XL-REPORT OF OPERATIONS AT COLD SPRING HARBOR, NEW 

 YORK, DURING THE SEASON OF 1886. 



By Fred Mather. 



On the work done in hatching and distributing different fishes for 

 the U. S. Fish Commission at this station, which is leased by the iSTew 

 York Fish Commission, I have the honor to report as follows: 



CODFISH (GADUS MORRIIUA). 



Early in January, 1886, we had 2,000,000 eggs in the house, which 

 were doing well, and we could see the embryos in the eggs, but on 

 January 11 a cold northeast wind blew through our old hatchery and 

 froze our salt water solid, and they all perished. 



WHITEFISH (COREGONUS CLUPEIFORMIS). 



On January 7, 1886, we received from Mr. Frank N. Clark, of the 

 Northville, Mich., station, one case containing 1,000,000 whitetish eggs 

 in excellent order, the temperature of the eggs in the packages being 41° 

 Fahr. They were placed in seven McDonald hatching-jars aud did very 

 well, the loss being 57,700, or a little less than per cent., and 912,300 

 were distributed to the different waters on Long Island, but thus far I 

 am unable to report any captures of these fish iu waters on the island 

 previously stocked. They are deep, cold lakes containing plenty of 

 small crustaceans and other food, but, no net-fishing being allowed in 

 them, it is possible that the fish may be there, but have not been seen. 



LAKE TROUT (SALVELINUS NAMA*YCUSH). 



On December 19, 1885, we received from F. N. Clark, Northville, 

 Mich., one case containing 150,000 eggs iu good condition. Of these 

 we lost 12,000 eggs and fry before distributing, aud tried the experiment 

 of keeping 50,000 until the3 r should be a year old or so, in our rearing 

 ponds. They were put in the upper ponds in the coolest water, and 

 before September the last one had died. My experience with this fish 

 is that they are the most delicate of all the Salmonidce which I have had 

 any experience with, aud that they require colder water thau any others 

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S. Mis. 90 46 



