

 36, 500 



88, 000, 000 



Fish 

 retained at 

 hatchery. 



4,000 



7,000 

 12, 000 



The work of the ^Michigan stations during the past year was essen- 

 tially similar to that of the preceding one, the chief jioints of difference 

 being in extent and not in character or methods. The propagation 

 of whitefish was the principal feature of the season's operations, and 

 the field work for tliis service was largely extended. About 103,000,000 

 whitefish eggs were laid in at Northville from the fisheries of Lake 

 Erie, including the penning station at Monroe; and 52,000,000 at 

 Alpena from the I^akes Huron and Michigan fisheries. A considerable 

 force of men was required during the spawning season, and they were 

 stationed as follows : Lake Erie — at jS'orth Bass, Putin-Bay, and Ca- 

 tawba Islands, and at Toussaint Creek and Monroe, on the main shore ; 

 Lake Huron — at Alcona, Alpena, Eound Island, Scarecrow Island, 



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