PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1939 575 
Stations and substations operated and the output of each, fiscal year 1939—Continued 




Stations, substations, and species Eggs Fry Fingerlings Total 
Yellowstone Park, Wyo.: 
Blackspotted trout_-_-_--_----------- 264208;1290')| 2-2. ee eer es 5, 895, 445 32, 153, 735 
Graylings ==. ae Res ke 1, 524, 800 F952 2709 eee 5, 720, 070 
Jackson, Wyo.: 
Blackspotted ‘trouts_ +. -!2--Ls--2.+- 100, 000 469, 620 101, 020 670, 640 
IBLOUKsINO Musa eee een ee oa ae Pe eee eS ae eel cb ew ea 13, 200 13, 200 
TVA AR NOLES Sok ee oo ee ee | Ee ee ee] Pe ore eee eae 7, 500 7, 500 
PRINTED O WALL G Viliereet= ee eee |e ee 70, 310 70, 310 
GQreyling ese Seer 2 SP RE a ee See 1D1S480): |SAeeee eee Ms 101, 480 
MGtaleees eee ee oe see ee eee 5, 824, 802,070 | 2, 115, 405, 660 84, 332,955 | 8, 024, 540, 685 




EGG COLLECTIONS 
In spite of a slight reduction in hatchery output for 1939 the col- 
lections of eggs for that period exceeded the 1938 figure by some 355 
million. This is explained in part by the fact that a considerable 
number of fingerlings, particularly of salmon, are being held for dis- 
tribution during the succeeding fiscal year, and the 1939 distribution 
was in part achieved from the 1938 egg collections. The greatest in- 
crease was in the collection of cod eggs, which were increased by 
approximately 825 million, and in the pike perch work, where the 
increase was about 710 million. Mortalities in hatching these eggs 
may vary widely, with the consequent possibility of a reduction in 
the production of fry in spite of an increased take of eggs. 
Comparison of egg collections, fiscal years 1938 and 1939 











Species 1938 1939 Species 1938 1939 
Re es oe ee 27, 523, 000 48, 257,000 || Yellow perch___-_-___- 331, 425, 000 301, 668, 000 
Winitefish4* sso} er 4-49 123, 711, 000 52, 464, 000 || White perch_______-_- 6, 400, 000 8, 300, 000 
Chinook salmon____- 41, 336, 400 6351 240005|| (Codes ee 2, 372, 773, 100 | 3, 197, 555, 700 
Chum salmon ______- 16, 187, 000 11, 196, 800 || Haddock______-_--_- 1, 037, 330, 500 | 1, 178, 993, 700 
Silver salmon_______- 1, 300, 000 3, 080, 000 || Pollock___----------- 2, 116, 821, 200 | 1, 560, 497, 100 
Sockeye salmon_-____ 3, 180, 000 2, 969, 000 || Flatfish (flounder) ___| 1, 402, 749, 060 | 1, 318, 397, 100 
Humpback salmon _- 5 AT 000) |e Ost res Misckerel. ey ieee peut chsh ered | 11, 060, 000 
Rainbow trout_____- 28, 241, 300 30, 155, 900 || Lake herring---_-_--- 2, 200, 000 5, 325, 000 
Blackspotted trout __ 31, 048, 500 42, 898, 600 |} Glut herring _____-_- 2, 960, 000 8, 140, 000 
Loch Leven trout __- 1, 777, 500 899, 500 || Striped bass___------ 646, 000 3, 413, 000 
Wakerroug- === =~ = 1, 536, 900 JrSO2 O00 gl Can rer eres t es = a5 329) 200; QUON Aaa eens 
Brook trout________- 31, 061, 800 11, 576, 700 || Buffalofish___------- 387, 445, 000 78, 681, 500 
Steelhead trout_____- 1, 588, 800 35286 '900)| uobster-©——-2=- 5 ——- 8, 444, 000 12, 991, 600 
raving et ess soe oe 5, 837, 000 5, 117, 600 —_—— 
Galdentroutey et. ele oS a 18, 200 Noetals5+ ee 8, 574, 205, 000 | 8, 929, 774, 000 
Pike perch. -..----- 256, 371, 000 966, 755, 100 
| 



NOTES ON OPERATIONS 
COMMERCIAL SPECIES 
Pacific salmon. —It is recognized that the run of chinook salmon, 
which is the most valuable species of the Pacific salmon in the Colum- 
bia and Sacramento Rivers, is facing a very serious situation because 
of the construction of dams on these rivers. Millions of dollars are 
being spent by the Pacific Coast States and the Federal Government 
to maintain the run of this species. During the year 1939 the output 
of chinook salmon fingerlings from the Bureau’s hatcheries was ap- 
proximately 14 million over that of 1938. 
In the Puget Sound territory, the Birdsview (Wash.) station handled 
fewer eggs and fish than during the previous season but reared the 
