632 



U. S. BUREAU OF FISHERIES 



Summary, by species, of the output of fish and fish eggs during the fiscal year ended 



June SO, 1931 



Species 



Catfish.. 



Buffaloflsh 



Common sucker. 

 Carp 



Shad. 



Glut herring 



Whitefish 



Cisco 



Chinook salmon 



Chum salmon.. 



Silver salmon 



Sockeye salmon 



Humpback salmon 



Steelhead salmon 



Atlantic salmon 



Landlocked salmon 



Rainbow trout 



Golden trout 



Black-spotted trout 



Loch Leven trout 



Lake trout 



Brook trout 



Grayling 



Pike and pickerel 



Mackerel 



Crappie 



Largemouth black bass. 

 Smallmouth black bass. 



Rock bass 



Warmouth bass 



Sunflsh 



Pike perch 



Yellow perch 



Striped bass 



White bass 



Rio Grande perch 



Fresh-water drum 



Cod 



Haddock. 



Pollock 



Winter flounder 



Miscellaneous fishes 



Eggs 



92, 340, 000 



7, 375, 000 



112,995,000 



Total 2,327,421,000 4,474,344,000 



10, 960, 000 



15, 694, 000 



226, 000 



3, 576, 000 



16, 263, 000 



926, 000 



3, 025, 000 



30, 000 



5, 150, 000 



6, 268, 000 

 8, 995, 000 

 840, 000 

 1, 396, 000 

 1, 000, 000 



1,611,000 



30,990,000 



1,331,632,000 

 412, 477, 000 



263, 652, 000 



Fry 



11, 044, 000 



19, 490, 000 

 50, 000, 000 

 146, 455, 000 

 63, 400, 000 



3, 833, 000 

 17,475,000 



6, 909, 000 

 14, 623, 000 



1,312,000 

 42, 000 



38,000 



46, 000 



2, 748, 000 



24, 445, 000 



1, 791, 000 



3,113,000 

 8, 850, 000 



1, 036, 000 

 729, 000 



164, 363, 000 



113, 250, 000 



9, 500, 000 



193, 666, 000 



34,951,000 



240, 219, 000 



3, 341, 016, 000 



Fingerlings 



84, 521, 000 

 12, 104, 000 



25, 028, 000 



57, 308, 000 



411,000 



1, 636, 000 



32, 860, 000 



1, 145, 000 



1, 508, 800 



943, 600 



640, 500 



8, 238, 800 



25, 500 



9, 780, 600 

 4, 959, 400 



443, 900 



13, 109, 200 



3,000 



813, 600 



28, 548, 800 



2, 406, 000 



103, 700 



57, 300 



37, 900 



12, 652, 900 



2, 048, 200 



52, 800 

 48, 400 

 14, 500 



18, 590, 300 



320, 040, 700 



Total 



115, 



7, 



138, 



19, 



50, 



157, 



63, 



76, 



17, 



8, 



51, 



18, 



2, 



3, 



1, 525, 

 447, 

 240, 



3,604, 

 18, 



521,000 

 488,000 

 375, 000 

 023,000 

 490, 000 

 000,000 

 415,000 

 400,000 

 835, 000 

 886,000 

 771, 000 

 059,000 

 720,000 

 476, 800 

 968, 600 

 708, 600 

 388, 800 

 25,500 

 094, 600 

 702, 400 

 728, 900 

 296, 200 

 003, 000 

 926, 600 

 461, 000 

 548,800 

 442,000 

 832, 700 

 57,300 

 37, 900 

 652, 900 

 353, 000 

 298, 200 

 500, 000 

 52, 800 

 48,400 

 14,500 

 298,000 

 428,000 

 219, 000 

 668, 000 

 590, 300 



7,121,805,700 



Note.— 5,305 terrapins produced at Beaufort (N.C.) scientific station were turned over to the State of 

 North Carolina for planting. 



COOPERATION WITH OTHER CONSERVATION AGENCIES 



Propagation of fish life in this country is not confined to the activi- 

 ties of the Bureau of Fisheries. Elsewhere in this publication the 

 activities of the States in this work are shown, while various other 

 agencies, including many sportsmen's organizations and individuals, 

 are also engaged in such work. The fact that these agencies are 

 working toward the same ends, and in many cases in the same fields, 

 makes apparent the need of cooperation, in order to obviate duplica- 

 tion of effort and expenditure and to avoid wasteful overlapping of 

 distributions. Beneficial results have followed the readiness of the 

 bureau and the States to render mutual assistance in times of stress, 

 such as the overcrowding of hatchery facilities, abnormal losses 

 encountered through floods, disease conditions, or a lack of fish to 

 meet the demands. The joint use of apparatus, both for the handling 

 of eggs and fish and for distribution work, and the loaning of apparatus 

 and fish-cultural assistance have resulted in increased efficiency and 

 the more successful prosecution of the work. The following are cited 

 as some of the outstanding cases in which cooperation between the 



