A Visit to a 



Federal Fish Hatchery 







We raise, rainbow and brown trout here. Other 

 Fish and Wildlife Service hatcheries raise dif- 

 ferent species of trout, like brook trout and cut- 

 throat trout. Still other hatcheries raise a number 

 of other kinds of tish. Each hatchery propagates 

 the kind of fish needed to support fisliing in the 

 waters stocked by the hatchery — waters in national 

 parks and forests, wildlife refuges, and other fish- 

 ing areas, and in farm fish ponds. 



We plant — that is, we place in lakes — some of 

 our trout when they are fingerlings, about II/2 to 



5 inches long. We plant them as fingerlings if it 

 is likely to be some little time before fishermen 

 will catch them, and if they will have a chance to 

 feed on plenty of insects, insect eggs and larvae, 

 and smaller fish or worms. 



On the other hand, when we stock waters where 

 a great many fishermen will fish for the trout as 

 soon as they ai-e planted, we hold and feed the 

 trout here until they are 6 to 9 inches long — or of 

 legal size according to the regulations of the State 

 in whose waters they are to be planted. Naturally, 



J^ -L.iiitjai.it - 



'[iULi, MASS- 



J 



UNITED STATES DEPARTMENT OF THE INTERIOR 



FISH AND WILDLIFE SERVICE 



CIRCULAR 28 



For sale by the Superintendent of Documents, U. S. Government Printing Office 

 Washington 25, D. C. - Price 10 cents 



