I 



OVANDO 



The Ovando station is operated as needed to fulfill the stocking 

 programs in Montana above the regular hatchery load for the entire 

 state. For the past biennium it has been used for the introduction 

 of sockeye salmon in the Clearwater Chain of Lakes. 



FISH PLANTED FROM OVANDO HATCHERY 



May 1, 1952 to April 30, 1953 May 1, 1953 to April 30, 1954 



Species — 



Cutthroat 



Sockeye Salmon - 



TOTAL - - - 



Symbols Indicate: 



Number Size Weight 



11,520 

 969,344 



980,864 



*Legal. 



262.1 



270.1 



** Adult. tFry. 



Species — 



Sockeye Salmon 



TOTAL - - 



ttEyed Eggs. 



Number 



839,719 



839,719 



Size Weight 

 t 231.5 



231.5 



POLSON 



The Poison hatchery has 

 assumed great importance dur- 

 ing the review of the fish cul- 

 tural facilities in Montana. It is 

 at this station that the major 

 portion of kokanee for distribu- 

 tion in Montana has been prop- 

 agated. The cold water at 

 Poison retards the incubation 

 period and also retards the fry 

 development after hatching. 

 This condition prolongs the time 

 that kokanee fry swim-up and 



are ready for feeding and planting. Results of kokanee plantings 

 following this practice have been successful and therefore it is neces- 

 sary to consider Poison as an important unit in the fishery program 

 of Montana. If warmer water were used, the kokanee would be ready 

 to plant before the ice cover left many of the lakes. 



Poison fish production cannot be evaluated on a basis of cost 

 per pound of fish produced and thereby be compared with similar 

 production costs of catchable-size fish at productive warm water 

 trout stations. Poison does not produce catchable-size fish for put- 

 and-take stocking as do the warm water trout stations. It produces 

 "seed" fish at a time of year when they are needed for stocking. 



FISH PLANTED FROM POLSON HATCHERY 



