PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1932 559 



arv at Grand Lake Stream, Me., concentrated, as heretofore, on the 

 collection of landlocked salmon eggs. Almost a million were taken, 

 slightly below the record of the previous year. A considerable num- 

 ber of the fish resulting from these eggs are held in rearing ponds, 

 for distribution as fingerlings 2 inches or more in length. In addition 

 to work with the landlocked salmon, a considerable number of brook 

 trout and a few Atlantic salmon were handled at this point. 



GAME FISH PROPAGATION AT COMBINATION TROUT AND POND FISH 



STATIONS 



Located in the Middle West and southeastern sections of the coun- 

 try, where w^ater conditions favor the existence of both cold and warm 

 water fishes, are the several stations devoted to the culture of both 

 trout and the pond fishes. The propagation of trout is the more 

 important feature, how^ever, at most of these establishments. 



At the W3^theville (Va.) station, one of the oldest in the service, 

 a very important feature of the year's work was the development 

 of auxiliary rearing plants on leased property and the transfer of 

 fish thereto from the main hatchery for rearing. At two of these, 

 one %\4thin 3 miles of the station and the other at Newcastle, Va., 

 facilities for such work were improved by the erection of necessary 

 buildings and the provision of additional pond space. The White 

 Sulphur Springs (W. Va.) station handled over 5,000,000 trout eggs 

 during the year, which, in view of its comparatively limited size, is 

 considered an excellent record. The same cooperative relations that 

 have existed in the past were maintained with the State of West 

 Virginia. Under this arrangement the State purchased 1,000,000 

 brook trout eggs which were incubated at the bureau's hatchery and 

 the resulting fry were turned over to be handled by the State. The 

 propagation of warm water pond fish at this station, including bass, 

 bream, and a limited number of rock bass, gave somewhat more 

 successful results than in previous years. Considerable attention 

 was given to maintaining the appearance of buildings and grounds, 

 since this hatchery is located at a point where it is subject to inspec- 

 tion by numerous visitors. 



Work at the Erwdn (Tenn.) station was conducted along the usual 

 lines, though rainbow trout propagation was curtailed somewhat by 

 a reduced brood stock, as a result of unusual mortality and the culling 

 of the older fish. A satisfactory output of both trout and pond fish 

 was secured at Manchester, Iowa, with no striking deviations from 

 hitherto established records. After prolonged and intensive effort 

 this station has succeeded in eradicating furunculosis, a disease which 

 has been taking a heavy toll of the rainbow brood stock. The Neosho 

 (Mo.) station administers substations at Bourbon, Mo., Langdon, 

 Kans., Tishomingo, Okla., and Natchitoches, La. The former is a 

 cooperative establishment conducted for the sole purpose of securing 

 rainbow trout eggs, while the three latter are pond-fish stations. In 

 all respects the results at Neosho w^ere equal to the records of previous 

 years. While the work at Bourbon was interfered w4th by a water 

 shortage, it was possible to exceed the egg collections of any previous 

 year at this point to the extent of 300,000. The shortage of water 

 was reflected in the incidence of parasitic affection. Reference to 

 activities of substations propagating pond fish exclusively appears 

 elsewhere. 



