PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1987 47] 
There was a resumption in the shipment of fish and fish eggs to 
foreign countries. Canada received a number of trout eggs in con- 
summation of exchanges previously arranged, while the Argentine 
Republic, Cuba, and Mexico were likewise on the Bureau’s export 
list. The former was allotted 2,500,000 whitefish eggs. The Republic 
of Mexico has established a fish-cultural service and rainbow eggs 
were assigned in order to assist that agency in inaugurating its work. 
The Bureau again cooperated with the Insular Government of Puerto 
Rico, furnishing both trout eggs and pondfish. 
Throughout the year there are received numerous requests for the 
allotment of American species to foreign countries. In many in- 
stances preliminary inquiry reveals that conditions are unsuited for 
our more desirable varieties. The number of fish which can be 
furnished upon such request is also limited. Reports from foreign 
territories indicate that American game fish have established them- 
selves very successfully in many countries and they are very popular. 
Shipments of fish and eggs to foreign countries, fiscal year 1937 


Yearlings 


Country and species Eggs ARGLEGHITS 
Argentine: 
Wei Cerise =f Soi See ee ee a eee eee 27 500K0008 |-eee eee 
Canada: 
iBlackspotteditrout 220) 2 Ss= ee ee ee aS See S00%000!) Pace aees seas 
IBTOOKAGTOW tS oo ee Pa sd ee ow ee ean re 3008000225522 eee 
Toch Weventtrouts22- a2 ee eee et ee ee HO08230) | Saas 
Cuba: 
Wrap pies aes ee ee ee ee ee ee ee ee eee 665 
Mexico: 
aiMbOW tLOUtH = 2222 8 etek et ee ee dest: eee eeaes se eeeee ses SO 000 nee. ce erases 
Puerto Rico: 
(@atfishs= oo ss eee one Se oe tk a oe eS ee eee sel ecaseaseee ee 425 
Suamfish: 20ers es Soe ee ee ne en se eee ee oe eee eee 1, 000 
Rainbow trout. #2-- sen oe} ee eh ee eee ee 1OQ3000))|- 222 se ease 
Motalsoc so 2 2 SS es ee ee oe se eae ee eee 4, 390, 230 2, 090 



TRANSFER OF EGGS BETWEEN STATIONS 
While it is a routine administrative procedure to ship eggs between 
the various stations of the Bureau, a tabulation of such shipments is 
submitted as an illustration of the interrelationship between the units 
of an extensive hatchery system. Certain hatcheries are operated 
principally for the production of the raw material in the form of eggs. 
These shipments also serve to accelerate the spread of desirable 
species into new territories. Instance of this may be seen in tbe 
fact that the brown trout is becoming increasingly popular in the 
Eastern States, which has resulted in heavy shipments of the Loch 
Leven, a closely related form, from the Bozeman, Mont., station. 
In this connection it should be pointed out that the shipment of 
trout eggs to minor auxiliary stations, operated at low overhead cost, 
is a real economy in comparison with attempting to distribute large- 
size fish to the same area from a larger hatchery located at a more 
distant point. 
