386 U. S. BUREAU OF FISHERIES 



depletion or extermination, and are of a direct interest to a larger 

 number of people than are the commercial varieties. The latter are, 

 as a whole, more capable of maintaining their numbers by natural 

 replenishment. A need more clearly evident and benefits to a maxi- 

 mum number of people were the justification for this modification 

 of previous policy. 



A bald statistical and tabular summary of the year's activities 

 falls far short of presenting a true picture of the real nature of this 

 work. It is unlike the routine governmental function in that it calls 

 for cooperation with and assistance to nature. Much of the w^ork is 

 actually conduct'^d in the isolated wilderness and it reciuires resource- 

 fulness, ingenuity, and hardiness on the part of the personnel. The 

 follo\Ndng data will reveal what was accomplished by the Division of 

 Fish Culture in 1934, but the ultimate outcome and value of the work 

 will rest in the success or failure of anglers and commercial fishermen 

 several years hence. 



SPECIES PROPAGATED 



Four species which appeared in last year's records were not propa- 

 gated during 1934. Tliree of these, glut herring, cisco or lake herring, 

 and pollock, are commercial forms. No Dolly Varden trout, a 

 western trout for which there is little demand, were handled. The 42 

 principal varieties wliich were distributed include the most important 

 game fishes and a number of the commercial species which are most 

 amenable to artificial propagation. Wliile minnows, shiners, and bait 

 fish are propagated as forage forms at the hatcheries, they are not 

 available for distribution. The following summary shows the common 

 and scientific designation of the species produced. 



Catfishes (Siluridae): 



Catfish (Leptops olivaris). 



Spotted catfish (Ictalurus pundalus). 



Horned pout {Ameiurus nebulosus). 

 Carp (Cvprinidae): Common carp {Cypr in us carp io). 

 BuFFALOFisH (Catostomidae) : Common buffalo (Ictiobus sp.) 

 Shad and Herring (Clupeidae): 



Shad (Alosa sapidissima) . 

 Salmons, Trouts, and Whitefishes (Salmonidae): 



Common whitefish (Coregonus clupeaformis) . 



Chinook, king, or quinnat salmon {Oncorhynchus tschawytscha). 



Chum salmon (Oncorhynchus keta) . 



Pink or humpback salmon (Oncorhynchus gorhuscha). 



Coho salmon, silver salmon {Oncorhynchus kisatch). 



Red salmon, sockeye, or blueback salmon {Oncorhynchus nerka). 



Stoelhead salmon (Salnio gairdneri). 



Atlantic salmon {Salmo salar). 



Landlocked salmon {Salmo sebago). 



Rainbow trout {Salmo shasta) . 



Black-spotted trout, redthroat tr(Vit {Salmo lewisi). 



Loch Leven trout {Salmo levenensis). 



Lake trout, Mackinaw trout {Cristivomer natnaycush) . 



Brook trout {Salvelinus fontinalis) . 

 Graylings (Thymallidae): Montana grayling {Thymallus montanus). 

 Pikes (Esocidae): Pike and pickerel (Esox sp.) 

 Sx;xFisHEs (Centrarchidae); 



Chippie {Pomoxis annularis and P. sparoides). 



Largcmouth black bass {Micropterus salinoides). 



Sinallmouth black bass {Micropterus dolomieu). 



Rock bass {Ambloplitcs rupestris). 



W'armouth bass, goggle-eye {Chaenobryttus gulosus). 



Bluegill sunfish {Lepomis incisor). 



