PROPAGATION AND DISTBIBUTION OF FOOD FISHES, 193 3 475 



Grand Lake Stream, Maine. The record for jrradual iju])rovcnient 

 in production at these points was continued durin<]: the year. The 

 CraiiT Brook station handled 1,000,000 Atlantic sahnon efrfxs received 

 by e.xchange witli the Dominion of Canada. The substation at 

 Grand Lake Stream collects the only supply of land-locked salmon 

 egers available to the Bureau. The take of this species was somewhat 

 below the previous year, being 840,000. The au.xiliary also reared 

 and distributed a considerable number of brook trout and a limited 

 number of Atlantic salmon. 



In addition to these establishments the hatchery at Nashua, N.H., 

 enjoyed a successful season, producing besides approximately one-half 

 million trout, a limited number of sir.allmouth bass, salmon, and 

 bullhead catfish. One thousand five hundred feet of new fence was 

 installed during the year. 



At Hartsville, Mass., there was produced an average number of 

 trout for a normal season and sufficient brook-trout eggs were taken 

 from station brood stock to permit shipments to other points. The 

 personnel of this hatchery took charge of the collection of smallmouth 

 bass fry from certain waters in Connecticut. Five hundred sixty-five 

 thousand fry of this species were produced, a number greatly in excess 

 of that of the previous year. This work in cooperation with the State 

 of Connecticut simply comprises the taking by suitable methods of 

 the newly hatched fry available in certain lakes which are closed to 

 public fishing and in which, therefore, the development of an abundant 

 stock of smallmouth bass would be of no public advantage. 



The Pittsford (Vt.) experimental hatchery produced a considerable 

 number of trout for distribution in addition to its primary work of 

 investigation which is reported by the Division of Scientific Inquiry. 



COMBINATION TROUT AND POND-FISH STATIONS 



A limited number of hatcheries in the Middle West and South- 

 eastern sections are in a border-line territory for trout and therefore 

 propagate the cold-water trout and the warm-water pond fish such 

 as bass. In the Middle Western section the Manchester (Iowa) 

 station experienced the most productive year in its history. A 

 yield of approximately 4,000,000 rainbow trout eggs from station 

 brood stock was a high mark in this connection, and approximately 

 500,000 of these were produced from 2-year-old trout. The work 

 with the pond fish was limited, but there was a fair output of small- 

 mouth bass and rock bass. Some minor improvements were made 

 to the station property. 



At Neosho, Mo., the production of trout was very satisfactory 

 although the output of pond fish was not quite up to normal, the 

 latter condition being traceable to unfavoraV)le weather. This station 

 secures a large percentage of its stock of rainbow-trout eggs from a 

 cooperative establishment at Bourbon, Mo. A total of 4,500,000 

 rainbow-trout eggs were received from the collections at this i)oint 

 and at the Neosho station itself. Eight hundred sixty-nine thousand 

 pond Hsh including largemouth bass, crappie, sunfish, and channel 

 catfish were likewise produced. A considerable proportion of these 

 were derived from the leased ponds at Langdon, Ivans. The costs of 

 operating at the latter point were reduced approximately 50 percent 

 per thousand fish. 



