[7] OPERATIONS AT NORTHVILLE AND ALPENA. 



BROWN TROUT AND SAIBLING. 



735 



A case containing 20,000 brown-trout eggs and 15,000 saibliug eggs 

 shipped from Cold Spring Harbor, N. Y., by Fred Mather, arrived at 

 Nortkville on March 17 in first-class condition. The saibling hatched 

 soon after, but the fry refused to eat, and most of them died of "blue 

 sac" and starvation. Shipments of brown-trout eggs were made as 

 follows: March 21, 2,500 to Michigan fish commission, Paris, Mich.; 

 and March 28, 5,000 to Wisconsin fish commission, Madison, Wis. 

 There was considerable loss before hatching, but nearly 9,000 fry were 

 hatched and retained at station. 



Between November 18 aud December 21 a total of 9,400 eggs of brown 

 trout were taken from stock fish in the Northville ponds, but they 

 turned out quite poorly, and onl^ 1,500 fry were hatched. The spawn- 

 ing record is as follows: 



Record of broicn-trout spawning, season of 1886. 



No lake-trout eggs were taken, owing to a lack of funds available for 

 the purpose. This is greatly to be regretted, as no fish of equal rank 

 is more easily propagated, and, if held in confinement until of suitable 

 size aud age, it is remarkably adapted for diffusion to a large range of 

 waters into which the whitefish, brook trout, rainbow trout, and other 

 high-grade varieties cannot be established. As compared with other 

 trouts, the cost of obtaining the eggs is greatly in favor of lake trout, as 

 is also the percentage of young that can be reared in confinement until 

 of suitable size and age for distribution. During the fiscal year a total 

 of 6,150 of the lake trout, hatched in January and February, 1886, were 

 delivered to cars No. 2 and No. 3, and distributed chiefly in Ohio, Indi- 

 ana, Kentucky, and Tennessee. 



