REPORT OF THE COMMISSIOJTER OF FISHERIES. 35 



from fishermen of Lake Ontario, the great bulk of this take coming 

 from the Canadian side of the lake under an arrangement with the 

 fishery authorities of Canada. The hatchery was overstocked, and 

 consignments of eggs were made to New York, Pennsylvania, 

 and Canadian hatcheries. Fisheries at Fair Haven and Sodus Point 

 yielded 218,000,000 eggs of the cisco, and fisheries in the eastern 

 end of the lake produced additional eggs that brought the total to 

 239,950,000, of which 146,700,000 were transferred to hatcheries in 

 New York, Pennsylvania, and Canada. The immediate output 

 of the Cape Vincent station was 86,180,000 cisco fry, all planted in 

 Lake Ontario. 



In the usual operations on Lake Champlain addressed to the pike 

 perch, 245,350,000 eggs were taken at the newly acquired site near 

 the mouth of Swanton River, and after considerable numbers were 

 shipped to applicants the remainder were incubated at Swanton, 

 yielding 71,500,000 fry which were deposited locally. 



An attempt is being made to establish a run of chinook salmon 

 in the St. Lawrence River and Lake Ontario, and to this end chinook 

 salmon eggs in limited number are bein^ sent from the Pacific coast 

 to the Cape Vincent hatchery. The first shipment, consisting of 

 820,000 eyed eggs from the Little White Salmon hatchery on the 

 Columbia River arrived at Cape Vincent in November, 191S, and 

 798,400 fry were hatched therefrom. Some of the young reared in 

 troughs took food readily and made splendid growth and had small 

 mortality. The result of this shipment was the planting of 627,000 

 advanced fry and 150,000 fingerlings. 



Mention should be made of the inauguration of whitefish hatching 

 at Bear Lake, situated in Idaho and Utah. A field station, auxiliary 

 to the Springville hatchery, was established at Paris, Idaho, in the 

 autumn of 1918, and several million eggs were secured from fish 

 taken by net fishermen. The experience gained will be valuable in 

 planning for the continuance of this work, which is demanded in 

 order to perpetuate and maintain the whitefish peculiar to this lake. 



CULTIVATION OF POND AND RIVER FISHES. 



The numerous stations throughout the country that are concerned 

 with the maintenance of the supplies of fish in the rivers and minor 

 waters of the interior have in gcniTal been successful in meeting the 

 cver-increasinnj demands that nave been made on them for trouts, 

 basses, and otnor species. 



The demand for orook trout far exceeds the productive capacity of 

 the hatcheries when reliance is placed solely on the eggs obtainable 

 from brood fish and from wild fish in waters available to the various 

 hatcheries. It has, therefore, been necessary to supplement the 

 local collections by considerable numbers of eggs purchased from 

 commercial fish-culturists. During the year 1919 approximately 

 1 1 ,000,000 such eggs were distributed among 15 stations. The other 

 brook-trout eggs that were handled in 1919 consisted of 900,000 

 collected from wild fish in Vermont, 4,350,000 from wild fish in 

 Colorado, Utah, and Wyoming, and smaller numbers from domesti- 

 cated fish, the total number from all sources being 16,463,200. The 

 output of 11.903,665 included 7,638,615 di.stributed as fingerlings. 

 AH pending applications for brook trout have been filled by liberal 



