REPOET OF COMMISSIONER OF FISH AND FISHERIES. 



31 



Forty-one quiuniit «almon hatched in 1897 are kept in a deep pond 

 for experimental purposes. 



Of steelhead trout several old broods have been kept for experiment, 

 and two of the broods, numbering 1,019, are still retained. One brood 

 aii'orded 8,500 eggs. From these and from a lot received from Rogue 

 River there were hatched 33,994 fry. These suffered from an obscure 

 disease, and only 12,016 were left for distribution. 



In October there were distributed 3,350 rainbow trout hatched in 

 1901 and 1,056 hatched in 1900, leaving only a lot of 33 tiwh hatched 

 in 1899. 



The Scotch sea trout, like other species, has deteriorated under 

 domestication, the vitality of the eggs and fry growing constantly less. 

 In October 6,937 yearlings were distributed, and in November 68,950 

 eggs were taken from the brood stock. Of these 10,000 were distrib- 

 uted in the egg stage; the remainder were hatched, and as a result 

 7,694 fry were distributed in June. The adult stock on hand is 159. 

 The results from the introduction of this species are not encouraging, 

 and their propagation will be discontinued. 



From 100,000 grayling eggs shipped from Montana in May, 86,615 

 fry were hatched, and 36,333 fry were distributed in local waters. An 

 attempt was made to feed the balance, but about June 3 a sudden and 

 heavy mortality attacked them, and by the end of the month only 

 1,775 remained. This remnant has, as observed at other stations, 

 grown very rapidl}-. 



The lish food consisted of hogs plucks, purchased at an abattoir near 

 Boston. The total consumption was 5,346 plucks, weighing 23,790 

 pounds and costing $310.04, including transportation. 



From the entire stock of fry of all species in the spring of 1901 

 84.4 per cent were reared to fingerlings and distributed in October 

 and November. The Atlantic salmon did a trifle better than this, and 

 the landlocked salmon best of all, 94.4 per cent having been reared to 

 the fingerling stage. The aggregate production of the station for the 

 year, including auxiliary stations, is as follows: Eggs collected, 

 2,516,524; eggs distributed, 550,000; lish hatched, 1,321,490: fish dis- 

 tributed, 1,099,929. 



The stock on hand at the close of the year was as follows: 



a At Craig Brook. 



6 At Grand Lake Stream. 



